分布式光纤压裂监测技术研究及应用  

Study and application of distributed fiber optic fracturing monitoring technology

作　　者：王立歆[1] 路智勇[2] 杨心超 陈占国[1] 杨小慧[1] 程磊磊 WANG Lixin;LU Zhiyong;YANG Xinchao;CHEN Zhanguo;YANG Xiaohui;CHENG Leilei(Geophysical Research Institute Co.,Ltd.,SINOPEC,Nanjing 211103,China;Jianghan Oilfield Company,SINOPEC,Qianjiang 433123,China;School of Polytechnic Institute,Zhejiang University,Hangzhou 310015,China)

机构地区：[1]中国石化石油物探技术研究院有限公司,江苏南京211103 [2]中国石化江汉油田分公司,湖北潜江433123 [3]浙江大学工程师学院,浙江杭州310015

出　　处：《断块油气田》2024年第6期1039-1046,共8页Fault-Block Oil & Gas Field

基　　金：国家自然科学基金企业创新发展联合基金项目“海相深层油气富集机理与关键工程技术基础研究”(U19B6003)。

摘　　要：随着页岩油气等非常规油气勘探开发走向深层以及日趋精细化,微地震等传统压裂监测手段愈发无法满足压裂效果评价的精度要求。作为分布式光纤传感(DFOS)技术的最新研究进展,分布式光纤声波传感(DAS)近年来成为国内外压裂监测方向的研究热点。文中介绍了井下光缆布设、光缆深度标定、DAS信号处理、压裂期间DAS响应提取和解释的方法,并结合涪陵地区某页岩气井组的套管外光纤压裂监测实例,展示了DAS技术给非常规油气水力压裂监测带来的新视角和新认识,为我国压裂监测新技术的发展和推广应用提供参考。With the deepening and gradual refinement of unconventional oil and gas exploration and development such as shale oil and gas etc.,traditional fracturing monitoring methods such as microseismic monitoring are increasingly unable to meet the accuracy requirements of fracturing effect evaluation.In recent years,as the latest research progress of distributed fiber optic sensing(DFOS),distributed acoustic sensing(DAS)has become a research hotspot of fracture monitoring at home and abroad.This paper introduces the methods of downhole optical cable deployment,optical cable depth calibration,DAS signal processing and DAS response extraction and interpretation during fracturing,and then demonstrates the new prospective and understanding brought by DAS technology to unconventional oil and gas hydraulic fracturing monitoring combined with an example of out-of-casing fiber optic fracturing monitoring of a shale gas well group in Fuling area,providing reference for the development and application of new fracturing monitoring technology in China.

关 键 词：水力压裂 分布式光纤声波传感 压裂监测 页岩油气 

分 类 号：TE132.2[石油与天然气工程—油气勘探]