Page 228 - 《应用声学》2023年第2期

第 42 卷 第 2 期 Vol. 42, No. 2
2023 年 3 月 Journal of Applied Acoustics March, 2023

⋄ 研究报告 ⋄

方位偶极声波远探测技术研究与应用 ∗

晁永胜 1,2 李 超 3† 贺洪斌 3 许孝凯 1,2 任燕敏 1,2 纪祝华 1,2 曹雪砷 3

(1 中石化经纬有限公司地质测控技术研究院 青岛 266071)
(2 石大经纬产教融合研究院 青岛 266580)
(3 中国科学院声学研究所 声场声信息国家重点实验室 北京 100190)

摘要：偶极横波远探测测井技术是当前缝洞型和复杂储层油气勘探开发和评价不可缺少的技术手段。常规偶
极远探测技术受限于 180 方位的不确定性，难以判别缝洞等地质体的真实方位。采用双偶极错位发射多分量
◦
阵列接收研究偶极方位识别方法。首先以传统正交偶极模式获得地质体方位探测结果，再以 45 错位角发射
◦
偶极声波信号，通过多个邻近接收器的波形差的组合以及反射波在仪器孔径上的时间延迟来区分方位，进一
步压制伪像干扰获得地质体真实的方位成像结果。针对弱反射信号，在硬件上，研究了多分量有源接收器阵列
声系，有效提升了偶极声波信号信噪比，结合动态增益控制提升反射波幅度；研究了双偶极宽频发射器与多模
式发射技术，提高偶极发射功率，保证了偶极声波信号在地层中的远距离传播与反射。数值仿真与实际测井数
据表明，双偶极方位识别方法可行，有助于偶极横波远探测技术的进一步发展和应用。
关键词：偶极方位识别；双错位偶极；有源声波接收；宽频带偶极发射
中图法分类号: P631.5 文献标识码: A 文章编号: 1000-310X(2023)02-0416-11
DOI: 10.11684/j.issn.1000-310X.2023.02.026

Research and application of azimuth dipole acoustic remote detecting
technology

CHAO Yongsheng 1,2 LI Chao 3 HE Hongbin 3 XU Xiaokai 1,2 REN Yanmin 1,2
JI Zhuhua 1,2 CAO Xueshen 3

(1 GEO-MWD/LWD & Logging Research Institute, SINOPEC MATRIX Corp, Qingdao 266071, China)
(2 UPC-Matrix Research Institute on Industry-Education Integration, Qingdao 266580, China)
(3 State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China)

Abstract: Dipole shear wave remote detecting logging technology is an indispensable technical method for oil
and gas exploration, development and evaluation of fracture-cave and other complex reservoirs. Conventional
dipole remote detecting technology is limited by the uncertainty of 180-degree azimuth, and it is difficult to
distinguish the true azimuth of fracture-cave and other geological targets. In this research, the method of
dipole azimuth recognition is studied by using the multi-component array receiving of double dipole staggered
emission. First, the azimuth detection results of the geological body are obtained in the traditional cross-dipole
mode, and then the dipole acoustic signal is transmitted at a 45-degree dislocation angle. The true azimuth
is distinguished by the combination of the waveform differences of multiple adjacent receivers and the time
delay of the reflected wave on the instrument aperture. Finally, true azimuth imaging results of the geological
body is obtained by further suppressing the artifact interference. For the weak reflections, the acoustic system of

2022-09-06 收稿; 2022-11-28 定稿
中石化重大科研专项 (P21084), 中国科学院科研仪器设备研制项目 (GJJSTD20210008, YJKYYQ20200072), 国家重点研发计划项目
∗
(2022YFF0709704)
作者简介: 晁永胜 (1969– ), 男, 山东菏泽人, 硕士, 高级工程师, 研究方向: 声波测井方法与仪器研究。
通信作者 E-mail: chaoli@mail.ioa.ac.cn
†