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Class 285/123.2 - Having plural parallel suspended inner tubes


Subclass of Class 285 - Pipe joints or couplings
Definition: Subject matter comprising a plurality of collateral tubes
No. of patents: 55
Last issue date: 04/15/2008


1    
NumberTitleIssue Date
7357185Subsea tubing hanger assembly for an oil or gas well
A subsea tubing hanger assembly is disclosed which comprises a tubing hanger (12) having a plurality of conduits (14). A pup joint (16) is connected to the hanger (12) and a shroud (20) surrounds the pup joint (16). A plural...
04/15/2008
7341255Sealing fitting with expanding material
An expanding compound is used to seal conduit fittings. The compound is injected into the fitting, and expands to separate conductors within the fitting. In one embodiment, the compound expands to four times its size, and hardens within approximately one hour. In a ...
03/11/2008
7341283High temperature flexible pipe joint
For continuous high temperature operation over a service life in excess of twenty years, a flexible pipe joint includes various features that tend to reduce the temperature of the load-bearing flex element or reduce strain in the warmer elastomeric layers of the fle...
03/11/2008
7308943Well operations system
A wellhead has, instead of a conventional Christmas tree, a spool tree in which a tubing hanger is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the producti...
12/18/2007
7195037Modular surface mount manifold
A modular manifold system is provided for interconnecting fluid components of a fluid system in a reduced area The system is comprised of a one or more bridge fittings having an internal fluid passageway which has an inlet end in fluid communication with an outlet p...
03/27/2007
7121345Subsea tubing hanger lockdown device
A lockdown device for securing a tubing hanger to a production member comprises a lockdown member which is mounted on the production member and is movable into and out of engagement with a corresponding locking profile on the tubing hanger, and an actuating mechanis...
10/17/2006
6979776Pipe bundle for underground installation
A pipe conduit bundle for installation into a wellbore using horizontal drilling techniques is disclosed. The pipe conduit does not require an outer casing for construction. The pipe bundle configuration is formed by pipes of varying sizes in a particular configurat...
12/27/2005
6866299Slurpie hose connection
A slurpie hose connection, for attachment between the coaxial hose and the back end of a fuel dispensing nozzle, including two parts, a connector part that fits within the back end of the nozzle, a hose part that secures with the leading edge of the hose, such that ...
03/15/2005
5890747Double containment butt weld pipe fitting
A double containment pipe fitting (10) has inner and outer pipes (12, 14). The inner pipe has a polygonal cross section to present a number of edges (12j) which extend parallel with the longitudinal axis (15) of the pipe and engage the inner surface (14c)...
04/06/1999
5377763Riser pipe assembly for marine applications
A riser pipe assembly is provided for interconnecting a subsea wellhead on an ocean floor with an above-surface platform. The assembly includes at least one cable extending generally between the wellhead and the platform to provide vertical support for th...
01/03/1995
5137306Multiple-duct conduit system with expansion chamber coupling
A multiple duct conduit system (10) includes conduit sections with elongated outer ducts (18) and inner ducts (19) are disposed therewithin and the conduit sections are connected in end-to-end relationship for carrying fiber optic cables and the like. The...
08/11/1992
5135265Multiple passage conduit assembly
A flexible, multiple passage conduit assembly for use in fiber optic systems comprises an outer elongated housing formed from circumferentially corrugated flexible plastic conduit of cylindrical configuration. A separate rigid end fitting member of genera...
08/04/1992
5114158Packing assembly for oilfield equipment and method
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 ...
05/19/1992
4911244Marine casing suspension apparatus
An improved wellhead casing hanger for suspension of successive casing strings with particularly small annular spacings having an adapter sleeve of double wall construction which is utilized with a load bearing shoulder on the inside of the inner member f...
03/27/1990
4836288Casing hanger and packoff running tool
A well tool for running, landing and setting a casing hanger and a packoff in a wellhead housing, and pressure-testing the integrity of the packoff seal, all in a single trip into the well....
06/06/1989
4807705Casing hanger with landing shoulder seal insert
A subsea wellhead housing for an underwater well has a small, integral landing shoulder in the bore for supporting an intermediate casing string. The small landing shoulder permits passage of a standard 171/2 inch drill bit. Breech block teeth are provide...
02/28/1989
4773477Well suspension assembly
An assembly for connecting an inner and an outer tubular member to and from each other in a well. A resiliently expandable and contractible locking support element is carried by and is axially slidable on the inner member. Two or more radially outwardly e...
09/27/1988
4759571Fluid transfer module with multiple flow paths
A fluid transfer module is provided with multiple flow paths for transferring multiple fluids. The module is particularly useful in downhole pumps for passing oil upwardly through a central passage and for passing gas up or down through concentric passage...
07/26/1988
4757860Wellhead equipment
There are disclosed several forms of subsea wellhead equipment of the type in which casing hangers connected to the upper ends of successively smaller diameter casing strings are adapted to be lowered into and landed within the bore of a casing head, whic...
07/19/1988
4736799Subsea tubing hanger
A packoff assembly for sealing the annulus between the outside surface of a tubing hanger and the internal bore of a subsea wellhead includes a packoff sleeve insertable in the annulus and a seal assembly on its lower end. A release sleeve is disposed aro...
