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NORSOK STANDARD
SYSTEM REQUIREMENTS
WELL TESTING SYSTEMS
D-SR-007
Rev.1, January 1996
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Please note that whilst every effort has been made to ensure the accuracy of the NORSOK standards
neither OLF nor TBL or any of their members will assume liability for any use thereof.
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Well testing systems D-SR-007
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NORSOK standard 1 of 38
CONTENTS
1 FOREWORD 2
2 SCOPE 2
3 NORMATIVE REFERENCES 2
4 DEFINITIONS AND ABBREVIATIONS 3
4.1 Definitions 3
4.2 Abbreviations 3
5 FUNCTIONAL REQUIREMENTS 3
5.1 General 3
5.2 Products/services 3
5.3 Equipment/schematic 4
5.4 Performance/output 55.5 Regularity 5
5.6 Process/ambient conditions 5
5.7 Operational requirements 5
5.8 Maintenance requirements 7
5.9 Isolation and sectioning 7
5.10 Layout requirements 7
5.11 Interface requirements 7
5.12 Commissioning requirements 7
6 INFORMATIVE REFERENCES 8
ANNEX A SERVICE DATA SHEETS 9
ANNEX B EQUIPMENT DATA SHEET 19
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1 FOREWORDNORSOK (The competitive standing of the Norwegian offshore sector) is the industry initiative to
add value, reduce cost and lead time and remove unnecessary activities in offshore field
developments and operations.
The NORSOK standards are developed by the Norwegian petroleum industry as a part of the
NORSOK initiative and are jointly issued by OLF (The Norwegian Oil Industry Association) and
TBL (The Federation of Norwegian Engineering Industries). NORSOK standards are administered
by NTS (Norwegian Technology Standards Institution).
The purpose of this industry standard is to replace the individual oil company specifications for use
in existing and future petroleum industry developments, subject to the individual company's review
and application.
The NORSOK standards make extensive references to international standards. Where relevant, thecontents of this standard will be used to provide input to the international standardisation process.
Subject to implementation into international standards, this NORSOK standard will be withdrawn.
2 SCOPEThis standard describes functional, performance and operational requirements for well testing
equipment and systems.
3 NORMATIVE REFERENCESAPI Spec, 5CT Specification for casing and tubing
API RP 7G Recommended practice for drill stem design and operating limits
API Spec. 6A Specification for valves and wellhead equipment
API Spec. 14A Specification for sub surface safety valve equipment
API RP 14C Recommended practice for analysis, design, installation and
testing of basic surface safety systems on offshore production
platforms
API RP 14E Recommended practice for design and installation of offshore
production platform piping systems
API 17B Recommended practise for flexible pipes
API RP 44 Recommended practice for sampling petroleum reservoir fluids
API RP 520 Recommended practice for sizing, selection and installation of pressure-relieving devices in refineries
API RP 521 Recommended practice for pressure-relieving and depressuring
systems
DnV Certification Note 2.7-1 Offshore freight containers. Design and certification
ASME Section VIII Div. 1 and 2 Rules for construction of pressure vessels
ANSI/ASME B31.3 Chemical plant and petroleum refinery piping
NACE MR-01-75 Sulphide stress cracking resistant metallic materials for oil field
equipment
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NORSOK standard 3 of 38
4 DEFINITIONS AND ABBREVIATIONS4.1 Definitions
Normative references Shall mean normative in the application of NORSOK standards.
Informative references Shall mean informative in the application of NORSOK standards.
Shall Shall is an absolute requirement which shall be followed strictly in order
to conform with the standard.
Should Should is a recommendation. Alternative solutions having the same
functionality and quality are acceptable.
May May indicates a course of action that is permissible within the limits of
the standard (a permission).
Can Can requirements are conditional and indicates a possibility open to the
user of the standard.
4.2
AbbreviationsNone.
5 FUNCTIONAL REQUIREMENTS5.1 GeneralSI units and Imperial units are used in this specification. SI units with imperial units in brackets
shall be used in all documentation.
5.2 Products/servicesThe well testing equipment is grouped in 5 categories:
5.2.1 Drill stem test toolsThe downhole equipment shall be able to control test production of reservoir fluids into the test
tubing, alternatively injection of fluids from tubing into formation. It shall also provide means to
establish a permanent or closeable communication between tubing and annulus.
5.2.2 Landing string equipmentThe landing string equipment shall constitute the safety elements in the test string enabling shutting
in the well stream and perform a controlled disconnect at sea floor level. It shall also provide means
to lubricate working tools into the test string.
5.2.3 Surface equipmentThe surface equipment shall be able to receive high pressure well fluid, perform 3 phase separation
of the fluid and accurately measure the individual flow stream. Produced water and hydrocarbons
shall be disposed off without spill to sea.
5.2.4 Reservoir information acquisitionShall perform acquisition of representative and accurate surface and downhole pressure and
temperature measurements during flow production testing of the well. Shall also acquire
representative bottom hole and/or surface samples for detailed analysis.
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5.2.5 Test tubingShall provide a gastight mean to transport hydrocarbons to surface.
5.3 Equipment/schematic5.3.1 Drill stem test tools Packer of permanent or retrievable type. Tester valve. Circulating valves. Slip joint. Hydraulic jar. Safety joint. Auxiliary valves. Integrated Downhole Data Acquisition Tool. Subs and x-overs.
5.3.2 Surface equipment Surface test tree. Flexible flowline (for floaters). Rigid flowline (for jack ups). Flowline manifold/dataheader. Chemical injection pumps. Stand-alone safety valve. Choke manifold. Heat exchanger. Three phase separator. Surge tank. Transfer pump. Crude oil burners. Control cabin/laboratory. PSD/ESD system. Interconnecting piping. Instrumentation. Auxiliary equipment.
5.3.3 Landing string equipment Subsea test tree w/fluted hanger and slick joint. Lubricator valve. Retainer valve. BOP safety valve (for jack-ups). Subs and x-over.
