--> Abstract: Source to Surface - A Model of Hydrocarbon Migration/Seepage, by M. D. Matthews; #90959 (1995).
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Abstract: Source to Surface - A Model of Hydrocarbon Previous HitMigrationNext Hit/Seepage

Martin D. Matthews

The Physical and Chemical Constraints on Previous HitMigrationNext Hit from Source to Reservoir are Joined with the Spatial and Chemical Information Available from Surface Seepage to Better Understand the Process of Previous HitMigrationNext Hit

The processes leading to hydrocarbon micro and macro seepage at the surface (tertiary Previous HitmigrationNext Hit) must obey the same physical laws followed by Previous HitmigrationNext Hit within the source rock (primary Previous HitmigrationNext Hit), from source to reservoir (secondary Previous HitmigrationNext Hit) and up the production string. Evidence indicates that the dispersed mechanisms are not effective in mass transport of hydrocarbon in the subsurface but are effective both in blurring or destroying hydrocarbon concentrations (source, reservoir, and along the route of Previous HitmigrationNext Hit). Evidence does, however support the importance of Previous HitseparateNext Hit Previous HitphaseNext Hit Previous HitmigrationNext Hit as a mechanism of Previous HitmigrationNext Hit.

The focused Previous HitmigrationNext Hit of hydrocarbons is considered as a rate process. The rate of generation of mobile hydrocarbons in a source rock and their rate of transport along the Previous HitmigrationNext Hit route must be greater than the loss of these hydrocarbons by dispersive mechanisms. The effects of the Previous HitmigrationNext Hit pathway are examined, particuarly the changing pressure and temperature effects and the lithologic hetrogeniety along the Previous HitmigrationTop path.

AAPG Search and Discovery Article #90959©1995 AAPG Rocky Mountain Section Meeting, Reno, Nevada