Reservoir characteristics of Ma 5 1+2 sub-member of the Ordovician Majiagou Formation in Gaoqiao area, Ordos Basin

  • TIAN Bing ,
  • PANG Guoyin ,
  • WANG Qi ,
  • TANG Jun ,
  • LIAO Peng
Expand
  • 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China; 2. Research Institute of Exploration and Development, Huabei Oilfield Company, Sinopec, Zhengzhou 450000, China; 3. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710021, China

Online published: 2012-08-20

Abstract

Based on cores, cast thin sections, scanning electron microscope, mercury injection data, this paper studied the reservoir characteristics of Ma 5 1+2 sub-member of the Ordovician Majiagou Formation in Gaoqiao area. The result shows that the types of reservoir rock are mainly of dissolved dolomite, mud powder crystal dolomite, followed by grain (sand clastic) dolomite and brecciated dolomite. The main reservoir pore types are mainly dissolved pores, intercrystal pores, intercrystal dissolved pores, followed by gypsummould pores and fractures. The properties of reservoir rocks are poor, the average porosity is 3.26%, and the average permeability is 1.2 mD.With strong heterogeneity, it is totally a low permeability and lowporosity reservoir. The study of reservoir characteristics can provide geologic basis for the further
exploration and development in this area.

Cite this article

TIAN Bing , PANG Guoyin , WANG Qi , TANG Jun , LIAO Peng . Reservoir characteristics of Ma 5 1+2 sub-member of the Ordovician Majiagou Formation in Gaoqiao area, Ordos Basin[J]. Lithologic Reservoirs, 2012 , 24(4) : 24 -28 . DOI: 10.3969/j.issn.1673-8926.2012.04.005

References

[1] 雷卞军,卢涛,王东旭,等.靖边气田马五1- 4亚段沉积微相和成岩作用研究[J].沉积学报,2010,28(6):1153-1164.
[2] 包宏平,杨承运.碳酸盐岩层序分析的微相方法———以鄂尔多斯东部奥陶系马家沟组为例[J].海相油气地质,2000,5(1/2):153-157.
[3] 邸领军,杨承运,杨奕华,等.鄂尔多斯盆地奥陶系马家沟组溶斑形成机理[J].沉积学报,2003,21(2):260-265.
[4] 冯增昭,陈继新,张吉森.鄂尔多斯地区早古生代岩相古地理[M].北京:地质出版社,1991:96-101.
[5] 何自新,杨奕华.鄂尔多斯盆地奥陶系储层图册[M].北京:石油工业出版社,2004:12.
[6] 雷卞军,张吉,王彩丽,等.高分辨率层序地层对微相和储层的控制作用———以靖边气田统 5 井区马五段上部为例[J].岩性油气藏,2008,20(1):1-7.
[7] 王作乾,何顺利.靖边下古生界气藏马五段碳酸盐岩储层综合评价[J].石油天然气学报,2009,31(4):180-183.
[8] 马振芳,付锁堂,陈安宁.鄂尔多斯盆地奥陶系古风化壳气藏分布规律[J].海相油气地质,2000,5(1/2):98-102.
[9] 王小芬,杨欣.鄂尔多斯盆地富县地区马五段碳酸岩成岩作用研究[J].岩性油气藏,2011,23(3):75-79.
[10] 张敏,王正允,王丽云,等.靖边潜台南部地区马家沟组储集岩的成岩作用及成岩相[J].岩性油气藏,2009,21(1):27-33.

Outlines

/