5.3.4 Reservoir information acquisition Pressure and temperature recorders. Bottom hole sampling equipment. Surface sampling equipment.
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Trace element and wellsite chemistry analysis. Data acquisition system. Sand detection equipment.
5.3.5 Test tubingTest tubing.
5.4 Performance/outputThe provided equipment shall be mobilised, installed, commissioned, operated, maintained and
demobilised by competent personnel provided by the contractor.
5.5 RegularityN/A
5.6
Process/ambient conditionsStandard eqt. HPHT eqt.
Maximum reservoir pressure 690 Bar 1035 Bar
Maximum annulus downhole pressure 1035 Bar 1379 Bar
Maximum downhole temperature 150C 210C
Maximum wellhead temperature 100C 130C (175C for jack-ups)
Maximum operating temperature -20C -20C
H2S Service Yes Yes
CO2Service Yes Yes
All equipment shall be designed for offshore environment with corrosive and salt containing
atmosphere. 100 % relative humidity and surface temperature of -20 to 30C.
5.7 Operational requirements5.7.1 Surface equipmentThe pressure relief system from all relief devices shall be routed to relief headers for high or low
pressure relief. It is vendors responsibility to ensure that the relief system is suitably sized to
discharge the maximum gas and/or liquid design flow rate. Discharge shall by preference be
directed to the flareboom. Alternatively can discharge be routed to dedicated safe area minimum 3
meter below lower deck area.
Vessels designed for, or potentially operated as atmospheric vessels shall be equipped with devices
or designed so that return of air causing an explosive mixture or backfire into the vessel is
prevented.
The interconnecting piping system shall by preference be permanently installed with an effort to
minimise elastomers in the connections. Permanently installed piping shall be covered with grating
where appropriate to provide a safe working environment.
Any water dumped overboard shall contain less that 40ppm of hydrocarbons. Discharged water shall
be sampled and quantity measured.
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Burning of hydrocarbons shall take place without pollution to sea. An effort shall be made to
minimise smoke and pollution to air where this is not impairing the burning efficiently.
API 14C shall be used as a guideline to safeguard the surface process equipment. SAFE, SAC and
SAT charts shall be presented.
The main process equipment area shall be equipped with coaming to prevent oil spill from
spreading outside the dedicated area.
Heat radiation calculations shall be presented to Company upon request displaying maximum
exposure at maximum production rate in a worst case scenario.
When the piping installation has a change of pressure rating (spec. break), the lower rated pipe shall
be adequately protected against overpressure. Double isolation valves shall be installed where
practical.
All surface pressure containing piping and vessels shall be mounted in such a manner that blow-
down of the equipment is possible form safe area through a manual activation feature provided by
contractor.
Process control shall be through local pneumatic control.
The PSD system shall be electronically operated and monitored form contractors control room.
Permanently installed equipment shall be fitted with ladders, stairways and railing as required for
safe and convenient access for operation and maintenance. The equipment and layout design shall
allow for normal maintenance and service to be carried out between test periods, while hooked upon the rig.
The equipment necessary for executing the work shall be skid or container mounted to ease
movement and installation.
Equipment permanently installed on deck shall be fastened to deck to withstand a survival state
similar to that of the rig it is installed on. Fastening shall be calculated and documented.
Equipment which is shipped frequently to the offshore installation shall have lifting arrangement
suitably designed to withstand dynamic loads. DnV 2.7-1 is recommended used to comply with theregulatory requirements.
5.7.2 Downhole test toolsShall be annulus or tubing pressure operated.
All test string components shall be so designed that all handling on deck and drill floor can be
performed safely and efficiently.
Downhole test tools shall have a safety factor of minimum 1,1 included when quoting maximum
working pressure at working temperature. (I.e. quoting 15000 psi working pressure shall mean a
calculated maximum design pressure of 16500 psi).
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Internal profiles shall have no sharp edges or obstructions.
All downhole tools are to be drifted with an API standard drift.
The equipment shall be designed to withstand loads and pressure downhole, including maximumapplied annulus pressure in addition to the specified maximum working pressure for the tool.
Contractor shall make sure that the design load limits of the equipment are known to the operator
and not exceeded during operation. Safety factors for tools employed shall be documented and made
available upon request.
A bleed off function shall be provided wherever pressure may be trapped.
5.8 Maintenance requirementsContractor shall carry out calibration of all measuring devices before and after each job. Contractor
shall carry with him necessary spare parts to resume operation in case of malfunction. Anypermanently installed equipment shall be put in good storage order after the jobs, prior to the
contractor crew leaving the location.
5.9 Isolation and sectioningEach and any individual component in the process plant downstream the choke manifold shall have
the ability to be bypassed.
5.10 Layout requirementsContractor shall compress the equipment layout as much as possible while at the same time ensure
sufficient escape ways.
Contractor shall ensure that the maximum permissible deck load is not exceeded and if required,
supply necessary spreader beams below the equipment.
P&ID drawing with valve numbering and component specifications shall be made available.
General arrangement drawings shall be made available after installation of equipment.
Flow diagrams shall be made available after installation of equipment.
5.11
Interface requirements Steam. Electrical power. Compressed air. Sea water. Piping connections. Requirements will be described in the data sheets.5.12 Commissioning requirementsAcceptance test programme shall be made and performed with use of air and water as testing
medium. Programme shall include sequence for initial and pre-job pressure testing.
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6 INFORMATIVE REFERENCESN/A
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Annex A Rev. 1, January 1996
NORSOK standard 9 of 38
ANNEX A SERVICE DATA SHEETS
SERVICE DATA SHEET
TITLE:ANNEX 1 DRILL STEM TEST TOOLS SYSTEM REQUIREMENTS
Retrievable packer:
The packer shall be set by a simple manipulation of the string. It shall be possible to unseat and reset the packer without any change in performance. Shall hold pressure form above and below as specified in Data sheet.Tester Valve:
Shall be operated by annulus pressure. Unless otherwise specified by the Operator, the tester valve shall close if the annulus pressure is
bled off.
