Special

CAG-600 Computer Aided Goniometer

Features Core length: 2 to 12 inches (5.08 to 30.48 cm) standard, up to 4 feet with optional support stand

Core diameter: 2 to 6 inches (5.0 to 15.0 cm)

Resolution: < 0.5 degrees

Accuracy: 0.5 degrees

Specifications

Computer: Pentium processor required, SVGA graphics, 50 MB minimum hard drive space and have a 9 pin serial interface connector Approximate dimensions (inches): (Width x Depth x Height) 17 x 13 x 8 Options: Roller Support for long cores Computer and printer Specifications subject to change without notification.

The CAG -600, Computer Aided Goniometer, is an in-strument for digitizing and documenting planar or linear features in core samples such as bedding, fractures

and stylolites. The goniometer consists of the core digitizer, serial interface box and connection cable. Com-plete software is supplied with the goniometer for data collection and report analysis. The computer can be supplied by Coretest Systems, or provided by the customer. The digitizer consists of a base plate, two rubber rollers to place the core on, and several linear and rotary encoders which are used to monitor the position of a stylus arm. The stylus is placed on the planar feature at several points on the feature and the program auto-matically calculates the orientation relative to the scribe line. An optional roller support is used to support longer core samples. If the core sample is from a non -vertical or deviated well the dip and azimuth of the well can be entered as a function of depth. The program automatically corrects for the deviation on the collected data. Orientation and description data are stored in the main file called the well file. Data are collected in the segment level. For each segment the user characterizes the sample depth, orientation of feature, and de-

CORETEST SYSTEMS, INC. Setting a new standard in core analysis equipment PRODUCT OVERVIEW

CORETEST SYSTEMS, INC. 400 Woodview Ave Morgan Hill, CA 95037 USA Phone: (408) 778 -3771 Fax: (408) 779 -9418 E -mail: [email protected]

Web page: www.coretest.com

AERS-702 Ambient Electrical Properties System

Features Enables benchtop measurements of Formation Factor and Resistivity Index at ambient conditions.

System includes equipment for both rock and brine resistivity measurements

Calibrate well log data from measurement of Cementation Factor m and Saturation Exponent n

Standard cell offers 2 contact measurements.

Four terminal sleeve adapters are available for 1, 30mm and 1.5 diameter cores

Silver membranes insure good electrical contact for accurate measurements

BNC connectors easily adapt to DRM -98 Digital Resistivity Meter and most other resistance meters

Computer data acquisition system for automatic collection of resistance data

Plastic cover box included to prevent core drying out during a measurement

Pneumatic loading for accurate and repeatable resistance measurements

The 4 -terminal option enables resistance measurements at precisely spaced increments and is available for several core diameters.

Specifications

System Includes: Ambient Measurement Properties Cell (AEP -97), DRM -98 Digital Resistance Meter, 2 -4 terminal switch box with tem-perature indicator, brine resistance measurement dip cell and Excel spreadsheet templates for calculating parameters (Excel program is available as an option) Fluid Media Compatibility: All gases and liquids compatible with materials of construc-tion Standard Sample Sizes Accommodated: Plug size: 1.0, 30mm, 1.5 Length up to 3 inches Standard Pore Wetted Materials: Stainless steel, glass, silver, plastic Optional Accessories/Kits:

4 -Terminal Sleeve/Connector Kit ABRC -20 Ambient Brine Resistance Cell (flow

through type) Computer data acquisition system GCS -765 Gravimetric Capillary Pressure System for

desaturation of core plugs URC -628 or CENT -635 Centrifuge for sample de-

saturation Specifications subject to change without notification.

A suite of bench top devices that enable a user to measure ambient condition electri-cal properties of core plug samples. Properties that can be determined include For-mation Factor, Resistivity Index, and Saturation Exponent "n". With the addition of an overburden coreholder the Cementation Exponent "m" can also be determined at ambient temperature.




OEP-705 Overburden Electrical

Properties System

Features

Enables benchtop measurements of For-mation Factor and Resistivity Index at elevated overburden pressures

Calibrate well log data from measure-ment of Cementation Factor m and Saturation Exponent n

Standard cell offers 2 contact measure-ments. Four -terminal sleeves are avail-able upon request

Silver membranes insure good electrical contact for accurate measurements

BNC connectors easily adapt to DRM -98 and most other resistance meters

Includes a digital temperature measure-ment display

Computer data acquisition available

Specifications

Standard Confining and Pore Pressures: Plug size: up to 9,950 confining, 9,500 or 5000 pore pressure Standard Sample Diameters Accommodated: Plug size: 1.0, 1.5 (30mm available) Length range: 0.75 to 4 Includes: Core holder and support frame, DRM -98 Digital Resis-tance Meter, Confining pump and gauge Fluid Media Compatibility: All gases and liquids compatible with materials of con-struction Standard Pore Wetted Materials: 316 Stainless Steel / Viton / Silver Optional Pore Wetted Materials: Hastelloy and Titanium Optional Accessories/Kits:

4 -Terminal Sleeve/Connector Kit Capillary Pressure Desaturation option, includ-

ing bladder accumulator, precision pressure regulator and produced fluid cell

Computer data acquisition system Brine Resistivity measurement cells

Specifications subject to change without notification.

The OEP -705 includes a coreholder, fluid flow accumulator, confining pressure pump, and all necessary components to confine a core sample, flow brine for ionic equilibrium, and allow 2 and/or 4 -terminal connection to the core sample for electrical property measurements using an appropriate measurement device such as the DRM -98 LCR meter (not supplied). Capability for desaturation using gas or oil through a semi -permeable ceramic plate while in the coreholder is also included with the OEP -705 when the optional capillary pressure desaturation kit is ordered.




GCS-765 Gravimetric

Capillary Pressure System

Features

Determine the capillary pressure desaturation curve characteristics.

