Class 166/116 - Surrounding conduit carries packer or plug

Subclass of Class 166 - Wells
Definition: Devices in which the surrounding conduit carries a packer
No. of patents: 40
Last issue date: 01/29/2008

Number	Title	Issue Date
7322410	Controllable production well packer An apparatus and method for operating an electrically powered device in a packer using the piping structure of the well as an electrical conductor for providing power and/or communications. The electrically powered device may comprise an electrically controllable va...	01/29/2008
7293437	Gasket and washing machine using the same A drum washing machine having a gasket to prevent leakage of water in the tub and the laundry from being stuck in a laundry opening part. The washing machine including a cabinet having a first opening through which a laundry is put in the cabinet, a tub installed in...	11/13/2007
7278493	Auto entry guide Systems and methods for guiding a seal assembly associated with a string of production tubing, or a tubular member generally, into a receptacle within a wellbore. The muleshoe of a seal assembly is provided with an auto entry guide device in the form of a guide memb...	10/09/2007
7264047	Annular isolators for expandable tubulars in wellbores The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the...	09/04/2007
7258323	Variable radial flow rate control system A variable radial flow rate control valve including a body forming a bore along the longitudinal axis thereof for transporting a fluid through the body, a fixed choke member fixedly positioned about the bore, the fixed choke member forming a fixed aperture, a rotati...	08/21/2007
7243743	Drilling assembly and method for drilling a barehole into geological formations A drilling assembly for drilling a borehole into geological formations. The assembly comprises a drilling shaft and a pump device, both placable in the borehole. The drilling shaft comprises a drilling head, and the pump device comprises a sealing device for sealing...	07/17/2007
7240738	Self-orienting selectable locating collet and method for location within a wellbore A self orienting selectable locating collet including a collet having at least one deflectable finger; an orientation key positioned at the deflectable finger and being deflectable with the finger; and a collet profile disposed at an outside dimension of the collet....	07/10/2007
7178603	Method and apparatus for ECP element inflation utilizing solid laden fluid mixture An inflatable element utilizing a solid or particulate laden fluid as an expansion media. A fluid component of the solid or particulate laden fluid is exhausted from a defined area of the element to leave substantially only particulate matter therein to maintain the...	02/20/2007
7170424	Oil well casting electrical power pick-off points A power supply apparatus is provided for supplying power and communications within a first piping structure. An external power transfer device is positioned around the first piping structure and is magnetically coupled to an internal power transfer device. The inter...	01/30/2007
7114561	Wireless communication using well casing A petroleum well having a borehole extending into a formation is provided. A piping structure is positioned within the borehole, and an induction choke is positioned around the piping structure downhole. A communication system is provided along the piping structure ...	10/03/2006
7090039	Assembly for drilling low pressure formation The invention relates to a drilling assembly for drilling a borehole into geological formations which assembly comprises: a drilling shaft placable in the borehole, which shaft has a drilling head; and a pump devic...	08/15/2006
7075454	Power generation using batteries with reconfigurable discharge A petroleum well for producing petroleum products that incorporates a system adapted to provide power to a downhole device in the well. The system includes a current impedance device and a downhole power storage device. The current impedance device is positioned suc...	07/11/2006
7063164	System and method to seal by bringing the wall of a wellbore into sealing contact with a tubing The invention is a system and method used to seal between an open wellbore and a tubing by bringing the wellbore wall inwardly so as to enable sections of earth from the wellbore wall to create the required seal against the tubing. The earth sections that make up th...	06/20/2006
7011157	Method and apparatus for cleaning a fractured interval between two packers A method and apparatus for fluid treatment of a selected interval of a well and then cleaning the selected interval and the apparatus of treatment residue. An straddle tool is run into the well to treatment depth on fluid supplying tubing and has upper and lower pac...	03/14/2006
7004248	High expansion non-elastomeric straddle tool The present invention involves a pack-off system for use in packing off an area of interest within a wellbore. The pack-off system comprises at least two packing elements disposed on a tubular body. The packing elements of the present invention comprise overlapping ...	02/28/2006
6966380	Valves for use in wells A valve assembly to control the intake of fluid. The valve assembly has a valve body and a valve choke disposed therein. The valve choke has a choke bore through the interior of the valve choke. The valve choke has a plurality of orifices to the choke bore spaced at...	11/22/2005
6966373	Inflatable sealing assembly and method for sealing off an inside of a flow carrier An inflatable sealing assembly integrated with a flow carrier which seals the inside of the flow carrier upon detection of a physical condition (e.g. fluid pressure). The inflatable sealing assembly includes a housing, a compartment in the interior of the housing fo...	11/22/2005
6957698	Downhole activatable annular seal assembly Devices and methods are described for establishing an effective annular seal about between an active pressure differential device and a surrounding wellbore sidewall. In other aspects, the invention provides a means of selectively activating such a seal during drill...	10/25/2005
6951331	Sleeve valve for controlling fluid flow between a hydrocarbon reservoir and tubing in a well and method for the assembly of a sleeve valve A sleeve valve for fluid flow between a hydrocarbon reservoir and a well includes a first sleeve and a second sleeve which are relatively movable between a first position in which at least one opening in the first sleeve is aligned or misaligned with at least one op...	10/04/2005
6668932	Apparatus and methods for isolating a wellbore junction A wellbore junction isolation method and associated apparatus provide convenient isolation of a wellbore junction while permitting certain operations to be performed in a main or branch wellbore below the junction. In described embodiments, formations int...	12/30/2003
