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  • OTM-001: Identifying effect of fault reactivation

 

Identifying effect of fault reactivation

 

Challenge ID

OTM:001

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Title

Identifying effect of fault reactivation

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Theme ID

ON 3.1: Subsidence monitoring - Land motion relating to fault lines or other causes

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Originator of Challenge

Onshore: OTM

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Challenge Reviewer / initiator

PEMEX, Statoil, Sasol

 

General description

Overview of Challenge

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What is the nature of the challenge? (What is not adequately addressed at present?)

Natural fault lines - Fault line reactivation can alter the draw down efficiency of reservoirs. This reactivation could be a help, or a hindrance.  As a hindrance, for example, the hydrocarbons can escape along a newly exposed fault plane, the fault plane can result in the reservoir losing pressure or communication can be lost between reservoir compartments.  Geologists need data to assess the extent of fault reactivation to better manage reservoirs, in hand with other data (such as seismic maps)

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Thematic information requirements

1. Obtain detailed topographic information,            13. Monitor ground movement,

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Nature of the challenge - What effect does this challenge have on operations?

Reservoir management needs to be tailored to account for fault re-activation.  Effects can be losses in production and wasted costs on pressure maintenance from injection wells.

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What do you currently do to address this challenge?/ How is this challenge conventionally addressed?

Micro-seismics can indicate where fault lines lie, but do not give detailed information on fault movement

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What kind of solution do you envisage could address this challenge?

Ground movement satellite imagery could indicate fault reactivation over known and unknown fault-lines.

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What is your view on the capability of technology to meet this need? – are you currently using EO tech? If not, why not?

EO could be a useful complimentary technology

 

Challenge classification

 

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Lifecycle stage

Pre license

Exp.

Dev.

Prod.

Decom.

Score from impact quantification [1]

0

0

0

3

2

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Climate classification

NOT CLIMATE SPECIFIC

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Geographic context/restrictions

Generic onshore (Unspecified)

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Topographic classification / Offshore classification

Generic onshore (Unspecified)

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Seasonal variations

Any season

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Impact Area

Increased production

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Technology Urgency

(How quickly does the user need the solution)

Immediately (0-2 years)

 

Information requirements

 

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Update frequency

Monthly - annually

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Data Currently used

seismics / micro-seismics complimentary data

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Spatial resolution

seismics / micro-seismics complimentary data

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Thematic accuracy

 

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Example formats

GIS Shape file

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Timeliness

Within a month

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Geographic Extent

Reservoir footprint

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Existing standards

No industry standards.  TRE have their own internal INSAR standards


 


[1] Impact quantification scores: 4 – Critical/ enabling; 3 – Significant/ competitive advantage; 2 – Important but non-essential; 1 – Nice to have; 0 – No impact, need satisfied with existing technology