公开(公告)号：WO2019125494A1

公开(公告)日：2019-06-27

申请号：PCT/US2017/068299

申请日：2017-12-22

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： ZHANG, Shang ,  TANG, Hewei ,  ZHANG, Feifei ,  VENUGOPAL, Suresh ,  MCCORMACK, Patrick

IPC: E21B47/10 ,  E21B45/00 ,  E21B41/00

Abstract: Embodiments of the subject technology provide for receiving real-time drilling data comprising different drilling parameters measured during a drilling operation. The subject technology calculates a kick detection parameter based at least in part on the different drilling parameters. The subject technology detects an occurrence of a kick during the drilling operation when the kick detection parameter deviates from a trend formed by previously calculated kick detection parameters. Further, the subject technology activates an alarm during the drilling operation in response to detected occurrence of the kick to facilitate preventing a blowout.

公开(公告)号：WO2019094059A1

公开(公告)日：2019-05-16

申请号：PCT/US2018/019227

申请日：2018-02-22

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： TANG, Hewei ,  ZHANG, Shang ,  ZHANG, Feifei ,  VENUGOPAL, Suresh ,  MAO, Youli

IPC: G05B23/02 ,  E21B49/00

Abstract: An abnormal trend detection system for detecting one or more hazards may provide for a safe and effective drilling operation as any of the one or more hazards may be avoided. Several indicators may be defined including a first, second, third and fourth indicator. The indicators are used to identify in a trend analysis abnormal trends. One or more thresholds may be defined. When a trend analysis indicates that a threshold has been reached or exceeded an alarm may be triggered, a drilling operation may be altered or a combination thereof.