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公开(公告)号：US11644065B2
公开(公告)日：2023-05-09
申请号：US16558105
申请日：2019-08-31
发明人： John Kay Mack , Joseph Scott Thompson , Kenneth O'Grady , David Farnsworth McManus , Mark Levi Bellmyer
IPC分类号： F16D1/08
CPC分类号： F16D1/0847 , Y10T403/7033 , Y10T403/7041
摘要： A shaft coupling for connecting an upper shaft with a lower shaft within a pumping system is designed to handle a large tensile load between the upper and lower shafts. In some embodiments, the upper shaft includes a shaft ring groove and the coupling has a body and a first receiving chamber within the body that receives an end of the upper shaft. The coupling also includes an upper internal groove extending into the body from the first receiving chamber and an upper split ring that is configured to be compressed into a position occupying both the upper internal groove and the shaft ring groove of the upper shaft. Set screws compress the upper split ring into the shaft ring groove of the upper shaft. In another embodiment, the coupling includes a plurality of locking screws that extend through the body into corresponding lock screw grooves in the upper and lower shafts.
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公开(公告)号：US11378506B2
公开(公告)日：2022-07-05
申请号：US16212999
申请日：2018-12-07
发明人： Daniela Martins Marum , Brian Ochoa
摘要： Systems and methods for determining fluid rheological characteristics of a fluid used in a subsurface operation are provided. The methods include measuring temperature, pressure, and at least one of a flow rate and a flow velocity of the fluid in a first fluid circuit. A model is based on the temperature, the pressures, and the flow rate or flow velocity. The fluid rheological characteristic of the fluid in a second fluid circuit is determined by measuring a temperature and flow rate and/or flow velocity in the second fluid circuit. The rheological characteristic of the fluid is calculated based on the model employing the temperature and the flow rate/flow velocity of the second fluid circuit.
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公开(公告)号：US11359126B2
公开(公告)日：2022-06-14
申请号：US17244028
申请日：2021-04-29
IPC分类号： C09K8/32 , C09K8/54 , C09K8/528 , C23G1/26 , C23F11/10 , C23F14/02 , E21B37/06 , C10G75/02 , C23F11/167
摘要： The present disclosure provides a formulation and methods for simultaneously dissolving metal sulfide scales, inhibiting acid gas corrosion, and inhibiting the formation of calcite and barite in a system having low or high shear stress conditions due to fluid movement, in which the formulation contains a THP+salt, one or more corrosion inhibitors, one or more scale inhibitors, and one or more acid corrosion inhibitors. The formulation may be applied to the system in diluted or undiluted form, and continuously or in batch style.
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公开(公告)号：US20220172385A1
公开(公告)日：2022-06-02
申请号：US17518087
申请日：2021-11-03
摘要： A method and device for measuring dimensions of a feature on or near an object using a video inspection device. A reference surface is determined based on reference surface points on the surface of the object. One or more measurement cursors are placed on measurement pixels of an image of the object. Projected reference surface points associated with the measurement pixels on the reference surface are determined. The dimensions of the feature can be determined using the three-dimensional coordinates of at least one of the projected reference surface points.
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公开(公告)号：US11319753B2
公开(公告)日：2022-05-03
申请号：US17142519
申请日：2021-01-06
发明人： Witali Huber , Gunnar Michaelis , Carsten Hohl , Erik Bartscherer , Harald Grimmer , Christian Fulda , Dorothea Marion Fischer , Thorsten Regener
摘要： A stator for a downhole motor configured for use in a downhole environment. includes an inner tubular member formed from a first metallic material having an outer surface and a helically lobed inner surface, and an outer tubular member comprising a second metallic material that is different from the first metallic material. The inner tubular member is connected to the outer tubular member by compressive force passing from the outer tubular member through the inner tubular member to a rigid mandrel removably disposed within the inner tubular member. The inner tubular member and the outer tubular member form the stator of the downhole motor.
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公开(公告)号：US11306578B2
公开(公告)日：2022-04-19
申请号：US15954224
申请日：2018-04-16
IPC分类号： E21B47/01 , E21B47/017 , F28F7/02 , E21B36/00
摘要： Apparatus and methods directed to an assembly associated with a downhole tool, and including: a thermal housing; at least one internal component inside the thermal housing, wherein the at least one internal component comprises at least one thermally sensitive component; and a thermal isolation support connecting the at least one internal component to the tool. The thermal isolation support may comprise an additive manufacturing structural framework connected to the tool. The structural framework may include a plurality of structural members, with a majority of the plurality of structural members substantially non-parallel with a longitudinal axis of the downhole tool.
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公开(公告)号：US11299964B2
公开(公告)日：2022-04-12
申请号：US16460835
申请日：2019-07-02
发明人： Tobias Hoeink , David L. Cotrell , Sachin Ghorpade
IPC分类号： E21B7/04 , E21B44/00 , E21B47/022 , E21B41/00 , E21B49/00
摘要： Reservoir properties can be received. A plurality of potential well trajectories can be determined. Each trajectory can characterize an extension of the well from a well origin position. Each trajectory can include a plurality of well segments. Production contribution of each potential well trajectory can be evaluated using the reservoir properties. A final well trajectory can be provided based on the evaluated production contribution of the potential well trajectories. Related apparatus, systems, techniques and articles are also described.
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公开(公告)号：US20220098494A1
公开(公告)日：2022-03-31
申请号：US17545910
申请日：2021-12-08
发明人： Jerry Weers , Mary Jane Felipe
IPC分类号： C10G33/04 , C09K15/20 , C09K15/26 , C09K15/30 , C23F11/14 , B01D17/04 , C10L1/236 , C10L10/04 , C10L10/16
摘要： Ionic liquid containing compositions may be used in the production, recovery and refining of oil and gas. In addition, they may be used to treat cooling water and/or to inhibit and/or prevent corrosion of metals.
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公开(公告)号：US11137308B2
公开(公告)日：2021-10-05
申请号：US16238207
申请日：2019-01-02
发明人： Russell Craddock , Martin Marshall
摘要： A pressure sensing package includes a sensor chamber and an annular chamber extending about the sensor chamber. A primary diaphragm divides the sensor chamber into a first part receiving a first pressure and a second part including a differential pressure sensor approximately centered with respect to a sensor axis and a first transmission fluid. The first transmission fluid transmits the first pressure to a first differential pressure sensor face. A secondary diaphragm divides the annular chamber into a first part receiving a second pressure and a second part including a second transmission fluid. The second pressure is transmitted to a second pressure sensor face via the secondary diaphragm and the second transmission fluid. The primary and secondary diaphragms are positioned with respect to one another along the sensor axis direction such that pressures other than the first and second pressures acting on the pressure sensor sum to approximately zero.
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公开(公告)号：US11130918B2
公开(公告)日：2021-09-28
申请号：US16573401
申请日：2019-09-17
发明人： Jagrut Jani , Tran M. Nguyen , Jerry J. Weers , Zhengwei Liu
摘要： Metals, such as mercury, may be removed from aqueous, hydrocarbon, or mixed oilfield or refinery fluids by: applying a sulfur compound having the general formula HS-X, wherein X is a heteroatom substituted alkyl, cycloalkyl, aryl, and/or alkylaryl group either alone or in combination with or as a blend with at least one demulsifier, a buffering agent, a pour point depressant, and/or a water clarifier to chelate the at least one metal and form a chelate complex of the sulfur compound with the at least one metal and then separating the chelate complex from the fluid.
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