| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Concentric tubing completion system | US09954458 | 2001-09-14 | US20020074124A1 | 2002-06-20 | Christopher E. Cunningham; Christopher D. Bartlett; Marcus A. Smedley; Russell E. McBeth; Robert B. Baten |
| The concentric tubing completion system of the present invention comprises a surface Christmas tree which is located on a surface structure, a tieback connector which is secured to a mudline wellhead that is installed at the upper end of a subsea well bore, a mudline tubing hanger which is supported in the tieback connector, and a pair of concentric tubing strings which are suspended from corresponding tubing hangers in the surface Christmas tree and connected to the mudline tubing hanger. The annulus between the concentric tubing strings communicates with a number of passages in the mudline tubing hanger which are connected to the tubing annulus below the mudline tubing hanger. Thus, lift gas or other fluids may be communicated between the surface christmas tree and the tubing annulus through this annulus between the concentric tubing strings. | ||||||
| 182 | Flow completion apparatus | US09815430 | 2001-03-22 | US20020000315A1 | 2002-01-03 | Richard D. Kent; Michael R. Tierney; Gregory L. Glidden; Christopher E. Cunningham; Christopher D. Bartlett |
| A flow completion apparatus for controlling the flow of fluid through a tubing string which extends into a well bore and defines a tubing annulus surrounding the tubing string, the flow completion apparatus comprising a wellhead housing which is installed at an upper end of the well bore; a tubing spool which is connected over the wellhead housing and which includes a central bore that extends axially therethrough, a production outlet which communicates with the central bore, and an annulus passageway which communicates with the tubing annulus; a tubing hanger which is supported in the central bore, is connected to an upper end of the tubing string, and includes a production bore which extends axially therethrough and a production passageway which communicates between the production bore and the production outlet; a first closure member which is positioned in the production bore above the production passageway; and a first annular seal which is positioned between the tubing hanger and the central bore above the production passageway; wherein the tubing spool further comprises a workover passageway which extends between the annulus passageway and a portion of the central bore that is located above the first seal, and the tubing hanger further comprises an annulus bore which extends between the workover passageway and the top of the tubing hanger; whereby fluid communication between the tubing annulus and the top of the tubing hanger may be established through the annulus passageway, the workover passageway and the annulus bore. | ||||||
| 183 | METHOD AND APPARATUS FOR DRILLING AN OFFSHORE UNDERWATER WELL | US09275346 | 1999-03-24 | US20010047869A1 | 2001-12-06 | HANS PAUL HOPPER; DAVID GARNHAM |
| A method of drilling an offshore underwater well comprising the steps of installing a riser conduit (5) so that it is substantially vertically supported at a production deck (1,25). The riser conduit (5) deviates progressively further from the vertical with increasing sea depth, so that its end can be anchored at the seabed (6) by a skid (7) either at an oblique angle so that drilling into the seabed can be carried out at the oblique angle, or horizontally, so that the riser conduit can extend some considerable distance across the seabed (6) before drilling is carried out. | ||||||
| 184 | Internal gate valve for flow completion systems | US09815436 | 2001-03-22 | US20010042618A1 | 2001-11-22 | Christopher E. Cunningham; Christopher D. Bartlett; Thomas L. Hergarden; Philip S. Hernandez; Michael E. Wilson JR. |
| A gate valve for a component which includes an elongated body and a flow passage extending generally longitudinally through the body, the flow passage including a generally lateral first branch connected to a generally longitudinal second branch. The gate valve comprises a gate which is moveable generally longitudinally across the first branch between an open position in which a hole in the gate is aligned with the first branch and a closed position in which the hole is offset from the first branch; a conduit which extends through the body from the gate; an actuating mechanism positioned in the conduit for moving the gate from a first position to a second position; and a return biasing mechanism for moving the gate from the second position to the first position; wherein one of the first and second positions corresponds to the open position of the gate and the other position corresponds to the closed position of the gate; and wherein the conduit extends generally longitudinally through the body. | ||||||
| 185 | Multi-tool system that can be used for connecting pipes | US131626 | 1998-08-10 | US6154953A | 2000-12-05 | Calum MacKinnon |