Enables determination of Height above free wa-ter zone

316 Stainless Steel and graphite composite wet-ted materials for corrosion free operation

Quick release opening for fast and easy sample insertion and removal.

Up to 5 cells can be run from a single control cabinet

Specifications

Power / Utilities: 110 or 220 VAC, 300 Watts, 50/60 Hz, specify Requires 100 psi air supply Requires 250 psi nitrogen supply Maximum Desaturation Pressure: 200 psi (air/brine system) Minimum Desaturation Pressure: 0.1 psi Sample Size / Capacity: Max. Height: 6 inches (15.2cm) Plate Surface Diameter: 12 inches (30.4cm) Wetted Materials: 316 Stainless Steel / Composite / Buna / Ceramic Approximate Footprint Dimensions: Control Rack: 20 x 30 x 60 inches Desaturation Chamber(s): Require 18 inch diameter area on a benchtop for each chamber purchased Specifications subject to change without notification.

This Gravimetric Capillary Pressure Measurement System offers a precision instrument for the desaturation of core sam-ples by the porous plate method up to 200 psi. The measured data can be utilized to calculate Capillary Pressure versus Saturation curves and tabular data, Height above free water zone, pore size distribution, and water cut versus height. The data can also be utilized to aid in the determination of wettability and relative permeability characteristics. A Micro-soft Excel computer spreadsheet template is included along with manual data sheets for data collection and calculation. The 200 psi chambers included with this system can hold up to 20 -one inch diameter samples at a time. The maximum sample height is 6 inches enabling desaturation of full diameter samples as well as plugs. A precision gravimetric weighing balance is required in order to make sample saturation determinations (Balance avail-able as an option). The system can be configured with from one to five desaturation chambers. Each chamber utilizes a dedicated rack mounted pressure selection module. Each pressure selection module utilizes 2 digital pressure transduc-ers (0 -15, 0 -250 psi) with accuracy's of 0.11%. Pressure transducers with 0.05% accuracy are available upon request. Gas humidifiers are included to insure minimum evaporation during the desaturation process. Multiple precision pressure regulators enable accurate pressure control down to 1/4 of an inch of water. (0.01 psi)

CORRELATION OF CONNATE WATER SATURATION vs PERMEABILITY & HEIGHT

1

10

100

0 10 20 30 40 50 60 70 80 90 100

Water Saturation, percent pore space

Perm

eabi

lity

, mi

llid

arci

es

4.5

9

13.5

18.1

22.6

27.1

Series7

Series8

Series9

Series10

Height, feet

Date:Test/Job I.D.:

2/2/93

Example2

CAPILLARY PRESSURE VS. BRINE SATURATION

0

5

10

15

20

25

30

35

40

0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0

Brine Saturation, percent pore space

Capi

llar

y Pr

essu

re, ps

i

1

2

3

4

5

6

7

8

9

10

DateTest/Job I.D.: 92112

2/2/92

Single Cell





ASPE-730 Automated System for

Pore Examination

Features

Uses ultra low rate controlled mercury injection

Measured data can be used to determine pore size geometry including pore throat radius and pore body radius as well a number of other parameters

Small compact system designed for maximum pre-cision and ease of use

ASPEDAS analysis software for calculation of pore throat and body diameters, subison and rison volumes, capillary pressure curves and residual/initial saturation curves as well as permeability and formation factor estimator

Integral chamber seal design for a small system volume with temperature control

Utilizes precision pressure transducers with 0.05% accuracy

Mercury injected volume is measured to

BPS-805 Benchtop Permeability System

Features Complete system for performing liquid permeability tests

Can be supplied with a variety of fluid delivery systems including a low cost HPLC type or pulsation free Quizix dual cylinder pumps

Easy to use CHG -106 hassler coreholder with simple overburden pressure control system

Dual differential pressure transducers with digital dis-plays and bypass valves

Can be supplied with optional piston or bladder accu-mulators

Computer control data acquisition system available as an option with easy to use data acquisition software

Corrosion resistant materials used throughout

Dome loaded BPR -2 back pressure regulator included

Digital Back Pressure regulator available as an option

Specifications Maximum Sleeve pressure: 9,500 psi Maximum pore pressure: 5,000 psi Maximum operating temperature: ambient -40C

(With coreholder mounted on frame) Core diameter:

1.5" standard, optionally 1.0" and 30mm Core length: 1" to 4" maximum Pore fluid wetted materials:

316 stainless steel, Viton, Teflon Confining Pressure System: pump with gauge, bleed

and isolate valves Standard Pumping System: HPLC single piston type:

0 -10 cc/min maximum 5000 psi Optional Pumping System: Pulsation free Quizix QX -

5000 pumping system 0.001 to 50 cc/min constant rate or pressure modes 5000 psi maximum pressure.

Options: Computer Control data acquisition system Piston or bladder accumulators DBPR -5 Digital Back Pressure regulator Available with Hastelloy wetted parts

High temperature oven Specifications subject to change without notice.

The BPS -805 is an integrated modular system for performing flow tests on core sam-ples to determine specific, effective, and relative permeability. The system can be con-figured to use liquids and gases at ambient temperatures. The standard plug size coreholder can be utilized to 10,000 psig confining pressure and up to 5,000 psig pore pressure with 1 inch and 1.5 inch diameter samples that are up to 4 inches long. Stan-dard material of construction is 316 stainless steel.




