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1. 发明授权

US5158264A Parallel expanding gate valve 失效
标题翻译：并联扩口阀
公开(公告)号：US5158264A
公开(公告)日：1992-10-27
申请号：US660348
申请日：1991-02-22
申请人： Tri C. Le , Paul L. Tasson , Scott K. Beall
发明人： Tri C. Le , Paul L. Tasson , Scott K. Beall
IPC分类号： F16K3/18
CPC分类号： F16K3/184
摘要： Apparatus and methods for sealing a parallel expanding gate valve are provided using upper and lower wedges separate from and located between the gate segments. The gate segments are symmetrical with respect to each other and have inner upper and lower tapered surfaces. Inclined surfaces on the upper wedge press the inner upper tapered surfaces of the gate segments. The inner lower tapered surfaces of the gate segments also press against inclined wedging surfaces on the lower wedge. This wedging action forces the gate segments outward with respect to each other and with substantial force against sealing assemblies to close and seal the gate valve.
摘要翻译：使用与栅极段之间分离并位于栅极段之间的上部和下部楔形物来提供用于密封平行扩大闸阀的装置和方法。栅极段相对于彼此对称并且具有内部上部和下部锥形表面。上楔形物上的倾斜表面压迫门段的内上锥形表面。门段的内下锥形表面也压在下楔形物上的倾斜楔形表面上。这种楔形作用迫使闸门段相对于彼此向外，并且对密封组件施加相当的力以关闭和密封闸阀。

2. 发明授权

US5114158A Packing assembly for oilfield equipment and method 失效
标题翻译：油田设备和方法的包装总成
公开(公告)号：US5114158A
公开(公告)日：1992-05-19
申请号：US615585
申请日：1990-11-19
申请人： Tri C. Le
发明人： Tri C. Le
IPC分类号： E21B33/00 , E21B33/03 , E21B33/04 , F16L55/132
CPC分类号： F16L55/132 , E21B33/03 , E21B33/04 , E21B2033/005
摘要： An improved packing assembly is provided for forming a metal-to-metal sealing engagement between an outer cylindrical surface and an inner cylindrical surface within downhole or surface hydrocarbon recovery equipment having an axially extending flow path therein. The packing assembly includes an outer seal ring and a inner seal ring with upper and lower tapered surfaces, an upper energizing ring and a lower energizing ring each having tapered surfaces for sliding engagement with a tapered surface of the seal rings, and an interconnection member for limiting axial movement of the energizing rings. Projections on each of the seals rings are preferably provided for obtaining substantially line contact sealing engagement with the respective cylindrical surface, and each of these projections is spaced radially opposite and at substantially the same axial depth as a tapered surface on a respective upper or lower energizing ring, such that each of the projections is forced radially into sealing engagement with the corresponding cylindrical surface by a substantially equal force. According to the method of the present invention, the entire assembly is formed and may be lowered downhole to minimize installation costs, and the energizing rings thereafter moved axially together by the application of mechanical or hydraulic force to set the sealing assembly.
摘要翻译：提供了一种改进的包装组件，用于在井下的外圆柱形表面和内圆柱形表面之间形成金属对金属密封接合，或者在其内具有轴向延伸的流动路径的表面碳氢化合物回收设备。包装组件包括外密封环和具有上锥形表面和下锥形表面的内密封环，上加力环和下加力环，每个具有锥形表面，用于与密封环的锥形表面滑动接合;以及互连构件，限制通电环的轴向运动。优选地，每个密封环上的突出物被设置用于获得与相应的圆柱形表面的基本线接触密封接合，并且这些突起中的每一个在相应的上部或下部激励下与锥形表面径向相对并且基本相同的轴向深度间隔开使得每个突起通过基本相等的力径向地与相应的圆柱形表面密封接合。根据本发明的方法，整个组件形成并且可以在井下降低以最小化安装成本，并且通电环随后通过施加机械或液压力而轴向移动以设置密封组件。

3. 发明授权

US5011110A BOP seal with improved metal inserts 失效
标题翻译： BOP密封带改进的金属插件
公开(公告)号：US5011110A
公开(公告)日：1991-04-30
申请号：US568600
申请日：1990-08-16
申请人： Tri C. Le
发明人： Tri C. Le
IPC分类号： E21B33/06
CPC分类号： E21B33/062
摘要： A blowout preventer is provided with an improved sealing assembly for sealing engagement with a pipe extending through the blowout preventer into a well bore. The sealing assembly includes an elastomeric seal and a plurality of circumferentially spaced metal inserts within the seal for substantially minimizing or preventing extrusion of the seal under high fluid pressure. The BOP be reliably used for sealing engagement with pipes of varying diameters. Each insert has a substantially I-shaped configuration with an upper flange, a lower flange, and a rib fixedly interconnecting the flanges. A slot is provided within at least one of the flanges and forms a cavity for receiving a male interconnecting member extending circumferentially from an adjacent one of the inserts, such that the circumferentially spaced inserts are interconnected to minimize extrusion gaps between the inserts and to better enable the sealing assembly to form a positive seal with the pipe.

