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公开(公告)号：US10215176B2
公开(公告)日：2019-02-26
申请号：US15292798
申请日：2016-10-13
申请人： Basintek, LLC
摘要： A stator for use in a positive displacement motor. The stator comprises a rubber compound including fiber reinforcement. The fiber reinforcement includes a plurality of elongated fibers. The elongated fibers in the fiber reinforcement create a grain direction generally with the grain in the longitudinal direction of the stator tube and across the grain in the transverse direction. The rubber compound has a 25% tensile Modulus that is at least 10% lower across the grain than with the grain. The fiber reinforcement includes a fiber loading of greater than about 2.5 phr of elongate fibers, the elongate fibers have a Modulus of greater than about 60 GPa, and the rubber compound has a 25% tensile Modulus of greater than about 400 psi against the grain and a 50% tensile Modulus of greater than about 700 psi against the grain. In some embodiments, the rubber reinforcement also comprises a blend of fibrillated fibers and short cut fibers.
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公开(公告)号：US20170101990A1
公开(公告)日：2017-04-13
申请号：US15292798
申请日：2016-10-13
申请人： Basintek, LLC
IPC分类号： F04C29/00
CPC分类号： F04C29/00 , B29C70/62 , F03C2/08 , F04C2/1075 , F05C2225/02 , F05C2253/04
摘要： A stator for use in a positive displacement motor. The stator comprises a rubber compound including, fiber reinforcement. The fiber reinforcement includes a plurality of elongated fibers. The elongated fibers in the fiber reinforcement create a grain direction generally with the grain in the longitudinal direction of the stator tube and across the grain in the transverse direction. The rubber compound has at least a 10% lower tensile Modulus across the grain than with the grain. The fiber reinforcement includes a fiber loading of greater than about 2.5 phr of elongate fibers, the elongate fibers have a 100% tensile Modulus of greater than about 60 GPa, and the rubber compound has a 25% tensile Modulus of greater than about 400 psi against the grain and a 50% tensile Modulus of greater than 700 psi against the grain, some embodiments, the rubber reinforcement also comprises a blend of fibrillated fibers and short cut fibers.
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公开(公告)号：US10934778B2
公开(公告)日：2021-03-02
申请号：US15721959
申请日：2017-10-01
申请人： Basintek, LLC
发明人： Jing Lu , Peter Thomas Cariveau
IPC分类号： E21B4/00 , E21B17/046 , F16D3/68 , F16C32/00 , F16D1/10
摘要： A torque transmission comprising input and output shaft adapters. Pins disposed on an outer surface of the input shaft adapter. Each pin provides a curved pin portion oriented generally perpendicular to the input shaft adapter's longitudinal axis. The output shaft adapter provides a recess with a plurality of receptacles (or “notches”) formed in the recess's periphery, wherein the recess is shaped and sized such that when the input shaft adapter is received inside the recess, each pin is received into a corresponding notch. The torque transmission further comprises torsional bearings interposed between the pins and the notches, each torsional bearing providing a curved laminate portion such that the curved laminate portions contact the curved pin portions when the pins are received into their corresponding notches. The torsional bearings may further provide flat laminate portions that contact the notch when the pins are received into the notches.
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公开(公告)号：US10385694B2
公开(公告)日：2019-08-20
申请号：US15948847
申请日：2018-04-09
申请人： Basintek, LLC
摘要： A method for evaluating load performance of a rotor/stator test coupon, advantageously within a sealable test chamber comprising test fluid. In some embodiments, the test coupon comprises at least a partial length of a PDM stage, and in others the test coupon comprises a splined rotor/stator. The method includes rotating either the rotor section or the stator section, wherein such rotation actuates corresponding rotation of the other of the rotor section and the stator section. A braking torque is applied to the actuated one of the rotor section and the stator section such that load performance of the test coupon may be evaluated. Embodiments include selectively applying non-linear torque to load the test coupon, and evaluating load performance of the test coupon with reference to relative angular positions of the rotor section and the stator section over time.
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公开(公告)号：US20180216462A1
公开(公告)日：2018-08-02
申请号：US15938143
申请日：2018-03-28
申请人： Basintek, LLC
CPC分类号： F01C20/28 , F01C1/101 , F03C2/08 , F04C2/1071 , F04C2270/80 , G01M99/002 , G01M99/007
摘要： A method for measuring load performance of a positive displacement motor (PDM) test coupon. The test coupon comprises a partial length of a PDM stage and is received inside a sealable test chamber. In some embodiments, the test coupon may be cut from a failed PDM stage. The test chamber is filled with test fluid. In some embodiments, the test fluid may be drilling fluid sampled from a live well. Rotation of the rotor on the test coupon actuates rotation of the stator. A braking torque is applied to the stator rotation, enabling evaluation of, for example, fatigue load performance of test coupon. Additional embodiments comprise the rotor axis and the stator axis being offset in order to simulate rotor/stator eccentricity in a full size PDM stage.
