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Abstract
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Article Information:
A Study on Numerical Simulation of CBM Pinnate Horizontal Well for Near-Wellbore Seepage
Tingting Jiang, Xiujuan Yang, Xiangzhen Yan, Yunhong Ding, Xin Wang and Tongtao Wang
Corresponding Author: Xiujuan Yang
Submitted: April 25, 2012
Accepted: May 16, 2012
Published: November 15, 2012 |
Abstract:
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The motive of the study is to establish a near-wellbore seepage model of Coalbed Methane
(CBM) pinnate horizontal well according to the potential superposition principle and the equivalent well
diameter model. The corresponding calculation program has been achieved based on C++ computer
language to analyze the effects of branch distribution, branch position and length on isobar distribution of
CBM pinnate horizontal well. The results show that the isobar distribution of CBM pinnate horizontal well
is closely related to its own wellbore configuration. When the two branches are at the same side, the isobars
incline to the branch side. When the branch position moves from the heel end to the toe end along the main
borehole, the morphology of isobars transforms from oval to slant triangle. With the increase of branch
length, the influence on the morphology of isobars increases gradually.
Key words: Branch parameter , coalbed methane, near-wellbore seepage, numerical simulation, pinnate horizontal well, ,
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Cite this Reference:
Tingting Jiang, Xiujuan Yang, Xiangzhen Yan, Yunhong Ding, Xin Wang and Tongtao Wang, . A Study on Numerical Simulation of CBM Pinnate Horizontal Well for Near-Wellbore Seepage. Research Journal of Applied Sciences, Engineering and Technology, (22): 4791-4797.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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