公开(公告)号：WO2021231059A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/028533

申请日：2021-04-22

Applicant: WEATHERFORD TECHNOLOGY HOLDINGS, LLC

Inventor： SACHTLEBEN, Benjamin ,  GEISSLER, David ,  HEBEBRAND, Christina ,  RUEHMANN, Rainer

IPC: E21B19/16

Abstract: A method of making-up or breaking-out tubular string components can include threading tubulars with each other while a camera obtains images of the tubulars, outputting image data from the camera to an image processor that detects optical flow vector fields from the image data, the optical flow vector fields representing displacements of the respective tubulars during the threading, and controlling the threading in response to a difference between the displacements. Another method can include positioning a camera so that the camera simultaneously observes at least two tubulars, threading the tubulars with each other, outputting image data from the camera to an image processor, the image processor detecting optical flow vector fields from the image data, the optical flow vector fields representing displacements of the respective tubulars during the threading, and controlling the threading in response to the image processor detecting the optical flow vector fields.

公开(公告)号：WO2019084188A1

公开(公告)日：2019-05-02

申请号：PCT/US2018/057381

申请日：2018-10-24

Applicant: WEATHERFORD TECHNOLOGY HOLDINGS, LLC

Inventor： RUEHMANN, Rainer ,  GEISSLER, David ,  SACHTLEBEN, Benjamin ,  HELMS, Martin ,  THIEMANN, Bjoern ,  WIEDECKE, Michael

IPC: E21B19/16 ,  B23P19/06 ,  B25B23/14 ,  E21B21/02

Abstract: Methods and systems for connecting threaded tubulars are presented. One example method generally includes monitoring relative rotation between a backup tong and a tubular clamped in the backup tong to determine slippage of the backup tong.

公开(公告)号：WO2021231034A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/027880

申请日：2021-04-19

Applicant: WEATHERFORD TECHNOLOGY HOLDINGS, LLC

Inventor： RUEHMANN, Rainer ,  GEISSLER, David ,  SACHTLEBEN, Benjamin ,  HEBEBRAND, Christina

IPC: E21B19/16 ,  F16L15/00 ,  B64C2201/123 ,  E21B17/042 ,  E21B19/165 ,  G06T2207/30108 ,  G06T2207/30204 ,  G06T7/0004

Abstract: A method of making-up tubular string components can include inputting to an image processor image data output from at least one camera (28), the image processor in response detecting positions of a tubular (14) and a mark (30) on another tubular (20), threading the tubulars with each other while inputting position data from the image processor to a controller, and the controller terminating the threading in response to the position of the mark relative to the position of the first tubular being within a predetermined range. Another method of making-up tubular string components can include, in response to inputting image data to an image processor, the image processor detecting longitudinal positions of two tubulars, threading the tubulars with each other, and a controller terminating the threading in response to the longitudinal position of one tubular relative to the longitudinal position of the other tubular being within a predetermined range.