塔里木盆地东部地区寒武系—奥陶系沉积相分析

doi:10.3969/j.issn.1673-8926.2009.02.014

Lithologic Reservoirs ›› 2009, Vol. 21 ›› Issue (2): 70-75.doi: 10.3969/j.issn.1673-8926.2009.02.014

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Sedimentary facies analysis of Cambrian-Ordovician in eastern Tarim Basin

HU Jiuzhen¹，RAN Qigui²，LIU Shugen¹，SUNWei¹，WANG Dong³，ZHANG Changjun¹

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Chengdu University of Technology， Chengdu 610059， China； 2. Research Institute of Petroleum Exploration and Development-Langfang， Langfang 065007， China； 3. College of Earth Sciences， Chengdu University of Technology， Chengdu 610059， China

Online:2009-06-16 Published:2009-06-16

Abstract

Abstract:

On the basis of sedimentary facies of single well, seimic data, as well as surface outcrop data，core observation，cutting logging and thin section analysis, the sedimentary facies in eastern Tarim Basin are defined, including abyssal facie, bathyal-contourite drift facies, near-shore deposits and carbonate platform. Several sub-facies and micro-facies are also recognized. Based on analysis of sedimentary microfacies, the sedimentary models, distribution and evolution in Early Cambrian-Middle Ordovician are analyzed. It is believed that plateau- basin model mainly developed in Early Cambrian in the east, and it is more obvious in Middle-Late Cambrian. Until Early-Middle Ordovician, the sedimentary facies in the study area is of typical trisection units, which are deep water aulacogen in middle part, carbonate platform and slope facies in the west and east. At the edge zone of platform and deep sea basin, reef flat reservoir developed, which is favorable for reservoir development. There also developed many types of diagenesis, and the destructive diagenesis is dominated one.

Key words: igneous rocks, logging, crossplot, Elemental Capture Spectroscopy logging, lithologic identification, Santanghu Basin

HU Jiuzhen，RAN Qigui，LIU Shugen，SUNWei，WANG Dong，ZHANG Changjun. Sedimentary facies analysis of Cambrian-Ordovician in eastern Tarim Basin[J].Lithologic Reservoirs, 2009, 21(2): 70-75.

References

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