Res03 Reservoir Evaluation

8/2/2019 Res03 Reservoir Evaluation

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IPA Use Only

Project Number: . Analysis Type: . Version: .

Module ID: (Choose one).

Project Name: . Field Name: .Reservoir Module

Reservoir Evaluation

Reservoir Evaluation Strategy

1. How would you describe the reservoir evaluation schedule and strategy with respect to

facilities front-end engineering and design? (Check one)

1 Sequential

2 Overlapped

3 Phased

a) If overlapped, which of the descriptions below best describes the nature of overlapping?

(Check one)

1 Partial overlap and non-integrated (wholly separate teams)2 Partial overlap and partial integration

3 Full overlap and full integration

Geophysical Data Evaluation

1. What seismic coverage is available? (Check all that apply)

2D grid 2D multi-component

3D volume 3D multi-component

4D volumes

2. Are there overburden problems leading to:

Depth conversion difficulties? 1 Yes 0 No

Migration problems/structural distortion? 1 Yes 0 No

Amplitude or attribute distortion? 1 Yes 0 No

January 2002 Page 1 of 7 Reservoir Module

IPA Confidential Document Reservoir Evaluation


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Reservoir imaging problems? 1 Yes 0 No

Please elaborate on any Yes answers above: .

3. Have amplitudes or attributes (including AVO and inversions) been analyzed?

1 Yes 0 No

If yes, please answer the following:

Are hydrocarbon indicators present? 1 Yes 0 No

Can hydrocarbon distributions be mapped? 1 Yes 0 No

Can reservoir architecture and geometry be mapped? 1 Yes 0 No

Can the attributes be inverted to reservoir properties? 1 Yes 0 No

4. Please rate the clarity of the seismic imaging of the reservoir architecture and reservoir

geometry:

Excellent Moderate Poor

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5. Please rate the ability to seismically map reservoir quality and reservoir properties:


1 2 3 4 5

6. Please rate the overall quality of the seismic data and usefulness of the seismic

interpretation:


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Geologic Data Evaluation

Log Data

1. How many wells are available for log analysis? .




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2. Is the log analysis complete?

1 Yes 0 No

3. How critical is the log analysis to the overall reservoir evaluation?.

Very Critical Moderate Not Critical

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4. Are there any problems with:

Porosity or permeability calculations? 1 Yes 0 No

Pay zone identification? 1 Yes 0 No

Reservoir unit correlation? 1 Yes 0 No

Water saturation calculation? 1 Yes 0 No


Core Data

1. How many wells are available for core analysis? .

2. Please describe available core: (Check all that apply)

Side wall core from some reservoirs

Side wall core from all reservoirs

Conventional core from some reservoirs

Conventional core from all reservoirs

3. Please identify the types of core analysis performed: (Check all that apply)

Special Core Analysis (SCAL) Sedimentology

Capillary pressure Clay mineralogy

Wettability PorosityRelative permeability

4. Is the core analysis complete?

1 Yes 0 No

5. How critical is the core analysis to the overall reservoir evaluation?




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Very Critical Moderate Not Critical

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6. Are there any core analysis problems with:

Porosity or permeability calculations? 1 Yes 0 No

Pay zone identification? 1 Yes 0 No

Reservoir unit correlation? 1 Yes 0 No

Water saturation calculation? 1 Yes 0 No

Depositional environment interpretation? 1 Yes 0 No


Fluid Data Evaluation

1. How well defined are the fluids? (Select only one)

1 Production history or early production system

2 Definitive well tests from major reservoirs

3 Some testing and analysis

4 Analog data

5 Assumed

2. How many wells are available for fluid analysis? .




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3. Are fluid samples available?

Available AnalyzedAll major flow

unitsFluid Not

PresentYes No Yes No Yes No

Oil 1 0 1 0 1 0 9

Gas 1 0 1 0 1 0 9

Condensate/NGL 1 0 1 0 1 0 9

Water 1 0 1 0 1 0 9

4. What types of analyses have been performed (Check all that apply)?

1 PVT/Phase behavior

2 Geochemical

3 Recombination

5. Do fluid properties vary areally or vertically?

1 Yes 0 No

6. Do you expect the fluid properties to vary with time?

1 Yes 0 No

If yes, please explain.

7. Are pressure data available?

1 Yes 0 No

a) Within the field from

all major flow units? 1 Yes 0 No

the oil leg? 1 Yes 0 No 9 Oil Not Present

the gas leg? 1 Yes 0 No 9 Gas Not Present

the water leg? 1 Yes 0 No 9 Water Not Present

8. Are there any fluid analysis problems with:




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Identifying compartments? 1 Yes 0 No

Correlating flow units? 1 Yes 0 No

Understanding flow properties? 1 Yes 0 No

Phase behavior? 1 Yes 0 No

GOR, CGR, liquid yields? 1 Yes 0 No

Sample contamination? 1 Yes 0 No


Data Interpretation, Integration, and Reservoir Modeling

1. Has a full, integrated 3D geologic model been developed incorporating all well, seismic and

fluids data?

1 Yes 0 No

a) Were fluid flow units used to simplify the model?

1 Yes 0 No

2. Has a full 3D reservoir simulation been completed?

1 Yes 0 No 2 Underway

3. Did the simulation test the sensitivity of the following? (Check all that apply)

Drive mechanism Well placement

Recovery factors Per well production

Reserve estimates Overall depletion strategy

Secondary recovery opportunities Production forecasts

4. Was a history match performed?

1 Yes 0 No 9 No historical data

a) What data were history matched? .

b) What was the duration of the history match? .(Choose one)

5. Please rate the quality of the 3D simulation.




7/7


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Res03 Reservoir Evaluation