公开(公告)号：US20180340408A1

公开(公告)日：2018-11-29

申请号：US15565411

申请日：2016-12-20

Applicant: Landmark Graphics Corporation

Inventor： Robello SAMUEL ,  Zhengchun LIU ,  Jeffrey YARUS ,  Jin FEI

IPC: E21B44/02 ,  G06F19/00

CPC classification number: E21B44/02 ,  E21B7/046 ,  E21B47/022 ,  G06F19/00

Abstract: A method may include drilling a deviated wellbore penetrating a subterranean formation according to bottom hole assembly parameters and surface parameters; collecting real-time formation data during drilling; updating a model of the subterranean formation based on the real-time formation data and deriving formation properties therefrom; collecting survey data corresponding to a location of a drill bit in the subterranean formation; deriving a target well path for the drilling based on the model of the subterranean formation; deriving a series of trajectory well paths based on the formation properties, the survey data, the bottom hole assembly parameters, and the surface parameters and uncertainties associated therewith; deriving an actual well path based on the series of trajectory well paths; deriving a deviation between the target well path and the actual well path; and adjusting the bottom hole assembly parameters and the surface parameters to maintain the deviation below a threshold.