4. 发明授权

US5064164A Bop seal with improved metal inserts 失效
标题翻译： BOP密封带改进的金属插件
公开(公告)号：US5064164A
公开(公告)日：1991-11-12
申请号：US641856
申请日：1991-01-16
申请人： Tri C. Le
发明人： Tri C. Le
IPC分类号： E21B33/06
CPC分类号： E21B33/062
摘要： A blowout preventer is provided with an improved sealing assembly for sealing engagement with a pipe extending through the blowout preventer into a well bore. The sealing assembly includes an elastomeric seal and a plurality of circumferentially spaced metal inserts within the seal for substantially minimizing or preventing extrusion of the seal under high fluid pressure. The BOP be reliably used for sealing engagement with pipes of varying diameters. Each insert has a substantially I-shaped configuration with an upper flange, a lower flange, and a rib fixedly interconnecting the flanges. A slot is provided within at least one of the flanges and forms a cavity for receiving a male interconnecting member extending circumferentially from an adjacent one of the inserts, such that the circumferentially spaced inserts are interconnected to minimize extrusion gaps between the inserts and to better enable the sealing assembly to form a positive seal with the pipe.
摘要翻译：防喷器设置有改进的密封组件，用于与延伸穿过防喷器的管道密封接合到井眼中。密封组件包括弹性体密封件和密封件内的多个周向间隔开的金属插入件，用于在高流体压力下基本上最小化或防止密封件的挤出。 BOP可靠地用于与不同直径的管道的密封接合。每个插入件具有基本上为I形的构造，其具有上凸缘，下凸缘和固定地互连凸缘的肋。在所述凸缘中的至少一个中设置槽，并且形成用于接收从相邻的所述插入件周向延伸的阳互连构件的空腔，使得周向间隔开的插入件互连以最小化插入件之间的挤压间隙，并且更好地实现密封组件与管道形成正密封。

5. 发明授权

US4575106A High pressure sealing connection with metal seal 失效
标题翻译：高压密封连接与金属密封
公开(公告)号：US4575106A
公开(公告)日：1986-03-11
申请号：US653104
申请日：1984-09-21
申请人： F. Harold Hollister , Tri C. Le , Danny S. Meyer
发明人： F. Harold Hollister , Tri C. Le , Danny S. Meyer
IPC分类号： F16J15/08 , F16L23/20
CPC分类号： F16L23/20 , F16J15/0887
摘要： A high pressure sealing connection for sealing between coaxially aligned members (22, 10) which are connected by metal bolt means having a different coefficient of thermal expansion from the aligned members. The connection comprises a metallic sealing ring (40) having at its largest external diameter a curved arcuate peripheral surface 52 characterized by a center of curvature which is co-diametral with the center of the seal ring but may be of greater or lesser radius than the radius of the ring. At its inner periphery, upper and lower flanges (61, 62) extend inwardly and perpendicularly to the axis of the ring. The coaxially aligned members (22, 10) are provided with recesses defined by opposed internal frusto-conical sealing surfaces (41, 42) at their adjoining ends, each tapering inwardly from the end of the member to an annular shoulder (43, 44) in the bore of the aligned member. The frusto-conical surfaces (41, 42) are of equal taper in the range of 5 degrees to 20 degrees. Drawing the coaxially aligned members together by suitable bolt means (31) results in a compression of ring (40) and a sealing relationship between the ring and the aligned members which is enhanced by fluid pressure energization. The internal flanges (61, 62) significantly increase the elastic zone of the ring to include the flanges themselves which continue to urge the seal ring in sealing engagement with the aligned members even after high pressure or temperatures have caused a deformation of the sealing ring or the aligned members. The curved outer surface of the seal ring in conjunction with the tapered frusto-conical surfaces of the seal grooves permits the points of sealing contact to roll as the geometry changes with differential thermal expansion.
摘要翻译：用于在同轴对准的构件（22,10）之间进行密封的高压密封连接，其通过金属螺栓装置连接，具有与对准构件不同的热膨胀系数。连接件包括金属密封环（40），其具有最大的外径，弯曲的弧形外围表面52，其特征在于曲率中心与密封环的中心是共径的，但可以具有比该密封环的中心更大或更小的半径环的半径。在其内周缘处，上凸缘和下凸缘（61,62）向内并且垂直于环的轴线延伸。同轴对齐的构件（22,10）设置有在其相邻端部处由相对的内部截头圆锥形密封表面（41,42）限定的凹部，每个锥形密封表面从构件的端部向内逐渐向内延伸到环形肩部（43,44）在对准的构件的孔中。截头圆锥形表面（41,42）在5度至20度的范围内具有相等的锥度。通过适当的螺栓装置（31）将同轴对齐的构件拉伸在一起，导致环（40）的压缩以及环和对准构件之间的密封关系，这通过流体压力通电而增强。内部凸缘（61,62）显着地增加了环的弹性区域以包括法兰本身，即使在高压或高温引起密封环的变形或继续推动密封环与对准的构件密封接合之后，对齐的成员。密封环的弯曲外表面与密封槽的锥形截头圆锥形表面结合，随着几何形状随热差膨胀的不同而允许密封接触点滚动。

