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《Fault-Block Oil & Gas Field》 2007-05
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Several problems on application of minimum curvature method

Bai Dongqing(Engineering Technology Research Institute,Liaohe Petroleum Exploration Bureau,Panjin 124010,China).  
Minimum curvature method is always used in directional well path design,horizontal well path design and clinometers calculation.If the section is a circular arc in the spatial slanting plane,the circular arc is the extremely reasonable bore hole path curve for slide drilling in minimum curvature method.The formulas of floor projection length are the approximate formulas so that they already did not suit the computer programming computation in formulas of minimum curvature method.This article proposes that the precise formula of floor projection length may use the numerical integration to calculate specifically.This article also proposes the precise formulas of the deviation rate and the azimuth rate on the random point of section,and reorganizes the parameter computation flow of the minimum curvature method.
【CateGory Index】: TE22
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