Sequence of Diagenesis Evolution of Upper Ordovician Carbonate Rocks in Tazhong Oilfield, Tarim Basin

Abstract

Abstract: Some high-quality reservoirs exist in Lianglitag limestone member of Upper Ordovician in Tazhong platform margin in Tarim basin, which have become significant targets for petroleum exploration breakthrough in recent years in this area. This paper presents indepth study of diagenesis evolution of the carbonate sediments in lithology and sedimentology, including the establishment of relevant lithology identification standards for each diagenetic stage and the cross section of diagenesis evolution for coring sections of single well as well as regional distribution and abundance of cements in various diagenesis stages and their variations of diagenesis. The results are helpful to research the controlling factors of reservoir development in this area.

Key words: carbonate rock, diagenesis evolution, lithology evidence, cathodeluminescence

CLC Number:

TE112.221

ZHOU Bo, JIA Cheng-zao, GU Jia-yu, LI Qi-ming, WU Guang-hui. Sequence of Diagenesis Evolution of Upper Ordovician Carbonate Rocks in Tazhong Oilfield, Tarim Basin[J]. Xinjiang Petroleum Geology, 2008, 29(2): 166-169.

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Sequence of Diagenesis Evolution of Upper Ordovician Carbonate Rocks in Tazhong Oilfield, Tarim Basin

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