远探测声波测井处理解释方法发展与展望  

Development and prospect of acoustic reflection imaging logging processing and interpretation method

作　　者：李宁[1] 刘鹏 武宏亮[1] 李雨生 张文豪 王克文[1] 冯周[1] 王浩[1] LI Ning;LIU Peng;WU Hongliang;LI Yusheng;ZHANG Wenhao;WANG Kewen;FENG Zhou;WANG Hao(PetroChina Research Institute of Petroleum Exploration&Development,Beijing 100083,China;China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中国石油大学(北京),北京102249

出　　处：《石油勘探与开发》2024年第4期731-742,共12页Petroleum Exploration and Development

基　　金：中国石油科技项目“高精度深探测成像测井系列处理技术研究”(2021DJ4002);中国石油科技项目“斯通利波测井探测器及刻度关键技术研究”(2022DJ3908)。

摘　　要：远探测声波测井技术(亦称反射声波测井技术)能够从井中探测及评价井外数十米范围内的裂缝、洞穴和断层等地质异常反射体,大大拓展了测井技术的应用范围。在回顾该技术发展历程的同时,重点介绍了远探测声波测井处理解释核心方法、软件和现场应用效果。结合目前油田实际生产需求和现有技术面临的挑战,指出远探测声波测井处理解释方法有5个最重要的发展方向:继目前利用声波时差和密度通过反射系数褶积进行“测井约束下的地震反演”后,突破实现井下实测反射波和地面地震反射波正反演关系的直接建立,同时开展页岩储层裂缝成像、压裂效果评价、随钻地质导向研究及远探测声波测井仪器革新。Acoustic reflection imaging logging technology can detect and evaluate the development of reflection anomalies,such as fractures,caves and faults,within a range of tens of meters from the wellbore,greatly expanding the application scope of well logging technology.This article reviews the development history of the technology and focuses on introducing key methods,software,and on-site applications of acoustic reflection imaging logging technology.Based on the analyses of major challenges faced by existing technologies,and in conjunction with the practical production requirements of oilfields,the further development directions of acoustic reflection imaging logging are proposed.Following the current approach that utilizes the reflection coefficients,derived from the computation of acoustic slowness and density,to perform seismic inversion constrained by well logging,the next frontier is to directly establish the forward and inverse relationships between the downhole measured reflection waves and the surface seismic reflection waves.It is essential to advance research in imaging of fractures within shale reservoirs,the assessment of hydraulic fracturing effectiveness,the study of geosteering while drilling,and the innovation in instruments of acoustic reflection imaging logging technology.

关 键 词：远探测声波测井 单极纵波 偶极横波 水平井远探测 三维成像 井震融合 CIFLog软件 

分 类 号：TE122.3[石油与天然气工程—油气勘探]