CORETEST SYSTEMS, INC. Setting a new standard in core analysis equipment

PRODUCT OVERVIEW

Features Automated state of the art system with advanced con-trol and data acquisition software

Unsteady state relative permeability capability

Enhanced oil recovery tests

Formation damage and remediation tests

Quizix Pulsation free pumping system

ACPC -195 for automatic confining pressure control

Precision Quartz pressure transducers with multiple pressure taps are available as an option

DBPR -5 Digital Back Pressure Regulator

SFS -032 Sonic Produced fluid separator

Inert construction throughout

Unique split oven design

Specifications Core Size: 1 or 1.5 diameter Length : 1 to 6 max (other lengths available) Coreholder Confining: Hydrostatic loading Maximum operation temperature : 1 50 C Maximum Confining Pressure: 9 900 psi Maximum Pore pressure : 9500 psi Pumping -Flow System: Quizix 5200 or QX -6000Constant

rate or constant pressure, forward or reverse flow capability air oper-ated valves

Injection rate: depends on pump selected 0 -15 or 0 -50 resolution 0.001 cc/min Piston Accumulators: 3 ea with low friction seals DBPR -5: Digital Back Pressure Regulator ACPC -195: Automated Confining Pressure Controller SFS -032 Sonic Fluid Separator: with 100 cc produced vol-

ume and

FDES-Series Formation Damage

Evaluation Systems

Features Complete system for performing reservoir condition formation damage and acidizing - remediation tests

Includes pulsation free pumping system with air operated valves and precision pressure transducers and data acquisi-tion instrumentation

Easy to use hassler coreholder with the capability for forward and reverse flow with air operated valves

Core mounted on movable tray to facilitate core replacement

Includes three fluid transfer vessels for use with corrosive fluids

Easy to use software with semi -automatic test sequence operation, as well as manual control of pumps and valves


Fraction collector and pH measurement Included or optional digital balance

The FDES series of system are used for performing a variety of core flood and fluid

flow tests including formation damage -remediation stimulation tests on core samples under elevated reservoir temperature and pressure condi-tions. The system can be used to test plug size core samples for virtu-ally any flow test including brine sensitivity, acid stimulation, return per-meability, critical velocity,liquid permeability and relative permeability. Mud flow recirculation options are also available.


Specifications Maximum Confining pressure : 9,500 psi Maximum pore pressure: 5,000 psi Maximum Operating temperature: 150 C Core diameter: 1.5 standard, optionally 1.0 and 30mm Core length: 1 to 4 maximum (longer as option) Pneumatic confining pressure controller Pulsation free pumping system standard 0.001 to 50 cc/min constant rate or pressure modes corrosion resistant construction Pore fluid wetted materials: Hastelloy, Viton, Teflon, 316 stainless steel 1 liter piston accumulators: std. Qty. = 3 Dual BPR -2 dome loaded back pressure regulators,

with fraction collector and pH sensor Options: Multiple pressure taps Mud or slurry flow options Pinch type BPR or Digital DBPR -5 Hastelloy B Hydrostatic or Biaxial loaded coreholder Multiple pumps for fluid incompatibility testing Specifications subject to change without notice.



AP-608 Automated Klinkenberg

Permeameter / Porosimeter

Features Permeability (Klinkenberg Corrected)

Permeability (air equivalent permeability @ specified mean pressure)

Slip factor "b"

Inertial Coefficients (Beta and Alpha)

Pore volume of core sample

Porosity (if bulk volume is known)

Specifications

Permeability Range: 0.001 mD to >10 Darcies

Porosity Range: 0.01 to >40 percent Core sample Size:

Length: 0.75 to 4.0 inch Diameter: standard 1.0 inch or 1.5 inch Optional: 30 mm diameter

Overburden Pressure: 300 to 9,950 psi Gas System Requirements: Dry helium at greater than 250 psi input pressure Dry air pressure between 90 and 125 psi Electrical Requirements: 110/120 VAC, 15 amps, 60 Hz or 220/240 VAC, 10 amps, 50 Hz Options Available: Digital calipers interfaced into control computer Grain volume chambers Digital balance interfaced in computer Specifications subject to change without notice.

The AP-608 Automated "Klinkenberg" Permeameter-Porosimeter is a cost effective advanced system for per-forming automated permeability and porosity tests at overburden pressures to 9950 psi over a wide perme-ability range. The AP-608 uses a pressure decay technique to determine Klinkenberg corrected permeabili-ties, slip and turbulence correction factors. Porosity is determined using a Boyles law technique. The unique design of the AP-608 hydrostatic coreholder not only enables quick sample loading and unloading, but also offers quick diameter changes in less than 5 minutes for the production oriented laboratories. It is now stan-dard with a hydrostatic loading feature. Simply load the core in the core-holder, enter the test and core data into the included control computer, and the AP-608 automated control system does the rest. Microsoft Win-dows compatible software, and other advanced features make the AP-608 the best core analysis system in the world. Note: Coretest Systems makes no warranties or representations when measuring very low permeabilities (

MIS-Series Mercury Injection Systems

Features

Measured data can be used to calculate pore size distri-bution and capillary pressure characteristics.

Injection pressures to 15,000 psi define pore entry radius to below 0.01 microns.

System includes spreadsheet software for calculation of pore size distribution and conversion of pressures to air/water, air/oil, and oil/water systems.

Software includes tabular and graphical printout capabili-ties for injected volume, pressure, pore entry radius, and system pressure conversions.

Integral chamber seal design for a small system volume.

Available in a one or three sample version

Utilizes precision pressure transducers with 0.01% accu-racy.

Mercury injected volume is measured to 0.01 cc resolution

Computerized data acquisition and control capabilities that minimize operator error.

Specifications

Power / Utilities: 110 or 220 VAC, 700 Watts, 50/60 Hz, specify Requires 100 psi air supply

Maximum Injection Pressure: 15000 psi Minimum Pore Entry Radius: 0.01 micron Sample Size / Capacity:

Max. Height: 2 inches (5.08 cm) Max. Diameter: 1.5 inches (3.81 cm)

Wetted Materials: 316 Stainless Steel / Teflon / Viton Approximate Footprint Dimensions:

Computer Controller: 24 x 24 x 36 inches System: 40 x 36 x 60 inches

Specifications subject to change without notice.

