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公开(公告)号：US11649720B2
公开(公告)日：2023-05-16
申请号：US17661422
申请日：2022-04-29
发明人： Aaron W. Logan , David A. Switzer , Jili Liu , Justin C. Logan , Mingdong Xu
CPC分类号： E21B47/13 , E21B7/04 , E21B47/00 , E21B47/12 , E21B47/14 , E21B47/18 , H04B3/54 , H04B2203/5458 , H04B2203/5475
摘要： A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.
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公开(公告)号：US11213989B2
公开(公告)日：2022-01-04
申请号：US16473226
申请日：2017-12-21
IPC分类号： B29C48/09 , B29C48/88 , E21B47/01 , E21B17/00 , E21B17/10 , E21B47/13 , B29C61/02 , B29C48/32 , B29C48/00
摘要： A downhole probe of a drilling rig has a probe sleeve for protecting the downhole probe. The probe sleeve may be made of a metal or a polymer such as polyphenylene sulfide. The probe sleeve may be heat-shrinkable to provide a tight fit between the downhole probe and the probe sleeve. The probe sleeve may include one or more protrusions shaped to engage a centralizer surrounding at least part of the downhole probe. The one or more protrusions may be arranged to prevent rotation of the centralizer relative to the probe sleeve. The probe sleeve may be made using a modified extrusion process and may include reinforcement to add strength to weld-lines along the length of the probe sleeve. The protrusions may also be used as reinforcement.
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公开(公告)号：US11105159B2
公开(公告)日：2021-08-31
申请号：US15752737
申请日：2016-08-12
发明人： Luke A. Stack , Aaron W. Logan , Justin C. Logan , Mojtaba Kazemi Miraki , Patrick R. Derkacz , Gavin Gaw-wae Lee , Hasan Alper Hepguvendik , Daniel W. Ahmoye , Angelica J. B. Francoeur
IPC分类号： E21B17/00 , H01B3/12 , F16L25/01 , E21B17/02 , E21B17/042
摘要： A gap sub assembly for electromagnetic telemetry used in downhole drilling. The gap sub comprises a female part comprising a female mating section and a male part comprising a male mating section. The male mating section is matingly received within the female mating section and electrically isolated therefrom. One or more electrically insulating bodies secure the male part axially and torsionally relative to the female part. The electrically insulating bodies also electrically isolate the male part from the female part. The electrically insulating bodies can be installed through apertures in the female part or at least some of the electrically insulating bodies can be installed before the male mating section is inserted into the female mating section. The electrically insulating bodies can be held in place on the male mating section using a retention apparatus such as a ring, a scarf, pods or an adhesive.
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公开(公告)号：US11008858B2
公开(公告)日：2021-05-18
申请号：US16475177
申请日：2017-12-07
摘要： A fluid pressure pulse generator apparatus for a telemetry tool comprising a stator and a rotor. The stator comprises a stator body and a plurality of radially extending stator projections spaced around the stator body and the spaced stator projections define stator flow channels extending therebetween. The rotor comprises a rotor body and a plurality of radially extending rotor projections spaced around the rotor body. The rotor projections are axially adjacent the stator projections and the rotor is rotatable relative to the stator such that the rotor projections move in and out of fluid communication with the stator flow channels to create fluid pressure pulses in fluid flowing through the stator flow channels. At least one of the rotor projections and at least one of the stator projections has a standard outer diameter. At least one of the rotor projections and/or at least one of the stator projections has a reduced outer diameter. The reduced outer diameter rotor and/or stator projections provide bypass channels for flow of fluid and allow for generation of a pattern of different fluid pressure pulses.