It shall be possible to open the tester valve with a pressure differential of 50% of workingpressure from below.
Circulating valves:
A minimum of two circulating valves shall be run in the test strings. One of the valves shall have the possibility of being operated an unlimited number of times. One of the valves shall be single shot. I.e. remain open once activated. The flow ports shall have sufficient area and resistance to erosion to permit circulation at an
effective rate with a pressure that does not cause operation of other tools.
Slip joints:
Shall have no internal obstructions in which wireline can be stuck due to internal movement. Shall be of internal balance type.Jar:
Shall be of a hydraulic type, and it shall be possible to repeat the jarring operation.Safety joint:
Shall when required cause a mechanical separation of the test string from the packer assemblywhen exceeding the tensile strength limit in the joint. The lower half remaining with the fish
shall have a design which enhances fishing of the string.
The safety joint shall not be of a rotation type if this interfere with right hand rotation tomechanically unlatch the subsea test tree.
Integrated downhole data acquisition tool:
Shall be concentric and have no internal obstructions. Shall be equipped with means to check for and safely release any internal pressure build-up
caused by downhole use or pressure testing.
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SERVICE DATA SHEET
TITLE:
ANNEX 2 LANDING STRING EQUIPMENT SYSTEM REQUIREMENTS
Subsea test tree:
The fluted hanger shall have an adjustable feature to allow the slick joint to be varied over agiven range.
It shall be possible to position the subsea tree in the rigs BOP stack so that middle piperams canbe closed on the slick joint and it shall be possible to close shear/blindram above the latched
subsea tree assembly.
The subsea tree assembly shall be equipped with a shearable sub located across the rig BOPshear-ram. Required force to shear shall be documented.
The subsea tree control system shall be equipped with a remote station for emergency closure ofthe tree.
The subsea test tree shall be equipped with a chemical injection system with a double non returnvalve located in tool assembly. The injection line shall be an integral part of the control hose
bundle.
The control hose bundle shall be one single length without splices or intermediate connections. The subsea test tree shall be able to cut coiled tubing with internal monoconductor cable and/or
7/16 logging cable.
The subsea tree shall be able to unlatch under tension. It shall however not be possible toaccidentally unlatch the tree while running in hole.
The subsea tree shall be equipped with a mechanical unlatch feature to be operated as asecondary mean in case of lost hydraulic power.
The subsea tree shall be able to transmit any torque required to operate downhole equipment.BOP safety valve:
Shall be installed in the test string such that BOP rams can be closed on a slick joint above thevalve.
The safety valve assembly shall be equipped with a shearable sub located across the rig BOPshear-ram. Required force to shear shall be documented.
The valve shall be of a pump through type. The valve shall be able to cut coiled tubing with internal monoconductor cable and/or 7/16
logging cable.
The valve shall be equipped with a chemical injection system with a double non return valvelocated in tool assembly. The injection line shall be an integral part of the control hose bundle.
Lubricator valve:
The lubricator valve shall be designed to be hydraulically pumped open and closed, withoutfailing to any position in case of lost control pressure. It shall be possible to pump through thevalve and also to pressure test against the valve from both below and above.
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SERVICE DATA SHEET
TITLE:
ANNEX 2 LANDING STRING EQUIPMENT SYSTEM REQUIREMENTS
Pressure lock between multiple valves run in combination shall not be possible.Retainer valve:
The valve shall retain landing string fluid under pressure following a disconnect. The valve shall be multi-shot. The valve shall when included on the string not impair disconnect time. The subsea test tree and retainer valve operating mechanism shall be such that both automatically
go to a safe closed position if the shearable sub is severed.
The subsea test tree and retainer valve systems shall include a system to allow pressure testing ofthe landing string following reconnection.
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SERVICE DATA SHEET
TITLE:
ANNEX 3 SURFACE EQUIPMENT SYSTEM REQUIREMENTS
Surface test tree:
The surface test tree shall be equipped with swab, master, kill and flow valves. A swivel,positioned above the master valve, shall also be incorporated to allow rotation of the string.
The surface test tree shall be able to be hung off in a standard drillpipe elevator and shall haveconnections for kill and flow lines facing down.
The kill and flow valve on the surface test tree shall be hydraulically operated and fail to closedposition: They shall be able to close in less than 5 seconds at temperature down to minimum
operating temperature. The control system shall be equipped with a remote station for emergency
closure of the tree. The tree shall be equipped with a frame for protection of valve stems and actuators. It shall be possible to interface the wing flow valve with the PSD/ESD system. It is recommended that the tree is equipped for installation of pressure and temperature sensors
upstream of the prod. Wing valve.
Flexible flowline:
The flexible line shall be compatible with the well fluid chemistry. The end connections shall be equipped with safety slings for attachment to the flowhead and
standpipe/flowline manifold.
The end connections shall be of the hub type.Flowline manifold:
The manifold shall have sufficient points for analogue pressure and temperature monitoring,electronic data acquisition sensors, dead weight tester, sand erosion probe, sampling and
injection, each equipped with double block and bleed valves.
The end connections shall be of the hub or flange type.Chemical injection pumps:
Pumps used to inject chemicals (methanol, glycol, separation enhancement additives) shall havefull redundancy and be equipped with filtration device.
The pumps shall have a trim suitable for the required service and chemical.Stand alone safety valve:
If installed, shall operate in parallel with surface test tree production wing valve. Shall have possibility to be overridden for pressure testing purposes.Choke manifold:
The choke manifold shall have two flow paths, one with facilities to install and change fixedchokes an done with an adjustable choke. Each flow path shall have minimum two closing valves
with bleed off facilities between the valves and ports for pressure measurements both up and
down stream of chokes. All valves in the choke manifold shall have the same pressure rating.
