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公开(公告)号：US20190203570A1
公开(公告)日：2019-07-04
申请号：US16294660
申请日：2019-03-06
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：US20160010436A1
公开(公告)日：2016-01-14
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.
摘要翻译： 最小零件旁路柱塞包括延伸穿过中空柱塞体的主轴或推杆，其包括形成在推杆的相邻表面中的流动通道或柱塞主体的内孔。 推杆通过相应的头部和尾部件或帽被保持在柱塞体内，所述头部和尾部件或帽通过围绕头部和尾部件的360度卷曲锁定到柱塞体。 头部件支撑一体式离合器。 推杆具有一体的阀头，当阀座抵靠在柱塞体中的座时，该阀头封闭流动通道。
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公开(公告)号：US11530599B2
公开(公告)日：2022-12-20
申请号：US17581301
申请日：2022-01-21
发明人： Garrett S. Boyd , Mitchell A. Boyd
IPC分类号： E21B43/12 , F04B47/12 , E21B34/08 , G06F16/182 , G06F16/18 , G06F16/11 , G06F16/14 , G06F16/176 , G06F16/178 , G06F16/00 , G06F16/10 , G06F16/13 , G06F15/16 , H04L67/1095
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：US20220178231A1
公开(公告)日：2022-06-09
申请号：US17681356
申请日：2022-02-25
发明人： Garrett S. Boyd , Mitchell A. Boyd
IPC分类号： E21B43/12 , F16F1/04 , F16F7/00 , B21D39/20 , E21B17/043
摘要： A bumper spring assembly having a one piece mandrel including an integral head piece is further configured with a cage assembly retained on the mandrel with a cage nut locked to the mandrel to obviate the need for pins, set screws, and the like, to provide a more robust assembly. In two embodiments the cage nut is locked to the mandrel in a swaging operation. Improved flow of fluids through and around the bumper spring assembly are also provided
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公开(公告)号：US11326424B2
公开(公告)日：2022-05-10
申请号：US16887051
申请日：2020-05-29
发明人： Mitchell A. Boyd , Garrett S. Boyd
摘要： A bumper spring assembly having a one piece mandrel including an integral head piece is further configured with a cage assembly retained on the mandrel with a cage nut locked to the mandrel to obviate the need for pins, set screws, and the like, to provide a more robust assembly. In two embodiments the cage nut is locked to the mandrel in a swaging operation. Improved flow of fluids through and around the bumper spring assembly are also provided.
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公开(公告)号：US11293267B2
公开(公告)日：2022-04-05
申请号：US16698228
申请日：2019-11-27
发明人： Garrett S. Boyd , Mitchell A. Boyd
摘要： Disclosed embodiments include an apparatus, such as a plunger for oil and/or gas wells, that includes one or more scraping features. The scraping feature may include at least one ridge configured to scrape material, such as paraffins, asphaltenes, salt, hydrates, debris, solids, etc., from an inner surface of a tubular body and direct the scraped material away from the plunger body. A disclosed method for scraping material from a tubular body includes releasing a plunger within the tubular body, the plunger having a body with an outer surface and a scraping feature on the outer surface that includes at least one ridge; scraping material from an inner surface of the tubular body with the ridge of the scraping feature; and directing the scraped material away from the plunger body.
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公开(公告)号：USD937982S1
公开(公告)日：2021-12-07
申请号：US29692914
申请日：2019-05-29
设计人： Garrett S. Boyd , Mitchell A. Boyd
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公开(公告)号：US11105189B2
公开(公告)日：2021-08-31
申请号：US16361651
申请日：2019-03-22
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：US20210079911A1
公开(公告)日：2021-03-18
申请号：US17025322
申请日：2020-09-18
发明人： Mitchell A. Boyd , Garrett S. Boyd
摘要： A disclosed unibody bypass plunger has a unitary one-piece hollow body, a valve cage, a clutch system, crimple fastening structures, and a valve. The clutch system is provided in a bottom end of the plunger and is configured to limit a position of the valve. A top end includes an external fish neck with ports or slots. The plunger further includes an integral shift rod that extends out of the top end in a closed configuration and extends out of the bottom end in an open configuration, eliminating a need for a separator rod in a lubricator cap to open and close the valve. Ports or slots may be pluggable with one or more plugs. As such, a fall speed of the plunger may be adjusted based on a number of plugs that are installed, with the greatest fall speed being obtained with all ports or slots unplugged.
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公开(公告)号：US20210071505A1
公开(公告)日：2021-03-11
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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