On the Source Nature of Upper Dacangfang Formation in Biyang Depression and Estimation of Its Potentiality

ZHOU Xiao-jin; WU Xin-yi

Semibathile facies was developed in the upper Dacangfang formation of Biyang depression, and its dark mudstones with parent material of type Ⅱ₁ and being organic abundant, have reached a high maturation stage suggesting a strong generation potential. Based on oil-source correlation, the authors believe that the oil of Dacangfang much differs from those of Eh₂ and Eh₃ members in terms of physical properties, carbon isotopics, chromatography of saturated hydrocarbons, GC-MS characteristics of aromatic hydrocarbons, but geochemically similar to the dark grey mudstones in Dacangfang formation, i.e. attributed to authigenic and authi-reservoired deposits. The belt of Shuanghe-Zhaoao-Anpeng in the steep slope th the south is considered as a favourable area in Dacangfang formation.

On the Source Nature of Upper Dacangfang Formation in Biyang Depression and Estimation of Its Potentiality

Wuxi Research Institute of Experimental Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151,China

Received Date: 2003-06-08

Rev Recd Date: 2003-12-11

Publish Date: 2004-09-10

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Abstract: Semibathile facies was developed in the upper Dacangfang formation of Biyang depression, and its dark mudstones with parent material of type Ⅱ₁ and being organic abundant, have reached a high maturation stage suggesting a strong generation potential. Based on oil-source correlation, the authors believe that the oil of Dacangfang much differs from those of Eh₂ and Eh₃ members in terms of physical properties, carbon isotopics, chromatography of saturated hydrocarbons, GC-MS characteristics of aromatic hydrocarbons, but geochemically similar to the dark grey mudstones in Dacangfang formation, i.e. attributed to authigenic and authi-reservoired deposits. The belt of Shuanghe-Zhaoao-Anpeng in the steep slope th the south is considered as a favourable area in Dacangfang formation.

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Reference (7)

[1]	蒂索 B P,威尔特D H.石油形成和分布.北京:石油工业出版社,1989[Tissot B P, Welt D H. Petroleum formationa nd distribution. Beijing: Petroleum Industry Press,1989]
[2]	张义纲,等.天然气的生成聚集和保存.南京:河海大学出版社,1991[Zhang Yigang,et al. The generation, accumulation and preservation of natural gas. Nanjing:Fluviomarine University Press,1991]
[3]	Snowden L R and Powell T G. Immature oil and condensate-modification of hydrocarbon generation model for terrestrial organic matter .AAPG Bulletin, 1982, 66:46～72
[4]	张新社,等.泌阳凹陷腹部湖相白云岩油藏地质特征.新疆石油地质,2000,21(6):54～60[Zhang Xinshe, et al. Geologic characteristics of lacustrine dolomite reservoirs in Biyang depression hinterland. Xinjiang Petroleum Geology,2000,21(6):54～60]
[5]	胡爱权.古气候变迁对泌阳断陷湖盆陆相层序发育的影响.江汉石油学院学报,1998,20(1):37～42[Hu Shouquan. Influence of Paleoclimatic changes on the development of terrigenous sequence in Biyang lacustrine faulted basin. Journal of Jianghan Petroleum Institute,1998,20(1):37～42]
[6]	陈世加,等.干酪根裂解气和原油裂解气的成因判识方法.石油实验地质,2002,21(4):87～92[Chen Shijia. A method of genetic differentiation of gases by Rerogen crncking and oil cracking. Petroleum Geology and Experiment,2002,24(4):87～92]
[7]	范璞,等.塔里木油气地球化学.北京:科学出版社,1990.29～40[Fan Pu.Petroleum Geochemistry of Tarim Basin. Beijing: Science Press,1990.29～40]

On the Source Nature of Upper Dacangfang Formation in Biyang Depression and Estimation of Its Potentiality

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