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公开(公告)号：US12071836B2
公开(公告)日：2024-08-27
申请号：US18508696
申请日：2023-11-14
IPC分类号： E21B43/12
CPC分类号： E21B43/121
摘要： An electrically operated catcher mechanism that is part of a lubricator and catcher unit used in conjunction with a bypass plunger in an oil or gas well include an electrically operated mechanism to move between the catch and release positions. The electrically operated catcher mechanism includes a cam rotated by a motor which causes the device to move between catch and release positions.
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公开(公告)号：US12065903B1
公开(公告)日：2024-08-20
申请号：US18128784
申请日：2023-03-30
发明人： Garrett S. Boyd , Darrell Mitchum
CPC分类号： E21B34/025 , E21B34/142
摘要： A lubricator and plunger catcher used in conjunction with an oil or gas well includes a manifold positioned between the wellhead and the plunger catcher. The manifold includes a plunger passageway that extends from the bottom of the manifold to the top of the manifold, with the plunger catcher being mounted to the top of the manifold. The manifold also includes a production passageway through which oil or gas leaving the wellhead is routed. A choke mechanism for at least partially blocking the production passageway is provided on the manifold to selectively vary the volume of the oil or gas leaving the wellhead that is routed through the plunger catcher. This, in turn, can selectively vary a force imparted to a plunger by the oil or gas leaving the wellhead to ensure the plunger is fully seated in the catcher when it arrives at the wellhead.
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公开(公告)号：US20240183253A1
公开(公告)日：2024-06-06
申请号：US18441640
申请日：2024-02-14
发明人： Garrett S. Boyd , Mitchell A. Boyd
IPC分类号： E21B43/12 , E21B34/08 , F04B47/12 , G06F15/16 , G06F16/00 , G06F16/10 , G06F16/11 , G06F16/13 , G06F16/14 , G06F16/176 , G06F16/178 , G06F16/18 , G06F16/182 , H04L67/1095
CPC分类号： E21B43/123 , E21B34/08 , E21B43/121 , F04B47/12 , G06F15/16 , G06F16/00 , G06F16/10 , G06F16/122 , G06F16/128 , G06F16/13 , G06F16/14 , G06F16/176 , G06F16/178 , G06F16/182 , G06F16/1873 , H04L67/1095 , Y10T137/7855
摘要： A bypass plunger includes a unitary or one-piece hollow body-and-valve cage, which retains a dart valve within the valve cage portion of the hollow body using a threaded retaining nut that is secured to the hollow body by crimple detents. A series of helical grooves surround the central portion of the outer surface of the hollow body of the plunger to control spin during descent. A canted-coil-spring disposed within the retaining nut functions as a clutch. The valve cage includes ports that may be configured to control flow through the plunger during ascent.
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公开(公告)号：US11578570B2
公开(公告)日：2023-02-14
申请号：US17746761
申请日：2022-05-17
发明人： Mitchell A. Boyd , Garrett S. Boyd
摘要： A bypass plunger includes a unibody, or one-piece hollow body and valve cage, retains a dart valve within the valve cage portion using a threaded retaining nut secured by crimple detents, and includes sealable flow parts. A series of helical grooves surround the central portion of the outer surface of the hollow body of the plunger to control spin during descent. A canted-coil-spring disposed within the retaining nut functions as a clutch. The valve cage includes ports that may be configured to control flow through the plunger during descent. Other embodiments include clutch assemblies using canted-coil springs with split bobbins, and surfaced valve stems surfaced.
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公开(公告)号：US20220056785A1
公开(公告)日：2022-02-24
申请号：US17518140
申请日：2021-11-03
发明人： Garrett S. Boyd , Mitchell A. Boyd
摘要： A bypass plunger formed as an integral one-piece hollow body-and-valve cage unit retains a dart valve within a valve cage section of the hollow body with a threaded retaining nut that may be secured by crimple means. A boundary zone, defined along the plunger body, where the integral valve cage section adjoins the plunger body, is configured with a uniform outer diameter to maximize the plunger body wall thickness and durability of the one-piece bypass plunger. The valve cage may have flow ports configured with ramps at an angle with the longitudinal axis to control flow through the flow ports during descent of the bypass plunger. A clutch assembly using garter springs with split bobbins may be disposed within the valve cage portion of the one-piece bypass plunger.