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公开(公告)号：US20180066654A1
公开(公告)日：2018-03-08
申请号：US15692591
申请日：2017-08-31
申请人： Basintek, LLC
CPC分类号： F04C2/1075 , B23F15/08 , E21B4/02 , F04C2230/101 , F04C2230/231
摘要： In some embodiments, a method is disclosed for manufacturing an undercut stator from a unitary cylindrical workpiece using broaching techniques. In other embodiments, methods are disclosed for manufacturing undercut and non-undercut stators using friction welding techniques to conjoin threaded end sections to stator sections having helical pathways formed therein.
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公开(公告)号：US10294793B2
公开(公告)日：2019-05-21
申请号：US15938143
申请日：2018-03-28
申请人： Basintek, LLC
摘要： A method for measuring load performance of a positive displacement motor (PDM) test coupon. The test coupon comprises a partial length of a PDM stage and is received inside a sealable test chamber. In some embodiments, the test coupon may be cut from a failed PDM stage. The test chamber is filled with test fluid. In some embodiments, the test fluid may be drilling fluid sampled from a live well. Rotation of the rotor on the test coupon actuates rotation of the stator. A braking torque is applied to the stator rotation, enabling evaluation of, for example, fatigue load performance of test coupon. Additional embodiments comprise the rotor axis and the stator axis being offset in order to simulate rotor/stator eccentricity in a full size PDM stage.
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公开(公告)号：US20180223665A1
公开(公告)日：2018-08-09
申请号：US15948847
申请日：2018-04-09
申请人： Basintek, LLC
CPC分类号： F01C20/28 , F01C1/103 , F03C2/08 , F04C2/1071 , F04C13/008 , F04C2270/80 , G01M15/02 , G01M99/002 , G01M99/007
摘要： A method for evaluating load performance of a rotor/stator test coupon, advantageously within a sealable test chamber comprising test fluid. In some embodiments, the test coupon comprises at least a partial length of a PDM stage, and in others the test coupon comprises a splined rotor/stator. The method includes rotating either the rotor section or the stator section, wherein such rotation actuates corresponding rotation of the other of the rotor section and the stator section. A braking torque is applied to the actuated one of the rotor section and the stator section such that load performance of the test coupon may be evaluated. Embodiments include selectively applying non-linear torque to load the test coupon, and evaluating load performance of the test coupon with reference to relative angular positions of the rotor section and the stator section over time.
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公开(公告)号：US09938829B2
公开(公告)日：2018-04-10
申请号：US15464640
申请日：2017-03-21
申请人： Basintek, LLC
CPC分类号： F01C20/28 , F01C1/101 , F03C2/08 , F04C2/1071 , F04C2270/80 , G01M99/002 , G01M99/007
摘要： A method for measuring load performance of a positive displacement motor (PDM) test coupon. The test coupon includes a partial length of a PDM stage and is received inside a sealable test chamber. In some embodiments, the test coupon may be cut from a failed PDM stage. The test chamber is filled with test fluid. In some embodiments, the test fluid may be drilling fluid sampled from a live well. Rotation of the rotor on the test coupon actuates rotation of the stator. A braking torque is applied to the stator rotation, enabling evaluation of, for example, fatigue load performance of test coupon. Additional embodiments comprise the rotor axis and the stator axis being offset in order to simulate rotor/stator eccentricity in a full size PDM stage.
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公开(公告)号：US20180094489A1
公开(公告)日：2018-04-05
申请号：US15721959
申请日：2017-10-01
申请人： Basintek, LLC
发明人： Jing Lu , Peter Thomas Cariveau
摘要： A torque transmission comprising input and output shaft adapters. Pins disposed on an outer surface of the input shaft adapter. Each pin provides a curved pin portion oriented generally perpendicular to the input shaft adapter's longitudinal axis. The output shaft adapter provides a recess with a plurality of notches formed in the recess's periphery, wherein the recess is shaped and sized such that when the input shaft adapter is received inside the recess, each pin is received into a corresponding notch. The torque transmission further comprises torsional bearings interposed between the pins and the notches, each torsional bearing providing a curved laminate portion such that the curve laminate portions contact the curved pin portions when the pins are received into their corresponding notches. The torsional bearings may further provide flat laminate portions that contact the notch when the pins are received into the notches.
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