6. 发明授权

US4556224A Crossover seal assembly 失效
标题翻译：交叉密封组件
公开(公告)号：US4556224A
公开(公告)日：1985-12-03
申请号：US637994
申请日：1984-08-06
申请人： Tri C. Le
发明人： Tri C. Le
IPC分类号： E21B33/00 , E21B33/03 , E21B33/08 , F16J15/08 , F16J15/26 , F16J15/18
CPC分类号： F16J15/26 , E21B33/03 , E21B33/08 , F16J15/0887 , E21B2033/005
摘要： A crossover seal assembly (44) for sealing the annulus between a well casing (16) and tubing head (22). The assembly includes spaced pairs of upper and lower metal seal rings (60 and 72, 108 and 120) having matching frusto-conical wedging surfaces (70 and 74, 118 and 122) which interact when an axial compressive force is applied to thereby effect a controlled radial expansion of the seal rings to sealingly engage the inner and outer cylindrical surfaces (48, 47) of the tubing head (22) and well casing (16). The axial compressive force is mechanically applied by a plurality of holddown lock screws (90) which interact through tapered conical tips (94) to energize the crossover seal assembly (44).
摘要翻译：一种用于密封井套管（16）和油管头（22）之间的环的交叉密封组件（44）。组件包括具有匹配的截头圆锥形楔形表面（70和74,118和122）的上下金属密封环（60和72,108和120）的间隔开的一对，当施加轴向压缩力时相互作用，从而影响密封环的受控的径向膨胀以密封地接合管头（22）和井套（16）的内圆柱形表面和外圆柱形表面（48,47）。轴向压缩力通过多个通过锥形锥形尖端（94）相互作用的压紧锁定螺钉（90）而机械地施加，以激励交叉密封组件（44）。

7. 发明授权

US4650226A Holddown screw 失效
标题翻译：锁定螺丝
公开(公告)号：US4650226A
公开(公告)日：1987-03-17
申请号：US845912
申请日：1986-03-31
申请人： Brett A. Babbitt , Tri C. Le
发明人： Brett A. Babbitt , Tri C. Le
IPC分类号： E21B33/04 , F16L25/06 , F16L19/00
CPC分类号： F16L25/065 , E21B33/04
摘要： A holddown screw 10 which features a shank 23 and contact nose 22 of separate construction. The contact nose 22 is provided with a flat bevelled contact surface 32 of predetermined angle to the axis of the screw selected to correspond to the angle of the camming surface 17a with which it is designed to cooperate. The contact nose is carried on the shank 23 and is adapted for relative rotation thereon as the screw is rotated. The back end of the contact nose is provided with an annular surface 22a disposed radially to the longitudinal axis of the screw and adapted to engage an annular shoulder 35 of the shank 23 in flat co-planar relationship therewith. As the screw is rotated and driven inwardly to contact the wellhead component 14 to be actuated, the flat contact surface 32 of the nose of the screw will engage in sliding contact with the cooperating camming surface 17a. Since the contact nose does not rotate against the cooperating camming surface 17 a of the wellhead component and engages over a large contact area, contact stresses are reduced and susceptibility to galling is minimized. The shank 23 includes an externally threaded section 23a adjacent its outer end which receives a packing nut 25. The packing nut 25 is externally threaded whereby it may be threaded into the bore 11 provided in a wellhead structure 12 and used to energize a packing assembly sleeved about the shank 23 by compressing the assembly against a shoulder provided in the bore 11.
摘要翻译：按压螺钉10，其具有柄23和分离结构的接触鼻22。接触鼻22设置有与螺杆的轴线成预定角度的平坦的倾斜接触表面32，其被选择为对应于被设计为配合的凸轮表面17a的角度。接触鼻子被承载在柄23上，并且当螺钉旋转时适合于其上的相对旋转。接触鼻的后端设置有径向地设置在螺钉的纵向轴线上的环形表面22a，并且适于以平坦的共面关系与柄23的环形肩部35接合。当螺杆旋转并向内驱动以接触要被致动的井口部件14时，螺钉的鼻部的平坦接触表面32将与配合的凸轮表面17a滑动接触。由于接触鼻不旋转靠在井口部件的配合的凸轮表面17a上并且接合在大的接触区域上，所以接触应力减小，并且对磨损的敏感性最小化。柄23包括邻近其外端的外螺纹部分23a，该外螺纹部分接收填料螺母25.填料螺母25是外螺纹的，从而可将螺纹部分螺纹拧入设置在井口结构12中的孔11中，并用于对套筒组件通过将组件压靠在设置在孔11中的肩部上而围绕柄23。