Provision for installation of fixed chokes in both flow paths shall be arranged.
Adjustable choke shall be so designed as to allow accurate adjustments in 4/64 increments,maintain accuracy over time in use and shall not cause accidental plugging of the flow path.
Heat exchanger:
The heat exchanger shall be arranged with an external heating source, preferably steam. The heat exchanger shall have a minimum of two coils with interconnection by means of a choke
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SERVICE DATA SHEET
TITLE:
ANNEX 3 SURFACE EQUIPMENT SYSTEM REQUIREMENTS
box either submerged inside the vessel or by an external connection.
Bleeding off coils for the purpose of changing choke shall be possible through double isolationvalves, with the discharge led to the low pressure relief header of safe area.
The adjustable choke assembly shall have pressure test capabilities for the purpose of testinghigh pressure coil tubes.
Shall be equipped with a temperature control system regulating the external heating source basedon the required well fluid discharge temperature.
Shall be equipped with pressure and temperature sensors up- and down-stream of choke. Shall be equipped with by-pass line with double valve arrangement together with isolation valves
on inlet and outlet of coils.
Shall be equipped with two independent pressure relief devices protecting the steam vesselagainst rupture. Each individual device shall be capable of discharging the maximum well
production rate in case of coil or tube rupture.
Shall be equipped with gas detection system for the steam-condensate discharged from theheater. This system shall be connected to an automatic shut-off device preventing gas laden
condensate returning back to the supplying boiler. By preference this detection shall be sampled
from the main vessel before the gas is allowed to enter into the condensate system.
If the secondary coil has a lower pressure rating than the primary coil and/or the downstreamvalve, the coil shall be equipped with a pressure relief device.
The steam inlet shall be equipped with a non return valve.Separator:
The separator shall be suitable for three phase gas/oil/water separation. The following features shall be included:
Pressure control system Oil and water level control system with liquid level glasses for water/oil and oil gas interface. Positions for both data acquisition and analogue pressure and temperature measurement on
vessel, gas and oil line.
Oil, water and gas metering facilities to cover the full flow capacity range of the separator. Injection point for:
Chemical at inlet manifold Methanol or glycol downstream gas metering device, upstream of pressure control valve.
Sampling outlets at oil-, gas- and water-lines. Flange connection for isokinetic sampling. Shall be equipped with shrinkage tester to assess gas content in oil leaving the separator. Shall be equipped with manhole situated so that internal visual inspection and cleaning can be
performed while the skid is still hooked up on the rig.
Inlet manifold shall enable by-pass of fluid to either oil or gas discharge line. The manifoldshall be equipped with sufficient valves to isolate the vessel itself.
Shall be equipped with two independent pressure relief devices protecting the vessel againstrupture. Each individual device shall be capable of discharging the design production rate in case
of overpressure.
Shall be equipped with pressure relief device protecting separator inlet/by-pass manifold.
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SERVICE DATA SHEET
TITLE:
ANNEX 3 SURFACE EQUIPMENT SYSTEM REQUIREMENTS
Surge tank:
Shall be equipped with pressure control system. Shall be equipped with level glasses for liquid/gas interface. Shall be equipped with positions for analog pressure and temperature measurement on vessel. Inlet manifold shall enable by-pass of fluid to oil discharge line. The manifold shall be equipped
with sufficient valves to isolate the vessel itself.
Shall be equipped with an independent pressure relief device protecting the vessel againstrupture. The device shall be capable of discharging the liquid production rate with associated gas
in case of over pressure due to liquid overfill or gas blow-by.
Shall be equipped with manhole situated so that internal visual inspection and cleaning can beperformed while the skid is still hooked up on the rig.
Transfer pump:
Shall be installed to give sufficient NPSH to enable continuos operation of the pump if used todischarge crude oil to burners when operating the surge tank as a 2nd stage separator.
Crude oil burners:
Shall be capable of complete combustion of crude oil without fall-out or pollution to sea. The oil and compressed air inlet lines on the burner shall be equipped with non return valves if
there is any remote possibility that the two media could enter the opposite media line and
develop a combustible mixture.
The burners shall be equipped with remotely controlled rotation device, if required for burningefficiency, ignition system and a pilot light for each atomised fluid stream.
The burners shall be equipped to remotely select number of heads or guns to effectively select theoptimal number for the produced fluid content.
If the pressure rating of the burners are less than that of the input source, the burners shall beequipped with a pressure relieving device.
Air compressors:
Shall be suitable for installation in zone 2 area when indicated in data sheet. Shall be equipped with automatic shutdown device in case of exposure to hydrocarbon gases.Test laboratory cabin:
Shall be pressurised and equipped with gas sensors on the air intake, fire extinguishing systemand two escape routes.
PSD and ESD system:
The PSD (Production Shut Down) system shall be capable of shutting in the well on theflowhead production wing valve. Activation shall take place as automatic functions from sensors
installed as mutually agreed using API 14C as a guideline, or by manual activation of PSD
buttons located at the following minimum places:
Driller cabin Separator area Inside or outside Operators office
The ESD (Emergency Shut Down) system shall be capable of shutting in the well on the subseatest tree by manual activation of ESD buttons located at the following minimum places: Outside Operators office
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SERVICE DATA SHEET
TITLE:
ANNEX 3 SURFACE EQUIPMENT SYSTEM REQUIREMENTS
One additional convenient location The PSD and ESD buttons shall be separated, have protective cover and be clearly marked. The PSD and ESD system shall be equipped with two levels where level 1 shall be a PSD which
stops the flow by closure of in-line valves. Level 2 shall be an ESD which will blow down the
pressurised vessels in the plan after discontinuation of flow has been confirmed.
