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1. 发明申请

US20210002973A1 PLUG ASSEMBLY 有权
公开(公告)号：US20210002973A1
公开(公告)日：2021-01-07
申请号：US16502963
申请日：2019-07-03
申请人： CNPC USA Corp.
发明人： Jianpeng YUE , Anthony TRAN , Yu LIU , Xiongwen YANG
IPC分类号： E21B33/134 , E21B33/129 , E21B33/12
摘要： A plug assembly includes a cone assembly, a sealing ring, a slip device of a plurality of blades, a plurality of spaces defined by adjacent blades, a plurality of support lugs, and a setting ring. The setting ring moves from a first setting distance relative to the cone assembly to a second setting distance closer to the cone assembly to radially expand the sealing ring, slip device, and spaces to install the plug assembly at the downhole location. The support lugs are aligned with the spaces to prevent extrusion of the sealing ring into the spaces and radially expand when the blades and spaces radially expand. The support lugs can be separate from each other, overlap, or interlock. The method of installation includes radially expanding the sealing ring, when the sealing ring is separated from the spaces formed by the blades of the slip device.

2. 发明申请

US20200024922A1 TOOL ASSEMBLY WITH A FLUIDIC AGITATOR 审中-公开
公开(公告)号：US20200024922A1
公开(公告)日：2020-01-23
申请号：US16586662
申请日：2019-09-27
申请人： CNPC USA Corp. , Beijing Huamei, Inc.
发明人： Ming ZHANG , Chris CHENG , Dengxiang BAI , Xiongwen YANG , Kuangsheng ZHANG , Yuming WANG , Peiyuan HU
IPC分类号： E21B28/00
摘要： The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.

3. 发明授权

US10450819B2 Tool assembly with a fluidic agitator 有权
公开(公告)号：US10450819B2
公开(公告)日：2019-10-22
申请号：US15820273
申请日：2017-11-21
申请人： CNPC USA Corp. , Beijing Huamei, Inc.
发明人： Ming Zhang , Chris Cheng , Dengxiang Bai , Xiongwen Yang , Kuangsheng Zhang , Yuming Wang , Peiyuan Hu
IPC分类号： E21B28/00
摘要： The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.

4. 发明申请

US20190120016A1 ISOLATION VALVE ASSEMBLY 审中-公开
公开(公告)号：US20190120016A1
公开(公告)日：2019-04-25
申请号：US15791046
申请日：2017-10-23
申请人： CNPC USA Corp.
发明人： Anthony RUSHING , Anthony TRAN
IPC分类号： E21B34/14
CPC分类号： E21B34/14 , E21B2034/002
摘要： The isolation valve assembly includes a ball member stabilized relative to a ceramic ring, an upper ball housing and a lower ball seat with a set of shifting bars, a set of locking bars, and a set of supporting bars. The shifting bars rotate the ball member between opened and closed configurations, while the locking bars and supporting bars stabilize the ball member. The supporting bars are off set from the shifting bars and locking bars, and the supporting bars are anchored to the assembly separate from the locking bars and shifting bars. The actuation of the shifting bars is independent from the locking bars and the supporting bars so that the ball member can be held in the opened or closed configuration with more stability.

5. 发明授权

US11566097B2 Degradable polymer composition for use in downhole tools and method of manufacturing 有权
公开(公告)号：US11566097B2
公开(公告)日：2023-01-31
申请号：US16789946
申请日：2020-02-13
申请人： CNPC USA Corp. , Beijing Huamei Inc.
发明人： Jiaxiang Ren , Peng Cheng , Xu Wang
IPC分类号： C08G18/24 , C08G18/10 , C08G18/42 , E21B33/12 , C08G18/76 , C08G18/73 , B29B7/86
摘要： A chemical composition for a degradable polymeric material includes an isocyanate terminated polyester prepolymer, including prepolymer units as a main chain with a plurality of isocyanates at ends of the main chain, and a cross-linking agent. The isocyanate terminated polyester prepolymer has a structural formula as follows: ONC—R″—NH—[—CO—R—R′″-]n-NH—R″—CNO, wherein R′″ is selected from a group consisting of —O— and —CO—O—R′—O—, wherein R, R′ and R″ are an aryl group or alkyl group and wherein n is a number of prepolymer units corresponding to length of the main chain. The composition degrades at a rate and at a delay depending on temperature and the composition for a component of a downhole tool. The composition has strength and elasticity for a component of a downhole tool.

