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天然气地球科学

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页岩油气储层测井评价技术及应用

李霞，程相志，周灿灿，李潮流，刘忠华   

  1. 中国石油勘探开发研究院，北京 100083
  • 收稿日期:2014-10-31 修回日期:2015-02-04 出版日期:2015-05-10 发布日期:2015-05-10
  • 作者简介:李霞(1982-)，女，河南光山人，高级工程师，博士，主要从事复杂碎屑岩油气藏、非常规油气藏岩石物理与测井评价方法基础研究. E-mail:leexia@petrochina.com.cn.
  • 基金资助:

    国家科技重大专项课题“复杂储层油气测井解释理论方法与处理技术”(编号:2011ZX05020-008)；中国石油集团公司科技项目“测井前沿技术与应用基础研究”(编号:2014A-3900)联合资助.

Technology and Application of Well Logging Evaluation of Shale Oil and Gas Reservoirs

LI Xia，CHENG Xiang-zhi，ZHOU Can-can，LI Chao-liu，LIU Zhong-hua   

  1. PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100083,China
  • Received:2014-10-31 Revised:2015-02-04 Online:2015-05-10 Published:2015-05-10

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摘要：

随着我国能源保障压力加大，页岩油气在我国能源结构中的地位变得越来越举足轻重。作为一种非常规油气资源，页岩油气具有自生自储、矿物成分复杂、发育微米—纳米级孔隙、通常为超低孔渗、吸附气与游离气共存等地质特征，与常规油气资源有明显差异，现有的常规油气藏测井评价理论和方法不适用。以非常规油气地质研究为指导，针对页岩油气勘探开发与工程改造需求，建立了陆相和海相不同成熟度页岩TOC测井定量评价方法，形成了页岩复杂矿物组分测井定量评价技术，提出了基于常规测井资料的岩石脆性表征新方法，建立了多参数权重法页岩储层品质测井分类方法，最终形成了页岩油气储层测井评价配套技术。该技术成果目前已在松辽盆地古龙凹陷青一段、四川盆地威远—长宁地区龙马溪组和筇竹寺组得到推广应用，有效指导了油田新钻探井、水平井和老井复查等的有利压裂层段选取工作。

关键词: 页岩油气储层, 测井评价, 总有机碳含量, 矿物组分, 岩石脆性, 储层品质

Abstract:

Along with the pressure on energy security,the status of shale oil and gas in energy structure of our country is becoming more and more important.As a kind of unconventional hydrocarbon resource,shale oil and gas are characterized by self-generation and self-storage,complex mineral composition,micro-nanometer scale pores,usually ultra-low porosity and permeability,and adsorbed gas and free gas coexistence.The above features have obvious differences from the conventional hydrocarbon resources,so the existing well logging evaluation theories and methods for conventional reservoirs are not applicable.The article guided by the unconventional hydrocarbon geology,aimed at the requirements of exploration and engineering reform,quantitative logging evaluation method of Total Organic Carbon is built,which is applicable to different maturity of continental and marine shale.And quantitative well logging evaluation technology for complex mineral components is formed.Upon the conventional logging data,a new method of rock brittleness evaluation is put forward.And the method of logging classification for shale reservoir quality using multi-parameter weighting is established.Eventually the complementary technologies of logging evaluation for shale oil and gas reservoirs are formed.The above achievements have filled the domestic technological blank of logging evaluation of unconventional shale reservoirs and currently have been widely used in Qing 1 member in Gulong Sag of the Songliao Basin,and Longmaxi Formation and Qiongzhusi Formation in Weiyuan and Changning districts of the Sichuan Basin,which effectively guide the favorable fractured intervals selection of new exploration wells,new horizontal wells and old wells review in the related oilfields.

Key words: Shale oil and gas reservoirs, Well logging evaluation, Total organic carbon content, Mineral components, Rock brittleness, Reservoir quality

中图分类号: 

  • TE122.2+4

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