公开(公告)号：US11725496B2

公开(公告)日：2023-08-15

申请号：US16206125

申请日：2018-11-30

Applicant: Pason Systems Corp.

Inventor： Choon-Sun James Ng ,  Daniel John Paslawski ,  Aaron Eddy

IPC: E21B44/04 ,  E21B19/06 ,  E21B45/00 ,  E21B49/00 ,  E21B3/02

CPC classification number: E21B44/04 ,  E21B3/022 ,  E21B19/06 ,  E21B45/00 ,  E21B49/00

Abstract: There are described methods, systems, and techniques for performing automated drilling of a well bore. The well bore is drilled according to one or more drilling parameter targets associated with one or more corresponding drilling parameters. A controlling drilling parameter of the one or more drilling parameters is determined to be outside a threshold window. In response to determining that a stringer has been encountered, one or more controlled drilling parameter targets of the one or more drilling parameter targets are updated. The controlled drilling parameter targets comprise a revolutions per minute (RPM) target and weight-on-bit (WOB) target.