随钻四极子声波测井仪的设计及试验

刘西恩, 孙志峰, 仇傲, 李杰, 罗博, 彭凯旋, 罗瑜林 - 石油钻探技术, 2022 - syzt.com.cn
针对随钻单极子声波测井仪器无法随钻测量软地层横波速度的问题, 设计了一种随钻四极子声波
测井仪. 该测井仪由Drilog® 随钻测井系统, 接收电路, 扶正器, 接收声系, 隔声体 …

[HTML][HTML] 横向各向同性地层中随钻声波测井模式波分析

李希强, 陈浩, 何晓, 王秀明, 丛健生 - 地球物理学报, 2013 - html.rhhz.net
针对横向各向同性地层随钻声波测井模型, 通过模式分析的方法, 考察了快速地层和慢速地层井
孔内随钻单极子, 偶极子和四极子声源激发的斯通利波, 弯曲波和螺旋波的相速度频散和激发 …

A method to determine the strike of interface outside of borehole by monopole borehole acoustic reflections

H Wang, G Tao - Journal of Petroleum Science and Engineering, 2015 - Elsevier
We use a 3-dimensional finite difference method (3DFD) to study acoustic reflection
wavefields generated by a monopole-logging tool in a fluid-filled borehole surrounded by …

The wavefield of acoustic logging in a cased-hole with a single casing–Part I: a monopole tool

H Wang, M Fehler - Geophysical Journal International, 2018 - academic.oup.com
The bonding quality of the seal formed by the cement or collapse material between casing
and formation rock is critical for the hydraulic isolation of reservoir layers with shallow …

[PDF][PDF] 犞犜犐地层随钻四极子声波测井数值研究

王瑞甲, 乔文孝 - 地球物理学报, 2015 - geophy.cn
摘要数值计算了四极子声源在含钻铤竖直向横向各向同性(VTI) 地层井孔中产生的各种模式波的
频散曲线, 激发幅度以及对各地层, 钻铤参数的灵敏度, 合成了四极子阵列波形, 研究了快 …

Wavefield simulation and analysis with the finite-element method for acoustic logging while drilling in horizontal and deviated wells

H Wang, G Tao, K Zhang - Geophysics, 2013 - library.seg.org
We developed a frequency-domain finite-element method (FFEM) in conjunction with a
complex-frequency-shifted perfectly matched layer (CFS-PML) boundary to effectively study …

Acoustic fields for monopole logging while drilling with an eccentric collar

Y Ji, X He, H Chen, X Wang, H Zhang - Geophysics, 2021 - library.seg.org
The acoustic problem of an eccentric drill collar in a fluid-filled borehole has been of interest
in the field of acoustic logging while drilling (ALWD) in recent years. To reduce the effects of …

Investigation of the high-frequency wavefield of an off-center monopole acoustic logging-while-drilling tool

H Wang, G Tao, MC Fehler - Geophysics, 2015 - library.seg.org
During logging-while-drilling (LWD) operations, complex drill string movements and the
weight of the drill pipe often lead to a measurement tool that is not centralized. Therefore …

[图书][B] Borehole acoustic logging-theory and methods

H Wang, MN Toksöz, MC Fehler - 2020 - Springer
This book covers the principles, historical development, and applications of many acoustic
logging methods, including acoustic logging-while-drilling and cased-hole logging methods …

Delineating a cased borehole in unconsolidated formations using dipole acoustic data from a nearby well

XH Gu, XM Tang, YD Su - Geophysics, 2021 - library.seg.org
ABSTRACT A potential application for single-well acoustic imaging is the detection of an
existing cased borehole in the vicinity of the well being drilled, which is important for drilling …