基于三电极系救援井与事故井连通探测系统

doi:10.7623/syxb201306020

石油学报 ›› 2013, Vol. 34 ›› Issue (6): 1181-1188.DOI: 10.7623/syxb201306020

基于三电极系救援井与事故井连通探测系统

李翠, 高德利, 刁斌斌, 梁奇敏, 吴志永

中国石油大学石油工程教育部重点实验室北京 102249

收稿日期:2013-04-16 修回日期:2013-10-04 出版日期:2013-11-25 发布日期:2013-10-13
通讯作者: 李翠
作者简介:李翠，女，1984年12月生，2007年毕业于曲阜师范大学光信息科学与技术专业，现为中国石油大学（北京）博士研究生，主要从事油气井力学与控制工程方面的研究。Email：licui1219@163.com
基金资助:
国家自然科学基金创新研究群体项目（No.51221003）和国家重大科技专项（2011ZX05009-005）资助。

A detection system based on three-electrode array for connecting a relief well to failure well

LI Cui, GAO Deli, DIAO Binbin, LIANG Qimin, WU Zhiyong

Key Laboratory for Petroleum Engineering of Ministry of Education, China University of Petroleum, Beijing 102249, China

Received:2013-04-16 Revised:2013-10-04 Online:2013-11-25 Published:2013-10-13

摘要/Abstract

摘要：

通过调研救援井与事故井连通探测系统工作原理，分析了三电极系注入地层的低频交变电流在地层及事故井套管中的传播与衰减规律，建立了事故井套管上聚集电流产生的交变磁场空间分布模型，得到了救援井与事故井间距和相对方位的计算方法。通过数值模拟与试验验证，将三电极系应用于救援井与事故井连通探测系统，提高了系统测距范围和探测精度；通过对比基于单电极救援井与事故井连通探测系统，基于三电极系的探测系统对探管灵敏度的要求更低，更有利于在实际工况中的应用，为中国自主研发救援井与事故井连通导向工具提供理论支持。

关键词: 救援井, 事故井, 探测系统, 三电极系, 交变磁场

Abstract:

According to working principles of the detection system for making relief well connect to well blowout, transmission and attenuation laws were analyzed the low-frequency alternating current induced by three-electrode array in formations and casing of a failure well and built up a dimensional distribution model of the alternating magnetic field generated by current accumulated on casing of a blowout well. Finally, a method to calculate the distance and relative orientation between a relief well and blowout well was obtained. The field implementation of these results validated that the application of three-electrode array to the detection and connection system for making relief well connect to well blowout can greatly extend the range measurement scope of the system. Compared with the detection system based on monoelectrod array, the system based on three-electrode array requires a much lower sensibility of probe. Thus, this system is more feasible for practical operation conditions and its detection accuracy for the relative space position between the relief well and blowout well can meet the orientated drilling engineering demand of a relief well. Therefore, these research results can provide theoretical support to independently developing a connection orientation tool of the relief well with the blowout well.

Key words: relief well, failure well, detection system, three-electrode array, alternating magnetic field

中图分类号:

TE34

李翠, 高德利, 刁斌斌, 梁奇敏, 吴志永. 基于三电极系救援井与事故井连通探测系统[J]. 石油学报, 2013, 34(6): 1181-1188.

LI Cui, GAO Deli, DIAO Binbin, LIANG Qimin, WU Zhiyong. A detection system based on three-electrode array for connecting a relief well to failure well[J]. ACTA PETROLEI SINICA, 2013, 34(6): 1181-1188.

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基于三电极系救援井与事故井连通探测系统

A detection system based on three-electrode array for connecting a relief well to failure well

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