石油学报 ›› 2013, Vol. 34 ›› Issue (4): 638-646.DOI: 10.7623/syxb201304003

• 地质勘探 • 上一篇    下一篇

塔里木盆地玉北地区奥陶系储层类型及主控因素

刘忠宝1, 吴仕强1, 刘士林1, 高山林1, 岳勇2, 张仲培1, 黄秀仁3   

  1. 1. 中国石化勘探开发研究院 北京 100083;
    2. 中国石化西北油田分公司勘探开发研究院 新疆 乌鲁木齐 830011;
    3. 中国石油大学地球科学学院 北京 102249
  • 收稿日期:2013-01-13 修回日期:2013-03-30 出版日期:2013-07-25 发布日期:2013-07-04
  • 通讯作者: 刘忠宝
  • 作者简介:刘忠宝,男,1978年12月生,2001年获中国地质大学(北京)学士学位,2006年获中国地质大学(北京)博士学位,现为中国石化勘探开发研究院高级工程师,主要从事沉积储层研究工作。Email:liuzb.syky@pepris.com
  • 基金资助:

    国家重大科技专项(2011ZX05005);国土资源部全国油气资源战略选区调查与评价项目(2012GYXQ02)和中国石油化工股份有限公司科技开发部项目(P11083)资助。

Types and main controlling factors of Ordovician reservoirs in Yubei area, Tarim Basin

LIU Zhongbao1, WU Shiqiang1, LIU Shilin1, GAO Shanlin1, YUE Yong2, ZHANG Zhongpei1, HUANG Xiuren3   

  1. 1. Sinopec Research Institute of Petroleum Exploration & Production, Beijing 100083, China;
    2. Exploration & Development Research Institute, Sinopec Northwest Oil Field Company, Urumqi 830011, China;
    3. College of Earth Science, China University of Petroleum, Beijing 102249, China
  • Received:2013-01-13 Revised:2013-03-30 Online:2013-07-25 Published:2013-07-04

摘要:

对塔里木盆地玉北地区奥陶系钻井岩心、岩石薄片、铸体薄片及测井资料的详细分析,认为该地区奥陶系碳酸盐岩储集空间以孔洞、裂缝为主,主要发育4种储层类型:孔洞-裂缝型、裂缝型、孔隙-孔洞-裂缝型和孔隙-孔洞型。鹰山组上部储层受多期暴露不整合面和中高角度裂缝控制,而鹰山组下部及蓬莱坝组储层与白云石化作用及层间低角度缝发育关系密切。综合分析认为断褶翼部是下奥陶统鹰山组上部缝洞型储层发育有利区;过胜和2井EW向断裂带及东部的NE向断裂带附近是鹰山组下部—蓬莱坝组孔隙-孔洞型白云岩储层分布有利区。

关键词: 碳酸盐岩, 岩溶作用, 储层类型, 奥陶系, 塔里木盆地

Abstract:

Based on observations of cores, rock sections, casting sections, logging data of Ordovician carbonate reservoirs in the Yubei area, Tarim Basin,reservoir space is dominated by cavities and fractures, and can be classified into four types, i.e. cavity-fracture type, fracture type, pore-cavity-fracture type and pore-cavity type. Specifically, reservoirs in the upper part of the Lower Ordovician Yingshan Formation are controlled by multi-period unconformities and mid- to high-angle fractures, while reservoirs in the lower Yingshan Formation and the Penglaiba Formation are closely related to dolomitization and development of interlayer low-angle fractures. Integrated analyses indicate that flank province of fault folded structures are favourable to development of cavity-fracture reservoirs in the lower part of the Lower Ordovician Yingshan Formation, while the east-west oriented fault zone through Well shenghe 2 and the vicinity of the north-east oriented fault zone in the east part of Yubei area are favorable areas to prospect for pore-cavity dolostone reservoirs in the lower Yingshan Formation and the Penglaiba Formation.

Key words: carbonate, karstification, reservoir type, Ordovician, Tarim Basin

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