6. 发明授权

US11248435B1 Frac plug system with a setting mandrel and fluid bypass slots 有权
公开(公告)号：US11248435B1
公开(公告)日：2022-02-15
申请号：US16994429
申请日：2020-08-14
申请人： CNPC USA Corp.
发明人： Jianpeng Yue , Peng Cheng , Yu Liu , Xu Wang , Richard Herrera
IPC分类号： E21B33/128 , E21B33/129 , E21B33/12 , E21B43/26
摘要： The frac plug system includes a setting mandrel, a sleeve member, a sealing member, a cone assembly, and a slip device. The setting mandrel includes a plurality of fluid bypass slots. The sleeve member includes a sleeve body with an abutment end. The setting mandrel has a first configuration without fluid flow through the frac plug system, and a second configuration with fluid flow through the frac plug system. The methods of the present invention include running the frac plug system in the first configuration and the sealing member in an extended position for a first setting stage, moving the setting mandrel to the second configuration with the sealing member in an expanded position, and then returning the setting mandrel to the first configuration for a second setting state. If the placement is wrong, the method includes removing the frac plug system in the first setting stage.

7. 发明授权

US09121254B2 Millable bridge plug system 有权
标题翻译：可变桥塞系统
公开(公告)号：US09121254B2
公开(公告)日：2015-09-01
申请号：US13720797
申请日：2012-12-19
申请人： CNPC USA Corp.
发明人： Marvin Allen Gregory
IPC分类号： E21B33/134 , E21B33/12
CPC分类号： E21B33/134 , E21B33/1204
摘要： A millable bridge plug system includes a mandrel, a sealing member, ring members, cone assemblies, and slip devices. The sealing member, ring members, cone assemblies and slip devices are positioned on and around the mandrel. Ring members abut against an upper end and a lower end of the sealing member. The other sides of the ring members abut against the cone assemblies, and the cone assemblies engage respective slip devices. The cone assemblies have surface interfaces contacting each of the slip devices so that pressure from the cone assemblies is exerted according to contact along the surface interfaces. Each surface interface can have a curvature or be a single radiused surface. Coordination of the surface interfaces control pressure to insure improved fixed positioning in the wellbore.
摘要翻译：可铣式桥塞系统包括心轴，密封构件，环构件，锥形组件和滑动装置。密封构件，环构件，锥形组件和滑动装置定位在心轴上和周围。环形构件抵靠密封构件的上端和下端。环形构件的另一侧抵靠锥形组件，并且锥形组件接合相应的滑动装置。锥形组件具有接触每个滑动装置的表面接口，使得根据沿着表面界面的接触施加来自锥形组件的压力。每个表面界面可以具有曲率或者是单个圆形表面。表面接口的协调控制压力，以确保改善井筒中的固定位置。

8. 发明申请

US20150212226A1 SYSTEM AND METHOD FOR A DOWNHOLE LOGGING TOOL WITH AN ARRAY OF PAIRED RECEIVER ANTENNAS 审中-公开
标题翻译：具有配对接收天线阵列的井下测井工具的系统和方法
公开(公告)号：US20150212226A1
公开(公告)日：2015-07-30
申请号：US14605840
申请日：2015-01-26
申请人： CNPC USA Corp.
发明人： Robert C. SMITH , Jianguo LIU
IPC分类号： G01V3/26 , G01V3/38
CPC分类号： G01V3/28
摘要： The system for measuring electric resistivity around a borehole includes a tool body having a generally cylindrical shape, at least one transmitter at a first transmitter position on the tool body, an array of receivers on the tool body at a set distance from the first transmitter position, and a processor connected to the transmitter and the array. Each transmitter produces a set of five different measurement combinations with various resolution, coarseness, depth of investigation, and verification with the array. The array includes two pairs of receivers, and each receiver is an antenna, such as a coil in a groove with an antenna shield. The array has innovative placement of each receiver of the two pairs of receivers on the tool body relative to the transmitter for a more complete evaluation of a formation around a borehole.
摘要翻译：用于测量钻孔周围的电阻率的系统包括具有大致圆柱形形状的工具主体，在工具主体上的第一发射器位置处的至少一个发射器，在距离第一发射器位置设定距离的工具主体上的接收器阵列以及连接到发射机和阵列的处理器。每个发射器产生一组五种不同的测量组合，具有各种分辨率，粗糙度，调查深度和使用阵列的验证。阵列包括两对接收器，每个接收器是天线，例如具有天线屏蔽的凹槽中的线圈。阵列相对于发射器具有在工具主体上的两对接收器的每个接收器的创新放置，以便对钻孔周围的地层进行更完整的评估。

