特殊录井在相国寺构造地下储气库钻探中的应用  

Application of special mud logging technology in the drilling and exploration of Xiangguosi underground gas storage

作　　者：刘达贵 田蒙 刘兴 杨琳 何林蔚 孟森淼 LIU Dagui;TIAN Meng;LIU Xing;YANG Lin;HE Linwei;MENG Senmiao(Geological Exploration&Development Research Institute,CNPC Chuanqing Drilling Engineering Company Limited,Chengdu,Sichuan 610051,China)

机构地区：[1]中国石油川庆钻探工程有限公司地质勘探开发研究院

出　　处：《录井工程》2023年第1期35-39,共5页Mud Logging Engineering

基　　金：川庆钻探工程有限公司地质勘探开发研究院2021年科研计划项目“元素与伽马能谱录井技术在相国寺构造区域栖霞组-黄龙组应用研究”(编号:CQ2021B-F-9-1)。

摘　　要：为了解决相国寺地下储气库目的层(黄龙组)固井、取心卡层难题,以相国寺构造栖霞组-黄龙组自然伽马能谱录井和X射线荧光元素录井为研究对象,分析了自然伽马能谱录井与自然伽马能谱测井、X射线荧光元素录井与地层元素俘获测井的相关性,建立了相国寺构造栖霞组-黄龙组自然伽马能谱录井、X射线荧光元素录井层位判别图板及识别标准,用于判别层位和卡准固井、取心层位。研究结果表明(:1)自然伽马能谱录井与自然伽马能谱测井相关系数为0.88,X射线荧光元素录井与地层元素俘获测井相关系数为0.92,能够依据自然伽马能谱录井和X射线荧光元素录井对层位进行判别;(2)自然伽马能谱录井值栖霞组为76~87 nGy/h、梁山组为90~122 nGy/h、黄龙组为82~96 nGy/h,创建的层位判别图板聚类效果好,根据判别图板建立了层位识别标准;(3)Al元素和Mg元素对栖霞组、梁山组及黄龙组3个层位最为敏感、区分度较高,根据Al元素和Mg元素含量建立的层位判别图板和识别标准,能够满足录井现场栖霞组、梁山组和黄龙组层位判别。应用自然伽马能谱录井和X射线荧光元素录井建立的层位判别图板和识别标准,能够解决相国寺构造地下储气库目的层卡层难题。In order to solve the problems of cementing and coring in the target layer(Huanglong Formation)of Xiangguosi underground gas storage,the natural gamma spectrum mud logging and XRF element logging of Qixia⁃Huanglong Formation in Xiangguosi structure are taken as the research objects.The correlation between natural gamma spectrum mud logging and natural gamma spectrum logging,XRF element mud logging and formation element capture logging is analyzed,and the natural gamma spectrum mud logging of Qixia⁃Huanglong Formation is established.The XRF element mud logging horizon identification chart and identification standard are used for horizon identification and accurate cementing and coring horizon.The research results show that:(1)the correlation coefficient between natural gamma ray spectrum mud logging and natural gamma ray spectrum logging is 0.88,and the correlation coefficient between XRF element logging and formation element capture logging is 0.92,which can be used to horizon identification;(2)The natural gamma ray spectrum logging Qixia Formation is 76~87 nGy/h,Liangshan Formation 90~122 nGy/h,Huanglong Formation 82~96 nGy/h,with good clustering effect of the created horizon identification chart,and according to the chart,the horizon identification standard is established;(3)Al and Mg elements are the most sensitive and highly distinguishable to the three horizons of Qixia,Liangshan and Huanglong Formation.The horizon identification chart and identification standard established by the content of Al and Mg elements can meet the horizon identification of these three formations at the logging site.The conclusion is that the layer identification chart and identification standard established by natural gamma ray spectrum mud logging and XRF element mud logging can solve the problem of the target layer of the underground gas storage in Xiangguosi structure.

关 键 词：相国寺 栖霞组-黄龙组 特殊录井 识别标准 地下储气库 

分 类 号：TE132.1[石油与天然气工程—油气勘探]