Delta depositional system and sandbody distr ibution of the second member of Shanxi Formation in Changbei Gasfield, Ordos Basin

  • WANG Su
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  • 1. Changbei Project Department, Changqing Oilfield Company, PetroChina, Xi’an 710021, China; 2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China

Online published: 2008-06-15

Abstract

Changbei Gasfield is located in the northeast of Shanbei Slope in Ordos Basin. Shanxi Formation of Lower Permian is a series of clastic deposits, and it can be divided into two lithologic segments (P1s1 and P1s2) , between which the second member of Shanxi Formation (P1s2) is the principal producing formation. Based on core description, mineral analysis and well logging data, Shan 2 member is considered as marine braided river delta deposit. Delta plain subfacies developed well in Changbei Gasfield, of which the widely developed distributary channel sandbodies are favorable for the hydrocarbon accumulation. The method of sequence-lithofacies paleogeographymapping is adopted to describe the sandbody distribution characteristics of Shan 2 member, which could offer reliable reference for reservoir prediction.

Cite this article

WANG Su . Delta depositional system and sandbody distr ibution of the second member of Shanxi Formation in Changbei Gasfield, Ordos Basin[J]. Lithologic Reservoirs, 2008 , 20(2) : 22 -28 . DOI: 10.3969/j.issn.1673-8926.2008.02.004

References

[ 1] 杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M] .北京:石油工业出版社, 2002: 130- 150.
[ 2] 付锁堂, 田景春, 陈洪德, 等.鄂尔多斯盆地晚古生代三角洲沉积体系平面展布特征[ J] .成都理工大学学报, 2003, 30( 3) : 236-241.
[ 3] 张晓莉, 谢正温.鄂尔多斯盆地中部山西组—下石盒子组储层特征[ J] .大庆石油地质与开发, 2005, 24( 6) : 24- 30.
[ 4] 武明辉, 张刘平, 陈孟晋.榆林气田山西组2 段孔隙发育的控制因素分析[ J] .天然气地球科学, 2006, 17( 4) : 477- 479.
[ 5] 李士祥, 胡明毅, 李霞, 等.鄂尔多斯盆地榆林气田山西组2 段砂岩成岩作用及孔隙演化[ J] .海相油气地质, 2005, 10( 2) : 31-36.
[ 6] 席胜利, 王怀厂, 秦伯平.鄂尔多斯盆地北部山西组、下石盒子组物源分析[ J] .天然气工业, 2002, 22( 2) : 21- 24.
[ 7] 庞雄奇, 陈冬霞, 张俊.隐蔽油气藏的概念与分类及其在实际应用中需要注意的问题[ J] .岩性油气藏, 2007, 19( 1) : 1- 8.
[ 8] 郑荣才, 柯光明, 文华国, 等.高分辨率层序分析在河流相砂体等时对比中的应用[ J] .成都理工大学学报, 2004, 31( 6) : 641-647.
[ 9] 郑荣才, 文华国, 梁西文.鄂尔多斯盆地上古生界高分辨率层序地层分析[ J] .矿物岩石, 2002, 22( 4) : 66- 74.
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