庄春喜^1,2,,
李杨虎^1,2,
孔凡童^1,2,
陈鸣^3,,,
张聪慧⁴,
苏远大^1,2,
唐晓明^1,2
1. 中国石油大学(华东)地球科学与技术学院, 山东青岛 266580
2. 中国石油大学(华东)深层油气重点实验室, 山东青岛 266580
3. 中海石油(中国)有限公司湛江分公司, 广东湛江 524057
4. 中海油田股份有限公司油田技术事业部, 北京 101149

基金项目: 国家自然基金（41604109，41804124，41774138）、中国科学院战略性先导科技专项（XDA14020304，XDA14020302）和中央高校基本科研业务费专项资金（18CX02065A，27R1801025A）联合资助


详细信息

作者简介: 庄春喜, 男, 1982年生, 讲师, 主要从事声波测井数据处理方法研究.E-mail:zhuangchunxi@sina.com

通讯作者: 陈鸣, 男, 1982年生, 高级工程师, 主要从事海上测井方法及应用研究.E-mail:chenming4@cnooc.com.cn

中图分类号: P631

收稿日期:2019-04-07
修回日期:2019-08-12
上线日期:2019-11-05

Formation permeability estimation using Stoneley waves from logging while drilling: theory, method, and application

ZHUANG ChunXi^1,2,,
LI YangHu^1,2,
KONG FanTong^1,2,
CHEN Ming^3,,,
ZHANG CongHui⁴,
SU YuanDa^1,2,
TANG XiaoMing^1,2
1. School of Geosciences, China University of petroleum, Shandong Qingdao 266580, China
2. Key Laboratory of Deep Oil and Gas, China University of Petroleum, Shandong Qingdao 266580, China
3. CNOOC(China) Limited Zhanjiang Branch Company, Guangdong Zhanjiang 524057, China
4. Well Tech of China Oilfield Services Limited, Beijing 101149, China


More Information

Corresponding author: CHEN Ming,E-mail:chenming4@cnooc.com.cn

MSC: P631

--> Received Date: 07 April 2019
Revised Date: 12 August 2019
Available Online: 05 November 2019


摘要
摘要:针对孔隙渗透地层的随钻声波测井问题，用Biot-Rosenbaum孔隙弹性波测井理论推导了孔隙地层的随钻井孔声场表达式.据此考察了随钻条件下井中斯通利波的波形、相速度频散、衰减以及相速度对渗透率的灵敏度，并与电缆测井中的情况进行了对比.数值模拟结果表明，随钻条件下斯通利波对地层渗透率的灵敏度相对于电缆测井有明显增加，更有利于用来反演地层渗透率.为快捷有效地处理现场测井数据和反演计算，采用简化Biot-Rosenbaum理论和钻铤的等效模型，对随钻斯通利波的频移和时滞进行联合反演.结果表明，随钻斯通利波反演的渗透率与核磁渗透率和岩心覆压测试渗透率符合较好，并且与常规测井曲线所反映的储层性质具有较好的一致性，证明了利用随钻斯通利波评价地层渗透率的有效性.
关键词: 渗透率/
随钻斯通利波/
简化Biot-Rosenbaum理论/
等效仪器模型/
频移和时滞

Abstract:Based on Biot-Rosenbaum theory for acoustic logging in a poroelastic formation, we investigate the Logging While Drilling (LWD) acoustic wavefield and calculate waveforms, phase-velocity dispersion, attenuation, and sensitivity to permeability for the LWD Stoneley waves. The results show that the sensitivity of the LWD Stoneley waves to formation permeability increases significantly compared with its counterpart in the wireline condition, which favors the inversion of formation permeability using LWD Stoneley waves. To facilitate the inversion calculation in field data processing, we utilize the simplified Biot-Rosenbaum theory and the equivalent LWD tool model and formulate a joint inversion method using Stoneley wave frequency shift and travel-time delay data. The results reveal that the permeability calculated from the LWD Stoneley waves is in good agreement with both the permeability measured by NMR (Nuclear Magnetic Resonance) and the core permeability measured with overburden pressure. The result is also consistent with the reservoir properties from conventional logging curves. Results of this study demonstrate the validity of permeability estimation using LWD Stoneley waves.
Key words:Permeability/
LWD Stoneley waves/
Simplified Biot-Rosenbaum theory/
Equivalent-tool model/
Frequency shift and traveltime delay



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