The MIS Series of mercury injection systems are designed for injection pressures to 15,000 psi which enable pore entry radius measurements to below 0.01 microns. The systems include software that calculates pore entry radius, converts pressure data to equivalent air/brine, air/oil, and oil/brine systems, and displays the data in tabular and graphical formats that can be used to correlate the mercury injected data to reservoir capillary pressure characteristics. The measured data is presented in cumulative and incremental tabular from with graphical representations of mercury saturation versus pressure, equivalent system saturation versus pressure, and pore size distribution versus percent pore space in cumula-tive and incremental (Histogram) formats. A J -Function calculation for correlation of capillary pressure data across sev-eral systems is also available.

A sample is placed into the measuring chamber and a vacuum is imposed upon the system. The mercury level is then brought up until the sample is covered. The chamber pressure is raised in an incremental fashion, injecting mercury into the sample. This volumetric data is corrected for system variations to obtain injected volumes. Data is measured from vacuum through the threshold pressure of the sample and on to 15,000 psi. Retraction curve can also be performed with the MIS. Another feature of the MIS -Series is the easy opening chamber cap that offers repeatable, user friendly sample loading and unloading. The coreholders are located in a temperature controlled ventilated chamber for minimizing opera-tor exposure to mercury vapors.




C A P I L L A R Y P R E S S U R E V S .

W E T T I N G P H A S E S A T U R A T I O N( M E R C U R Y I N J E C T I O N D A T A )

0

1 0 0 0

2 0 0 0

3 0 0 0

4 0 0 0

5 0 0 0

6 0 0 0

7 0 0 0

8 0 0 0

9 0 0 0

1 0 0 0 0

1 1 0 0 0

1 2 0 0 0

1 3 0 0 0

1 4 0 0 0

1 5 0 0 0

1 6 0 0 0

0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0

W e t t i n g P h a s e S a t u r a t i o n , p e r c e n t p o r e s p a c e

Capillary Pressure, psia

C o r e I D :

D a t e T e s t e d :

P e r m e a b i l i t y , m i l l i d a r c i e s :

P o r o s i t y , f r a c t i o n :

t i g h t s a n d s t o n e

8 / 2 / 9 8

0 . 1 1 0

C O R E T E S T S Y S T E M S , I N C .

1 . 2 0 m d

W e l l I D : T i g h t O n e

This graph shows data collected with theMIS-621 on a tight sandstone sample. TheSystem can perform drainage and imbibitiontests. Once the tests are complete the datacan be analyzed using a Microsoft excelmacro that automatically corrects for cellconformance, calculates pore size distribu-tion and other key parameters. Data is theformatted for easy printout in graphical ortabular files.

This figure shows the main softwarecontrol panel for MIS-621. The user isupdated through the status box in thelower part of the screen on every op-eration the system performing duringa test . A graphical display shows themercury injection pressure Vs coresaturation for each sample. Userprompts make sample loading andtest operation simple and repeatable.

This photo shows the insider ofthe MIS-621. All components areeasily accessable for rapid main-tenence and repair. Ventelationand drip trays help prevent userexposure to mercury and makeclean up a snap.

RCS-760 Reservoir Condition

Capillary Pressure System

Features Offers accurate determination of capillary pressure curves at reservoir conditions The system can operate in both incremental and con-tinuous injection modes Both brine and core resistance including determination of "m", "n", resistivity index and formation factor Oil and water wet membranes standard for forced and spontaneous drainage and imbibition procedures High temperature pumps for precise volume measure-ment and pressure control Inert construction throughout Unique split oven design Automatic operation and data collection software Display -Calculation software included

Specifications

Core Size: 1.5" diameter (optional 1.0", 30mm)

Length: 1" to 4" maximum

Maximum operation temperature: 150 C

Maximum Confining Pressure: 9500 psi

Maximum Pore pressure: 6000 psi

Maximum differential pressure: +200/ -40

Injection rate: 0.1cc/day to 2 cc/min

Maximum displaced volume: 20 cc

Approximate dimensions: 48" x 60" x 72"

Power supply: 110 or 220 VAC 50 or 60 Hz

Options: Second coreholder option Computer -controlled confining pressure system

Inserts for 1.0 and 30 mm diameter samples Specifications subject to change without notice .

The RCS -760 is a computer controlled advanced system for performing capillary pressure and optionally electrical property measur e-ments at reservoir conditions using refined or live fluids. All key functions are automated, including pump and valve control, a nd data acquisition. Special oil and water -wet semi -permeable membranes allow for both forced drainage and imbibition processes. High te m-perature pump cylinders are used to accurately control pore and differential pressures. The differential pressure pump is mounte d in the oven to eliminate temperature corrections. Formation factor, cementation exponent, resistivity index, saturation exponent, a nd brine resistivity can be measured with the resistivity measurement/flow options. Included with this option is the DRM -98 Digital Resis-tance Meter. The system can measure 2 and 4 terminal resistances. All brine wetted parts are manufactured from Hastelloy, ce-ramic, PEEK and Silver. All components in the oil filled sections are manufactured from stainless steel. The fluid pumps, coreho lder, valve, reservoirs and necessary plumbing are mounted in Coretest Systems unique split oven design providing easy access to all components during setup. Standard confining pressure is controlled using a manually set pneumatic system (a computer -controlled system is available as an option). All test operation is controlled through sophisticated control software using the Windows pl atform. The control software allows for operation both manual and automatic modes where the user has control over valves, pumps, data lo g-ging and other data acquisition. Other features include alarms and calibration windows.




