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公开(公告)号：US10597947B2
公开(公告)日：2020-03-24
申请号：US15983700
申请日：2018-05-18
摘要： Reamer for earth-boring applications may include a body having a longitudinal axis and a blade carried by the body. The blade may include at least one cutting element located at a first radial distance from the longitudinal axis and a gage pad located at a second, smaller radial distance from the longitudinal axis. Methods of enlarging pilot holes in earth formations utilizing reamers may involve removing earth material from a sidewall of the pilot hole utilizing at least one cutting element located at a first radial distance from a longitudinal axis of a body of the reamer on a blade of a reamer. The reamer may be stabilized by placing a gage pad located on the blade in sliding contact with a portion of the sidewall of the pilot hole, the gage pad located at a second, smaller radial distance from the longitudinal axis.
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52.发明授权公开(公告)号：US10584540B2
公开(公告)日：2020-03-10
申请号：US15966881
申请日：2018-04-30
发明人： Richard Wayne Borge
摘要： A cutting table comprises hard material, and a fluid flow pathway within the hard material. The fluid flow pathway is configured to direct fluid proximate outermost boundaries of the hard material through one or more regions of the hard material inward of the outermost boundary of the hard material. A cutting element and an earth-boring tool are also described.
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公开(公告)号：US20200072296A1
公开(公告)日：2020-03-05
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
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：US20200072228A1
公开(公告)日：2020-03-05
申请号：US16558102
申请日：2019-08-31
发明人： Blayne Prine , Gordon Besser , Gary Williams , Craig Cooper , Vernon Chronister , Jeremy Hillshafer
摘要： A transformer configured for use in connection with a variable speed motor drive includes primary windings and secondary windings. The secondary windings are configured as wye-windings and a ground lead and a plurality of phase leads. The transformer includes a ferrite blocking circuit connected to the ground lead.
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公开(公告)号：US20200072045A1
公开(公告)日：2020-03-05
申请号：US16557996
申请日：2019-08-30
发明人： Silke BRAMLAGE , Benjamin KNOOP
摘要： Methods, systems, devices, and products for constructing a downhole tool electronics module. Methods may include creating a circuit board by metallizing at least part of a first surface on a first side of a substrate to define at least one metallized area on the first surface, wherein the substrate comprises a ceramic material and includes: the first side, including at least (i) the first surface, and (ii) an elevated surface elevated from the first surface, and a second side opposite the first side; flattening at least partially the elevated surface to a predefined first flatness to create a mounting portion by removing material from the elevated surface; attaching an electronics component to the first surface; and mounting the circuit board on an electronics carrier by adhering at least part of the mounting portion to a mounting surface on the electronics carrier. Flattening at least partially the elevated surface to the predefined first flatness may be carried out by removing the material by areal grinding.
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公开(公告)号：US10576726B2
公开(公告)日：2020-03-03
申请号：US15085555
申请日：2016-03-30
发明人： Madison S. Burns , Luke Alan Boyer , Christoph Wangenheim , James Andy Oxford , Sobieslaw Gacek
摘要： In some embodiments, systems for creating and heat-treating 3D-printed objects may include a 3D printer configured to create the object. A heat-treatment apparatus may be operatively connected to the 3D printer. The heat-treatment apparatus may be configured to expose the object to an elevated temperature to heat-treat the object. A pressure-transmission medium of the heat-treatment apparatus may be configured to apply pressure to the object during heat treatment. The 3D printer and heat-treatment apparatus may be incorporated into a unified process flow volume. Methods of creating and heat-treating 3D-printed objects may involve creating an object utilizing a 3D printer. The object may be moved from the 3D printer to a heat-treatment apparatus. The object may be exposed to an elevated temperature and pressure may be applied to the object utilizing a pressure-transmission medium of the heat-treatment apparatus. The 3D printer and heat-treatment apparatus may in a unified process flow volume.
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公开(公告)号：US20200033494A1
公开(公告)日：2020-01-30
申请号：US16523559
申请日：2019-07-26
摘要： Methods and apparatuses for evaluating an earth formation intersected by a borehole. Methods include estimating a property of cement surrounding a tubular in the earth formation by: generating an acoustic signal with a logging tool in the borehole; estimating the property in dependence upon a late reflected wave field of a modified response acoustic signal, wherein the modified response acoustic signal is produced by suppression of a direct mode component.
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公开(公告)号：US20200032589A1
公开(公告)日：2020-01-30
申请号：US16047819
申请日：2018-07-27
IPC分类号： E21B10/573 , E21B10/00
摘要： A cutting element for an earth-boring tool includes a substrate and a polycrystalline, superabrasive material secured to an end of the substrate. The polycrystalline, superabrasive material includes a curved, stress-reduction feature located at least on the first transition surface. The cutting element includes at least one recess defined in the curved, stress-reduction feature of the polycrystalline, superabrasive material. The at least one recess includes sidewalls intersecting with a front surface of the stress-reduction feature of the polycrystalline, superabrasive material and extending to a base wall within the polycrystalline, superabrasive material. The curved, stress-reduction feature includes an undulating edge formed proximate a peripheral edge of the polycrystalline, superabrasive material and a waveform extending from the undulating edge toward the center longitudinal axis of the cutting element.
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公开(公告)号：US10544632B2
公开(公告)日：2020-01-28
申请号：US15726593
申请日：2017-10-06
摘要： A splice connects segments of coiled tubing and power cable together. The splice has a base and a head, each having an interior conical surface and a collet with fingers that deflect inward in gripping engagement with one of the segments in response to axial movement of the head collet and the base collet. A compression sleeve extends between the base collet and the head collet and exerts forces on the collets while the base and head are being secured together. An insulator tube slides over each of the power conductors. A retainer ring for each insulator tube grips one of the power conductors and abuts a shoulder in the insulator tube to prevent movement of the insulator tube along the power conductor.
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公开(公告)号：US10544370B2
公开(公告)日：2020-01-28
申请号：US15650626
申请日：2017-07-14
摘要： A water extraction process for separating bitumen from tar sands comprises slurrying tar sands in water, mixing the aqueous slurry with a magnetic substance for a time sufficient to release bitumen from tar sands and to uniformly disperse the magnetic substance with the bitumen, and subjecting the resulting slurry to froth flotation for recovery of a bitumen product and production of sand tails. The magnetic substance may comprise a magnetic surfactant. Alternatively, the magnetic substance comprises a magnetic nanoparticle together with a frother having the characteristics of methyl-isobutyl-carbinol and can be mixed with the aqueous slurry by attrition scrubbing or by flotation cell mixing. The magnetic substance may be recovered for further reuse by applying a magnetic or electromagnetic field to the tailings. The process may suitably applied in both so-called hot water extraction processes as well in an “ambient” temperature (from about freezing to 35° C.) process.
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