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SERVICE DATA SHEET
TITLE:
ANNEX 4:RESERVOIR INFORMATION DATA SYSTEM REQUIREMENTS
Downhole pressure and temperature gauges:
The recorded data shall be read, processed and presented in hardcopy on site. Electronic gauges shall be able to secure storage of recorded data in case of power failure
downhole.
Gauge operating procedure shall include positive verification of gauge recorder operation prior toinstalment in the carrier.
Any cartridge that could accumulate an accidental pressure build-up inside shall be so designedthat projection of components shall not be possible during disassembly.
The recorded data shall be read, processed and presented in hardcopy and ASCII datafile on site. All gauges shall have a valid calibration certificate describing both Master calibration and
Calibration check over the entire pressure range at the expected downhole temperature. These
certificates shall be made available to the Operator prior to shipment.
After the job, a post calibration check shall be carried out at the same temperature and repeatingthe pressure steps used in the pre job calibration check.
If pre- or post-test calibrations indicates deviations from specified accuracy, a new mastercalibration shall be performed.
Calibration results shall be included in the final report.Gauge carrier:
Gauges shall be installed in the carrier while on deck, and carrier pressure integrity tested.
Contractor shall provide means for pressure testing on deck with gauges installed. It must bepossible to connect the gauge carrier to the string without breaking tested seals.
Gauge carriers shall be internally concentric.Bottom hole sampling:
Sampling equipment shall be of mercury free type. Shall be designed so that several samplers can be run in the well simultaneously and fired
individually by surface activation or by mechanical clocks.
There shall be provisions for checking opening pressure and bubble point of the sample prior totransferring it from the sampler to the shipping bottle, or preparing the sample chamber for
transportation to shore.
The activation of the sampling mechanism shall be designed so that any accidental release ofsampling valves is prevented. This includes release in case of mechanical shock.
For electrically triggered samplers, sampling may not be initiated by any other electrical or radiosignal than that transmitted through the cable on which the sampler is run.
The minimum volume of each sample shall be 0,6 litres. Once activated, the sample shall befilled in a controlled manner (maximum 5 minutes) in order to prevent drawdown below bubble
point.
Surface sampling:
Pressurised sampling equipment is to be of mercury free type. Sample containers for pressurised samples shall have been cleaned out and re-certified prior to
use. Certification documentation is to be available with bottle. Provisions shall be made for single phase hydrocarbon sampling at wellhead.
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NORSOK standard 17 of 38
SERVICE DATA SHEET
TITLE:
ANNEX 4:RESERVOIR INFORMATION DATA SYSTEM REQUIREMENTS
Simultaneous sampling of oil and gas from separator at controlled pressure and temperature shallbe possible. Pressure and temperature shall be monitored during sampling and shall be recorded
on sample form to be included with bottle.
Provisions shall be available for two phase sampling in gas outlet line from separator, or othersite for monitoring of separator efficiency and carry over.
Trace element and wellsite chemistry analysis:
Shall include on-site monitoring of well stream properties and components which influence wellstream processing and/or are of importance with respect to safety, health and environment.
Shall provide onsite analysis of gas and fluid properties including densities adjusted to standardtemperature.
Shall provide chemical analysis of water with determination of density, resistivity, salinity andquantification of essential ions.
Surface data acquisition:
Provision shall be available for continuos monitoring of wellhead pressure and temperature atsurface test tree, upstream and downstream of choke, annulus pressure, sand detection sensor,
separator oil, gas and water flow rates, separator pressure and temperature and separator
downstream parameters.
Monitoring system shall have 100% redundancy and shall be able to secure storage of recordeddata in case of power failure.
All sensors and interconnecting cables shall be suitable for installation in a zone 2 environment. All sensors and metering devices shall have valid calibration certificates. Documentation to be
available on site.
Original raw data and all parameters used in the calculations shall be available upon request. The data shall be available on-line in real-time. Printed reports and ASCII data file(s) shall be
available on site.
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NORSOK standard 18 of 38
SERVICE DATA SHEET
TITLE:
ANNEX 5 TEST TUBING SYSTEM REQUIREMENTS
Test tubing:
The test tubing shall be equipped with connections providing a gas tight seal at rated pressure. Length of joints of test tubing shall be 100% inside the tolerance of the specified API range, but
with a minimum length of no less than 8,84m.
All tubular goods shall be internally cleaned and all mill scale removed prior to inspection,coating and delivery. All materials used to clean and/or prepare tubular for inspection or repair
shall be harmless to the pieces being inspected.
After successful thread inspection, the threads shall be thoroughly cleaned, coated, doped, andthread protectors fitted. Anti-galling requirements will be specified in the Data sheet.
The tubing shall be drifted using an API standard drift.
