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公开(公告)号：US20210198999A1
公开(公告)日：2021-07-01
申请号：US17058504
申请日：2018-07-19
IPC分类号： E21B47/008 , E21B47/13 , H04W4/38 , H04L29/08
摘要： A system for monitoring conditions in a wellbore includes a sensor assembly and a controller assembly. The sensor assembly attaches to a portion of a casing disposed in the wellbore and includes a sensor module and an inductive module. The sensor module measures conditions in the wellbore and the inductive module forms a wireless communication channel. The inductive module includes a first set of inductive coils and a second set of inductive coils that substantially surround the first set of inductive coils. The controller assembly attaches to a portion of a production tube housed within the casing and includes at least one coil inductively coupled to the inductive module, and communicates signals over the wireless communication channel.
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公开(公告)号：US11035841B2
公开(公告)日：2021-06-15
申请号：US16506612
申请日：2019-07-09
发明人： Brian A. Roth
IPC分类号： G01N33/28 , E21B47/008 , E21B43/12 , G01N27/22
摘要： A method of monitoring a protective fluid of a wellbore tool includes flowing, by a sensor or a fluid moving device secured to a wellbore tool disposed at a downhole location within a wellbore, a portion of a protective fluid of the wellbore tool through a body of the sensor. The portion of the protective fluid is exposed to the body of the sensor responsive to the flowing. The protective fluid degrades over time responsive to the wellbore tool performing operations in the wellbore. The method also includes, in response to the protective fluid being exposed to the body of the sensor, determining, at least in part by the sensor, a degradation level of the protective fluid. The method also includes transmitting, by the sensor or a device communicatively coupled to the sensor, the determined degradation level to a surface of the wellbore.
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公开(公告)号：US11028844B2
公开(公告)日：2021-06-08
申请号：US15424452
申请日：2017-02-03
申请人： Ravdos Holdings Inc.
IPC分类号： F04B49/20 , E21B47/00 , E21B43/12 , F04B47/02 , F04B51/00 , F04B49/06 , F04B53/14 , E21B47/008 , E21B47/009
摘要： A controller for operating a rod pumping unit at a pump speed. The controller includes a processor configured to operate a pump piston of the rod pumping unit at a first speed. The processor is further configured to determine a pump fillage level for a pump stroke based on a position signal and a load signal. The processor is further configured to reduce the pump speed to a second speed based on the pump fillage level for the pump stroke.
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公开(公告)号：US11002126B2
公开(公告)日：2021-05-11
申请号：US17110354
申请日：2020-12-03
发明人： Zhiyuan Wang , Jianbo Zhang , Baojiang Sun , Wenqiang Lou , Xiaohui Sun , Zheng Liu , Shikun Tong
IPC分类号： E21B44/06 , E21B41/00 , E21B47/008 , E21B47/07 , E21B47/08 , E21B47/047
摘要： An active control method and system for wellbore pressure in open-cycle drilling in marine natural gas hydrates. The system comprises a drilling system, a drilling fluid injection system, and a data processing system for conducting the drilling operation.
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公开(公告)号：US10989025B2
公开(公告)日：2021-04-27
申请号：US15466376
申请日：2017-03-22
IPC分类号： E21B43/12 , E21B33/12 , E21B47/008 , E21B47/06 , E21B47/07
摘要： A system for producing hydrocarbons from a subterranean well includes an electrical submersible pump assembly with a pump, intake, protector, and motor. A production tubing is in fluid communication with the electrical submersible pump assembly and has an inner bore sized to deliver fluids from the electrical submersible pump assembly to a wellhead assembly. A packer assembly is located between the pump and the intake, the packer assembly moveable to an expanded position with an outer diameter in sealing engagement with an inner diameter of an outer tubular member.
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公开(公告)号：US10947826B2
公开(公告)日：2021-03-16
申请号：US15445443
申请日：2017-02-28
发明人： Amer M Kassab
IPC分类号： E21B43/24 , E21B47/008 , E21B33/068 , E21B43/12 , G01N33/00
摘要： A steam-assisted hydrocarbon recovery system includes a wellbore, a wellhead connected to the wellbore, and a steam plant. The steam plant includes a steam generator, one or more steam lines connected between the steam generator and the wellhead, and a sensor module configured to measure a steam characteristic in the steam line near the wellhead. The steam-assisted hydrocarbon recovery system may also include an artificial lift system. Measurements made by the sensor module can be used to optimize the production of steam and the operation of the artificial lift system.
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公开(公告)号：US10900481B2
公开(公告)日：2021-01-26
申请号：US15099342
申请日：2016-04-14
IPC分类号： F04B49/06 , E21B43/12 , E21B47/008 , F04B35/00 , F04B49/20 , F04B47/02 , F04B23/02 , F04B23/10 , F04B53/10
摘要： A controller for operating a prime mover of a rod pumping unit includes a processor configured to operate the prime mover over a first stroke and a second stroke. The controller is further configured to compute a first motor torque imbalance value for the first stroke and engage adjustment of a counter-balance. The controller is further configured to estimate a second motor torque imbalance value for the second stroke. The controller is further configured to disengage adjustment of the counter-balance during the second stroke upon the second motor torque imbalance value reaching a first imbalance range.
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公开(公告)号：US10851774B2
公开(公告)日：2020-12-01
申请号：US14945163
申请日：2015-11-18
IPC分类号： F04B49/20 , F04B47/02 , F04B53/14 , F04B19/22 , F04B51/00 , E21B43/12 , E21B47/00 , E21B47/008
摘要： A controller for operating a rod pumping unit at a pump speed. The controller includes a processor configured to operate a pump piston of the rod pumping unit at a first speed. The processor is further configured to determine a pump fillage level for a pump stroke based on a position signal and a load signal. The processor is further configured to reduce the pump speed to a second speed based on the pump fillage level for the pump stroke.
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公开(公告)号：US20200340337A1
公开(公告)日：2020-10-29
申请号：US16856860
申请日：2020-04-23
发明人： Mehdi MOUSAVI
IPC分类号： E21B43/12 , E21B47/008 , F04B47/02 , F04B49/20
摘要： A system and method for optimizing performance of an artificial lift system are provided. The optimization process can be performed automatically by a controller configured to receive optimization parameters from the user and information regarding the performance of the system. The optimization process adjusts the pumping speed of the system in response to measured rod load and a position of the downhole pump or surface pumping unit. More particularly, the optimization process can increase or decrease the pump speed of the system in response to the measured rod load at a reference position relative to a reference rod load at the reference position. The reference load and position can be selected to indicate pump inefficiencies. For example, the target reference load and position can indicate fluid pounding if the measured rod load at the reference position is greater than the reference rod load at the reference position.
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公开(公告)号：US20240352848A1
公开(公告)日：2024-10-24
申请号：US18304496
申请日：2023-04-21
IPC分类号： E21B47/008 , E21B43/12
CPC分类号： E21B47/008 , E21B43/128
摘要： A system and method for determining the discharge pressure of a gas handler in a well. The system includes an electrical submersible pump connected to a discharge head disposed in the well, a gas handler discharge line configured to connect the discharge head to a sensor, a processor configured to receive data from the sensor and determine the discharge pressure of the gas handler based on the received data, and a display configured to display the discharge pressure of the gas handler. The method includes attaching a discharge head to the gas handler, attaching a gas handler discharge line from the discharge head to a sensor, measuring pressure transferred from the gas handler into the electrical submersible pump, receiving the measurement of the pressure transferred, determining the discharge pressure of the gas handler based on the measurement of the pressure transferred, and displaying the discharge pressure of the gas handler.
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