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公开(公告)号：US12098618B2
公开(公告)日：2024-09-24
申请号：US17872935
申请日：2022-07-25
发明人： Joe Ficken
IPC分类号： E21B4/00
CPC分类号： E21B4/003
摘要： A pack system for a downhole assembly is provided. One end of the pack system is connected to a drill bit for drilling a wellbore, the other end of the pack system interfaces with a motor to receive torque. The pack system described herein has a simple design that reduces the number of parts, eliminates some seals and shims, and relies on a portion of drilling mud for lubrication. As a result, wear on parts of the system is greatly reduced and the longevity of the system is greatly increased. The hardness of various components of the system in key areas is increased, for example, with carbide, to further reduce wear and increase longevity. In addition, the simpler, more balanced arrangement of components allows for reduced vibration and high rotational speeds, which improves the performance of the overall downhole assembly.
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公开(公告)号：US12060774B2
公开(公告)日：2024-08-13
申请号：US18008754
申请日：2021-08-17
发明人： Werner Burger , Gerhard Wehrmeyer , Dietmar Isele , Felix Weber
IPC分类号： E21B4/00 , F16J15/3216 , F16J15/3232 , F16J15/3268
CPC分类号： E21B4/003 , F16J15/3216 , F16J15/3232 , F16J15/3268
摘要： A sealing unit (115) for sealing an annular gap (109) formed between a seal wear ring (106) and a seal carrier (112) has a sealing ring holder (118) which is U-shaped in a receptacle region and which, together with the receptacle region, encloses a fixing region (209) of the sealing ring (121).
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公开(公告)号：US12049922B2
公开(公告)日：2024-07-30
申请号：US18201322
申请日：2023-05-24
CPC分类号： F16C33/121 , C04B35/58007 , F16C33/043 , F16C33/12 , F16C33/26 , E21B4/003 , F16C2204/40 , F16C2206/04 , F16C2206/82 , F16C2352/00
摘要： Embodiments disclosed herein relate to bearing assemblies and methods of manufacturing. In an embodiment, a bearing assembly includes a support ring and bearing elements. The bearing elements are mounted to and distributed circumferentially about an axis of the support ring. At least one of the bearing elements includes a polycrystalline diamond table, a substrate bonded to the polycrystalline diamond table, bonding region defined by the substrate and the polycrystalline diamond table, and a corrosion resistant region. The corrosion resistant region includes a corrosion resistant material that covers at least a portion of at least one lateral surface of the bonding region. The corrosion resistant region prevents corrosion of at least some material in the bonding region covered by the corrosion resistant region (e.g., during use). Other embodiments employ one or more sacrificial anodes as an alternative to or in combination with the corrosion resistant region.
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公开(公告)号：US11965398B2
公开(公告)日：2024-04-23
申请号：US16454793
申请日：2019-06-27
发明人： Manuel Marya , Srinand Karuppoor
IPC分类号： E21B4/02 , B22F5/00 , B22F10/25 , B22F10/30 , B33Y50/02 , B33Y70/00 , B33Y80/00 , E21B4/00 , B22F10/14
CPC分类号： E21B4/02 , B22F10/25 , B22F10/30 , B33Y50/02 , E21B4/003 , B22F2005/002 , B22F10/14 , B22F2301/10 , B22F2302/05 , B22F2302/20 , B22F2302/406 , B33Y70/00 , B33Y80/00
摘要： Wear resistant self-lubricating additive manufacturing parts and part features are disclosed in use with oilfield service operations.
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公开(公告)号：US20240084901A1
公开(公告)日：2024-03-14
申请号：US17930594
申请日：2022-09-08
摘要： A swinging device and related methods; the swinging device includes a first housing mountable to a first pipe on a first side of a pipe flange joint, a second housing mountable to a second pipe on a second side of a pipe flange joint, a shaft rotatably mounted to and extending between the first and second housings, and a spectacle blind mounted to the shaft such that rotating the shaft correspondingly rotates the spectacle blind between an open position, where the spectacle blind allows flow through the pipe flange joint, and a closed positon, where the spectacle blind prevents flow through the pipe flange joint.
