Page 139 - 《应用声学》2023年第3期

第 42 卷 第 3 期 Vol. 42, No. 3
2023 年 5 月 Journal of Applied Acoustics May, 2023

⋄ 研究报告 ⋄

超声脉冲窄带激励的水泥环第二界面探测方法 ∗

孙志峰 † 陈洪海 李 苏 陶爱华 刘西恩

(中海油田服务股份有限公司 北京 101149)

摘要：如何评价水泥环的第二界面固井质量一直是声波测井领域的世界性难题。该文利用有限元方法研究了
基于超声脉冲反射法的水泥环第二界面固井质量探测方法。数值模拟了不同声源脉冲宽度及不同声阻抗地层
对第二界面超声反射回波的影响。研究结果表明采用窄带的激励信号源可有效提高水泥环第二界面反射波回
波幅度，有望解决水泥环第二界面固井质量评价问题。制作了水泥环第二界面具有胶结缺陷的实验室样品及
大型固井质量刻度井，在此基础上开展了基于窄带超声脉冲激励的实验室及刻度井群实验研究。实验结果表
明满足水泥环第一界固井质量良好条件，采用窄带的超声脉冲回波技术可有效评价水泥环第二界面固井质量。
关键词：超声反射；窄带；第二界面固井质量；有限元；声波测井
中图法分类号: P631.52 文献标识码: A 文章编号: 1000-310X(2023)03-0577-08
DOI: 10.11684/j.issn.1000-310X.2023.03.016

The evaluation method about cement bonding quality of the second interface

based on ultrasonic pulse narrowband excitation

SUN Zhifeng CHEN Honghai LI Su TAO Aihua LIU Xi’en

(China Oilfield Services Limited, Beijing 101149, China)

Abstract: How to evaluate cement bonding quality of the second interface has been a worldwide problem in
acoustic logging field. This article researches measurement method of the second interface based on ultrasonic
pulse echo by using the finite element method. The influence of different bandwidth and different acoustic
impedance of formation on ultrasonic echo of the second interface is simulated numerically. The signal energy
of the second interface can be effectively improved with the narrowband signal, so cement bonding quality of
the second interface may be solved by this method. Laboratory samples with cement sheath defects at the
second interface and large cement bonding calibration wells are all fabricated. On this basis, laboratory and
calibration well tests are carried out. The test results show that when first interface of cement sheath is well
bonding, narrowband ultrasonic pulse echo technique can be used to evaluate cement bonding quality of the
second boundary.
Keywords: Ultrasonic pulse echo; Narrowband; Cement bonding quality of second interface; Finite element
analysis; Acoustic logging

2022-02-11 收稿; 2022-04-22 定稿
国家自然科学基金项目 (U21B2064, YJB19YF017, YJB22YF002)
∗
作者简介: 孙志峰 (1979– ), 男, 河北沧州人, 博士, 研究方向: 声波测井的数值模拟及数据处理方法研究工作。
通信作者 E-mail: sunzhf3@cnooc.com.cn
†