-
公开(公告)号：US11280437B2
公开(公告)日：2022-03-22
申请号：US16473210
申请日：2017-12-22
发明人： Luke A. Stack , Aaron W. Logan , Justin C. Logan , Patrick R. Derkacz , Gavin Gaw-Wae Lee , Hasan Alper Hepguvendik , Mojtaba Kazemi Miraki , Daniel W. Ahmoye , Kurtis K. L. West , Angelica J. B. Francoeur
摘要： One or more seals may be provided in a gap sub to prevent the ingress of drilling fluid into an insulating gap between a male member of the gap sub and a female member of the gap sub. A first seal may comprise an internal gap sub seal provided near the tip of the male member of the gap sub. A second seal may comprise an external gap sub seal provided near the tip of the female member of the gap sub. The first and second seals may comprise non-conductive materials. The first and second seals may each comprise one or more O-rings. The first and second seals may comprise one or more lips, protrusions or flanges to engage the male and/or female members of the gap sub for maintaining contact with the male and/or female members during deformation of the gap sub.
-
公开(公告)号：US10287871B2
公开(公告)日：2019-05-14
申请号：US15851397
申请日：2017-12-21
摘要： An assembly for use in subsurface drilling includes a downhole probe supported by a locking mechanism with a bore of a drill string section. The probe comprises a first spider and a second spider at the uphole and downhole sections of the probe. The locking mechanism secures the probes in the bore against axial and rotational movement relative the drill string section.
-
公开(公告)号：US10156102B2
公开(公告)日：2018-12-18
申请号：US15306040
申请日：2015-05-08
摘要： A gap sub has electrically-conductive parts held together by electrical insulators which engage in channels formed in the parts. The electrical insulators hold the parts in a spaced-apart electrically-insulated relationship. In some embodiments, the electrical insulators are removable to allow separation of the parts. An insulating oil or other fluid may fill the gap.
-
公开(公告)号：US09976415B2
公开(公告)日：2018-05-22
申请号：US15167814
申请日：2016-05-27
CPC分类号： E21B47/123 , E21B47/121
摘要： A downhole apparatus for measuring drilling fluid characteristics. The downhole apparatus may comprise one or more sensors located within a housing. The sensors may include one or more of an imaging device, a resistivity/conductivity sensor, a temperature sensor, a pressure sensor, a flowmeter and a fluid density sensor. The downhole apparatus may also include a controller for receiving measurements and/or determining optimal electromagnetic telemetry transmission settings. The downhole apparatus may also comprise a transmitter for transmitting the measurements and/or the optimal electromagnetic transmission settings. The downhole apparatus may be operated to determine optimal transmission settings for an electromagnetic telemetry system. Optimal transmission settings may include settings relating to one or more of frequency, amplitude, voltage, current, and power.
-
公开(公告)号：US09850722B2
公开(公告)日：2017-12-26
申请号：US14441131
申请日：2012-12-03
IPC分类号： E21B17/16 , E21B47/01 , E21B17/10 , E21B23/01 , E21B23/02 , E21B47/00 , E21B7/00 , E21B47/12 , E21B17/00 , E21B47/18
CPC分类号： E21B17/1078 , E21B7/00 , E21B17/00 , E21B17/003 , E21B17/16 , E21B23/01 , E21B23/02 , E21B47/00 , E21B47/01 , E21B47/011 , E21B47/122 , E21B47/123 , E21B47/18
摘要： A downhole probe is adapted to be supported in drill string sections having different internal diameters with the use of a set of interchangeable centralizers. Each centralizer is dimensioned to snugly receive the downhole probe and to bear against the bore wall of a drill-string section. Interchangeable axial supports such as spiders may also be provided in a set. The downhole probe may comprise a slick body. As drilling progresses the downhole probe may be adapted to be received in drill string sections of varying diameters.
-
公开(公告)号：US10422921B2
公开(公告)日：2019-09-24
申请号：US16113735
申请日：2018-08-27
发明人： Aaron W. Logan , Patrick R. Derkacz , Justin C. Logan , Barry Daniel Buternowsky , Mojtaba Kazemi Miraki
摘要： A downhole system comprises a main sensor, such as a gamma sensor, and a backup sensor. The backup sensor may be of a different type from the main sensor. In some embodiments the backup sensor is a high reliability sensor that may have a different sensitivity from the main sensor. The system operates both the main and backup sensors and generates calibration data for the backup sensor. If the main sensor fails the calibration data may be applied to process data from the backup sensor to yield an estimate of the data that the main sensor would have yielded if it had remained operational. The calibration data may compensate for temperature variations and/or temporal drift, for example.
-
公开(公告)号：US10280741B2
公开(公告)日：2019-05-07
申请号：US16163168
申请日：2018-10-17
发明人： Patrick R. Derkacz , Aaron William Logan , Justin C. Logan , Jili Liu , David A. Switzer , Robert Harris , Barry Daniel Buternowsky , Kurtis West
摘要： Data is communicated from sensors at a downhole location near a drill bit to surface equipment. Communication to the surface equipment may be direct or may pass through a series of nodes. The nodes in some cases are intelligently reconfigured to achieve desired data rates, achieve power management goals, and/or compensate for failed nodes.
-
公开(公告)号：US09988855B2
公开(公告)日：2018-06-05
申请号：US15586161
申请日：2017-05-03
发明人： Aaron W. Logan , Daniel W. Ahmoye , David A. Switzer , Justin C. Logan , Patrick R. Derkacz , Mojtaba Kazemi Miraki
CPC分类号： E21B17/006 , E21B17/003 , E21B17/028 , E21B47/122
摘要： An electromagnetic telemetry signal generating assembly comprises a first section of drill string, a second section of drill string, a gap sub configured to insulate the first section from the second section, and a power source configured to provide a first voltage to a control circuit. The control circuit is configured to drive a second voltage between the sections of drill string. The gap sub provides a gap of at least 12 inches (30 cm). The second voltage may be different than the first voltage.
-
公开(公告)号：US09874083B2
公开(公告)日：2018-01-23
申请号：US14650511
申请日：2013-12-18
IPC分类号： E21B47/00 , E21B47/01 , E21B33/038 , E21B47/12 , H01R13/523
CPC分类号： E21B47/01 , E21B33/0385 , E21B47/12 , H01R13/523
摘要： Disclosed are downhole probes in which electrical interconnections between different modules are achieved without wiring harnesses. Modules may be coupled to one another and/or to bulkheads in the probe my couplings that provide substantially rigid couplings. The couplings may be configured to connect together only in one orientation. Electrical connectors may be fixed relative to components of the couplings so that the electrical connectors are automatically aligned for connection by the couplings.
-
公开(公告)号：US09670771B2
公开(公告)日：2017-06-06
申请号：US14900063
申请日：2014-06-20
发明人： Aaron W. Logan , Daniel W. Ahmoye , David A. Switzer , Justin C. Logan , Patrick R. Derkacz , Mojtaba Kazemi Miraki
CPC分类号： E21B17/006 , E21B17/003 , E21B17/028 , E21B47/122
摘要： An electromagnetic telemetry signal generating assembly comprises a first section of drill string, a second section of drill string, a gap sub configured to insulate the first section from the second section, and a power source configured to provide a first voltage to a control circuit. The control circuit is configured to drive a second voltage between the sections of drill string. The gap sub provides a gap of at least 12 inches (30 cm). The second voltage may be different than the first voltage.
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.016 秒)