| It is of the type comprising a multi-tool system for inspecting, cleaning and replacing members in an oil installation and is one which comprises a support (8) on which there are mounted means (9, 10, 17) capable of laterally shifting at least two devices (22, 29) in opposite directions, it being possible for at least one of said devices (29) to be rotated about one of said directions. | ||||||
| 186 | Engageable metal seal pressure balanced stab | US788688 | 1997-01-24 | US5988281A | 1999-11-23 | Larry D. Douglas; Jon D. Buck |
| The present invention provides for the connection of a pressure balanced stab and a manifold in which offsetting forces maintained on the stab allow it to remain in an inserted state within the manifold without the use of a significant amount of force to maintain the connection. The offsetting forces are contained within the stab through the use of C-ring seals on the stab, which are activated by a downward force created by an actuator. The compression of the C-rings is delayed until insertion is complete, therefore allowing an installation which does not damage the seals. The O-ring designs, used in prior pressure balanced stabs, are likely to be damaged upon insertion of the stab into the receptacle. The damage to the O-ring seals takes place when the O-ring, partially protruding from the stab, makes contact with the surface of the receptacle in such a manner that causes the O-ring seal to tear or become manipulated in a way that creates an ineffective seal. The preferred embodiment allows for activation of the C-ring seal to take place following insertion of the stab within the receptacle and therefore the C-ring does not encounter interference from the surface of the receptacle until it is activated. In addition to the prevention of damage to the C-ring seal, the preferred embodiment allows for the seal to withstand greater pressure than prior O-ring designs. | ||||||
| 187 | Integrated base for oil drilling and production work | US233409 | 1994-04-26 | US5441112A | 1995-08-15 | Eduardo de Melo Sanches; Samir P. Awad; Cezar Augusto Silva Paulo; Orlando Jose Soares Ribeiro |
| An integrated oil drilling and producing base includes a single guiding funnel for guiding a wet Christmas tree into the proper position on a high pressure well head. The single guiding funnel has a cylindrical downcomer for resting directly on the high pressure well head, at least one cradle on the guiding funnel and at least one pipeline terminal hingedly mounted on said at least one cradle. The guiding funnel has a plurality of slits for allowing passage of a plurality of pipelines therethrough for connection to a respective terminal on the funnel and for connection of each terminal to the wet Christmas tree. | ||||||
| 188 | ROV installable junction plate and method | US066877 | 1993-05-25 | US5333691A | 1994-08-02 | James L. Dean; Rodney K. Seto; Sheldon L. Kovit |
| An improved system connects subsea coupling components mounted to a movable junction plate assembly and a fixed junction plate assembly of a subsea petroleum recovery tree. The connecting handle on a movable junction plate assembly is biased for locking engagement with a movable plate to manipulate the movable junction plate assembly, but may be unlocked upon engagement with the fixed junction plate assembly to permit rotation of the connecting handle and thereby threadedly connect the junction plate assemblies. An extension arm assembly for supporting the movable junction plate assembly may be pivotably mounted to a control pod assembly, with the extension arm being extendible and contractible to allow an ROV or diver to move the junction plate assembly within a preselected zone of control. | ||||||
| 189 | Subsea wellhead connections | US11018 | 1993-01-29 | US5320175A | 1994-06-14 | Paul B. Ritter; Carl G. Langner; William H. Petersen; Ray R. Ayers |
| A diverless and guidelineless method to connect two subsea flowlines by a jumper assembly is provided. Pivotable stabs and fluid connection means are provided on each end of the jumper assembly. The stabs mate into receptacles located on the subsea flowline connections. The flowline is preferably lowered vertically and hinged over while sequentially landing the two pivotable stabs into their respective stab receptacles. | ||||||
| 190 | Flowline safety joint | US861283 | 1992-03-31 | US5248166A | 1993-09-28 | Robert L. Wilkins |
