螺线管随钻测距导向系统

doi:10.7623/syxb201106021

石油学报 ›› 2011, Vol. 32 ›› Issue (6): 1061-1066.DOI: 10.7623/syxb201106021

螺线管随钻测距导向系统

刁斌斌高德利

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:2011-04-28 修回日期:2011-08-27 出版日期:2011-11-25 发布日期:2012-01-17
通讯作者: 刁斌斌
作者简介:刁斌斌，男，1983年5月生，2008年获中国石油大学（北京）硕士学位，现为中国石油大学（北京）在读博士研究生，主要从事油气井力学与控制工程研究。
基金资助:
国家科技重大专项(2009ZX05009-005)“复杂结构井优化设计与控制关键技术”资助。

A solenoid ranging guidance system while drilling

DIAO Binbin GAO Deli

Received:2011-04-28 Revised:2011-08-27 Online:2011-11-25 Published:2012-01-17

摘要/Abstract

摘要：

螺线管随钻测距导向系统是一种邻井距离随钻探测的前沿技术，可用于精细控制蒸汽辅助重力泄油（SAGD）双水平井的井眼轨迹。螺线管随钻测距导向系统主要包括螺线管短节、传感器组和地面测距计算软件。把通电螺线管短节看作磁偶极子，得到了通电螺线管短节远场磁场分布规律；分别给出了两口水平井平行、会聚/发散和异面时的测距导向算法，这些算法不仅可以用来计算SAGD双水平井的间距和相对方位，而且可以用来确定这两口水平井会聚/发散及异面的程度。对螺线管随钻测距导向系统的测距导向算法进行的算例验证和分析表明，螺线管随钻测距导向系统测距导向算法的计算精度可以满足实际工程的需求,具有直接探测邻井距离的技术优势，避免了累积误差的产生,可以用来引导SAGD双水平井的钻进。

关键词: 螺线管, 双水平井, 邻井距离, 平行, 会聚/发散, 异面

Abstract:

A solenoid ranging guidance system while drilling is an advanced technique for surveying the distance between a well being drilled and nearby wells, it can be applied to accurately controlling well tracks of twin SAGD horizontal wells. The solenoid ranging guidance system while drilling includes mainly a solenoid sub, a sensor package and a surface ranging calculation software. The magnetic field distribution of the energized solenoid sub can be obtained by using the solenoid sub as magnetic dipoles, which gives ranging and guidance algorithms of two horizontal wells, respectively, on conditions that the two horizontal wells are either parallel, converging/diverging, or skew. These algorithms can be used not only in calculating a distance and relative orientation from a SAGD injector well to the producer but also in determining the convergence/divergence and skewness of two horizontal wells. The present paper took some calculation examples to analyze and test ranging and guidance algorithms of the solenoid ranging guidance system while drilling. The result shows that the calculation accuracy of ranging and guidance algorithms of the solenoid ranging guidance system while drilling can meet the requirements of practical projects and the solenoid ranging guidance system while drilling has an advantage to directly measure the distance between two adjacent wells without any perceivable accumulative errors, therefore, the system can be utilized in drilling twin parallel horizontal SAGD wells.

Key words: solenoid, twin horizontal wells, adjacent well distance, parallel, convergence/divergence, skewness

刁斌斌高德利. 螺线管随钻测距导向系统[J]. 石油学报, 2011, 32(6): 1061-1066.

DIAO Binbin GAO Deli. A solenoid ranging guidance system while drilling[J]. Editorial office of ACTA PETROLEI SINICA, 2011, 32(6): 1061-1066.

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螺线管随钻测距导向系统

A solenoid ranging guidance system while drilling

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