Parameters on reconstructions of geohistory, thermal history, and hydrocarbon generation history in a sedimentary basin

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:6689449

Cao, S; Lerche, I

Geological processes related to petroleum generation, migration, and accumulation are very complicated in terms of time and variables involved, and are very difficult to simulate by laboratory experiments. For this reason, many mathematic/computer models have been developed to simulate these geological processes based on geological, geophysical, and geochemical principles. Unfortunately, none of these models can exactly simulate these processes because of the assumptions and simplifications made in these models and the errors in the input for the models. The sensitivity analysis is a comprehensive examination on how geological, geophysical, and geochemical parameters affect the reconstructions of geohistory, thermal history, and hydrocarbon generation history. In this study, a one-dimensional fluid flow/compaction model has been used to run the sensitivity analysis. The authors will show the effects of some commonly used parameters such as depth, age, lithology, porosity, permeability, unconformity (time and eroded thickness), temperature at sediment surface, bottom hole temperature, present day heat flow, thermal gradient, thermal conductivity and kerogen type, and content on the evolutions of formation thickness, porosity, permeability, pressure with time and depth, heat flow with time, temperature with time and depth, vitrinite reflectance (R/sub 0/) and TTI with time and depth, oil window in terms of time and depth, and amount of hydrocarbon generated with time and depth.

• OSTI ID: 6689449
• Report Number(s): CONF-880301-
• Resource Relation: Conference: Annual meeting of the American Association of Petroleum Geologists, Houston, TX, USA, 20 Mar 1988
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
NATURAL GAS DEPOSITS
GEOLOGIC HISTORY
PETROLEUM DEPOSITS
COMPUTERIZED SIMULATION
EXPLORATION
GEOCHEMISTRY
GEOLOGIC MODELS
GEOLOGY
GEOPHYSICS
MASS TRANSFER
SEDIMENTARY BASINS
SENSITIVITY ANALYSIS
THERMODYNAMICS
CHEMISTRY
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
MINERAL RESOURCES
RESOURCES
SIMULATION
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)