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公开(公告)号：US11906020B2
公开(公告)日：2024-02-20
申请号：US17474721
申请日：2021-09-14
CPC分类号： F16H25/122 , E21B4/006 , E21B4/02 , F16H25/06 , F16H49/001 , F16H2025/063
摘要： A harmonic drive assembly and fluid-powered linear motors with both axial pistons are rotary piston arrangements incorporating the harmonic drive assembly are disclosed. The motors may be used in downhole drilling applications, but the drive assembly and/or motors may be used in other applications. The assembly, motors and methods use advanced harmonic drives, advanced helical drives, and combinations thereof with 1) motors with axial pistons and reciprocating linear rings to convert reciprocative axial motion to continuous rotary motion, and 2) motors with rotary pistons and reciprocating linear rings to rectify reciprocative rotary motion to continual rotary motion to improve performance over prior configurations. Axial pistons provide a robust simple solution for generating rotation; Rotational pistons provide increased torque generation as the torque generated is proportional to motor length. Since downhole drills are long, a high-torque motor can be produced using this method.
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公开(公告)号：US20240026738A1
公开(公告)日：2024-01-25
申请号：US17814326
申请日：2022-07-22
摘要： A rotor bearing system configured to operatively couple a progressing cavity machine to an external device can comprise a housing including an inner surface defining a first bore extending through the housing along a central axis, a first bearing arranged on the inner surface, and a shaft member including an outer surface extending between a proximal portion and a distal portion of the shaft member and a second bearing arranged on the outer surface, the second bearing the second bearing configured to contact the first bearing to limit eccentric motion of the driveshaft of the external device and the rotor head of the progressing cavity machine relative to a stator of the progressing cavity machine during rotation of the rotor head, the shaft member, and the driveshaft.
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公开(公告)号：US11846160B2
公开(公告)日：2023-12-19
申请号：US17485749
申请日：2021-09-27
发明人： Jiann-Cherng Su , Somuri V. Prasad , Rand Garfield
CPC分类号： E21B4/003 , B32B9/007 , B32B15/18 , E21B4/14 , E21B17/1007 , B32B2311/18 , B32B2313/04 , B32B2315/02
摘要： A coating architecture is disclosed that includes a substrate having a surface finish Ra of 0.3μ or finer, an intermediate layer overlying and in contact with the substrate; and a solid lubricant layer overlying and in contact with the intermediate layer. The test results of applying the coating architecture to a reciprocating hammer drill utilizing the coating is also disclosed.
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公开(公告)号：US11828114B2
公开(公告)日：2023-11-28
申请号：US17563387
申请日：2021-12-28
CPC分类号： E21B17/1085 , E21B4/003 , E21B4/02
摘要： Systems and methods for cold-spraying coatings on rotors in motor assemblies for improving reliability of motor assembly use downhole in wellbores is provided. For example, a motor assembly can include a stator positioned downhole in a wellbore and rotor coupled to the wellbore. The rotor can include a base material and a first coating deposited onto the base material via cold spraying for reducing damage to the rotor. The first coating may include sprayed particles that have a melting point temperature that is higher than a temperature of a gas used in the cold spraying. In some examples, the rotor may include a second coating deposited onto the first coating via cold spraying, high velocity oxygen fuel coating, or high velocity air fuel. The first coating may have a first hardness that is less than a second hardness of the second coating.
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10.发明授权公开(公告)号：US11815139B2
公开(公告)日：2023-11-14
申请号：US17190386
申请日：2021-03-02
发明人： Jing Lu , Peter Thomas Cariveau , Damon T. Landrum
CPC分类号： F16D3/68 , F16D3/10 , F16D3/12 , E21B4/003 , E21B17/046 , E21B17/07 , F16D2300/06
摘要： Unlaminated bearings (or Torque Transfer Elements, or TTEs) are disposed to slide and displace within pockets (or “housing cavity receptacles”) provided in the internal periphery of a housing in which an articulating shaft is received. As the shaft “tilts” about its untilted axial centerline during misaligned rotation, convex curved bearing surfaces on shaft pins slidably rotate against corresponding concave curved bearings surfaces on the T as received in the housing cavity receptacles. Further, substantially flat surfaces on the TTEs are disposed to slidably displace against corresponding bearing surfaces on the housing cavity receptacles as the shaft tilts and the convex curved bearing surfaces on the shaft pins slidably rotate against the concave curved bearing surfaces on the TTEs. The sliding displacement of TTEs with respect to the housing cavity receptacles during articulated rotation is in a direction generally parallel to the shaft's untilted axial centerline.
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