A New Method of Evaluation Shale Brittleness Using X-ray Fluorescence Element Logging Data
-
摘要: 为了对页岩气藏的可压性进行评价,指导储层改造选层,研究了评价页岩地层脆性的方法。基于矿物组成与岩石力学性质之间的关系,根据页岩矿物组成来表征其脆性的思路,在测得页岩地层化学元素组成后,经过相关性分析,选取能代表砂质、泥质和钙质的元素,采用适当的计算方法来求取砂质、泥质和钙质含量,并建立基于矿物组成的页岩脆性评价方法。利用该方法对3口页岩气井的元素录井资料进行了分析,其结果和ECS测井解释结果之间有较好的线性关系;与X衍射矿物测试进行了对比,数值整体趋势一致,可对比性强,能够满足现场实时评价页岩脆性的要求。这表明利用元素录井资料对矿物组成进行建模来表征页岩脆性的方法是可行的,可为页岩气藏压裂改造选层提供一种手段。Abstract: In order to evaluate the fracability of shale gas reservoir and provide recommendation for fracturing,this paper made a study on evaluation method of shale brittleness.Based on relationship between mineral composition and rock mechanics properties,the way of using mineral composition to characterize its brittleness was considered.After measuring chemical elements composition of rock,making correlation analysis,selecting the elements which could respectively represent sandy,argillaceous and calcareous,using appropriate method to calculate the content of different minerals.Subsequently,the evaluation method of shale brittleness was established based on mineral composition.Applying this method to three wells of shale gas and performing element logging,comparing with ECS logging,a better linear relationship was presented.Compared with X-ray diffraction tests,the same trend was shown.It is able to meet the demands of realtime evaluation of shale brittleness.This indicated that the way of using element data to model minerals and thus characterizing shale brittleness was feasible,which provided a new means of technology for selecting favorable shale intervals to fracture.
-
Keywords:
- shale /
- brittleness /
- elements logging
-
-
[1] Curtis J B.Fractured shale-gas systems[J].AAPG Bulletin,2002,86(11):1921-1938.
[2] 张金川,薛会,张德明,等.页岩气及其成藏机理[J].现代地质,2003,17(4):466. Zhang Jinchuan,Xue Hui,Zhang Deming,et al.Shale gas and its accumulation mechanism[J].Geoscience,2003,17(4):466. [3] Montgomery S L,Jarvie D M,Bowker K A,et a1.Mississippian Barnet Shale,Fort Worth Basin,north-central Texas:gas shale play with multi-trillion cubic foot potential[J].AAPG Bulletin,2005,89(2):155-175.
[4] 聂海宽,唐玄,边瑞康.页岩气成藏控制因素及中国南方页岩气发育有利区预测[J].石油学报,2009,30(4):484-491. Nie Haikuan,Tang Xuan,Bian Ruikang.Controlling factors for shale gas accumulation and prediction of potential development area in shale gas reservoir of South China[J].Acta Petrolei Sinica,2009,30(4):484-491. [5] Bowker K A.Barnett Shale gas production,Fort Worth Basin:issues and discussion[J].AAPG Bulletin,2007,91(4):523-533.
[6] Burnaman Michael D,Xia Wenwu,Shelton John.Shale gas play screening and evaluation criteria[J].China Petroleum Exploration,2009,14(3):51-64.
[7] Jarvie D M,Hill R J,Ruble T E,et al.Unconventional shale gas systems:the Mississippian Barnett Shale of north central Texas as one model for thermogenic shale gas assessment[J].AAPG Bulletin,2007,91(4):475-499.
[8] Ross D J K,Bustin R M.Shale gas potential of the Lower Jurassic Gordondale Member,northeastern British Columbia,Canada[J].Bulletin of Canadian Petroleum Geology,2007,55(1):51-75.
[9] Leroueil S.Natural slopes and cuts:movement and failure mechanisms[J].Geotechnique,2001,51(3):197-243.
[10] 刘恩龙,沈珠江.岩土材料的脆性研究[J].岩石力学与工程学报,2005,24(19):3449-3453. Liu Enlong,Shen Zhujiang.Study on brittleness of geomaterials[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(19):3449-3453. [11] Ersoy A,Waller M D.Textural characterization of rocks[J].Engineering Geology,1995,39(3/4):123-136.
[12] Rickman R,Mullen M,Petre E,et al.A practical use of shale petrophysics for stimulation design optimization:all shale plays are not clones of the Barnett Shale.SPE 115258,2008.
[13] 朱根庆,何国贤,康永贵.X射线荧光录井资料基本解释方法[J].录井工程,2008,19(4):6-11. Zhu Genqing,He Guoxian,Kang Yonggui.The basic interpretation way for X ray fluorescence logging data[J].Mud Logging Engineering,2008,19(4):6-11. [14] 张新华,陆黄生,王志战.页岩气井场快速识别评价技术[J].石油天然气学报,2011,33(10):48-52. Zhang Xinhua,Lu Huangsheng,Wang Zhizhan.Rapid identification and evaluation of shale gas on wellsite[J].Journal of Oil and Gas Technology,2011,33(10):48-52. -
期刊类型引用(10)
1. 王博，吴媚，肖祖行，鲍静，张建军，张荔. 缝内暂堵二次转向主控因素及其影响规律. 断块油气田. 2025(03): 480-484 . 
百度学术
2. 江铭，邹清腾，肖壮，汪勇，葛婧楠，陈钊. 浅层页岩气井间压窜影响因素与防治优化. 石油实验地质. 2025(03): 693-704 . 百度学术
3. 李紫妍，陈军斌，左海龙，王庆，欧阳雯，林天，刘波，任大忠. 页岩储层水力裂缝和天然裂缝交互规律. 断块油气田. 2024(02): 232-240 . 百度学术
4. 尹帅，赵军辉，刘平，沈志成. 裂缝性储层天然缝与水力缝开启条件及扩展规律研究. 石油钻探技术. 2024(03): 98-105 . 本站查看
5. 宋兆辉. 树莓状聚合物纳微米封堵剂的制备及性能评价. 石油钻探技术. 2024(03): 84-90 . 本站查看
6. 刘善勇，尹彪，楼一珊，张艳. 粗糙裂缝内支撑剂运移与展布规律数值模拟. 石油钻探技术. 2024(04): 104-109 . 本站查看
7. 史小卫，孙麒涵，陈俊侠，林萌，吴会永，王洪建. 首山一矿水平井水力压裂应力阴影效应及裂缝演化机理. 能源与环保. 2024(08): 14-21 . 百度学术
8. 余绍志，纪国法. 基于水力压裂裂缝扩展规律的天然气开发应用. 能源与环保. 2024(08): 242-247+253 . 百度学术
9. 李德旗，刘春亭，朱炬辉，胥云，王荣，张俊成，吴凯，潘丹丹. 高闭合压力下深层页岩气促缝网强支撑压裂工艺. 石油钻采工艺. 2024(03): 336-345 . 百度学术
10. 杨亚东，邹龙庆，王一萱，朱静怡，李小刚，熊俊雅. 川南深层页岩气藏压裂裂缝导流能力影响因素分析. 特种油气藏. 2024(05): 162-167 . 百度学术
其他类型引用(1)
计量
- 文章访问数: 3593
- HTML全文浏览量: 51
- PDF下载量: 3391
- 被引次数: 11
下载:
