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jiang han you qi qu fa xian guo cheng zhi hui gu yu tao lun
Pages: 170-176
Year: Issue:  2
Journal: Oil & Gas Geology

Keyword:  普查勘探潜江凹陷油气区发现过程水下冲积扇早第三纪江汉盆地潜江组石油地质油田;
Abstract: Most of the oil and gas reserves in Jianghan basin occurs in series ofsalt-lacustrine sediments deposided in a highly restricted rifting environmentduring the later Eogene.Their accumulation is governed both by sandstonesderived from subaqueous alluvial fans at north part of the salt lake andhalokinetic anticlines in a vortex structural system.This is a particular typedifferent from any other reservoirs known.During exploration,the study of regional geology has played an im-portant part in successful locating potential source sag and selecting maintarget bedds.But enough attention had not been paid to oil accumulationgoverned by lithofacies,and necessary means of exploration had beenlacked,we had gone a wrong way for a period of time in predicting oil fields.However,as soon as the horizons of sandstones and composite compo-nents of structures necessary for oil accumulatoin have been identified,aseries of oil fields which contain majority of oil reserves in the basin hasbeen under way of discovering.According to the recognition summed up in this paper,some suggestionshas been proposed for future prospecting.
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