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公开(公告)号：US10954781B2
公开(公告)日：2021-03-23
申请号：US16066031
申请日：2017-01-27
发明人： Aaron W. Logan , Justin C. Logan , Barry D. Buternowsky , Steven D. McLawchlin , David A. Switzer , Kurtis Kenneth Lee West
摘要： A method for establishing downlink telemetry communication to a downhole system involves placing into a drillstring a telemetry transcoder, and advancing the drillstring so the telemetry transcoder is below the surface. The method then transmits downlink EM telemetry signals from surface equipment. These signals are received at the telemetry transcoder which retransmits the signals as mud pulse signals. The mud pulse signals are received at the downhole system.
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公开(公告)号：US10662754B2
公开(公告)日：2020-05-26
申请号：US14903111
申请日：2014-07-04
发明人： Aaron W. Logan , Justin C. Logan
摘要： Apparatus for directional drilling allows an uphole section of drill string to be rotated while maintaining a desired orientation of a bent section of the drill string. In some embodiments, clutches above and below the bent section are selectively operated to rotate the bent section to a desired orientation. Reducing transmissions may reduce the rotation rate of the bent section.
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87.发明授权公开(公告)号：US10513892B2
公开(公告)日：2019-12-24
申请号：US15836207
申请日：2017-12-08
IPC分类号： E21B17/043 , E21B47/01 , E21B47/024 , E21B7/06 , E21B17/10 , E21B17/00 , E21B17/042
摘要： Adjustment of the angle of a bent sub or other steering feature in a drill string relative to a reference angle of a downhole sensor is facilitated by a rotatable coupling between the bent sub and the sensor. The rotatable coupling may be rotated to align the high side with a reference indicium and locked at the set angle. Rows of ceramic balls retained in circumferential channels may be provided to permit rotation while carrying tensile and compressional forces. Calibration of the sensor is facilitated and opportunities for certain measurement errors are eliminated. An embodiment provides a mechanism for locking the rotatable coupling at a desired angle. The embodiment comprises a ring with teeth that engage a downhole portion of the coupling and depressions that engage an uphole portion of the coupling.
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公开(公告)号：US10473804B2
公开(公告)日：2019-11-12
申请号：US15878750
申请日：2018-01-24
摘要： A seal and seal assembly for a fluid pressure pulse generating tool. The seal comprises an annular seal section comprising an internal sealing surface and an external sealing surface; and an annular heel section. The seal assembly comprises a seal assembly housing with a longitudinally extending bore therethrough for receiving a driveshaft of the tool and the seal enclosed by the seal assembly housing and configured to surround a portion of the driveshaft. The internal sealing surface of the seal is configured to be in sealing contact with the driveshaft and the external sealing surface of the seal is configured to be in sealing contact with an internal surface of the seal assembly housing. The annular heel section of the seal is configured to provide an interference fit with the driveshaft or with the internal surface of the seal assembly housing.
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公开(公告)号：US10301931B2
公开(公告)日：2019-05-28
申请号：US15320014
申请日：2015-05-08
发明人： Patrick R. Derkacz , Aaron William Logan , Justin C. Logan , Kurtis West , Jili (Jerry) Liu , Barry D. Buternowsky
摘要： A downhole system provides a data interface to a first downhole tool such as a steerable rotary tool. The data interface uses a close proximity data connection such as a connection between inductive loops or coils or a direct wired or optical connection. The interface provides data to a second downhole tool in a drill string section adjacent to the first downhole tool. In some embodiments data is passed to a third downhole tool that includes a telemetry transmitter. The third downhole tool may comprise a MWD (measurement while drilling) tool.
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90.发明授权公开(公告)号：US10301891B2
公开(公告)日：2019-05-28
申请号：US15306044
申请日：2015-05-08
IPC分类号： E21B3/04 , E21B19/16 , E21B17/042
摘要： A jig and method useful for coupling and/or uncoupling drill string sections. In some embodiments, the jig comprises a body having an outer surface for engaging a torqueing tool and a cavity extending from a first end to a second end of the body and an engagement means at the first end of the body. The engagement means may be dimensioned to non-rotationally engage an outer surface of a first end of a drill string section and the cavity may be sized to fit about a drill string section.
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