随钻划眼采集模式的过套管声波测井数值模拟与实验研究  

Numerical simulation and experimental research of through casing sonic logging with redressing LWD acquisition mode

作　　者：林剑松 李盛清 刘忠华[3] 张聪慧 苏远大[1,2] 唐晓明 LIN JianSong;LI ShengQing;LIU ZhongHua;ZHANG CongHui;SU YuanDa;TANG XiaoMing(School of Geosciences,China University of Petroleum,East China,Qingdao 266580,China;China Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071,China;PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100083,China;Well Tech of China Oilfield Services Limited,Beijing 101149,China)

机构地区：[1]中国石油大学(华东)地球科学与技术学院,青岛266580 [2]青岛海洋科学与技术国家实验室海洋矿产资源评价与探测技术功能实验室,青岛266071 [3]中国石油勘探开发研究院,北京100083 [4]中海油服股份有限公司油田技术事业部,北京101149

出　　处：《地球物理学进展》2021年第6期2496-2502,共7页Progress in Geophysics

基　　金：国家自然科学基金(41804124,42074137,41821002);国家重点研发计划(2019YFC0605504);山东省自然科学基金(ZR2019BD039,ZR201911120382);山东省博士后创新项目(201901011);中石油重大科技项目(ZD2019-183-004);中国科学院战略性先导科技专项(XDA14020304,XDA14020302);中央高校基本科研业务费专项资金资助(20CX06077A)联合资助。

摘　　要：随钻测井在高温高压井和大斜度/水平井应用广泛,在起钻或下钻的划眼过程中采集套管井段的声波数据,开展水泥胶结评价和地层评价的需求增加,因此套管井中开展随钻声场机理研究愈发重要.本文基于套管井随钻声波的柱状分层模型,利用实轴积分法对不同水泥胶结和地层软硬情况的随钻波形进行数值模拟,并进行传播速度特征研究.通过理论分析给出了套管井中随钻测井的模式波类型、传播速度与水泥胶结和地层速度的关系.现场套管实验井的随钻声波数据结果与数值模拟结果有一致性.本文的研究结果表明随钻声波测井有望能解决套管井固井评价的工程问题和过套管的地层声速提取的储层评价问题.As logging while drilling is widely used in high temperature/high pressure wells and high deviated/horizontal well,the demand of cement evaluation and formation evaluation has increased with collecting LWD acoustic data of cased well during the redressing process of trip out or in.and that make it more and more important for research on the mechanism of LWD acoustic wave in cased well.In this paper,based on the cylindrical layered media of the LWD cased hole,the real-axis numeric integration method is used to simulate the waveform for different cementation and formation type,and study the propagation velocity characteristics.Analyses of the simulation results reveal the relationship between wave modes,wave propagation velocity and cementation,formation velocity.The test results of field cased well are consistent with the numerical simulation results.The research results in this paper show that the acoustic logging while drilling is expected to solve the engineering evaluation of cased well cementing evaluation and the reservoir evaluation of formation velocity through casing.

关 键 词：随钻声波测井 固井质量评价 过套管评价 

分 类 号：P631[天文地球—地质矿产勘探]