subsurface mapping

Course Description

Business context: A profitable development of an oil or gas field starts with a good understanding of the subsurface. As part of a subsurface evaluation team the geophysicists and geologists interpret subsurface data and provide geological models that form the basis for development planning. Construction of maps and sections of the subsurface, including integration of seismic and well data, forms an important part of the evaluation. The result should also provide illustration material on which management should be able to make decisions. Computers are frequently used to construct subsurface models and calculate reserves. A check for consistency with structural models, and against a quick manual evaluation should always be done. This course provides the tools for this.

Content of the program:

• Geological concepts, global tectonics
• Geophysical methods, production seismic
• Hydrocarbon basin mapping and analysis
• Planning, gathering and management of geological data
• Well log correlation
• Mapping of reservoir parameters and structure, integration of seismic data
• Structural styles, trapping conditions
• Subsurface stresses and pressures
• Reservoir architecture, geological modeling
• Oil and gas volumetric calculations
• Fault dimensions, properties and sealing capacity
• Case histories

Learning, methods and tools: At the end of the course participants will be able to apply geological concepts, construct maps and sections and validate computer-generated interpretations. They will be able to calculate subsurface volumes and assess their uncertainties. They will develop knowledge on faults dimensions and properties and learn how to perform fault seal analysis. They will acquire practical experience by working on actual field studies in teams.

Audience

• Geologists, petroleum engineers and geophysicists involved with the development of oil and gas reservoirs.
• Geologists needing knowledge of Correlation and Structural/Stratigraphic mapping

Prerequisites

Basic Applied Petroleum Geology

Course Schedule

1	Exploration and Production (E&P) development projects, Basin analysis Session 1 - 0.5 hr. Introduction of participants and trainer, course objectives Session 2 - 1.5 hrs. Activities in E&P, the project life cycle The role of subsurface maps and models in E&P projects Session 3 - 2 hrs. Concepts of petroleum geology, structural regimes Hydrocarbon basins/plays Plate tectonics, structural regimes Sedimentary cycles and sequences Sedimentary environments overview Origin of hydrocarbons, source-rocks and maturity Hydrocarbon traps, spill-points Exercise: structural map Oman Session 4 - 2 hrs. Hydrocarbon basins, basin analysis
2	Seismic and reservoir property data Session 1 - 2 hrs. Seismic data gathering, processing and interpretation Exercise: Interpretation seismic line France Session 2 - 1.5 hr. Robin Field Exercise: Field reserves and appraisal Session 3 - 2.5 hrs. Reservoir properties, data gathering and mapping Exercises: porosity and thickness maps
3	Structural styles, maps and sections Session 1 - 1 hr. Robin Field Exercise: Correlation Session 2 - 3 hrs. Structural styles, stresses and pressures Three exercises: structural interpretation of seismic, Nigeria, France and the North Sea Session 3 - 1 hr. Robin Field Exercise: Structural map and section
4	Volumetric calculations Session 1 - 1 hr. Robin Field Exercise: Integration of pressure data Session 2 - 3 hrs. Volumetric calculations, subsurface uncertainties Tulip Field Exercise: Net sand map and volumetrics Session 2 - 2 hrs. Robin Field Exercise : Field volumetric calculations
5	Faults, fault seals and rift basins Session 1 - 2 hrs. Faults, fault constructions and fault sealing Exercise : Dipmeter interpretation Session 2 - 1 hr. Robin Field Exercise : Subsurface development Session 3 - 2 hrs. Lacustrine basins, field examples. Session 4 - 1 hr. Course review and round-up

Instructors

Dr. Ed van Riessen, Mr. Evert Uitentuis

Instructors may vary based on location and schedule.

Classes

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Oct 18 - Oct 22 2010 - 5 Days
Kuala Lumpur, Malaysia - USD 3,850
Instructor(s): Evert Uitentuis