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NORSOK standard 19 of 38
ANNEX B EQUIPMENT DATA SHEET
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.1 DATASHEET 0: GENERAL INFORMATIONWell information
Type of well Wildcat, Exploration, Appraisal
Possibility of sand production Low, Medium, High
Max. Sand Free Rate Test Yes, No
Possibility of water production Low, Medium, High
Possibility of hydrate formation Low, Medium, High
Possibility of emulsion problems Low, Medium, HighPossibility of foaming problems Low, Medium, High
Maximum oil production rate m3/d, BOPD
Maximum gas production rate MSm3/d, MMSCF/d
Maximum water production rate m3/d, BWPD
Maximum H2S concentration ppm
Maximum CO2concentration % (Vol, mol)
Maximum bottom hole pressure Bar, psi
Maximum bottom hole temperature C, F
Maximum wellhead pressure Bar, psi
Maximum wellhead temperature C, F
Maximum well inclination degrees
Maximum well depth m, ft
Mud system used during drilling OBM, WBM
Completion fluid / packer fluid
Completion fluid / packer fluid specific gravity
Cushion type
Casing diameter mm, inch
Casing grade (API)
Casing weight kg/m, lbs/ft
m, ft MD below RKB Bottom Top
Perforating interval no 1 m, ft
Perforating interval no. 2 m, ft
Perforating interval no. 3 m, ft
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Annex B Rev. 1, January 1996
NORSOK standard 20 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.1 DATASHEET 0: GENERAL INFORMATIONDrilling unit information
Piping between drill floor and test area
Nominal diameter mm, inch
Pressure rating Bar, psi
Inlet connection (Hub, flange, dimension)
Outlet connection (Hub, flange, dimension)
Standpipe available Yes, no
Standpipe data Nominal ID/Rating/Connections/Height
Piping to burner boom
High pressure gas line (connection, size, rating)
Low pressure gas line (connection, size, rating)
Oil line (connection, size, rating)
Water line (connection, size, rating)
Air line (connection, size, rating)
Pressure relief system To burner/below well
Electrical power available for pumps and lab cabin, utility
Voltage Volt
Maximum current Amp
Frequency Hz
Maximum output power kW, hk
Terminal connection
Other information
Steam supply (capacity at pressure and temperature) kg/hr
Air supply for burners ltr/min
Water supply for burners m3/hr
Maximum burner head weight limitation kg, lbs
Remote control shutdown lines installed Yes, no
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Annex B Rev. 1, January 1996
NORSOK standard 21 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.1 DATASHEET 0: GENERAL INFORMATIONCoaming of well test area available Yes, no
Maximum load to be placed on deck area Metric ton/m2
Riser - BOP configuration
BOP manufacturer
Size Inch
Minimum internal diameter mm, inch
Pressure rating Bar, psi
BOP ram temperature rating C, F
Ram locations
Datum to centre lower pipe ram mm, inch
Datum to centre middle pipe ram mm, inch
Datum to centre upper pipe ram mm, inch
Datum to centre shear/blind ram mm, inch
Ram thickness mm, inch
Location of lowest choke line inlet/outlet
Wellhead configuration
Manufacturer
Wear bushing size Inch
Wear bushing taper angle degrees
Distance datum to wear bushing nominal ID mm, inch
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Annex B Rev. 1, January 1996
NORSOK standard 22 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.2 DATASHEET 1 DRILL STEM TEST TOOLSOperators min.
requirem.Vendors data
Packer
Type (brand name)
For casing diameter mm, inch
For casing grade (API)
For casing weight lbs/ft
Pressure rating Bar, psi
Temperature rating C, F
Maximum differential pressure (collapse) Bar, psi
Maximum differential pressure (burst) Bar, psi
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Tester valve
Type (name)
Pressure rating Bar, psi
Temperature rating C, F
Maximum test pressure form above Bar, psi
Maximum differential opening pressure from below Bar, psi
Operating pressure range to open Bar, psi
Can valve be permanently closed by over pressure Yes, no
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Tester valve reference tool
Pressure rating Bar, psi
Temperature rating C, F
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Annex B Rev. 1, January 1996
NORSOK standard 23 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.2 DATASHEET 1 DRILL STEM TEST TOOLSOperators min.
requirem.Vendors data
Operating pressure range to close Bar, psi
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Tubing operating circulating valve
Type
Pressure rating Bar, psi
Temperature rating C, F
Minimum differential opening pressure Bar, psi
Closing method
Number of operating cycles Single, no. multi cycles
Maximum rate tubing to annulus l/min, gpm
Maximum rate annulus to tubing l/min, gpm
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Annulus operated circulating valve
Type 1
Pressure rating Bar, psi
Temperature rating C, F
Maximum differential opening pressure Bar, psi
Operating pressure range to open Bar, psi
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Annex B Rev. 1, January 1996
NORSOK standard 24 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.2 DATASHEET 1 DRILL STEM TEST TOOLSOperators min.
requirem.Vendors data
Operating pressure range to close Bar, psi
Number of operating cycles Single, no. multi cycles
Maximum rate tubing to annulus l/min, gpm
Maximum rate annulus to tubing l/min, gpm
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Type 2
Pressure rating Bar, psi
Temperature rating C, F
Maximum differential opening pressure Bar, psi
Operating pressure range to open Bar, psi
Operating pressure range to close Bar, psi
Number of operating cycles Single, no. multi cycles
Maximum rate tubing to annulus l/min, gpm
Maximum rate annulus to tubing l/min, gpm
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Slip joint
Pressure rating Bar, psi
Temperature rating C, F
Total stroke required mm, inch
Total stroke pr. slip joint mm, inch
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
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Annex B Rev. 1, January 1996
NORSOK standard 25 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.2 DATASHEET 1 DRILL STEM TEST TOOLSOperators min.
requirem.Vendors data
Tensile strength kg, lbs
Hydraulic jar
Pressure rating Bar, psi
Temperature rating C, F
Force to activate (maximum pull before jar) kg, lbs
Stroke length mm, inch
Tensile strength (maximum pull after jar) kg, lbs
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Safety joint
Type
Pressure rating Bar, psi
Temperature rating C, F
Operating method
Torque required Nm, ft, lbs
Safety joint, continuation
Pull required kg, lbs
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Tubing tester valve
Type (flapper/ball)
Pressure rating Bar, psi
Temperature rating C, F
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Well testing systems D-SR-007
Annex B Rev. 1, January 1996
NORSOK standard 26 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.2 DATASHEET 1 DRILL STEM TEST TOOLSOperators min.
requirem.Vendors data
Pressure to permanently open Bar, psi
Method to verify opening
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Sampling tool
Type
Pressure rating Bar, psi
Temperature rating C, F
Operating method
Maximum sample pressure rating Bar, psi
Closing means (ball/sleeve)
Pressure range to close Bar, psi
External diameter/OD mm, inch
Sampling tool, continued
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
Tensile strength kg, lbs
Downhole safety valve
Type
Pressure rating Bar, psi
Temperature rating C, F
Pressure to activate Bar, psi
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (API/Hydril/Vam/etc.)
Bottom connection (API/Hydril/Vam/etc.)
