复杂地层岩石力学参数实时求取方法——以塔里木盆地巴楚隆起为例  

The Real-time Calculation Methods of Rock MechanicsParameters in Complex Strata:a Case Study of the Bachu Uplift in Tarim Basin

作　　者：罗发强[1] 王志战 张元春[2,3] 张俊 金拥军[4] 廖东良[2,3] LUO Fa-qiang;WANG Zhi-zhan;ZHANG Yuan-chun;ZHANG Jun;JIN Yong-jun;LIAO Dong-liang(Research Institute of Petroleum Engineering of Sinopec Northwest Oil Field Branch,Urumqi 830011,China;State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development,Beijing 100101,China;Sinopec Research Institute of Petroleum Engineering,Beijing 100101,China;SINOPEC Huadong Oilfield Service Corporation,Yangzhou 225000,China)

机构地区：[1]中国石化西北油田分公司工程院,乌鲁木齐830011 [2]页岩油气富集机理与有效开发国家重点实验室,北京100101 [3]中国石化石油工程技术研究院测录井研究所,北京100101 [4]中石化华东石油工程有限公司录井分公司,扬州225000

出　　处：《科学技术与工程》2020年第17期6842-6847,共6页Science Technology and Engineering

基　　金：国家科技重大专项(2016ZX05021-2);中国石化重大项目(P17049-4);西北油田分公司战略合作项目(34400007-17-ZC0607-0059)。

摘　　要：非常规油气、干热岩、超深井等领域的钻完井工程对岩石力学服务的及时性与准确性提出了迫切需求,基于矿物及干酪根等岩石骨架组成成分具有固定的岩石物理及岩石力学特性,通过低成本、低风险、高实时性、高采样率的岩石成分录井技术开展岩石力学参数求取方法研究,以偶极子阵列声波计算岩石力学参数的模型作正演,确定通过矿物计算岩石力学参数的可行性,然后以组成矿物的元素成分直接构建岩石力学参数,并对两种方法进行对比。653个复杂岩性数据点,正演法计算的杨氏弹性模量、泊松比的平均相对误差分别为16.3%、9.8%;直接法计算的杨氏弹性模量、泊松比的平均相对误差分别为10.0%、6.8%。结果表明,通过元素直接构建的岩石力学参数具有更高的精度,在岩性相对简单的地区应用效果更好。Well drilling and well completion engineering in the fields as unconventional oil and gas,hot dry rock,ultra deep well and so on have proposed urgent demands for the timeliness and accuracy of rock mechanics services.Based on the constant feature of rock physical or rock mechanical parameter of rock skeleton compositions such as mineral and kerogen,the rock mechanics parameters calculating methods were studied through the rock composition surface logging technology.This technology had such advantages as low cost,low risk,high timeliness and high sampling rate.The rock mechanics parameters calculation methods of dipole array acoustic were taken to well logging do forward modeling to determine the feasibility of rock mechanics parameters calculation through mineral components,and then the mineral elements was taken to construct the rock mechanics parameters directly.These two methods were compared.The average relative errors of young s elastic modulus and poisson s ratio of 653 complex lithology data points was calculated by forward modeling method and they were respectively 16.3%and 9.8%,while the average relative errors of Young s modulus and Poisson s ratio calculated by direct method were respectively 10.0%and 6.8%.The results show that the rock mechanics parameters directly constructed by the elements have higher precision and better application effect in the area of relatively simple lithology.

关 键 词：岩石力学参数 元素录井 实时求取 偶极子声波测井 复杂岩性 

分 类 号：TE321[石油与天然气工程—油气田开发工程]