新疆石油地质

新疆石油地质 ›› 2002, Vol. 23 ›› Issue (2): 124-126.

• 油气勘探 • 上一篇    下一篇

和田河气田碳酸盐岩储集层的岩溶作用

杨威1, 王清华2, 赵仁德2, 刘效曾2   

  1. 1.中国石油 石油勘探开发科学研究院 廊坊分院,河北 廊坊065007;
    2.中国石油 塔里木油田分公司,新疆 库尔勒 841000
  • 收稿日期:2001-06-03 出版日期:2002-04-01 发布日期:2020-08-07
  • 作者简介:杨威（1971-）,男,硕士,工程师,从事碳酸盐岩沉积与储集层研究。联系电话：010-69213551

Karstification of Carbonate Reservoir in Hetian River Gas Field of Tarim Basin

YANG Wei, WANG Qin-hua, ZHAO Ren-de, LIU Xiao-zeng   

  • Received:2001-06-03 Online:2002-04-01 Published:2020-08-07
  • About author:YANG Wei (1971-), Male, Master, Engineer, Petroleum Geology, Langfang Branch of Scientific Research Institute

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摘要： 和田河气田是塔里木盆地最近探明的大型碳酸盐岩气田,主要储集层为奥陶系潜山灰岩和石炭系生屑灰岩,岩溶作用十分发育。根据各类岩溶发生的时间、机理和部位的研究认为,岩溶作用主要发育有三种:层间岩溶、风化壳岩溶和埋藏岩溶。层间岩溶和风化壳岩溶由大气淡水作用形成,奥陶系潜山灰岩埋藏岩溶由有机酸作用而成,石炭系。生屑灰岩埋藏岩溶由硫酸溶蚀形成。岩溶作用主要受控于岩性、构造、古地貌和古气候,岩溶作用可提高储集层孔隙度和渗透率。

关键词: 塔里木盆地, 和田河气田, 碳酸盐岩, 储集层, 孔隙类型, 岩溶作用

Abstract: Hetian river gas field, a large-scale carbonate gas pool recently found or proved in Tarim basin, is well-developed in karstification for its major reservoirs such as Ordovician buried hill limestone and Carboniferous bioclastic limestone. Based on the time, location and mechanism of each type of karsts, the primarily developed karstifications include interlayer karst and weathering crust karst formed by atmospheric fresh water process as well as buried karst, of which Ordovician buried hill karst was formed by organic acid action,while Carboniferous bioclastic limestone buried karst by sulfidation dissolution. The karstification is mainly controlled by lithology, structure, palaeogeomorphology and palaeoclimate, and it could improve porosity and permeability in the carbonate reservoir.

Key words: Tarim basin, Hetian river gas field, carbonate rock, reservoir, porosity type, karstification

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