Page 33 - 应用声学2019年第2期

第 38 卷 第 2 期 Vol. 38, No. 2
2019 年 3 月 Journal of Applied Acoustics March, 2019

⋄ 研究报告 ⋄

基于纵波三维层析成像技术的压裂检测方法 *

王文文 1† 孟尚志 2 钱玉萍 1

(1 中海油田服务股份有限公司油田技术事业部 北京 101149)
(2 中联煤层气有限责任公司 北京 100011)

摘要 国内煤层气勘探由于煤层埋深浅，煤储层致密、压力低，均需压裂增产作业。而压裂效果与煤层气单井
增产效果密切相关，因而研究煤层压裂效果，建立评价指标，指导压裂设计至关重要。三维声波测井资料能够
获取井周轴向、径向以及环向速度变化信息，在压裂前后，利用三维层析成像处理技术，可以评价煤层气井压
裂效果。将该技术与传统声波技术和微地震监测结果相结合，能够直观判断煤层气储层压裂改造前后在纵横
向及环向的变化情况。
关键词 三维层析成像，煤层气，压裂检测，声波测井
中图法分类号: P313.1 文献标识码: A 文章编号: 1000-310X(2019)02-0179-07
DOI: 10.11684/j.issn.1000-310X.2019.02.005

Coalbed fracture detection based on compressional wave three-dimensional
tomographic imaging technique

WANG Wenwen 1 MENG Shangzhi 2 QIAN Yuping 1

(1 Oilfield Technology Department, China Oilfield Services Limited, Beijing 101149, China)
(2 China United Coalbed Methane Co., Ltd., Beijing 100011, China)

Abstract Domestic coalbed methane exploration always needs fracturing operations to increase production
due to its shallow buried depth, tightness and low pressure. Fracturing effect is closely related to the effect of
single well increasing production, so it is extremely important to research the fracturing effect, set up evaluation
index and guide design of fracturing. Three-dimensional acoustic logging data is able to obtain radial and axial
velocity variation information in well, and evaluate fracturing effect in coalbed methane well by using three-
dimensional tomographic imaging processing technology before and after fracturing. Combining this technology
with traditional acoustic wave technology and microseismic monitoring results, it is possible to visually judge
the changes in the longitudinal, lateral and circumferential directions before and after the coalbed methane
reservoir fracturing.
Key words Three-dimensional tomographic imaging processing, Coalbed methane, Fracture detection,
Acoustic logging

2018-06-28 收稿; 2018-10-15 定稿
中国海油石油集团公司 “ 煤层气 /页岩气 /致密砂岩气三气共采先导性试验研究” 资助项目
∗
作者简介: 王文文 (1983- ), 男, 河北衡水人, 硕士, 工程师, 研究方向: 测井解释。
† 通讯作者 E-mail: 331889981@qq.com