9. 发明申请

US20140166317A1 MILLABLE BRIDGE PLUG SYSTEM 有权
标题翻译：可铣桥系统
公开(公告)号：US20140166317A1
公开(公告)日：2014-06-19
申请号：US13720789
申请日：2012-12-19
申请人： CNPC USA CORP.
发明人： Marvin Allen GREGORY
IPC分类号： E21B33/134
CPC分类号： E21B33/134 , E21B33/1204
摘要： A millable bridge plug system includes a mandrel having an upper portion and a lower portion, a shearing member attached at said upper portion of the mandrel, a sealing member, ring members, cone assemblies, slip devices, and a cap member at a lower portion of the mandrel. The shear member and the cap member are modular so that one bridge plug interchangeably connects to another bridge plug. The shear members are compatible with cap members of other bridge plugs. The shear member and the cap member further include a locking mechanism for rotational engagement by protrusions on the cap member being fit into the shear member and a locking mechanism for triggering a spring loaded lock into a groove on the cap member.
摘要翻译：可铣的桥塞系统包括具有上部和下部的心轴，在心轴的所述上部附接的剪切构件，密封构件，环构件，锥形组件，滑动装置以及下部的帽构件的心轴。剪切构件和盖构件是模块化的，使得一个桥塞可互换地连接到另一个桥塞。剪切构件与其他桥塞的盖构件兼容。剪切构件和盖构件还包括锁定机构，用于通过盖构件上的突起与装配到剪切构件中的突起进行旋转接合，以及用于将弹簧加载的锁定触发到帽构件上的凹槽中的锁定机构。

10. 发明申请

US20140158361A1 PRESSURE CONTROLLED MULTI-SHIFT FRAC SLEEVE SYSTEM 有权
标题翻译：压力控制多重FRAC套筒系统
公开(公告)号：US20140158361A1
公开(公告)日：2014-06-12
申请号：US14099438
申请日：2013-12-06
申请人： CNPC USA Corp.
发明人： Peng CHENG , Marvin Allen GREGORY
IPC分类号： E21B43/26 , E21B43/16
CPC分类号： E21B43/26 , E21B23/006 , E21B23/04 , E21B34/14 , E21B2034/007
摘要： A frac sleeve system includes an outer sleeve with openings, an inner sleeve with ports, a pressure seat, a bottom locking device and a spring device. In a closed configuration of the inner sleeve, the openings and ports are not aligned for any fluid connection. In an opened configuration, at least one opening is aligned with at least one port for a fluid connection through the system. The inner sleeve shifts back and forth between configurations according to the pressure seat and the spring. The interaction of a guide pin on the outer sleeve and the guide slot on the inner sleeve controls the rotational and longitudinal movement of the inner sleeve along the common axis of the inner sleeve and outer sleeve so that there is unlimited shifting between configurations. The locking devices and spring device are also reuseable for the multiple shifting.
摘要翻译：压裂套筒系统包括具有开口的外套筒，具有端口的内套筒，压力座，底锁定装置和弹簧装置。在内套筒的封闭构造中，开口和端口不对准任何流体连接。在打开的构造中，至少一个开口与至少一个端口对准，用于通过系统的流体连接。内套筒根据压力座和弹簧在构造之间来回移动。外套筒上的导销和内套筒上的导槽之间的相互作用控制着内套筒沿着内套筒和外套筒共同轴线的旋转和纵向移动，从而在配置之间进行无限制的换档。锁定装置和弹簧装置也可以重复使用以进行多次换档。

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