岩性油气藏 ›› 2018, Vol. 30 ›› Issue (3): 112–123.doi: 10.12108/yxyqc.20180313

• 技术方法 • 上一篇    下一篇

基于测井资料的页岩储层可压裂性评价新方法

翟文宝1, 李军1, 周英操2, 柳贡慧1,3, 黄涛1, 宋学锋1   

  1. 1. 中国石油大学(北京) 石油工程学院, 北京 102249;
    2. 中国石油集团工程技术研究院有限公司钻井工艺研究所, 北京 102206;
    3. 北京工业大学 机械工程与应用电子技术学院, 北京 100124
  • 收稿日期:2018-01-10 修回日期:2018-02-25 出版日期:2018-05-21 发布日期:2018-05-21
  • 通信作者: 李军(1971-),男,博士,教授,博士生导师,主要从事石油工程岩石力学方面的教学和科研工作。Email:lijunpaper@hotmail.com
  • 基金资助:
    国家自然科学基金面上项目“长水平段非均质页岩储层非均匀分簇射孔优化研究”（编号：51674272）、国家自然科学基金联合基金重点项目“页岩气水平井井筒完整性失效机理与控制方法”（编号：U1762211）和国家重大科技专项子课题“页岩气水平井分簇射孔完井优化新技术”（编号：2017ZX05009-003）联合资助

New evaluation method of shale reservoir fracability based on logging data

ZHAI Wenbao1, LI Jun1, ZHOU Yingcao2, LIU Gonghui1,3, HUANG Tao1, SONG Xuefeng1   

  1. 1. College of Petroleum Engineering, China University of Petroleum(Beijing), Beijing 102249, China;
    2. Engineering Technology R & D Company Limited, CNPC, Beijing 102206, China;
    3. College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
  • Received:2018-01-10 Revised:2018-02-25 Online:2018-05-21 Published:2018-05-21

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摘要： 影响页岩储层可压裂性的因素较多，目前难以建立连续且完整的页岩储层可压裂性评价方法。基于测井资料可以较连续、完整地获取地层信息的特点，在考虑页岩脆性指数、矿物组成、含气性、断裂韧性等因素对可压裂性影响的基础上，利用层次分析法建立长水平井段页岩储层可压裂性评价模型，并通过引入突变理论，形成一种新的页岩储层可压裂性评价方法。分别利用基于突变理论和层次分析法的可压裂性评价方法，对四川盆地威远地区的1口水平井进行可压裂性评价，并将评价结果与微地震监测的该井页岩储层压裂后裂缝的发育情况和依据测井资料进行的储层分类情况进行对比。结果表明，基于突变理论的11级压裂段可压裂性评价结果与依据测井资料的储层分类结果及微地震监测的压裂后有效压裂体积的分布结果均吻合较好。该研究成果可为威远地区压前评价以及提高增产改造效果等提供理论依据。

关键词: 火山岩, 岩体划分, 岩性旋回, 电性特征, 地震反射特征, 石炭系, 准噶尔盆地东部

Abstract: There are many factors that affect the fracability of shale reservoirs,so it is difficult to establish a continuous and complete evaluation method for shale reservoirfracability.Due to the advantage that we can obtain continuous and complete stratigraphic information from logging data,based on the influences of shale brittleness index,mineral composition,gas-bearing capability and fracture toughness on fracability,the fractability evaluation model of shale reservoirs in long horizontal well section was established by using analytic hierarchy process, and the catastrophe theory was introduced to form a new method for evaluating fracability of shale reservoirs.The fracability for a horizontal well in Weiyuan area of Sichuan Basin was respectively evaluated by the new method and analytic hierarchy process,and the evaluation results were compared with the actual fracture development of fractured shale reservoir from microseismic monitoring and the reservoir classification based on well logging data.The results show that the evaluation results of 11th level fracturing section based on catastrophe theory are in good agreement with the actual effective fracturing volume after fracturing and reservoir classification based on well logging data.The research results can provide theoretical basis for evaluation before fracturing and improvement of hydraulic fracturing stimulation in Weiyuan area.

Key words: volcanic rock, rock mass division, lithologic cycle, logging electrical characteristics, seismic reflection characteristics, Carboniferous, eastern Junggar Basin

中图分类号: 

  • TE377
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