Fluid Flow of Daxing Conglomerate in Langgu Depression and its Controlling Effects on Reservoir

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Abstract:

The Daxing conglomerate in Langgu depression is typical glutenite fan sediment in steep slope belt of faulted basin. By analyzing the data of core, petrographic thin section, scanning electron microscope and “X” ray diffraction, we’ve found that fluid flow controls the reservoir development to a certain degree. The results show that there are four types of fluid affecting the reservoir of Daxing conglomerate-meteoric fresh water, organic acid, alkaline fluid and abnormal high pressure fluid. We’ve studied fluid flows in different diagenetic stages combining the observation of clay mineral and carbonate cement and we find that two acid fluid events and abnormal high pressure fluid have determined the development of three pore belts in the longitudinal section.

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Periodical:

Advanced Materials Research (Volumes 616-618)

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137-140

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December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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