Intro to OAG

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8 Terms

1
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Resources

Qtn of petroleum that is potentially recoverable but doesn’t meet the requirements for commercial reserves

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Reserves

Qtn of petroleum that is commercially recoverable under defined conditions

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Factors affecting Recoverablity

  1. Technology

  2. Economics of the Country

  3. Development plans in place

  4. Legal conditions

  5. Market conditions


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Define exploration

Process of searching of hydrocarbon accumulation

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Activities in Exploration

Regional Geology

Geological mapping

Geophysical surveying

Seismic interpretation

Prospect Identification

Exploration Drilling

Well logging

Discovery or Failure


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What is upstream and it’s activities?

Ans: Part of the industry that deals in exploration and production of petroleum products.

Activities

  1. Geological studies

  2. Geophysical surveys

  3. Exploration

  4. Drilling

  5. Appraisal

  6. Well Evaluation

  7. Production

  8. Reservoir management

  9. Well Intervention

  10. Abandonment


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Seismic Reflection Theory

1. Seismic waves produced from controlled energy travel into the earth subsurface

  1. When they encounter boundaries between different properties, some energy is reflected

  2. The reflected signals are recorded and are processed to create an image of the subsurface


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Structures observed using seismic data

  1. Faults

  2. Anticlines

  3. Traps

  4. Stratigraphic features

  5. Geological boundaries