6631763	Method and system for testing a borehole by the use of a movable plug A method and a system for testing a borehole in an underground formation by the use of so-called closed chamber testing. When carrying out the method, a test or production pipe (5) is carried down the borehole, where the test pipe can be closed at its upp...	10/14/2003
6561269	Canister, sealing method and composition for sealing a borehole Canister, sealing method and composition for sealing a borehole. The canister includes a container with slurry inside the container, one or more slurry exits at one end of the container, a pump at the other end of the container, and a piston inside that p...	05/13/2003
6439312	Apparatus and methods for isolating a wellbore junction A wellbore junction isolation method and associated apparatus provide convenient isolation of a wellbore junction while permitting certain operations to be performed in a wellbore below the junction. In a described embodiment, a formation intersected by a...	08/27/2002
6095245	Well perforating and packing apparatus and method A repositionable apparatus for perforating and gravel packing an underground well uses gravity or other means to reposition the apparatus instead of a conventional wireline or work string attached to a rig. Perforating and packing can be accomplished with...	08/01/2000
5743335	Well completion system and method The method includes running a liner, production packer and polished bore receptacle (PBR) into a well on the production tubing string, cementing the liner in place by pumping cement through the production tubing string, setting the packer, and optionally ...	04/28/1998
5348092	Gravel pack assembly with tubing seal A sand control screen installation for a well includes an auger type sand control screen connected to a length of smooth-walled tubing which is disposed in a tubing seal support sub connected to a packer and having a frangible coupling interconnecting the...	09/20/1994
5163515	Pumpdown toolstring operations in horizontal or high-deviation oil or gas wells Pumpdown toolstring for performing operations requiring application of power downhole in horizontal or high-deviation oil or gas wells, comprising an elongate toolstring element (30), locomotive devices (31, 32A) on said toolstring element, with at least ...	11/17/1992
4951746	Latching seal unit A latching seal unit for use on a tubing string in a well bore for connecting the tubing string into a well packer having a receiving head provided with one or more latching lugs, the seal unit including a top sub connectable on a tubing string, a tubular...	08/28/1990
4921044	Well injection systems Disclosed are selective and no-go systems for injecting fluids in a well and a system for orienting a tool in a landing nipple in a well conduit, which is utilized in the selective set injection system. Each injection system is comprised of a land nipple,...	05/01/1990
4907651	Metal-to-metal packer seal for downhole disconnectable pipe joint A metal-to-metal packer seal for downhole use in a well that operates in a deleteriously corrosive atmosphere. The seal is formed by the cooperating ends of two pipe sections, one of which is vertically positioned in a well with an upwardly facing metalli...	03/13/1990
4869323	Cementing and rotating an upper well casing attached by swivel to a lower casing A method for completing a well to provide an uncemented lower casing and an upper cemented casing. The lower casing and upper casing are connected at a swivel joint so that only the upper casing is rotated while cementing. Inflatable packers and a plug ar...	09/26/1989
4782896	Retrievable fluid flow control nozzle system for wells A system for controlling the flow of injection fluids and production fluids between a wellbore and one or more zones in a subterranean formation including an elongated tubing string extending within the wellbore and having one or more tubular ported mandr...	11/08/1988
4641707	Well apparatus Well apparatus is disclosed in which the bore through a lower tubular body adapted to be packed off and anchored within a well bore is opened and closed by a flapper pivotally mounted on the lower body and spring pressed toward closed position, and a flow...	02/10/1987
4628996	Full opening check valve In accordance with the invention, a full opening check valve is provided which will close in response sustained high velocity flow through the valve. In one embodiment, a downhole blowout preventer is provided having a rigid outer sleeve which may be inte...	12/16/1986
4612985	Seal assembly for well tools A method and apparatus for inserting a seal stack in a seal bore defined by a well tool located downhole where ambient conditions would cause radial swelling of the seal stack. The seal stack is mounted at the surface in a confined space defined between a...	09/23/1986
4583592	Well test apparatus and methods A well test tool for closing a well at a downhole location below the well packer and near the formation to be tested, the apparatus being openable and closable from the surface by tensioning and relaxing the cable or wire line on which it is lowered into ...	04/22/1986
4424858	Apparatus for recovering gaseous hydrocarbons from hydrocarbon-containing solid hydrates A method and apparatus are provided for producing gaseous hydrocarbons from formations comprising solid hydrocarbon hydrates located under either a body of land or a body of water. The vast natural resources of such hydrocarbon hydrates can thus now be ec...	01/10/1984
4063427	Seal arrangement and flow control means therefor An inflatable reinforced sealing element for positioning on a jacket to seal off the space between the jacket and a piling in the jacket, with the jacket and piling being associated with the supporting leg of an offshore structure. Control means are provi...	12/20/1977
3952799	Apparatus for borehole drilling Apparatus is disclosed for borehole drilling which provides a pressure-tight seal between the drill pipe and the borehole or casing. The apparatus uses resilient elements between the borehole and the body portion of the drilling head. The resilient elemen...	04/27/1976
3934648	Well tubing system with orienting coupling means A well tubing system for releasably coupling lower tubing strings with upper tubing strings in a well bore without rotation from the surface including a well packer on a plurality of lower tubing strings, a first flow coupling and guide sleeve on the uppe...	01/27/1976

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Class 166/116 - Surrounding conduit carries packer or plug