8. 发明授权

US4650225A Hydraulic holddown screw with mechanical retention means 失效
公开(公告)号：US4650225A
公开(公告)日：1987-03-17
申请号：US846172
申请日：1986-03-31
申请人： Tri C. Le , F. Harold Hollister
发明人： Tri C. Le , F. Harold Hollister
IPC分类号： E21B33/00 , E21B33/04 , F16L37/62 , F16L19/00
CPC分类号： E21B33/04 , F16L37/62 , E21B2033/005 , Y10S285/92
摘要： A holddown screw assembly 10 which features a shaft 33, an energizer screw 39 and a detachable contact nose 20 adapted to be assembled in coaxial alignment in a radial bore in a wellhead structure. The shaft is provided with a passage 40 extending from its outer end as the holddown screw is normally used in a wellhead installation to a cross passage 41 at the other end of the shaft. Also, at its outer end, a fitting 32 is attached to facilitate connection to a hydraulic supply line 28. An annular bearing flange 35 is provided on the shaft near its outer end. A packing nut 31 and a set of packing rings 34 are sleeved about the shaft 33 with the nut disposed in abutting relation to the bearing flange 35 where it is held fixed but rotatable thereagainst by means 36. The packing nut is threaded into a threaded section of a bore 11 such as may be provided in the flange 12 of a casing spool 13. By turning the packing nut, the packing ring set may be compressed against a shoulder 37 in the bore 11. The energizer screw is also threaded into a threaded section of the bore 11 and is provided with passage means 44 extending in the axial direction therethrough. The contact nose 20 is attached to the energizer screw 39 in a manner which premits a limited axial movement of the contact nose relative to the shaft 33. Accordingly, hydraulic pressure communicated to the outer end of the holddown screw 10 will be communicated through the shaft 33 and energizer screw 39 to be applied against the contact nose 20 to drive it against the object to be held down or seal assembly 14 to be energized. By communication of hydraulic pressure to a plurality of such screws, the screws 10 may be energized simultaneously. For each holddown screw 10 a mechanical connection is provided between the shaft 33 and energizer screw 39 whereby axial rotation of the shaft 33 will effect the threaded advancement of the energizer screw to drive the contact nose and thereby effect a mechanical actuation of the holddown screw. This capability is available as an alternative to hydraulic means of energizing the holddown screw 10 and also as a means for mechanically retaining the preload after it has been applied hydraulically.

