In Well Barrier Integrity Testing and Documentation

11th April 2019

Presented by : Arild Stein

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Who are we?

Across 18 loca6ons globally

400+ employees across the

globe

Headquartered in Stavanger, Norway

Trondheim facility – Engineering and

technology exper6se, ISO test facility, Large

stock of tools

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•  Product design & testing done after ISO 14310 V / API 11 D1

•  Manufacture and Support Service Org. audited after a Quality System ISO 9001 or equivalent

•  Delivered goods is tested in well with a Pressure test 5 + 15 min. Norsok D-010

Background General Industry Barrier Requirements Today

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Electronic Setting Tool (EST)

Product Benefits •  Shortest electronic

seNng tool on the market

•  Non-explosive •  Field reseQable •  Bluetooth connec6vity •  Data log to confirm

correct seNng •  Real 6me capabili6es

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EST - Installation Verification Signature

EST Installa4on Profile of 325-450 ME Bridge Plug •  1– Shear Screws indica6on

•  2 - Slips Engage in Tubing wall.

(4 ½” 12.6 # Tubing)

•  3 – Element compressing against tubing wall

•  4 – Final load prior to shear off

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Barrier Installation Verification - Base Line Signature

Load

Bar

a

Load

Lbf

Tool Travel mm

66 click

38 click

53 click

Collected EST profiles •  All API standard Pipe. (4 ½” 12.6 # Tubing)

•  Installed over 4 decades 1970-2000

•  3 different countries on the North Sea

•  Now with over 3500 intalla6on profiles

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Case Study: Use of installation measurement

A Customer in the Norwegian CS needed to secure a well with a dual Deep set barrier.

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Installation Verification Comparison, Plug I & II

Secondary Pack off

Shear off

Mandrel Travel

Bottom Plug Green Upper Plug Red

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Barrier Verification System (BVS)

Product Benefits •  Records pressure and

temperature across an installed barrier

•  Provides documentable verifica6on of a barrier

•  Memory or E-line read out versions available

•  Wireless reading of data •  Allows verifica6on of two

barriers installed in close proximity

The BVS has been designed to verify a barrier afer seNng. The BVS consists of two parts; a transmiQer placed below the barrier, and a receiver mounted above the EST. Verifica6on is achieved by recording the pressure and temperature readings across the installed barrier whilst pressure tes6ng is taking place.

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Barrier Verification System, Typical Application

•  350-700 HEX Plug set and tested in 7” liner.

•  Run in hole with 420-550 ME fitted with BVS and set in 5 ½” Tubing.

•  Due to small volume between barriers, upper plug integrity unable to be confirmed via pressure test

•  Pressure test upper plug with EST setting tool position above

•  BVS transmitter wirelessly sends pressure and temperature readings to receiver located in EST.

•  Providing documented confirmation of Well Barrier Integrity

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Pressure Verification, Test Plot

Time Savings •  Major UK operator 11 well

campaign 2016 •  Experience from previous

campaign where gas bleed off meant 6mely verifica6on

•  Reduced average 6me from 10 hours to 45 mins

•  Future later life barrier verifica6on possible

Applied pressure

Applied Pressure above barrier

RIH

Received pressure and temperature Pulling

out of hole

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Regulators Expectations Norsok D010

Barrier Requirements for any well •  Barrier condition needs to be known

and understood. •  Robust barriers are required to fulfill

regulator requirement.

•  More reliable verification of barriers is needed, especially when plugging & abandoning a well.

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Next Stage Verification of a Mechanical Barrier

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Improvement for the operator on Well Verification

•  Verification of a barrier & well integrity with a higher degree of confidence.

•  Reduces tensile stress from pressure testing

from surface, especially in «weak» well constructions.

•  More time efficient, less testing volume and

temperature effects. •  Online and real-time data from the well is

available instantly for use as a basis in decision making.

Thank you, for your time ! Questions ?