Wellbore Trajectory Design And Control With Double Increasing Deviation Type

As a kind of main source of energy,oil and gas have been the backbone of the worldwide industrial revolution.With the growing demand for oil and gas and the continuous improvement of the level of the exploration,the geologic environment petroleum drilling is facing is more and more complicated.Wellbore trajectory design is not only the foundation of all drilling engineering,but also the precondition of trajectory prediction and well path control.So this article conducts the research of wellbore trajectory design.This article combines previous research achievements,expounds the principles of the wellbore trajectory and the calculation of the deviational survey of the path and the control of the path.Then the article takes a Well as an example,combined with the geological conditions of the well,employing eleven sections of design trajectory of the“ hold –build –hold –build –build –build –build –hold –build –drop –hold ”.And the result is reasonable.In the end,in order to solve the problem of the control of path while drilling,the article takes the well for example again and expounds the calculation of azimuth angle of twist,tool face setting angle and reactive torque angle of a mud motor..Thus,the research problems have been resolved.