Class 277/333 - And inflating medium control

Subclass of Class 277 - Seal for a joint or juncture
Definition: Inflatable packer and a device or mechanism to regulate
No. of patents: 38
Last issue date: 02/05/2008

Number	Title	Issue Date
7325621	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...	02/05/2008
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
7172028	Reciprocating slickline pump A reciprocating hydraulic slickline pump for use in a wellbore. The pump comprises a pump member. The pump member is reciprocated axially by slickline in order to form an upstroke and downstroke. The pump is configured such that it pressurizes fluid within a workstr...	02/06/2007
7172029	Bi-directionally boosting and internal pressure trapping packing element system The present invention is a packer for sealing an annular region in a wellbore. The packer includes a packing element which is held through bidirectional forces. The packer first comprises an inner mandrel. Disposed around the inner mandrel are three tubulars: (1) a ...	02/06/2007
7147052	Hyraulically releasable inflation tool for permanent bridge plug Various embodiments of an improved downhole disconnect tool are provided, some of which may include a first housing releasably connected to a second housing, a first piston releasably connected to the first housing, and a second piston releasably connected to the se...	12/12/2006
7077195	Borehole closure A borehole closure includes a supply line made of plastic and having formed therein a longitudinal passage between a feed end for inlet of an impregnating fluid and a discharge end. The supply line is formed with transverse passages, each covered by a sealing ring. ...	07/18/2006
7073535	Inflatable pipe plug An inflatable pipe plug having an improved mold-formed gripping surface and a method of fabricating the pipe plug. The pipe plug has a cylindrical elastic body with ends that are connected to rigid end caps by a swaging ring, the outer surface of the expandable elas...	07/11/2006
7040394	Active/passive seal rotating control head The present invention generally relates to an apparatus and method for sealing a tubular string. In one aspect, a drilling system is provided. The drilling system includes a rotating control head for sealing the tubular string while permitting axial movement of the ...	05/09/2006
7011153	Hydraulically released inflation tool for permanent bridge plug Various embodiments of an improved downhole disconnect tool are provided, some of which may include a first housing releasably connected to a second housing, a first piston releasably connected to the first housing, and a second piston releasably connected to the se...	03/14/2006
6902008	Bi-directionally boosting and internal pressure trapping packing element system Present invention is a packer for sealing an annular region in a wellbore. The packer includes a packing element which is held through bi-directional forces. The packer first comprises an inner mandrel. Disposed around the inner mandrel are three tubulars: (1) a top...	06/07/2005
6854522	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...	02/15/2005
6834727	Emergency deflate mechanism and method for inflatable packer assemblies Devices and methods are provided that permit a packer element to be deflated in the event of an emergency wherein power to the inflating pump is lost. An inflatable packer assembly having packer elements are selectively inflated by fluid pumped from the wellbore thr...	12/28/2004
6192982	System for individual inflation and deflation of borehole packers A system for individually controlling the inflation and deflation of individual packers mounted on a casing is disclosed. The system includes a packer valve (36) mounted on the casing (24). The valve is in fluid communication with one of the packers (28)....	02/27/2001
5366020	Reinflatable external casting packer and method of casing The present invention is directed to a reinflatable external casing packer which is operable in three modes, including: a filling mode of operation, a locking mode of operation, and a reinflation mode of operation. A valve system is provided which allows ...	11/22/1994
5291947	Tubing conveyed wellbore straddle packer system A tubing conveyed straddle packer system includes two inflatable packers interconnected with each other and spaced apart to provide for isolating a wellbore space for communicating pressure fluids between a formation zone of interest and the surface throu...	03/08/1994
5201369	Reinflatable external casing packer The present invention is directed to a reinflatable external casing packer which is operable in three modes, including a filling mode of operation, a locking mode of operation, and a reinflation mode of operation. A valve system is provided which allows f...	04/13/1993
5143015	Coiled tubing set inflatable packer, bridge plug and releasing tool therefor A coiled tubing set inflatable packer, bridge plug and releasing tool therefor. The packer and bridge plug comprise an adapter with a mandrel slidably disposed therein. A pressure actuated piston releases a locking ball between the mandrel and adapter dur...	09/01/1992
5109926	Wellbore packer with shearable anti-rotation locking member An inflatable packing tool is provided for use in a subterranean wellbore. The inflatable packing tool is coupled to a wellbore conduit with a central bore which directs pressurized fluid into the wellbore. The inflatable packing tool includes a central t...	05/05/1992
4846278	Borehole plug and method An inflatable borehole plug is disclosed, the inflation of which is achieved by chemical reaction of two co-reagents disposed therein which results in evolution of a gas. The borehole plug can be dropped or lowered down a borehole to a preselected positio...	07/11/1989
