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Copyright 2007, , All rights reserved

Risk Management and Control


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CAP Rock is a must!CAP Rock is a must!

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Injection OptionsInjection Options

20

6

5/

4

2

3

1

/

13 3/

20

6

5/

13 3/

4

20

6

5/

13 3/

4

. .

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Copyright 2007, , All rights reserved 4

Why Risk Management?


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Assurance ProcessAssurance Process

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Geology and Data Evaluation

Geomechanics Model & Simulations

Pressure Tests & Model Validation

Operational Procedures

WellFacilitiesRisks

Data Acquisition & Evaluation

FEED

MONITOR

ING


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Assurance ProcessAssurance Process

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Geology and Data Evaluation

Geomechanics Model & Simulations

WellFacilitiesRisks

FEED


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Jigsaw Puzzle


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Jigsaw Puzzle


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Geologic EvaluationGeologic Evaluation

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Geologic ModelGeologic Model

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Geologic ModelGeologic Model

Layer Zone Depth Stress GR Young's

Modulus

Poisson

Ratio K Cw Spurt Porosity

(m) (GPa) (GAPI) (GPa) (mD) (ft/min ) (gal/100ft )

1 M xxx 51.8 123.63 2515 0.32 0.10 0.00175 1.68 0.12

2 G- A xxx 41.3 50.89 5488 0.13 2043.55 0.00886 8.85 0.21

3 G- B xxx 42.4 51.46 6772 0.16 953.29 0.00832 8.30 0.18

4 G- C xxx 44.2 66.42 4380 0.17 569.78 0.00795 7.93 0.20

5 G- D xxx 44.7 129.69 5200 0.19 35.78 0.00596 5.93 0.13

6 N xxx 47.5 118.22 5176 0.25 0.05 0.00131 1.23 0.08

7 I xxx 45.3 79.13 5500 0.20 3.40 0.00428 4.23 0.13

8 R xxx 47.7 108.69 5470 0.23 0.02 0.00061 0.53 0.08

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Where to Inject?Where to Inject?

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Uncertainties and MitigationUncertainties and Mitigation

Containment Assurance: Stress ProfileSensibility Studies: GeoMechanical Model Parameters

Rate of Injection Design

Input Data for Probabilistic Analysis Well-to-well distance

Capacity

Pressure Increase due to Injection

Operational parameters and surface equipment recommendations

Wellbore Isolation

No Information on well!

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Sensitivity StudiesSensitivity Studies

Fracture Half-Length (ft)

FractureHeight(ft)

0 200 400 600

-100

0

100

200

300

400

500

3000

6000

9000

12,000

15,000 m3

Shale's frac pressure is 100 psi larger


FractureHeight(ft)

0 100 200 300 400 500 600 700

0

100

200

300

400

500

600

3000

6000

9000

12,000

15,000 m3

Shale's frac propagation pressure is 100 psi less.


Fracture

Heig

ht(ft)

0 100 200 300 400 500 600

-200

-100

0

100

200

300

3000 m3 60009000

12,000

15,000

Shale's frac propagation pressure is 200 psi larger.

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Probabilistic AnalysisProbabilistic Analysis

FractureFracture Length & Well SpacingLength & Well Spacing

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Probabilistic AnalysisProbabilistic Analysis Fracture DimensionsFracture Dimensions

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Assurance Process :Assurance Process : Continue ValidationContinue Validation

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Pressure Tests & Model Validation

Operational Procedures

Data Acquisition & Evaluation MON

ITORING


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Risk Control Assurance

Comprehensive risk assessment provides the necessary information to reduce risk and mitigate the impact

to the Environment.

Commitment & Leadership

Risk Management

Design and Planning

Implementation and Monitoring

Assessment and Continuous Improvement

Improvement

Control

Corrections

Risk Control Assurance


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Actual Domain?

660

680

700

720

740

760

780

800

0 50 100 150 200 250 300 350

Half-Length (m)

FractureHeight(m)

100

200

400

800

2,000

10,000

50,000

150,000

300,000

A

B

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Jigsaw Puzzle


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Adequate Risk Management

Minimizes surprises

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Multiple Controls


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INTERDEPENDENT TEAMS

INTERDEPENDENT TEAMS


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Jigsaw Puzzle


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PowerSTIM Solution


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PowerSTIM Team

Multi-disciplined members with Regional focus

drawing on our Worldwide Technical expertise


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PowerSTIM Deliverables

Phase 1 Basin- and reservoir-specific interpretation and

completionmodels developed

Technical solutions and new completiontechniques developed and documented

Brief report, including go-forward plan, delivered


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PowerSTIM Deliverables

Phase 2 Delivering solutions in time,every time

for ongoing projects

Based on new interpretation and completionmodels from Phase 1

Models and solutions applicable to futurewell developmentand workover candidates

Deliverable, including reservoircharacterization, completion design,execution, full evaluation with go-forward

plan


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PowerSTIM - a performance

driven service

Reservoir

Characterization


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Completion

Design


driven service


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driven service

Execute


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driven service

Evaluate


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driven service

Summary


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In-Time

Every Time

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