Page 142 - 《应该声学》2022年第2期

第 41 卷 第 2 期 Vol. 41, No. 2
2022 年 3 月 Journal of Applied Acoustics March, 2022

⋄ 研究报告 ⋄

随钻单极子声波测井模式优化及远探测 ∗

朱祖扬 1,2†

(1 页岩油气富集机理与有效开发国家重点实验室 北京 102206)
(2 中国石化石油工程技术研究院 北京 102206)

摘要：针对非均匀性地层地质力学评价和地质导向钻井的需要，研究了随钻单极子声波的方位特性和反射声
场特征，并研制了随钻声波测量装置。建立了不同方向速度模型井和反射声场模型，数值模拟了两个模型的单
极子声波传播特征，使用单极子声源发射和偏极子接收器接收的测量模式，分别获得了波速周向变化图和反
射波的方位特征。模拟结果表明，纵波对地层方位特性更容易提取和观测，反射波具有一定方位性。在水池里
开展了随钻单极子声波远探测实验，利用反射波能够准确测量到 1.00 m、3.00 m、5.00 m 和 7.00 m 的反射界面
距离，实验证明，在合适尺度范围内进行声波远探测是可行的。研究结果表明，随钻单极子声波测井技术在测
量模式上进行适当的改进，对测井数据进行适当的处理，则这项技术既可以用于近井壁地层的非均匀性分析，
又可以用于远井壁地层的界面探测，从而在随钻测井评价和钻井高效施工等方面发挥更大的作用。
关键词：随钻单极子声波测井；波速周向变化；方位特性；反射波；声波远探测
中图法分类号: P631.84 文献标识码: A 文章编号: 1000-310X(2022)02-0310-08
DOI: 10.11684/j.issn.1000-310X.2022.02.018

The logging mode optimization and remote detection performance of monopole

acoustic logging while drilling

ZHU Zuyang 1,2

(1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, China)
(2 Sinopec Research Institute of Petroleum Engineering, Beijing 102206, China)

Abstract: For inhomogeneous formation geomechanics evaluation and geosteering drilling, azimuthal and
refection wave field performance of monopole acoustic logging while drilling (LWD) is studied, and an acoustic
LWD device is developed. Establishing borehole model with different velocity at direction and refection wave
model, numerically simulating monopole acoustic propagation characteristics for the two models, monopole
acoustic source and eccentric receivers are used to get acoustic velocity variation around borehole and azimuthal
refection wave characteristics. The simulation result shows that the azimuthal performance of compressional
wave in formation is easier to extract and observe, furthermore, reflection wave is some sensitive to azimuth.
Some experiments are carried out in a water tank to check remote detection performance of monopole acoustic
LWD, which measuring the distance of reflection interface by reflection wave, the distance are set as 1 m,
3 m, 5 m and 7 m in different experiment, the experiment results show that it is feasibility to acoustic
remote detection in proper range scale. The research result shows that monopole acoustic LWD can be
used to evaluating inhomogeneous formation near borehole and remote detection of interface formation far from

2021-11-20 收稿; 2022-02-16 定稿
国家自然科学基金项目 (U19B6003), 中石化科技部基础前瞻项目 (P21074-1)
∗
作者简介: 朱祖扬 (1981– ), 男, 江西南昌人, 博士, 副研究员, 研究方向: 声波测井方法和随钻测井仪器研发。
† 通信作者 E-mail: zhuzuyang_2001@126.com