石油学报 ›› 2015, Vol. 36 ›› Issue (S2): 112-119.DOI: 10.7623/syxb2015S2010

• 地质勘探 • 上一篇    下一篇

含油气盆地深层有效砂岩储层判别与定量评价——以塔里木盆地库车坳陷深层为例

姜航1,2, 庞雄奇1,3, 陈冬霞1,3, 陈迪1,3   

  1. 1. 油气资源与探测国家重点实验室 北京 102249;
    2. 国土资源部油气资源战略研究中心 北京 100034;
    3. 中国石油大学盆地与油藏研究中心 北京 102249
  • 收稿日期:2015-05-11 修回日期:2015-12-12 发布日期:2016-02-24
  • 通讯作者: 庞雄奇,男,1961年8月生,1982年获江汉石油学院学士学位,1991年获中国地质大学博士学位,现为中国石油大学(北京)教授、博士生导师,主要从事油气藏形成与分布预测的教学与科研工作.Email:pangxq@cup.edu.cn
  • 作者简介:姜航,女,1986年9月生,2010年获中国石油大学(北京)学士学位,2015年获中国石油大学(北京)博士学位,现为国土资源部油气资源战略研究中心研究人员,主要从事矿产资源储量研究工作.Email:victoriajh86@aliyun.com
  • 基金资助:

    国家重点基础研究发展计划(973)项目(2011CB201100)资助.

Effective sandstone reservoir determination and quantitative evaluation of deep strata in Kuqa depression, Tarim Basin

Jiang Hang1,2, Pang Xiongqi1,3, Chen Dongxia1,3, Chen Di1,3   

  1. 1. State Key Laboratory of Petroleum Resources and Prospecting, Beijing 102249, China;
    2. Strategic Research Center of Oil and Gas Resources, Ministry of Land and Resources, Beijing 100034, China;
    3. Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China
  • Received:2015-05-11 Revised:2015-12-12 Published:2016-02-24

摘要:

通过油气聚集动力分析和物理模拟实验,揭示库车坳陷深部储层油气富集机制与临界条件,并建立有效储层判别标准与评价方法.研究表明,围岩介质毛细管力与砂岩储层毛细管力比值的大小决定储层含油气性,比值越大越有利于油气聚集,依据毛细管力比值交汇图版来判别有效储层并评价储层质量;围岩与砂岩储层毛细管力比值越大,储层质量越好;有效砂岩储层临界条件下的毛细管力比值随埋深增加表现出逐渐增大的趋势.库车坳陷深部储层有效储层级别与储层含油(气)饱和度具有明显正相关性;深层砂岩储层以II级、III级和IV级储层和非有效储层为主,有少量I级储层.

关键词: 有效储层, 围岩介质, 毛细管力比值, 定量评价, 库车坳陷

Abstract:

The hydrocarbon enrichment mechanism and critical conditions were revealed based on hydrocarbon accumulation dynamic analysis and physical simulation experiment, thus establishing effective reservoir identification criteria and assessment method deep reservoir in kuqa depression. The research has proved that ratios between surrounding-rock medium capillary force and sandstone-reservoir capillary force is able to determine the hydrocarbon-bearing property of reservoir. The greater the ratio is, the more conductive to hydrocarbon accumulation it will be. The capillary force ratio cross-plot is used to identify effective reservoirs and assess reservoir quality. The greater the ratio of capillary force between surrounding rock and sandstone reservoir is, the better the reservoir quality will be. The ratio of capillary force under the critical conditions of effective sandstone reservoirs shows a gradual growth trend with the buried depth increasing. The effective reservoir grade in deep reservoir of kuqa depression has a significant positive correlation with the oil (gas) saturation of reservoir. Deep sandstone reservoirs are dominated by Grade II, Grade III and Grade IV reservoirs as well as ineffective reservoirs with a small number of Grade I reservoirs.

Key words: effective reservoir, surrounding-rock medium, capillary force ratio, quantitative assessment, Kuqa depression

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