PRCS-763 Production Capillary

Pressure System

Features Offers accurate determination of capillary pressure curves and electrical measurements at reservoir condi-tions The system can measure up to 3 cores simultaneously Oil and water wet membranes standard for spontane-ous and forced procedures High temperature fluid measurement cells for precise saturation measurement Inert construction throughout Unique split oven design Automatic operation and data collection software

One coreholder shown

Specifications

Core Size: 1.5" diameter (optionally 1.0" and 30mm Length: 1" to 4" maximum Number of Coreholders: 3 Maximum operation temperature: 150 C Maximum Confining Pressure: 9500 psi Maximum Pore pressure: 5000 psi Maximum differential pressure: 200 psi (two trans-ducers for each coreholder)

Maximum displaced volume: 20 cc Volume resolution:

Features Modular design enables several test configurations from same base system, offering future expansion/upgrade possibilities without having to purchase another complete system. Can be configured for Liquid/Liquid or Gas/Liquid relative permeability measurements as an Unsteady -state or Steady -state procedure. Complete computerized control and data acquisition or manual control options. Available in high -end research grade configurations, production oriented configurations, or economical models. X -ray scanners are available as option for in -situ satura-tion monitoring. Relative Permeability Data analysis software (basic and advanced) are also available along with training

Specifications Max. Pore Pressure: depends on pumps and transducers standard 5000 psi option to 9500 psi Max. Confining Pressure: 9950 psi Max. Temperature: 150 o C Flow Rate Range: recirculating Continuous: 0.001 - 15 cc/min(SP -5200) once though type (QX -6000) 0.001 to 50 cc/min Pump Modes: (with std. Quizix pumps) Constant Rate Constant Pressure Constant Differential Pressure Available Relative Permeability Capabilities: Unsteady State: Liquid/Liquid (standard) Gas/Liquid (optional) Steady State: Liquid/Liquid (optional) Gas/Liquid (optional) Saturation Determination Methods Available: Volumetric via Acoustic Separator (standard) Volumetric via Capacitive Separator (optional) In -situ via X -ray attenuation (optional) Data Calculation / Report Generation software available


The RPS -Series systems offer a modular design that enables several configurations for performing relative permeability tests without having to buy several com-plete systems. The standard Coretest Systems, Inc. roll -on oven design offers the most user friendly system on the market for maximum efficiency during

test setup and cleanup procedures. The use of uncontaminated reservoir fluids and elevated temperature/pressure insures accurate results for reservoir performance calculations. Advanced control software controls all aspects of the system, either in manual mode where the syringe pumps can be positioned, valves opened or closed or in fully automatic mode where all aspects of a standard test are computer controlled through a test sequencer . Optional extended length hydrostatic type core holder for use with composite cores up to three feet in length. Manually operated fill/isolate valves allow for easy filling of the system with fluids, even under pressure conditions. The steady -state system offers Quizix five cylinder recirculating pumping systems enabling closed system, low volume, continous pulsation free flow with unmatched precision. Optional capillary pressure and electrical property measurement configuration is also available as well as Gas/Liquid Relative Permeability capability . Single and dual energy X -ray scanners and transparent coreholder are also available as options.

CORETEST SYSTEMS, INC. 400 Woodview Ave Morgan Hill, CA 95037 USA Phone: (408) 778-3771 Fax: (408) 779-9418 E-mail: [email protected]



RPS-Series Relative Permeability

Systems

URC-628 Ultra Rock Core Centrifuge

Features Extended rotational speed for greater equivalent dis-placement pressure of approximately 1250 psi (dependant on fluids used) Rapid determination of capillary pressure characteristics on plug size core samples Enables rapid sample preparation to restored state con-ditions to meet demanding production schedules Viewing window and digital stroboscope offer simple sample selection and accurate volumetric determina-tions Programmable rates, spin duration, & temperature con-trols to 40 C Imbibition and drainage rotors and sample chambers for 1" and 30mm and 1.5" diameter samples

The URC -628 Ultra -Rock Centrifuge is a state of the art rock core centrifuge. The URC -628 can be used to perform dynamic capillary pressure measurements as well as sample prepa-ration by displacing to connate water or residual oil saturations. The URC -628 allows for rapid determination of capillary pressure (drainage and imbibition depending on the rotor and sam-ple cup holder used) characteristics on core samples at very high rotational speeds and equivalent displacement pressures of up to approximately 1250 psi (dependant on fluids

used). The URC -628 can also be utilized for rapid sample preparation to restored state conditions for subsequent testing in vari ous test equipment. Rotor and sample chambers offer the ability to spin 1.0" diameter core plug samples at rotational speeds up to 2 0,000 RPM and 1.5" diameter core plug samples up to 16500 RPM. The URC -628 comes standard with a 50 or 60 Hz (specify when ordering) 220 VAC system including a view port window and digital strobe system as well as an integrated vacuum pump. The rotors, core sample chambers for drainage and imbibition studies, collection tubes and other accessories are quoted separately.

A digital speed control with the ability to program multiple speeds at specified intervals and a pre-cision temperature control system (0 -40C) is included. Programmable ramps and holds, rotor imbalance shutoff and a host of other advanced features are standard on the URC -628 control panel. The URC -628 is equipped with a digital strobe that allows the user to monitor fluid levels in each of the cells sequentially.

The URC -628 can also be supplied with an automated measurement option that allows the user to perform automatic data collection (measurement volume at selected speeds for each cell) and processing using windows based PC and special hardware and data acquisition software. This also allows the system to be used for performing relative permeability measurements. The auto-mated data collection option is also available for older L8 -60MP centrifuges. Consult Coretest for more information.

