Reservoir characteristics and formation mechanism of Lower Permian Shan 2 member in northern Zizhou area, Ordos Basin

  • WANG Wanli ,
  • LI Guofa ,
  • GUI Jinyong
Expand
  • 1. Department of Geology, Northwest University, Xi’an 710069, China; 2. State Key Laboratory of Continental Dynamics,Northwest University, Xi’an 710069, China

Online published: 2013-04-20

Abstract

Based on the analysis of cast slices, scanning electron microscope, mercury injection test and well logging, this paper studied the physical properties and formation mechanism of Shan 2 member in northern Zizhou area, Ordos Basin. The result shows that the reservoir of Shan 2 member mainly developed quartz sandstone and lithic sandstone.The reservoir spaces are mainly intergranular pores and dissolved pores of P1sh23, and micropores of P1sh22 and P1sh21 reservoirs. The reservoir belongs to low porosity and low permeability reservoir. Delta front subaqueous distributary channel is the main facies belt for forming reservoirs. The reservoir properties are controlled by sedimentation, diagenesis, pore structure types and its combination patterns. The physical properties were mainly reduced by compaction press-solution and cementation.

Cite this article

WANG Wanli , LI Guofa , GUI Jinyong . Reservoir characteristics and formation mechanism of Lower Permian Shan 2 member in northern Zizhou area, Ordos Basin[J]. Lithologic Reservoirs, 2013 , 25(2) : 49 -54 . DOI: 10.3969/j.issn.1673-8926.2013.02.008

References

[1] 长庆油田石油地质志编写组.中国石油地质志:卷12[M].北京:石油工业出版社,1992:87-96.
[2] 王华,郑荣才,周祺,等.鄂尔多斯盆地长北气田山2 段三角洲沉积体系和砂体展布特征[J].岩性油气藏,2008,20(2):22-28.
[3] 张满郎,李熙喆,谷江锐,等.鄂尔多斯盆地中部山2 段储层精细评价[J].岩性油气藏,2010,22(3):71-77.
[4] 李君文.基准面旋回与储层宏观非均质性的关系———以鄂尔多斯盆地东部山2 段为例[J]岩性油气藏,2011,23(3):29-34.
[5] 樊太亮,郭齐军,吴贤顺.鄂尔多斯盆地北部上古生界层序地层特征与储层发育规律[J].现代地质,1999,13(1):32-37.
[6] 陈洪德,侯中健,田景春.鄂尔多斯地区晚古生代沉积层序地层学与盆地构造演化研究[J].矿物岩石,2001,21(3):16-22.
[7] 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:自然科学版,2003,30(3):236-242.
[8] 梁积伟,郭艳琴,李玮,等.靖边气田山西组下段储层沉积微相特征[J].西北大学学报:自然科学版,2007,37(5):808-814.
[9] 邸世祥.中国碎屑岩储集层的孔隙结构[M].西安:西北大学出版社,1991:1-362.
[10] 陈孟晋,刘锐娥,孙粉锦,等.鄂尔多斯盆地西北部上古生界碎屑岩储层的孔隙结构特征初探[J].沉积学报,2002,12(4):639-643.
[11] 刘锐娥.鄂尔多斯盆地北部上古生界碎屑岩储层形成机理及主控因素研究[D].西北大学地质系,2004.
[12] 王建伟,鲍志东,田海芹,等.前前陆盆地层系砂岩成岩环境特征及其孔隙演化———以鄂尔多斯盆地西缘二叠系为例[J].岩石矿物学杂志,2004,23(1):38-41.
[13] 付锁堂,石小虎,南珺祥.鄂尔多斯盆地东北部上古生界太原组及下石盒子组碎屑岩储集层特征[J].古地理学报,2010,12(5):609-617.
[14] 黄思静,侯中建.地下孔隙度和渗透率在时间和空间上的变化及影响因素[J].沉积学报,2001,19(2):224-232.
[15] 林景晔.砂岩储集层孔隙结构与油气运聚的关系[J].石油学报,2004,25(1): 44-47.
[16] 刘林玉,陈刚,柳益群,等.碎屑岩储集层溶蚀型次生孔隙发育的影响因素分析[J].沉积学报,1998,16(2):97-101.
[17] Billault V D,Beaufort A B,Lacharpagne J C. A nanopetrographic and textural study of grain-coating chlorites in sandstone reservoirs[J].Clay Minerals,2003,38:315-328.
[18] Berger A,Gier S,Krois P. Porosity-preserving chlorite cements in shallow-marine volcaniclastic sandstones:Evidence from Cretaceous sandstones of the Sawan gas field,Pakistan[J]. AAPG Bulletin,2009,93:595-615.
[19] 黄思静,杨俊杰,张文正,等.不同温度条件下乙酸对长石溶蚀过程的实验研究[J].沉积学报,1995,13(1):7-17.
Outlines

/