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Well testing systems D-SR-007
Annex B Rev. 1, January 1996
NORSOK standard 27 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.2 DATASHEET 1 DRILL STEM TEST TOOLSOperators min.
requirem.Vendors data
Tensile strength kg, lbs
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Annex B Rev. 1, January 1996
NORSOK standard 28 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.3
DATASHEET 2 LANDING STRING EQUIPMENTOperators min.
requirem.Vendors data
Fluted hanger
Type/model
Dimensions/OD mm, inch
Pressure rating Bar, psi
Temperature rating C, F
Steel quality (DIN, ASTM, BS, etc.)
Top connection (type, dimension, etc.)
Bottom connection (type, dimension, etc.)
Tensile strength at zero pressure kg/lbs
Tensile strength at max. pressure kg/lbs
Slick joint
Pressure rating Bar, psi
Temperature rating C, F
Length mm, inchExternal diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (type, dimension, etc.)
Bottom connection (type, dimension, etc.)
H2S; CO2, Acid service
Tensile strength at zero pressure kg/lbs
Tensile strength at max. pressure kg/lbs
Lubricator valve
Type/model
Pressure rating Bar, psi
Temperature rating C, F
Length mm, inch
Lubricator valve, continued
External diameter/OD mm, inch
Internal diameter/ID mm, inchTop connection (type, dimension, etc.)
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Well testing systems D-SR-007
Annex B Rev. 1, January 1996
NORSOK standard 29 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.3 DATASHEET 2 LANDING STRING EQUIPMENTOperators min.
requirem.Vendors data
Bottom connection (type, dimension, etc.)
H2S; CO2, Acid service Yes, no
Tensile strength at zero pressure kg/lbs
Tensile strength at max. pressure kg/lbs
Subsea test tree
Type/model
Pressure rating Bar, psi
Temperature rating C, F
Overall length mm, inch
Length disconnected mm, inch
Transmittal torque range Nm, ft, lbs
Maximum working water depth m, ft
Maximum load carrying capacity at zero pressure kg, lbs
Maximum load carrying capacity at max. pressure kg, lbs
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (type, dimension, etc.)
Bottom connection (type, dimension, etc.)
H2S; CO2, Acid service Yes, no
Chemical injection Yes, no
Close valve and unlatch time 150m water depth sec
350m water depth sec
600m water depth sec
1000m water depth sec
Subsea test tree, continued
Coiled tubing w/7/32 cable cutting capabilities Yes, no
7/16 logging cable cutting capabilities Yes, no
Retainer valve
Type/model
Pressure rating Bar, psiTemperature rating C, F
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Annex B Rev. 1, January 1996
NORSOK standard 30 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.3 DATASHEET 2 LANDING STRING EQUIPMENTOperators min.
requirem.Vendors data
Length mm, inch
External diameter/OD mm, inch
Internal diameter/ID mm, inch
Top connection (type, dimension, etc.)
Bottom connection (type, dimension, etc.)
H2S; CO2, Acid service Yes, no
Maximum load carrying capacity at zero pressure kg, lbs
Maximum load carrying capacity at max. pressure kg, lbs
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Annex B Rev. 1, January 1996
NORSOK standard 31 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.4
DATASHEET 3 SURFACE EQUIPMENTOperators min.
requirem.Vendors data
Surface test tree
Type/model
Pressure rating Bar, psi
Maximum temperature rating C, F
Minimum temperature rating C, F
Maximum load carrying capacity at zero pressure kg, lbs
Maximum load carrying capacity at max. pressure kg, lbs
Internal diameter/ID mm, inch
Steel quality (ASTM, DIN, BS)
Weight kg, lbs
Flowline connection (type, dimension, etc.)
Kill-line connection (type, dimension, etc.)
Top connection (type, dimension, etc.)
Bottom connection (type, dimension, etc.)
H2S; CO2, Acid service Yes, no
Tubing swivel
Type/model
Pressure rating Bar, psi
Maximum temperature rating C, F
Minimum temperature rating C, F
Maximum load carrying capacity at zero pressure kg, lbs
Maximum load carrying capacity at max. pressure kg, lbs
Internal diameter/ID mm, inch
Steel quality (ASTM, DIN, BS)
Weight kg, lbs
Top connection (type, dimension, etc.)
Bottom connection (type, dimension, etc.)
H2S; CO2, Acid service Yes, no
Flowline manifold/dataheaderPressure rating Bar, psi
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Well testing systems D-SR-007
Annex B Rev. 1, January 1996
NORSOK standard 32 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.4 DATASHEET 3 SURFACE EQUIPMENTOperators min.
requirem.Vendors data
Maximum temperature rating C, F
Minimum temperature rating C, F
Internal diameter/ID mm, inch
Inlet connection (type, dimension, etc.)
Outlet connection (type, dimension, etc.)
Number of outlets
Outlet threads/connections Type
Connection point for sand detector Type
H2S; CO2, Acid service Yes, no
Chemical injection pumps - High volume fluids
Type/model
Maximum output pressure Bar, psi
Capacity at maximum pressure l/min, gpm
Power kW
Chemical injection pumps - PPM fluids
Type/model
Maximum output pressure Bar, psi
Capacity at maximum pressure l/min, gpm
Power kW
Choke manifold
Pressure rating Bar, psi
Maximum temperature rating C, F
Minimum temperature rating C, F
Nominal size mm, inch
Maximum fixed choke size mm, inch
Choke manifold, continuation
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Annex B Rev. 1, January 1996
NORSOK standard 33 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.4 DATASHEET 3 SURFACE EQUIPMENTOperators min.
requirem.Vendors data
Maximum adjustable choke size mm, inch
Weight kg, lbs
Inlet connection (type, dimension, etc.)
Outlet connection (type, dimension, etc.)
