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Abstract
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Article Information:
Detect Adjacent Well by Analyzing Geomagnetic Anomalies
Su Zhang, Zhichuan Guan, Jianyun Wang and Yucai Shi
Corresponding Author: Zhichuan Guan
Submitted: August 02, 2013
Accepted: September 23, 2013
Published: March 20, 2014 |
Abstract:
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This study describes a method of determining the position of adjacent well by analyzing geomagnetic anomalies in the drilling. In the experiment, put a casing in the geomagnetic field respectively to simulate 3 conditions, which are vertical well, deviated well and horizontal well. Study the interference of regional geomagnetic caused by casing, summary the law of the regional geomagnetic field anomalies caused by the adjacent casing. Experimental results show that: magnetic intensity distortion caused by deviated well is similar to that caused by horizontal well, but the distortion is different from vertical well. The scope and amplitude of N and E component magnetic intensity distortion will increase with the increase of casing inclination, meanwhile the scope and amplitude of V component distortion will decrease and the distortion value changes from negative to positive to the southwest of adjacent well. Through the analysis of geomagnetic anomalies, the position of the adjacent wells could be determined.
Key words: Adjacent well, anti-collision, earth magnetic field, geomagnetic anomaly, relief well, well casing,
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Cite this Reference:
Su Zhang, Zhichuan Guan, Jianyun Wang and Yucai Shi, . Detect Adjacent Well by Analyzing Geomagnetic Anomalies. Research Journal of Applied Sciences, Engineering and Technology, (11): 2353-2361.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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