4787446	Inflatable packer and fluid flow control apparatus for wellbore operations Apparatus for interconnecting a tubing string with downhole tool and for controlling the flow of fluid into a wellbore through the tubing string comprising an elongated body member and a resiliently deformable sleeve disposed around the body member and ra...	11/29/1988
4781249	Progressively inflated packers An inflatable packer construction where the inflatable elastomer element is; (1) constructed from the same type of rubber compound from end-to-end and the rubber is cured differentially from end-to-end so that inflation is from one end to the other end; (...	11/01/1988
4772158	Method and apparatus for setting inflatable packers in deep water A system is disclosed for setting inflatable packers underwater. The packers are used to seal the annulus between an anchor pile driven into the sea bed through a leg of the platform or through a skirt sleeve attached to a leg adjacent the sea bed to allo...	09/20/1988
4711301	Valve assembly for inflatable packer A multi-function valve assembly for controlling fluid flow through a single cavity, the valve assembly being particularly suited for use with an inflatable packer in a well bore. The valve assembly includes a control valve sliding piston in one end of a c...	12/08/1987
4527625	Packer valve arrangement A valve system for use in inflating packers mounted on mandrels is disclosed. The valve system uses one valve to permit, through the use of seals, the flow of fluid from the interior of a tubular mandrel to the interior of the inflatable packer when press...	07/09/1985
4492383	Inflatable well bore packer with pressure equalized rib cavity An inflatable packer which includes a tubular mandrel with an inflatable sleeve position about and connected to the mandrel by a pair of axially spaced apart collars. The ends of the sleeve are reinforced by reinforcing sheaths which include a plurality o...	01/08/1985
4474380	Inflatable packer assembly with control valve An inflatable packer assembly includes a cylindrical mandrel with a cylindrical valve body concentrically disposed about the mandrel. The valve body includes an inlet communicating with an interior of the mandrel and an outlet for directing fluid to an in...	10/02/1984
4449584	Inflatable flowing hole plug An inflatable flowing hole plug system including two fluid inflatable hole plugs, having an upper and a lower plug, a connector pipe for connecting these plugs and allowing fluid communication between them, a valve system for controlling the inflation of ...	05/22/1984
4420159	Packer valve arrangement A valve system for use in inflating packers mounted on mandrels is disclosed. The valve system uses one or more valves to permit, through the use of seals, the flow of fluid form the interior of a tubular mandrel to the interior of the inflatable packer w...	12/13/1983
4402517	Well packer valve arrangement A valve system for use in inflating packers mounted on mandrels. The valve system uses one or more valves to permit, through the use of seals, the flow of fluid from the interior of a tubular mandrel to the interior of the inflatable packer when pressure ...	09/06/1983
4299397	Inflatable packer assembly with control valve An inflatable packer assembly includes a cylindrical mandrel with a cylindrical valve body concentrically disposed about the mandrel. The valve body includes an inlet communicating with an interior of the mandrel and an outlet for directing fluid to an in...	11/10/1981
4268043	Sealing member for use in well shafts A sealing member for use in well shafts. The sealing member comprises a hose which is mounted over a tube sleeve and is sealed at its ends relative thereto. At least one pipe carrying pressurized water passes through the sleeve. The pressurized water pipe...	05/19/1981
4260164	Inflatable packer assembly with control valve An inflatable packer assembly includes a cylindrical mandrel with a cylindrical valve body concentrically disposed about the mandrel. The valve body includes an inlet communicating with an interior of the mandrel and an outlet for directing fluid to an in...	04/07/1981
4244590	Inflatable packer construction An inflatable packer which can be easily constructed using tubular members such as a section of well casing, the packer having spaced, first and second annular heads which surround a central tubular member, the first head being slidable along the tubular ...	01/13/1981
4206929	Blow out preventer In oil and gas well pumping apparatus, a polish rod reciprocates through a stuffing box and connects to a submersible pump through a tubing string or the like. When servicing, it is desirable to close off the gas or oil pressure from below and hydraulic f...	06/10/1980
4191383	Inflatable packer and method of constructing same The inflatable packer element of the present invention includes an inflatable bladder means having a braided wire reinforcing element. An end of the reinforcing element is received between a tapered surface of an annular anchor means and a tapered surface...	03/04/1980
4163562	Inflatable packer The invention comprises an inflatable packer comprising a tubular mandrel having a port extending radially therethrough. An elastomeric valve element is resiliently urged against the exterior of the mandrel to cover the port. A generally tubular packer bo...	08/07/1979
4082298	Inflatable packer and valve mechanism therefor An inflatable packer including a tubular mandrel having generally radial ports therethrough and a sub slidably telescopically mounted on the mandrel. A first annular space, in communication with the ports, is formed between the mandrel and the sub. An inf...	04/04/1978
3941190	Well control apparatus A tool for running on a well string such as a drill string in a well bore carries inflatable packer means to close off the well bore adjacent the tool. The tool includes a body having a longitudinal bore therethrough with seating means and shock absorbing...	03/02/1976

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Class 277/333 - And inflating medium control