04/12/1988
4696496System for putting two contiguous enclosures into individual communication with the outside
A system for putting two contiguous enclosures (2,3) disposed on one side of a common wall (4) into individual communication with the outside. According to the invention, a coaxial coupling part (1) is provided enabling two connections to be made. The cou...
09/29/1987
4691780Subsea wellhead structure
A subsea wellhead structure including a casing hanger having an exterior downwardly facing shoulder for landing within a well bore, a central bore, means for connecting a casing thereto, an upper exterior surface tapering downwardly and outwardly, and an ...
09/08/1987
4653778Lockdown connector for mudline wellhead tieback adaptor
Disclosed is a method and apparatus comprising a lockdown connector 20 which connects a subsea wellhead 74 to an outer conductor pipe 10 of the mudline suspension system 12 to convert a mudline suspension system to a subsea well system while providing adj...
03/31/1987
4653589Mudline casing hanger tieback adaptor with adjustable load ring
A method and apparatus comprising a mudline casing hanger tieback adaptor with an adjustable load ring for connecting an installed subsea wellhead on the mudline suspension system. The mudline casing hanger tieback adaptor (180) includes a mudline hanger ...
03/31/1987
4651831Subsea tubing hanger with multiple vertical bores and concentric seals
A tubing hanger for landing is a subsea wellhead system below a multiple bore valve package in a preferred but not essential orientation with a first concentric and a second eccentric bore both suitable for vertical access for passage of tools and the suc...
03/24/1987
4615544Subsea wellhead system
The subsea wellhead system includes a wellhead, a housing seat disposed in and connected to the wellhead, a casing hanger supported by the seat, a holddown and sealing assembly in the annulus between wellhead and hanger, a running tool attached to the han...
10/07/1986
4600054Tubing hanger assembly
A segmented tube hanger utilized in supporting tubing strings having the feature of allowing the sealed passage of electrical cable thru it therefore eliminating the splicing of electrical cable and the use of multi-pronged electrical connectors by using ...
07/15/1986
4561499Tubing suspension system
A tubing suspension system for undersea well production operations employs a nonoriented tubing hanger having an inner body for supporting a tubing string and a landing collar for supporting the tubing hanger on a wellhead casing. The tubing hanger includ...
12/31/1985
4550782Method and apparatus for independent support of well pipe hangers
In well installations subjected to high internal fluid pressures, hangers for long casing strings are supported independently in the upright bore of a wellhead body or other support member without requiring that the hangers be stacked one atop another or ...
11/05/1985
4422507Wellhead apparatus
There is disclosed apparatus for use in suspending concentric strings of casing of an offshore well at the ocean floor, wherein at least one hanger for suspending an intermediate casing string is provided with a plurality of vertically spaced, upwardly fa...
12/27/1983
4408783Holddown apparatus
A holddown assembly is mounted on a hanger suspending a string of casing or tubing into a well. A shoulder on the hanger engages a seat in the bore of the wellhead and has passages therethrough for connecting the annular spaces above and below the seat. T...
10/11/1983
4408784Production casing tieback connector assembly
A connector assembly for connecting a production casing (38) to a subsea wellhead (10) from a tensioned leg platform. A funnel (46) external to the wellhead, guides and aligns the conductor during installation and places a limit on the angular deflection ...
10/11/1983
4402773Remote automatic make-up stab-in sealing system
A remote, automatic make-up, stab-in sealing system for providing metal-to-metal seals between a projecting structure and a surrounding bore telescopically receiving the projecting structure is disclosed. The sealing system includes the projecting structu...
09/06/1983
4374595Metal to metal sealed joint for tubing string
A subsea well apparatus having an improved means of axially connecting the plurality of tubing string sections disposed about each riser conduit section. The subsea well apparatus has a riser conduit section with a mating flange at each end, tubing string...
02/22/1983
4353420Wellhead apparatus and method of running same
A well apparatus and method of running same, which apparatus includes a hanger body with a downwardly facing external shoulder adapted to land on a wellhead housing landing seat and having an external flow passage therearound for flow of fluids past the l...
10/12/1982
4346919Remote automatic make-up stab-in sealing system
A remote, automatic make-up, stab-in sealing system for providing metal-to-metal seals between a projecting structure and a surrounding bore telescopically receiving the projecting structure is disclosed. The sealing system includes the projecting structu...
08/31/1982
4340117Underwater well installations and handling string joint therefor
Underwater well apparatus in which the handling string for manipulating a handling tool to, e.g., orient and land a multiple string tubing hanger includes a power portion in the form of a single metal piece having a plain cylindrical outer surface to be p...
07/20/1982
4333531Method and apparatus for multiple well completion
Method and apparatus for multiple well completion, in which a multiple string tubing hanger or like component is equipped with a gapped flange to accept dependent splines on the handling tool and on the production upper body to establish precise orientati...
06/08/1982
4319773Fastener and devices in which load supporting members are secured thereby
In devices, such as well tools, components which must support heavy loads are connected by a simple fastening device capable of transferring the heavy load from one component to the other, with the load being accepted by the fastening means in compression...
03/16/1982
4317587Split fastening ring and assemblies employing same
In devices, such as well tools, where two telescopically related members are telescopically related, the two members are connected together by a split ring in such fashion that loads are transferred from one member to the other via the split ring with the...
03/02/1982
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