9. 发明授权

US4516752A Mechanically preloaded packing assembly 失效
标题翻译：机械预装包装组件
公开(公告)号：US4516752A
公开(公告)日：1985-05-14
申请号：US570110
申请日：1984-01-12
申请人： Brett A. Babbitt , Tri C. Le
发明人： Brett A. Babbitt , Tri C. Le
IPC分类号： F16J15/18 , F16K41/04 , F16K31/44 , F16J15/00
CPC分类号： F16J15/186 , F16K41/04
摘要： A pressure energized mechanically preloaded packing assembly (48, 68) of a high pressure gate valve (10). The packing assemblies are positioned in an annular space about the valve stems (36, 64) for sealing between the valve stems and bonnet (38) or valve body (12). The packing assemblies include an energizer ring (78) which is positioned within the annular space having an outwardly facing precision cut frusto-conical end surface (82) relative to the flow passage (16, 18) of the valve. A plurality of Belleville springs or spring washers (98) with a generally frusto-conical shape are positioned adjacent and in concave relation to the outer end (82) of the energizer ring. The cone angle of the spring washers are smaller than the cone angle of the energizer ring. The packing assembly further includes at least one packing ring set positioned outside the spring washers (106, 108) which includes a stack of plastic packing elements (110) which are sandwiched between a pair of retainer rings (112, 114). A packing gland nut (118) is disposed in contiguous relation to the packing ring set and is externally threaded for accommodating its connection with the valve body whereby the gland nut is axially adjustable to apply axial pressure on the packing ring set and spring washers. The spring washers (98) are compressed until their cone angle matches the cone angle of the energizer ring (78) such that the spring washers exert a predetermined preload onto the packing ring set to provide a low pressure seal between the stem and valve body.
摘要翻译：一种高压闸阀（10）的受压力机械预加载的包装组件（48,68）。包装组件位于围绕阀杆（36,64）的环形空间中，用于在阀杆和阀盖（38）或阀体（12）之间进行密封。包装组件包括一个位于环形空间内的增力环（78），该环形空间具有相对于阀的流动通道（16,18）具有向外的精确切割的截头圆锥形端面（82）。具有大致截头圆锥形状的多个贝氏弹簧或弹簧垫圈（98）被定位成邻近并且与增力环的外端（82）成凹形关系。弹簧垫圈的锥角小于增力环的锥角。所述包装组件还包括定位在所述弹簧垫圈（106,108）外部的至少一个密封环组件，所述填料环包括夹在一对保持环（112,114）之间的一堆塑料填料元件（110）。填料压盖螺母（118）与填料环组相邻地设置，并且是外螺纹的，用于容纳其与阀体的连接，由此压盖螺母可轴向调节以在衬垫环组件和弹簧垫圈上施加轴向压力。弹簧垫圈（98）被压缩直到它们的锥角与加力环（78）的锥角匹配，使得弹簧垫圈对预定的预载荷施加到填料环组上，以在杆和阀体之间提供低压密封。

10. 发明授权

US4468039A Packing ring cartridge with adjusting screws 失效
标题翻译：带调节螺钉的包装盒
公开(公告)号：US4468039A
公开(公告)日：1984-08-28
申请号：US557802
申请日：1983-12-05
申请人： Tri C. Le , Danny S. Meyer , John B. Williams
发明人： Tri C. Le , Danny S. Meyer , John B. Williams
IPC分类号： F16J15/18 , F16K41/02 , F16J15/12
CPC分类号： F16K41/02 , F16J15/186
摘要： A pressure energizable packing assembly (47) for sealing the stem and valve body of a high pressure valve. The assembly comprises one or more sets (60, 61) of packing rings (62) which are adapted to be compressed between a pair of retainer rings (64, 65) and radially expanded into sealing engagement with the valve stem (45) and valve body (11). The retainer rings are actuated by Belleville springs (70) in a preloaded condition of the assembly and additionally by fluid pressure in the valve body after installation. The packing assembly includes an adapter ring plug (71) for accommodating its connection in the valve body. The packing assembly is assembled as a cartridge and held together by screws (77) which extend through the adapter ring (71), the outer retainer ring (64), the packing ring sets (60, 61) and their separating spacer ring (63), and which are anchored in the inner retainer ring (65). The screws can be adjustably tightened to place the cartridge in a desired preloaded condition after installation in a packing chamber (46a, 46b). The packing assembly is adapted for use as a cartridge in packing chambers without concern for the effect of tolerance "stack-up" in the axial dimension and without adjustment in the number of Belleville springs.
摘要翻译：一种用于密封高压阀的阀杆和阀体的可加压激励的包装组件（47）。该组件包括一组或多组填料环（62），其适于压缩在一对保持环（64,65）之间，并且径向扩张成与阀杆（45）和阀门密封接合身体（11）。保持环在组件的预加载状态下由贝氏弹簧（70）致动，另外在安装后还通过阀体中的流体压力。包装组件包括用于容纳其在阀体中的连接的适配器环塞（71）。包装组件被组装成盒并通过延伸穿过适配环（71），外保持环（64），密封圈组（60,61）及其分隔间隔环（63）的螺钉（77）组装在一起），并且其被锚固在内部保持环（65）中。可以可调节地拧紧螺钉，以便在安装到包装室（46a，46b）中之后将盒放置在期望的预加载状态。包装组件适于在包装室中用作筒，而不考虑在轴向尺寸上的公差“堆叠”的影响，并且不调整Belleville弹簧的数量。

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