METHOD, SYSTEM, AND MEDIUM FOR CONTROLLING RATE OF PENETRATION OF A DRILL BIT

    公开(公告)号:US20170328193A1

    公开(公告)日:2017-11-16

    申请号:US15592562

    申请日:2017-05-11

    Abstract: Methods, systems, and techniques for controlling the rate of penetration of a drill bit use drilling parameter measurements read from drilling parameter sensors to evaluate control loops, with the output of one of the control loops at any given time being used by an automatic driller to control the rate of penetration. For each of the drilling parameters, the automatic driller reads a drilling parameter measurement, determines an error measurement that represents a difference between a drilling parameter setpoint and the drilling parameter measurement, and from the error measurement determines an output signal proportional to the rate of penetration of the drill bit. The output signal of one of the control loops is subsequently selected and used to control the rate of penetration.

    METHOD, SYSTEM AND COMPUTER-READABLE MEDIUM FOR AUTOMATICALLY CONTROLLING A DRILLING OPERATION

    公开(公告)号:US20190032466A1

    公开(公告)日:2019-01-31

    申请号:US16023117

    申请日:2018-06-29

    Abstract: There is described a method for automatically controlling a drilling operation. The method comprises obtaining a recording of one or more controlled drilling parameters adjusted, during a first drilling operation, in response to one or more controlling drilling parameters. The method further comprises, during a second drilling operation subsequent to the first drilling operation, monitoring the one or more controlling drilling parameters. The method further comprises, during the second drilling operation, automatically adjusting the one or more controlled drilling parameters in response to the monitored one or more controlling drilling parameters by using the recording of the one or more controlled drilling parameters. Thus, by recording a driller's instructions once (during a recording phase) and automatically replaying them during successive playback phases, drilling is made more efficient and simpler.

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