Optional computerized data acquisition system for automatic collection of test data and control of cen-trifuge system System can be used for drainage and imbibition modes using the proper rotor sample chamber com-bination for both air/liquid and oil/brine Uses traditional PIR type rotors (16.5 and 20) and sample chamber combinations (displacement by water and displacement by oil/air) Extended warranties and service contracts are available as an option

CORETEST SYSTEMS, INC. 400 Woodview Ave Morgan Hill, CA 95037 USA Phone: (408) 778-3771 Fax: (408) 779-9418 E-mail: [email protected]



URC -628 Ultra Rock Centrifuge

Specifications Basic centrifuge :

Speed control 20 rpm of set speed Sample imbalance tolerance Up to 10% of volume in opposite tubes Drive cooling Air -cooled Refrigeration system Thermoelectric Set temperature range 0 to 40 C in 1 increments Temperature control 0.5 C of set Ambient operating range 15 to 40 C User -settable programs 9 user programs, with delayed start capability Acceleration/Deceleration rates 10 Accel/11 Decel Moisture -purging vacuum system Heat output 1.0 kW/h (3,400 BTU/h) Sound level 3 ft (0.9 m) away 57 dBa Dimensions H x W x D in 47.5 x 37 x 26.5 (mm) (1,207 x 940 x 673) Weight 1,025 lb (465 kg) 220 VAC 50 or 60 hz specify when ordering

Rock Core Special Features:

View port door (locking) Integrated Strobe and control system Vacuum capability to below 10 microns Special heat sink integrated into system

Sample chamber and rotor specifications

PIR -16.5 regular and inverted rotors and sample chambers for 30 mm and 1.5" diameter samples up to 2" long PIR -20 regular and inverted rotors and sample chambers for 1" diameter samples Extra sample chambers Fluid collection tubes from 6 to 23 cc for PIR - 16.5 rotors and 1 - 4 cc for PIR -20 rotors Holding racks and spare parts (seals etc) also available

Optional Automated data acquisition for URC -628 Ultra Rock Centrifuge.

Includes computer interfaced digital camera with strobe, computer and control software. The system can make measurements at user specified intervals. Data presentation software for displaying capillary pres-sure curves is also included. Advanced data analysis software for determining relative permeability curves is available as an option. Contact Coretest Systems for more details. Resolution is better than

www.coretest .com

A New Generation of Ultra High Speed Rock Core Centrifuges

The URC-628 is the newest generation of ultra high speed rock core centrifuges available to the

core analysis laboratory for rapid determination of capillary pressure curves and for sample

preparation. With the addition of an optional automation and data analysis package, the URC-628

can also be used to determine relative permeability curves for the displaced phases in both the

drainage and imbibition modes. The advanced automation package also speeds up the test

procedure with automated equilibrium determination and subsequent automatic progression to the

next step.

The URC-628 has a number of features not

available in previous high speed rock core

centrifuges, and is compatible with existing Rock

Core Centrifuge rotors, buckets and sample

accessories. For example, a standard or inverted

PIR 16.5 and PIR 20 rotor can be used in the

URC-628. Coretest Systems, Inc. is a

manufacturer and supplier of these rotors and

accessories.

A Complete Solution for Laboratory Analysis

The URC-628 is a critical tool for the modern special core analysis laboratory. It provides the user

with an ideal technology to prepare samples for other tests and determine capillary pressure

curves. Features found on the URC-628 make operation simpler than ever before possible. The

addition of an optional data acquisition and analysis package provide a powerful system for

advanced testing and analysis. New overburden rotors and sample chambers allow for testing

under realistic reservoir stress conditions.

Rotor design, manufacture and safety considerations

Coretest Systems, Inc. is a Beckman-Coulter, Inc. Channel Partner. We design and manufacture

these rotors to strict tolerances and test them at high speed. Weight in each sample chamber is strictly

controlled during the machining process.

Standard and Inverted rotor/sample chamber assemblies and supplies for performing capillary

displacements as well as relative permeability tests, are available directly from Coretest Systems, Inc.

When ordering a rotor, it can be fit with both standard and inverted sample chambers. If a set of sample

chambers is ordered at a later date the rotor must be returned to Coretest to have it fitted to the rotor

being used or a new rotor should be ordered.

Typically 3 or 6 cells are used in each rotor and the rotor can accommodate both standard and

inverted type sample chambers.

The lifetime of a rotor assembly is determined by the amount of time it is used at defined speeds and

temperatures. Rotors and sample chambers will not last indefinitely and should be replaced when their

usable service life is up.

Rotor and Sample Chamber Assemblies

The URC-628 is the latest generation of centrifuge available AND is compatible with previous rock core

ultracentrifuge rotors, buckets, and sample accessories. Both the PIR-16.5 and PIR-20 can be used

in the URC-628.

Maximum rotational speeds are dictated by the rotor and the temperature of the test. An overspeed

disk attached to the rotors insures safe operation by limiting the maximum rotational speed.

Rotational speeds to 20,000 RPM are possible with the 1.0 6 place rotors.

New rotor and sample chambers include:

The PIRS-120 rotor for displacements by air/oil for six core 1.0 inch diameter by up to 1.0 inches in length.

The PIRI-121 rotor for displacements by water for six cores 1.0 inch diameter by up to 1.0 inches in length.

The PIRS-122 rotor for displacements by air/oil for three cores 1.5 inch diameter by up to 2.0 inches in

length.

The PIRI-123 rotor for displacements by water for three cores 1.5 inch diameter by up to 2.0 inches in length.

The New PIRO-124,125 Overburden pressure rotor/sample chamber is now available. This new rotor

design will enable the application of a constant confining pressure during rotation.

www.coretest .com

Basic History and Theoryof the Centrifuge in Core Analysis

The centrifugation of rock core samples for the purposes of

liquid saturation preparation and the study of capillary

pressure desaturation curves has been in use since the mid

1940's. The basic use of capillary pressure data is to aid the

petroleum engineer in determining the height of the oil-water

contact in a reservoir. A stable oil-water transition zone

develops in a reservoir over geologic time primarily as a result

of pore geometry, the different liquid densities, interfacial

tensions that exist between the liquids and rock material, and

the force of gravity. The force of gravity is very small and

therefore is the primary reason this transition zone forms very

slowly over geologic time. The use of a centrifuge basically

produces the same type of force on the liquids as does gravity

in nature, but since the force is several thousand times greater

than gravity, the time it takes to move the liquids in the core is

dramatically reduced. In comparison to the popular (yet very

slow) porous plate desaturation technique, the URC-628 is

much faster, and also extends the definition of the standard

gas/water capillary pressure curve from about 200 psi

(maximum for most porous plate) to almost 1300 psi across a

core sample.