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公开(公告)号：US10273789B2
公开(公告)日：2019-04-30
申请号：US15048491
申请日：2016-02-19
发明人： Garrett S. Boyd , Mitchell A. Boyd
摘要： A bypass plunger combines a unitary or one-piece hollow body-and-valve cage, retains a dart valve within the valve cage portion of the hollow body using a threaded retaining nut secured by crimple detents. A series of helical grooves surround the central portion of the outer surface of the hollow body of the plunger to control spin during descent. A canted-coil-spring disposed within the retaining nut functions as a clutch. The valve cage includes ports that may be configured to control flow through the plunger during ascent. Other embodiments include clutch assemblies using canted-coil springs with split bobbins, and valve stems surfaced to achieve specific functions. Combinations of these features provide enhanced performance, durability and reliability at reduced manufacturing cost, due primarily to the simplicity of its design.
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公开(公告)号：US09951591B2
公开(公告)日：2018-04-24
申请号：US14796548
申请日：2015-07-10
发明人： Garrett Boyd
IPC分类号： E21B43/12
CPC分类号： E21B43/121
摘要： A minimum parts bypass plunger includes a main shaft or pushrod extending through a hollow plunger body that incorporates flow passages formed in the adjacent surfaces of the pushrod or the internal bore of the plunger body. The pushrod is retained within the plunger body by respective head and tail pieces or caps that are locked to the plunger body by 360 degree crimps around the head and tail pieces. A one piece clutch is supported in the head piece. The pushrod, has an integral valve head that closes the flow passages when seated against a seat in the plunger body.
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公开(公告)号：US09677389B2
公开(公告)日：2017-06-13
申请号：US15245740
申请日：2016-08-24
IPC分类号： E21B43/12
CPC分类号： E21B43/121 , F04B53/12
摘要： A dart valve assembly includes a dart valve and a clutch that restrains the movement of the dart valve within the bore of a dart valve cage or plunger body between a closed and an open position. The clutch includes a clutch bobbin formed of a synthetic material, and both the inside diameter of the clutch bobbin and the outside diameter of the dart valve stem of the dart valve assembly are configured with a sequence of alternating ridges and grooves to improve clutch action through reduced friction.
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公开(公告)号：US20240159129A1
公开(公告)日：2024-05-16
申请号：US18508696
申请日：2023-11-14
IPC分类号： E21B43/12
CPC分类号： E21B43/121
摘要： An electrically operated catcher mechanism that is part of a lubricator and catcher unit used in conjunction with a bypass plunger in an oil or gas well include an electrically operated mechanism to move between the catch and release positions. The electrically operated catcher mechanism includes a cam rotated by a motor which causes the device to move between catch and release positions.
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公开(公告)号：US11448049B2
公开(公告)日：2022-09-20
申请号：US17012438
申请日：2020-09-04
发明人： Mitchell A. Boyd , Garrett S. Boyd
摘要： A disclosed control system for a gas assisted plunger lift (GAPL) system includes a sensor and a processor circuit. The sensor is configured to measure a plunger speed and/or velocity and the processor circuit is configured to control various parameters of the GAPL based on the measured plunger speed and/or velocity. The processor circuit may be configured to adjust a gas injection rate parameter based on the measured plunger speed and/or velocity, and/or may adjust one or more parameters including: a close time, an afterflow time, a flow rate, a load factor, a tubing pressure, a casing pressure, and a tubing/casing differential pressure. The controller may be further configured to adjust all parameters simultaneously or may sequentially adjust a first sub-set of parameters and then adjust a second sub-set of parameters. The first sub-set may include a gas injection flow rate and the second sub-set may include after-flow and close time parameters.
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