发明名称 METHOD OF AUTOMATICALLY CONTROLLING THE TRAJECTORY OF A DRILLED WELL
摘要 Steering behavior model can include build rate and/or turn rate equations to model bottom-hole assembly behavior. Build and/or turn rate equations can be calibrated by adjusting model parameters thereof to minimize any variance between actual response 118 and estimated response produced for an interval of the well. Estimated position and orientation 104 of a bottom-hole assembly along a subsequent interval can be generated by inputting subsequent tool settings into the calibrated steering behavior model. Estimated position and orientation 104 can be compared to a well plan 106 with a controller 108 which determines a corrective action 110. Corrective action 110 can be converted from a build and/or turn rate to a set of recommended tool settings 114 by using an inverse application 112 of the steering behavior model. As additional data 118 becomes available, steering behavior model can be further calibrated 102 through iteration.
申请公布号 CA2635331(C) 申请公布日期 2012.03.20
申请号 CA20082635331 申请日期 2008.06.19
申请人 SCHLUMBERGER CANADA LIMITED 发明人 PIROVOLOU, DIMITRIOS K.
分类号 E21B44/00;E21B7/06 主分类号 E21B44/00
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