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《Acta Petrolei Sinica》 1988-01
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SIMULATION OF DIRECTIONAL WELL TRAJECTORIES WITH CUBIC SPLINE Technique

Du Chunchang (Southwesiern Petroleum Institute Nanchong)  
Cubic spline technique is used to simulate directional well trajectories in this paper. The method of using cubic spline interpolation to determine dire- ctional well trazectories is disscussed in detail. The coordinates of any point in a directional well trajectory can be calculated. The inclination and azimu- th between any two adjacent points in a. well trajectory can also be calcula- ted. The results obtained agree with field measured figures fairly well. This technique can be used in practical field probleus.
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