| A flowline safety joint having a tubular member supported from a subsea tree structure, an elbow having a horizontal passage therethrough and a vertical passage extending upwardly from said horizontal passage, a stab-in male member having a leading end, a trailing flowline connecting end, a passage therein and terminating short of said leading end and a vertical opening in said male member communicating with said vertical passage through said elbow when installed within said horizontal passage, and a flat surface surrounding the opening of said vertical opening in said male member. A seal providing a metal-to-metal seal between the lower end of the tubular member and the flat surface on said male member, and a swivel member for connecting said elbow to said tubular member, said swivel member including an element increasing the downward loading of said tubular on said seal to control the loading of said male member at which it releases from said horizontal passage through said elbow. | ||||||
| 191 | Submarine wellhead | US835554 | 1992-02-14 | US5213162A | 1993-05-25 | Midel Iato |
| A submarine wellhead (10) for producing wells, including a hollow body (14) mounted in a water-tight fashion on a well (16) configured to receive a suspension device (30) equipped with a production column (26) designed to be lowered down into the well, which body (14) is also equipped with an outlet port (20) for the oil coming up from the well through the production column (26), hydraulic flow between the production column (26) and the outlet port (20) occurring through the suspension device (30), and hydraulic flow being ensured regardless of the rotation position of the suspension device (30) in relation to the body (14). | ||||||
| 192 | Flexible flowline connection to a subsea wellhead assembly | US114474 | 1987-10-28 | US4820083A | 1989-04-11 | Johnce E. Hall |
| A flexible flowline support is disclosed, which can be connected to a subsea wellhead assembly preventing the flowline from being bent in too short of a radius. A flowline support base is connectable by way of guidelines to the subsea wellhead assembly and includes a flowline connector having a first end upwardly disposed and connected to the flowline support base and having a second end operatively connectable to the subsea wellhead assembly. A cradle assembly is mounted to the flowline support base adjacent the first end of the flowline connector and has an upper trough-like surface over which the flexible flowline can lay for connection to the first end of the flowline connector. | ||||||
| 193 | Remotely installing a tubular string | US934285 | 1986-11-24 | US4797029A | 1989-01-10 | William S. Cowan; Edward M. Galle, Jr. |
| Connecting a tubular string to a subsea installation. The tubular string includes a short first section and a longer second section. The length of the first section is approximately one-half the depth between the lowermost guide ring of a fixed platform and the top of the subsea installation. One end of the first section is provided with a connector and the other end with a connector and a funnel. The first section is lowered through the guide rings and connected to the subsea installation. One end of the second section is provided with a connector and the second section is lowered through the guide rings and into the funnel. Since the two adjacent ends are about midway between the subsea installation and the lowermost guide ring, the adjacent ends are easily bent into alignment by the camming action resulting when the end of the second section slides along the inside tapered surface of the funnel when the axes of the platform and subsea installation are offset. | ||||||
| 194 | Apparatus for installing a flowline section near the seabed | US12093 | 1987-02-06 | US4717287A | 1988-01-05 | Nils K. Laursen |
| An apparatus for securing a flowline to a structure near the seabed comprises a vertically oriented guide funnel placed atop a guide tube that is provided with a helical shoulder cooperating with an alignment key mounted on the flowline. During installation the flowline is stabbed into the guide funnel and guide tube thereby causing the alignment key to slide along the shoulder until a pair of hinge pins mounted on the flowline have entered into a pair of slots in the wall of the guide tube. Subsequently the flowline is hinged down to a horizontal position. | ||||||
| 195 | Apparatus for installing a flowline section near the seabed | US757707 | 1985-07-22 | US4676696A | 1987-06-30 | Nils K. Laursen |
| An apparatus for securing a flowline to a structure near the seabed comprises a vertically oriented guide funnel placed atop a guide tube that is provided with a helical shoulder cooperating with an alignment key mounted on the flowline. During installation the flowline is stabbed into the guide funnel and guide tube thereby causing the alignment key to slide along the shoulder until a pair of hinge pins mounted on the flowline have entered into a pair of slots in the wall of the guide tube. Subsequently the flowline is hinged down to a horizontal position. | ||||||
| 196 | Guilelineless subsea completion system with horizontal flowline connection | US761514 | 1985-08-01 | US4629003A | 1986-12-16 | Benton F. Baugh |