As technology has developed, so has the accuracy and

versatility of the centrifuge. The URC-628 is today's state-of-

the-art centrifuge, offering better accuracy, programmability,

and optional computerized data acquisition for automated

relative permeability, as well as capillary pressure procedures.

The standard URC-628 also allows for elevated temperature

operation to 110 C.

Exploded view of a PIRS-120 standard sample

chamber.

NEW! Confining Pressure Rotorand sample chambers

This is a unique system for running rock core centrifuge tests on core samples under realistic overburden

pressures. This new design (patent applied for) recreates a stress environment using a reusable unique cell

holder that is easy to use and reliable. These cells are perfect for use with samples that exhibit strong pore

size stress dependence or unconsolidated samples. The 1.5" cells are capable of operating at overburden

pressures to 4000 psi. The overburden rotors are available with interchangable sample cups for running air/oil

and water displacement tests. The 1.0" confining pressure inserts can operate at overburden pressure in

excess of 5000 psi. The 1" sample chambers can be used in existing PIR-16.5 or Coretest new PIR-122/123

rotors sample cups. The confining system requires a special sample loading apparatus in order to apply the

overburden pressure and must be purchased with the cells. Pore fluids contact only Viton, PEEK,

Polyethersulfone, and Titanium.

Automated Data Acquisition and Control System (optional)

Coretest Systems, Inc. has integrated into the URC-628 a state-of-the-art data acquisition and control

package which includes: Automation of the centrifuge process using a PC-based computer acquisition system A continuous light source enabling the collection of as many as 19,000 images per second A CCD line scan camera allows measurement of the production data at least 25 times more sensitive than manual measurements Laser sensors to determine the speed of the rotor to within 1 rpm and updates the speed on every revolution Controls speeds from 100 to 20,000 rpm Enables automated incremental centrifuge rotation speed changes up to 16 times per experiment for up to one week per speed

Collects and stores image data for all buckets on a single rotation Two and Three phase data acquired Stores time, temperature, and rpm with each image file Corrects image collection at each rpm for electronic time delay Automatically resumes data collection and restarts centrifuge after power interruption Provides adjustment of imaging system while collecting data

Analyzes collected images into tabular ASCII data files of fluid production vs. time and speed

Convenient help menu to assist in experimental setup

Centrifuge Data Analysis Package From Westport Technology Center Intl. sold exclusively through Coretest Systems, Inc.

This is an advanced centrifuge data analysis software

package that works in conjunction with the optional data

acquisition and control system.

Converts the measured production data into capillary

pressure and relative permeability curves

Prior to a centrifuge test the operator can perform

experiment simulations to best select the speeds and

collection modes

A comprehensive data reduction program fits the

production data to various models to achieve the best fit of production to produce capillary pressure or

relative permeability curves for the sample

The data reduction program also has the capability to do bi-modal modeling for isolation of matrix

permeability or volume from fractures to provide better estimates of permeability and porosity ratios

Leverett J function dimensionless values are provided for comparison with mercury capillary pressure

curves and for better comparison between reservoir cores of varying absolute permeability

The system can be used to provide wettability values from Amott, USBM, and Oil saturation vs. Bond

Number (Abrams) relationships, with values that are orders of magnitude better than with flow techniques

www.coretest .com

Basic URC-628 Centrifuge Features

Speed control +/- 20 rpm of set speed Drive cooling Air-cooled Vacuum capability to below 10 microns (2 stage mechanical pump and diffusion pump) User-settable programs 9 user programs, with delayed start capability Acceleration/Deceleration rates 10 Accel/11 Decel Moisture-purging vacuum system Sound level 3 feet (0.9 meters) away 57 dBa Dimensions HxWxD inches: 47.5 x 37 x 36 Weight: 1,150 lbs.

Strobe

Fiber optic Xenon strobe with backlight Auto/manual operation modes Microprocessor controlled strobe delay Delay set cw/ccw set Sample selector switch (positions from 1 to 6) Automatic/manual intensity control Range up to 400 flashes per second

Rotor Chamber Temperature

Temperature control +/- 0.5 C Ambient operating range 15 C to 30 C Infrared temperature sensor with digital readout with 0.1 C resolution Digital Temperature controller Rotor chamber temperature range from ambient to 110 C Over temperature protection

Standard Rotors available

PIRS-120 - Displacement by air/oil, 6 ea. 1.0" (or 30 mm) diameter by up to 1.0" long core, max. 20,000 rpm (identical to PIR-20) PIRI-121 - Displacement by water, 6 ea. 1.0" (or 30 mm) diameter by up to 1.0" long core, max. 20,000 rpm PIRS-122 - Displacement by air/oil, 3 ea. 1.5" diameter by up to 2.0" long core, max. 20,000 rpm (identical to PIR-16.5) PIRI-123 - Displacement by water, 3 ea. 1.5" diameter by up to 2.0" long core, max. 20,000 rpm PIRO-124 - Overburden rotor and sample chambers for air/oil and water PIRO-125 - Overburden inserts for 1.0" diameter samples that fit into existing PIR 16.5 rotors

Volumetric Receiving Tubes

For PIRS-122 & PIRI-123 rotors/buckets: (polyethersulfone, polyphenylsulfone) 6 ml, 12 ml, 23 ml For PIRS-120 & PIRI-121 rotors/buckets: polyethersulfone, 1 ml, 2 ml, 3 ml, 4 ml For PIRO 6,12, and 23 ml tubes available, other sizes available as options

Additional accessories O-rings, rubber cushions, over speed disks, lubricants, rotor and cell holders, support cones, strobes and windows, tools and accessories, overburden loading system