H2S; CO2, Acid service Yes, no
Heat exchanger
Type/model
Pressure rating Bar, psi
Pressure rating HP coil or tubes Bar, psi
Pressure rating LP coil or tubes Bar, psi
Maximum temperature rating C, F
Minimum temperature rating C, F
Dimension of HP coil or tubes mm, inch
Dimension of LP coil or tubes mm, inch
Submerged adj. choke between HP and LP coil/tube Yes, no
Maximum adjustable choke size mm, inch
Heating source
Heating power kW, BTU/day
Steam requirement (at pressure and temperature) kg/hr, lbs/hr
Inlet connection (type, dimension, etc.)
Heat exchanger, continue
Outlet connection (type, dimension, etc.)
Steam connection (type, dimension, etc.)
Weight kg, lbs
H2S; CO2, Acid service
Separator(s)
Type/model (vertical/horizontal)
Design code (ASME, DIN, BS, TBK)
Pressure rating Bar, psi
Maximum temperature rating C, FMinimum temperature rating C, F
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Annex B Rev. 1, January 1996
NORSOK standard 34 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.4 DATASHEET 3 SURFACE EQUIPMENTOperators min.
requirem.Vendors data
Oil capacity m3/d, BOPD
Gas capacity at low liquid level Mm3/d, MMSCF/d
Gas capacity at high liquid level Mm3/d, MMSCF/d
Water capacity m3/d, BOPD
Inlet connection (type, dimension, etc.)
Gas outlet connection (type, dimension, etc.)
Oil outlet connection (type, dimension, etc.)
Water outlet connection (type, dimension, etc.)
Isokinetic sampling connection (type, dimension, etc.)
Weight kg, lbs
H2S; CO2, Acid service Yes, no
Relief system capacity
Surge tank
Type/model (vertical/horizontal)
Design code (ASME, DIN, BS, TBK)
Pressure rating Bar, psi
Surge tank, continuation
Maximum temperature rating C, F
Minimum temperature rating C, F
Volume m3, bbl
Gas capacity Mm3/d, MMSCF/d
Equipped for gas measurement Yes, no
Equipped for liquid rate measurement Yes, no
Inlet connection (type, dimension, etc.)
Gas outlet connection (type, dimension, etc.)
Oil outlet connection (type, dimension, etc.)
Drain outlet connection (type, dimension, etc.)
Weight - empty kg, lbs
Weight - high liquid level kg, lbs
H2S; CO2, Acid service Yes, no
Relief system capacity
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Annex B Rev. 1, January 1996
NORSOK standard 35 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.4 DATASHEET 3 SURFACE EQUIPMENTOperators min.
requirem.Vendors data
Transfer pump
Type/model
Prime mover
Output power kW, hp
Power requirement (current, AC/DC, voltage, frequency)
Capacity m3/hr, bbl/hr
Inlet connection (type, dimension, etc.)
Outlet connection (type, dimension, etc.)
Weight kg, lbs
H2S; CO2, Acid service Yes, no
Interconnecting piping safety system
Type of system to guard against over pressure
Burners
Number of heads/nozzles
Oil flow rate m3/d, BOPD
Gas inlet connection (type, dimension, etc.)
Oil inlet connection (type, dimension, etc.)
Water inlet connection (type, dimension, etc.)
Air inlet connection (type, dimension, etc.)
Air supply requirement m3/min, ft
3/min
Water supply requirement m3/hr, bbl/hr
Weight kg, lbs
H2S; CO2, Acid service Yes, no
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Annex B Rev. 1, January 1996
NORSOK standard 36 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.5
DATASHEET 4 RESERVOIR INFORMATION ACQUISITIONOperators min.
requirem.Vendors data
Recorder element
Sensor type
Pressure range Bar, psi
Temperature rating C, F
Memory capacity (sets of pressure, temperature, time)
Type of memory
Type of programming
Minimum sampling interval sec
Pressure sensor
Range Bar, psi
Accuracy % FS
Repeatability % FS
Resolution (at sampling interval) mbar, psi
Long term stability % FSResponse time sec
Temperature sensor
Type C, F
Accuracy C, F
Resolution C, F
Power supply/battery sectionType
Length mm, inch
Maximum OD mm, inch
Gauge carrier
Type/model
Pressure rating Bar, psi
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Well testing systems D-SR-007
Annex B Rev. 1, January 1996
NORSOK standard 37 of 38
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.5 DATASHEET 4 RESERVOIR INFORMATION ACQUISITIONOperators min.
requirem.Vendors data
Collapse pressure Bar, psi
Burst pressure Bar, psi
External diameter/OD mm, inch
Drift diameter mm, inch
Internal diameter/ID mm, inch
Rotating diameter mm, inch
Number of gauges
Top connection
Bottom connection
Sampling tool
Pressure rating Bar, psi
Temperature rating
External diameter mm, inch
Length mm, inch
Total sampler volume cc
Sampler activation mechanism
Delay (max./min)
Sampler chamber type
Shipping bottle volume
Shipping bottle maximum pressure capacity
Onsite sample transfer Yes, no
Heating bath and/or jacket included Yes, no
Transfer medium
Test tubing
Number of joints
Length of joints m, ft
Nominal outside diameter mm, inch
Wall thickness mm, inch
Weight per foot kg/m,lbs/ft
Steel grade
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Well testing systems D-SR-007
Annex B Rev. 1, January 1996
EQUIPMENT DATA SHEET
TITLE:
6.1.1.1.5 DATASHEET 4 RESERVOIR INFORMATION ACQUISITIONOperators min.
requirem.Vendors data
Coupling types
Drift diameter mm, inch
External collapse pressure Bar, psi
Internal burst pressure Bar, psi
Tube body yield strength KdaN, 1000 lbs
Joint strength KdaN, 1000 lbs
Bore size mm, inch
Environments (H2S, CO2, Acid, etc.)
Ovality %
Anti galling treatment
Make-up torque Nm, ft, lbs
Type of thread protector
Type of thread compound
External/internal protection
Marking
X-overs