新疆石油地质

新疆石油地质 ›› 2008, Vol. 29 ›› Issue (3): 311-313.

• 油气勘探 • 上一篇    下一篇

靖边地区马五14碳酸盐岩储集层溶蚀孔隙特征及演化

陈小炜a,b, 陈洪德a,b, 赵俊兴b, 侯明才b   

  1. 成都理工大学a. 油气藏地质及开发工程国家重点实验室, b. 沉积地质研究院, 成都610059
  • 收稿日期:2007-10-11 发布日期:2020-08-19
  • 作者简介:陈小炜(1979-), 男, 广西南宁人, 在读博士研究生, 石油地质,(Tel)13084422809(E-mail)cxw826@163.com

Dissolved Pores and Evolution of Carbonate Reservoir in Majiagou-514 Sub-Member in Jingbian Area

CHEN Xiao-weia,b, CHEN Hong-dea,b, ZHAO Jun-xingb, HOU Ming-caib   

  1. Chengdu University of Technology: a. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation; b. Institute of Sedimentary Geology, Chengdu, Sichuan 610059, China
  • Received:2007-10-11 Published:2020-08-19

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摘要： 通过对靖边地区的马五14层岩样进行扫描电镜、铸体薄片以及压汞分析, 对该层碳酸盐岩储集层的孔隙进行了分类与特征研究, 认为次生孔隙中的溶蚀孔(缝)和晶间孔为该储集层的主要储集空间; 其储集空间物性特征、平面变化规律和古岩溶发育特征表明, 古岩溶作用对碳酸盐岩储集层起着明显的改善作用; 其次生孔隙的形成过程可划分为地表淡水控制岩溶期与埋藏溶蚀期2 个不同阶段。

关键词: 鄂尔多斯盆地, 碳酸盐岩, 储集层, 孔隙演化

Abstract: In this paper, the samples are collected from Majiagou-514 sub-member in Jingbian area and analyzed by scanning electronic microscopy (SEM), casting thin section and mercury penetration. The category and feature of pores in carbonate reservoir dominated by dissolved and intercrystal pores are presented. The reservoir property has been obviously improved by the paleokarst process. Its genetic process of secondary pores can be divided into the meteoric water controlled karst phase and the buried condition controlled solution phase.

Key words: Ordos basin, carbonate rocr, reservoir, pore evolution

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