Data acquisition System PC-based system with computer, monitor, printer, high resolution line scan camera, camera mounting brackets, data image capture board, dual continuous lighting system and laser sensors with all connecting cables and accessories

Analysis software Available as an option (capillary pressure and relative permeability)

CORETEST SYSTEMS, INC.23 Las Colinas Lane, #104San Jose, CA 95119 USAPhone: 408-229-8185 Fax: 408-229-8188Email: [email protected]

S pecifications Core Size: 1.5 diameter (optionally 1.0,30mm) Length : 2 to 12 maximum (12 core size) 12 -24 with 24 co re size option 24 -36 with 3 ft core size option Maximum operating temperatur e: 150 C Maximum Confining Pressure: 9950 psi Maximum Pore pressur e: 7500 psi Maximum displaced volume : >100 cc Separator Volume resolutio n:

PBC-925 Pore and Bulk Volume

Compressibility Systems

Features Easy to use biaxial coreholder with the ca-pability for axial and radial strain measure-ments (optional)

Core mounted in heat shrink tubing to mini-mize conformance corrections

Pore fluid components are mounted inside oven to minimize volume corrections and temperature drift

Easy to use software with complete calibra-tion sequence and automatic test sequence operation, as well as manual control of pumps and valves

Corrosion resistant materials used through-out

Uses Coretest Systems unique Split oven for easy access to all components

Specifications

Maximum Axial and Sleeve pressure: 10,000 psi Maximum pore pressure: 9,750 psi Maximum Operating temperature: 150 C Core diameter: 1.5" standard, and 30mm Core length: 1" to 4" maximum Axial and Sleeve pressure pumps

Stroke volume 100 cc Resolution

CORETEST SYSTEMS, INC. Setting a new standard in core analysis equipment

PRODUCT OVERVIEW

RPAS Relative Permeability Analysis Software

CORETEST SYSTEMS, INC. 23 Las Colinas Blvd. #104 San Jose, CA 95119 USA Phone: (408)229 -8185 Fax: (408)229 - 8188 E -mail: [email protected]

DATA IMPORT FEATURES: The data import window allows the user to import data into the systems and then delete and/or edit the data as required. Locations and headings for data columns can be selected and the data cor-rected for offsets. The user can also deter-mined breakthrough and trim data sets when necessary. Edited data can be saved in ASCII tab delimited files with new file names. The graph window is configurable, and will allow the user to display a variety of parameters. Tabular data is also displayed in the window for editing and selecting.

FORMULA EDITOR AND CURVE FIT CA-PABILITIES: Once data is introduced from the import screen, the data can be fitted and filtered using fixed polynomial or other curve fit relationships or fitting to non -linear relation-ships using the powerful Lev -Mar curve fitting system that will allow the user to fit to a cus-tom user defined equation. Once entered, the system will fit and if selected, will run a auto-matic optimization routine that can provide a simpler less hands on approach to generating a relative permeability curve

FINAL REPORT FEATURES: At the comple-tion the curve fitting, the user can display rela-tive permeability vs. saturation curves, as well as a number of different plots on the configur-able display window. Tabular final results can be imported into Ex-cel for creating a printed version. (Excel TM not included) Requirements: Pentium with minimum of 128 MB ram 1 mb of disk space for program Runs under Windows TM NT, 2000, XP Demo version available e -mail to [email protected]

FSDS-649 Mud Flow and Formation Damage

Stimulation System

Features Complete system for performing reservoir condition fluid flow, remediation and cleanup studies.

High accuracy quartz pressure transducers for monitoring differential pressure at upstream and downstream position on the core as well as at 2 midstream points

Mud loop recirculation system for performing recirculating mud and treatment fluid flow tests

Multifunction coreholder equipped with two replaceable heads for parallel and 45 o flow.

Recirculating pump magnetic drive type with HP motor drive and 316 Stainless Steel parts

Easy to use software with semi -automatic test sequence operation, as well as manual control of pumps and valves


Specifications Maximum Confining pressure : 6,000 psi Maximum pore pressure: 3,500 psi Maximum Operating temperature: 150 o C Core diameter: 1.5 standard, Core length: 1 to 4 maximum Confining pressure control: automatic Pulsation free pumping system standard 0.001 to 50 cc/min Mud flow rate: 0.03 to 11 gal/min Mud reservoirs : 2 -liter, 3 ea. Pore fluid wetted materials: Hastelloy, Viton, Teflon, 316 stainless steel 2 -liter piston accumulators: std. qty. = 1, opt. 2 or 3 Back pressure control: digital DBPR -5 regulator Produced fluid measurement: digital balance Pressure measurement: 4 ea. quartz transducers Options : - high flow dual -cylinder pumps (400 cc/min) - gas flow system - Differential pressure tap transducers


The FSDS -649 is used for performing fluid flow and mud

flow tests as well as remediation and cleanup studies on core samples under elevated reservoir temperature and pressure conditions. The system includes a Mud Loop for performing recirculating mud and treatment fluid flow tests. The special coreholder is equipped with two replaceable heads which allow for flow parallel to the core face, or at a 45 o angle into the face.




Return to DirectoryCAG-600 Computer Aided GoniometerAP-608 Automated manually loaded PermeameterMIS-621 Mercury Injection SystemURC-628 Ultra-Rock CentrifugeFDES-645 Formation Damage Evaluation SystemAERS-702 Ambient Electrical Properties SystemOEP-705 Overburden Electrical PropertiesASPE-730 Automated System for Pore ExaminationGCS-765 Gravimetric Capillary Pressure SystemRCS-760 Reservoir Condition Capillary PressurePRCS-763 Multisample Capillary Pressure Electrical Property SystemBPS-805 Bench top Liquid PermeabilityCFS-830 Core Flood SystemPBC-925 Pore and Bulk Compressibility SystemRPS Series Relative Permeability SystemsFSDS-649

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