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2013 (Vol. 5, Issue: 07)
Article Information:

New and Modified Equations for Planning Two-Buildup Directional and Horizontal Wells

Sun Tengfei, Deli Gao and Hui Zhang
Corresponding Author:  Sun Tengfei 

Key words:  Build rate, directional and horizontal wells, tangent angle, trajectory design, two-buildup, ,
Vol. 5 , (07): 2309-2316
Submitted Accepted Published
April 27, 2012 June 01, 2012 March 11, 2013
Abstract:

Two-buildup directional and horizontal well is usually used for the type trajectory that the target zone is accurate but build rate is not. In the past and at present, the petroleum engineers use the Karlsson method and equations to design the two-buildup directional and horizontal well. But through rigid derivation and analysis, we have found some places that need to be improved. This study has put forward new and modified equations on the basis of Karlsson method. The new method considers the maximum and minimum build rates expected in the first and second curves and supposes that the upper and lower bound trajectory are all two-build up trajectory type. This study also has considered the difference of the maximum and minimum build rates expected in the second curve and the first curve. The new and modified method and equations are tested through two examples.
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  Cite this Reference:
Sun Tengfei, Deli Gao and Hui Zhang, 2013. New and Modified Equations for Planning Two-Buildup Directional and Horizontal Wells.  Research Journal of Applied Sciences, Engineering and Technology, 5(07): 2309-2316.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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