| An oil and gas completion system for landing and placement on an oceam floor without wire rope guidelines and in a nonoriented fashion including the end of a flowline laid along the ocean floor which is terminated substantially horizontally in a flowline receiving structure on the periphery of the completion system outside and below a specified circular boundary and a Christmas Tree having a mating end of a second flowline section inside the specified circular boundary and the extension of the second flowline section extending from the back of the second flowline section across to the other side of the tree being above said circular boundary such that the Christmas Tree is free to be rotated to an oriented position and one of the two flowline sections can then be moved substantially horizontally thru the boundary area for connection with the other section. | ||||||
| 197 | Subsea drilling and production system for use at a multiwell site | US663006 | 1984-10-19 | US4625806A | 1986-12-02 | William H. Silcox |
| A subsea drilling and production system where the production unit is removably connected onto a drilling template and operatively connected to one or more Christmas trees so that the production unit may be disconnected from the trees and removed from the template without first removing any of the trees and so that any of the trees may be disconnected from the production unit and removed from the underwater site without removing the production unit. | ||||||
| 198 | Device for connecting a collecting head input to the well head output by means of a mobile connector connected to a looped duct | US631227 | 1984-07-16 | US4612994A | 1986-09-23 | Yvon Castel; Michel Iato |
| A device for connecting a collecting head input with the well head output by means of a movable connector connected to a looped duct, comprising a flexible connecting coupling formed by two horizontal loops surrounding the distribution block of the collecting head at different levels and connected by a vertical duct portion. The movable connector, for guiding same towards a receptacle-connector, rests on a fork integral with a lever hinged by means of a swivel joint, an intermediate point of the lever resting on one end of a hydraulic cylinder provided with a swivel joint, the other end of the hydraulic cylinder resting on the connection module being hinged by means of a swivel joint, the connector comprises at its periphery radical guide rollers co-operating with inclined ramps of the receptacle and grouped in pairs of superimposed rollers, of which the lower roller has a diameter less than that of the upper roller. With the loop configuration of the duct and the device for guiding the connector, the stresses in the duct due to the rotating movement of the connector during alignment of its axes with that of the receptacle may be reduced. | ||||||
| 199 | Flowline connector seal | US399007 | 1982-07-16 | US4579372A | 1986-04-01 | Charles D. Morrill |
| A flangeless, disc-like seal plate is disclosed for insertion between opposing flowline hubs for sealingly connecting, blocking or rerouting fluid flow between various fluid carrying lines within said flowline hubs. For connecting flow lines, straight throughbores within the seal plate are provided with V-seals in channels on said seal plate around the throughbores, as well as O-ring seals around said V-seals and another O-ring near the periphery of the disc itself. No seals or seal grooves are necessary on the hub faces. For connecting hydraulic control lines, the seal plate is equipped with transverse channels interconnecting various throughbores but may also be provided with blind ports for totally blocking off certain control lines at the plate. Within said throughbores, fluid diverter plugs are inserted which are either equipped with protruding caps for opening up corresponding check valves housed within hub lines or flush plugs such that said check valves remain closed after clamp-up. Through this arrangement various lines may either be blocked, be fluidly connected, or have their fluid flow rerouted internally without rearranging the alignment between the lines within the flowline bundle. | ||||||
| 200 | Subsea pipeline connection | US516086 | 1983-07-22 | US4541753A | 1985-09-17 | Carl G. Langner |
| A method and apparatus are provided for connecting an offshore pipeline or flowline bundle to a deepwater subsea structure and then laying away from said structure. The pipeline or flowline bundle is deployed vertically from a pipelay vessel to make a hinged connection with the subsea structure. The connection operation is facilitated by a flowline connection tool attached to the pipeline or flowline bundle and designed to be inserted into a funnel located either centrally or to one side of the subsea structure. The connection procedure consists of landing and securing the flowline connection tool onto the subsea structure, then hinging over and connecting the pipeline or flowline bundle to the subsea structure as the pipeline or flowline bundle is laid on the seafloor beginning at the subsea structure. | ||||||
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