Fiber Optics - Important? Innovative? Emerging?


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TGS Enlightening the Reservoir® 26 November 2013

Company Confidential

Roadmap

 Fiber-optic sensing: PRM and DAS  Why reservoir monitoring is important  Fiber-optic sensors: the right choice for monitoring

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Fiber-optic PRM Sensors

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PRM and DAS are Different Techniques

Property

PRM

DAS

Areal monitoring

Well bore monitoring

Surface

Downhole

Discrete sensor housings

Continuous fiber length

Multi-component

Yes

No (?)

Noise Floor

Low

High

Linear Sampling

Low

High

Areal Sampling

Dense

Sparse

Dedicated

Shared / Pre-existing

Primary O&G Application Environment Layout

Fibers

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Why is Areal Monitoring Important?

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Reservoir model The road to recovery of more oil Current situation No Areal  Well centric

Monitoring

 Plausible but wrong

Investment carries unnecessary risk

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The road to recovery is not straight!

With Areal Monitoring

Models are  Field centric  Constrained

Investment assured Company Confidential

“The main benefit of 4D seismic data integration is to constrain reservoir modelling using complementary data” True model

Reservoir models matching to production data

Reservoir models matching to traditional PRM data 4D seismic data

First Break, Volume 30, July 2012 Article: 4D Seismic History Matching Using Information from the Flooded Zone Company Confidential Long Jin, Daniel Weber, Paul van den Hoek, Faruk Omer Alpak and Carlos Pirmez – Shell 11

Through-life Value

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Lifecycle Benefits are Significant

Production

Optimization Potential

Base

Infill

EOR Reduced Cost of $/bbl

Reduced Uncertainty

Time

Protection of sanctioned reserves

Cost-effective access

Recovery of most challenging resources

Source: O I Barkved, BP - EAGE Education Tour Series 2012 EET6: Seismic Surveillance for Reservoir Delivery Company Confidential

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How Areal Monitoring Generates Value Reservoir Management

New Wells Delivery

Base Management

Emerging Technology

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Fiber Sensors The Best Choice for Areal Monitoring

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Fiber-optic: The Best Choice for Monitoring Repeatable

Reliable

Scalable

Cost-effective

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Repeatable 

Permanently installed sensors 



Receiver and environmental non-repeatability are major sources of 4D noise

Repeatable sensor responses   

Very simple mechanical design Stable material selection Robust qualification process

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Reliable     

 

Fiber is resilient to water ingress No subsea power or electronics Data path redundancy Design life 25 years Warranty Ultra low fiber counts Unique planning and risk evaluation and mitigation process

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Scalable    

Simple, flexible architecture Low fiber counts Modular topside Expandable subsea

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Cost-effective

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Cost-effective

400

Day Rates (kUSD)

350

300

250

60% 12 Streamers

200

150

ABG Sundal Collier – September 2013

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Cost-effective

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Fiber-optic: The Best Choice for Monitoring Repeatable

Reliable

Scalable

Cost-effective

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Fiber-optics  Emerging?  On the contrary fiber-optic sensing is rather mature  Components extensively used for 30+ years in telecoms industry  Sensors used since mid 1980s in military applications

 Innovative?  Actually, the sensors themselves are widespread  Used in oil and gas, military, automotives, metals, aeronautics, civil engineering, food and packaging industries, medical applications …  Innovation is now as much in application as it is in sensors

 Important?  Early adopters have seen significant benefits  Most cost effective way of assuring investment performance Company Confidential

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Thank you Rob Ross +44 772 526 437 [email protected]

Any reproduction of part or all of the information contained in this PowerPoint presentation, without the prior written consent of TGS-NOPEC Geophysical Company, is prohibited. Company Confidential

© 2013 TGS-NOPEC Geophysical Company ASA. All rights reserved.

TGS Reservoir Solutions TGS provides global solutions that assure reservoir production and the highest payback for Increased Oil Recovery (IOR) schemes through:

Assuring the highest payback, lowest risk Increased Oil Recovery (IOR) schemes



High quality 4C/4D data and imaging for reservoir management



Stingray® optical Permanent Reservoir Monitoring (PRM) systems



Designed for effective delivery and operational excellence



Qualified for implementation in all field scenarios



A unique suite of risk management tools to drive lowest lifecycle cost



Reduced lifting costs and optimal recovery over >25 year life of a field Company Confidential

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