JIANG, JIANQUN, China University of Geosciences, Dept. of Petroleum, Wuhan, China
ABSTRACT: The Organic-fluid Evolution Dynamics,
Migration
and Entrapment Mechanism in
the East Sag of Liaohe Basin, China
The East Sag of Liaohe basin locates in the northeast of China, which is a part of Bohai gulf basinone of the greatest petroleum provinces in China. Its complicated geology condition (a rifty basin developed in Cenozoic experienced early extension and late strike-slip activity) and well-developed volcanic rocks make it a multi-sources, multi-productions, extremely unbalanced distribution petroleum area.
A lot of works have been done on the static elements such as structure, sedimentation
and the essential elements of reservoir. Many bore holes, however, turned out to be dry
wells while some neighbor bore holes in the similar geology condition are high productive.
So the simple static description can't meet the exploration demand. I turn to
organic-fluid evolution, migration
and accumulation mechanism study based on petroleum
system and dynamics of petroleum accumulation theory. This research focuses on the
analysis of temperature, pressure, fluid and chemical field based on the source rock
determination and conduit net creation. Finally petroleum
migration
and accumulation model
in different geology background is created by static description and dynamic analysis
through comprehensively making use of geologic, geophysics, and geochemical data. By this
research, the dominated conduit theory of petroleum
migration
will be advanced and
petroleum distribution rule in this rifty basin will be ascertained.
AAPG Search and Discovery Article #90909©2000 AAPG Foundation Grants-in-Aid