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公开(公告)号：US20210301640A1
公开(公告)日：2021-09-30
申请号：US17201449
申请日：2021-03-15
Applicant: Schlumberger Technology Corporation
Inventor： Benjamin Peter Jeffryes
Abstract: A proportional integral derivative (PID) controller implements control over a drilling system based on an integral term and a proportional term. The integral term is the integral of an operating drilling fluid pressure compared to a target drilling fluid pressure. The proportional term is the difference between an operating weight on bit and a target weight on bit. The sum of the proportional term and the integral term is multiplied by a controller parameter to determine a surface rate of penetration. A drill pipe lowering rate may be changed based on the determined surface rate of penetration, and the process may repeat in an iterative cycle until the integral term is reduced to an acceptable degree.
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公开(公告)号：US20210131258A1
公开(公告)日：2021-05-06
申请号：US17085224
申请日：2020-10-30
Applicant: Schlumberger Technology Corporation
Inventor： Nathaniel Wicks , Jian Wu , Benjamin Peter Jeffryes
Abstract: Methods and apparatus pertaining to scaling of the proportional gain and the integral gain in PI controllers of an autodriller based on drilling context. For example, a proportional gain and an integral gain are each determined for utilization by a PI controller of an autodriller controlling operation of equipment to be utilized for a drilling operation to drill a borehole into a subterranean formation. During the drilling operation, the integral gain is updated in real-time utilizing current values of drilling parameters that change with respect to time.
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公开(公告)号：US10975680B2
公开(公告)日：2021-04-13
申请号：US15569047
申请日：2016-04-28
Applicant: Schlumberger Technology Corporation
Inventor： Benjamin Peter Jeffryes , Samba Ba
Abstract: A system and method for operating a mud motor in a wellbore. The method includes running the mud motor into the wellbore. A threshold rate of a pressure increase over time is selected. A rate of a pressure increase over time is measured across the mud motor in the wellbore. A flow rate of a fluid being pumped into the wellbore is varied when the measured rate is greater than or equal to the threshold rate.
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公开(公告)号：US20210055747A1
公开(公告)日：2021-02-25
申请号：US17092692
申请日：2020-11-09
Applicant: Schlumberger Technology Corporation
Inventor： Benjamin Peter Jeffryes , John Cook , Steven Antony Gahlings
Abstract: A method for changing a set point of a system where period of a dominant resonance of the system is determined, a change profile for the set point change is processed; a time period for the set point change based on the period of the dominant resonance in order to minimize excitation of the dominant resonance is also processed; and the set point change is actioned according to the processed change profile and the time period.
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公开(公告)号：US10831218B2
公开(公告)日：2020-11-10
申请号：US16564936
申请日：2019-09-09
Applicant: Schlumberger Technology Corporation
Inventor： Benjamin Peter Jeffryes , John Cook , Steven Antony Gahlings
Abstract: A method for changing a set point of a system where period of a dominant resonance of the system is determined, a change profile for the set point change is processed; a time period for the set point change based on the period of the dominant resonance in order to minimize excitation of the dominant resonance is also processed; and the set point change is actioned according to the processed change profile and the time period.
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Patent Agency Ranking
公开(公告)号：US20200318472A1
公开(公告)日：2020-10-08
申请号：US16907894
申请日：2020-06-22
Applicant: Schlumberger Technology Corporation
Inventor： Benjamin Peter Jeffryes , Nathaniel Wicks
Abstract: A method and autodriller for drilling a wellbore with a drill rig by rotating a drillstring and a drill bit with a drill rig drive system; applying an initial weight of the drillstring on the drill rig WOB; measuring drill rig properties to derive an anticipated drill bit rotation speed; and changing the weight of the drillstring on the drill rig WOB so that a corresponding change to the downhole weight on the drill bit occurs approximately simultaneously with a change in the anticipated drill bit rotation speed.
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公开(公告)号：US20200284138A1
公开(公告)日：2020-09-10
申请号：US16807991
申请日：2020-03-03
Applicant: Schlumberger Technology Corporation
Inventor： Adam Ian Bowler , Mauro Caresta , Benjamin Peter Jeffryes
Abstract: Changes to the vibrational frequencies of a drill string or BHA are monitored for prognostic health monitoring purposes. When one or more orders of resonance frequencies deviate from a baseline frequency, the magnitude of the deviation, and possibly the rate of deviation, is evaluated. When the deviation exceeds a threshold value, an alert is triggered. The alert may be triggered by downhole processing of the vibration data and conveyed to an operator to allow changes in operational parameters or removal of the component from the wellbore. The alert may instead be triggered by post-run processing of stored and dumped data, that can be used to evaluate whether the tool can be re-run, or whether it should be inspected, repaired, or scrapped.
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公开(公告)号：US20200157930A1
公开(公告)日：2020-05-21
申请号：US16194028
申请日：2018-11-16
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Benjamin Peter Jeffryes , Adam Ian Bowler
Abstract: Embodiments of the present disclosure relate to a tangible, non-transitory, computer-readable medium that stores instructions executable by one or more processors, in which the instructions cause the one or more processors to determine a threshold value associated with an axial acceleration oscillation amplitude at a drill bit, in which the drill bit is a part of a drilling system. The instructions further cause the one or more processors to receive an operating parameter value of the drilling system, compare the operating parameter value with the threshold value, and adjust an operation of the drilling system in response to comparing the operating parameter value with the threshold value.
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公开(公告)号：US20200003046A1
公开(公告)日：2020-01-02
申请号：US16483164
申请日：2017-02-02
Applicant: Schlumberger Technology Corporation
Inventor： Shunfeng Zheng , Benjamin Peter Jeffryes , Mochammad Faisal Wingky
Abstract: Apparatus and methods pertaining to a processing system operable to determine a change to an operation of a well construction system based on an indication of a quality of transmitted communication between downhole equipment of the well construction system in a wellbore and surface communication equipment of the well construction system transmitted during the operation, a projected effect of the operation on future communication between the downhole equipment and the surface communication equipment, downhole data related to one or more conditions in the wellbore, or a combination thereof. The processing system is operable to cause the change to the operation of the well construction system to be implemented.
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公开(公告)号：US10422188B2
公开(公告)日：2019-09-24
申请号：US14983234
申请日：2015-12-29
Applicant: Schlumberger Technology Corporation
Inventor： Shunfeng Zheng , Benjamin Peter Jeffryes , Christopher C. Bogath , Gokturk Tunc , Jacques Orban
Abstract: Pipes, drill strings including pipes, and methods for use on a drilling rig. The method includes obtaining pipe data for individual drill pipes of a drill string, obtaining a well trajectory for a well, obtaining one or more drilling measurements to be used when drilling the well, planning a first drill string based on the pipe data, the well trajectory, and the one or more drilling measurements, predicting an aging of the individual drill pipes in the first drill string while drilling the well using the first drill string, determining that a risk of failure of one or more individual pipes in the first drill string is unacceptable based on the aging of the individual pipes; and planning a second drill string in response to determining that the risk of failure is unacceptable in the first drill string.
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