Sedimentary Facies Research and Implications to Advantaged Exploration Regions on Lower Cambrian Source Rocks,Tarim Basin
Received date: 2014-08-29
Revised date: 2014-10-26
Online published: 2015-07-10
In recent years,large amount of hydrocarbon reserves have been discovered in the Tarim Basin.However,selection of advantaged exploration regions becomes more and more difficult because of poor knowledge of the distribution of source rocks.In this paper,outcrop profiles,drilling cores,and seismic materials were studied.The results show mild slope sedimentary models are more suitable for Yu′ertusi Formation,and source rocks mainly distribute in middle-lower mild slope and deep water shelf facies.Based on materials points and seismic profile studies,two sets of source rocks were distinguished: one lies in the northern depression,the other distributes in the south edge of southwestern depression.Distribution of source rocks in the study area coincide with discovered hydrocarbon reserves,providing new evidence for major source rocks.Meanwhile,the distributions of paleo-uplifts were considered.Three exploration regions of Manxi Lower Uplifts,Badong areas,and southwestern depression have been regarded as the most advantaged regions.
PAN Wen-qing,CHEN Yong-quan,XIONG Yi-xue,LI Bao-hua,XIONG Ran . Sedimentary Facies Research and Implications to Advantaged Exploration Regions on Lower Cambrian Source Rocks,Tarim Basin[J]. Natural Gas Geoscience, 2015 , 26(7) : 1224 -1232 . DOI: 10.11764/j.issn.1672-1926.2015.07.1224
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