COMPREHENSIVE RESEARCH OF EFFECTIVE HYDROCARBON SOURCEROCK OF LOWER STRATA FROM SINIAN TO SILURIAN SYSTEM INSOUTHEAST AREA OF SICHUAN PROVINCE

LIU Ruo-bing，TIAN Jing-chun， WEI Zhi-hong，ZHANG Ming-wen，ZHONG Shui-qing，ZHANG G

doi:10.11764/j.issn.1672-1926.2006.06.824

2006 , Vol. 17 >Issue 6: 824 - 828

DOI: https://doi.org/10.11764/j.issn.1672-1926.2006.06.824

COMPREHENSIVE RESEARCH OF EFFECTIVE HYDROCARBON SOURCEROCK OF LOWER STRATA FROM SINIAN TO SILURIAN SYSTEM INSOUTHEAST AREA OF SICHUAN PROVINCE

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1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology,Chengdu 610059, China；2.Southern Exploration and Development Company, SINOPEC, Kunming 650200, China；3.CNPC Sichuan Petroleum, Chengdu 610051, China; 4.State Key Laboratory of Oil and Gas ReservoirGeology and Exploitation, Southwest Petroleum University, Chengdu 610050, China

Received date: 2006-06-19

Revised date: 2006-08-08

Online published: 2006-12-10

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Abstract

The strata from Sinian to Silurian system are new formations and fields with better exploration potential in southeast area in Sichuan province, but the degree of prospecting is quite low. Based on the ground outcrops and drilling core samples, contrasted and analysed the organic geochemical characteristic, gas source and asphalt source, it clarifies that the grey-black mudstone and shale are main hydrocarbon source rocks, included Niu-Ti-Tang formation of lower Cambrian system, Wu-feng formation of lower Ordovieian system and Long-ma-xi formation of lower Silurian system, whose developing periods consist with the converting periods of earth tectonic framework or the important transformation of sedimentary basin character. The hydrocarbon source rock of Long-ma-xi formation of lower Silurian system is most developing among them. At the same time, it also clarifies the lateral continuity and the main controlling factor of the structure and deposition of the chief hydrocarbon source rock.

Key words： Southeast area of Sichuan province; Sinian; Silurian; Hydrocarbon source rock; High steep structure.

Cite this article

LIU Ruo-bing，TIAN Jing-chun， WEI Zhi-hong，ZHANG Ming-wen，ZHONG Shui-qing，ZHANG G . COMPREHENSIVE RESEARCH OF EFFECTIVE HYDROCARBON SOURCEROCK OF LOWER STRATA FROM SINIAN TO SILURIAN SYSTEM INSOUTHEAST AREA OF SICHUAN PROVINCE[J]. Natural Gas Geoscience, 2006 , 17(6) : 824 -828 . DOI: 10.11764/j.issn.1672-1926.2006.06.824

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