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7077214 |
Expansion set packer with bias assist
A packer element has a biasing member incorporated with it. The element is either fabricated with the biasing element in a relaxed condition and then the element is stretched prior to insertion...
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7077211 |
Method of creating a casing in a borehole
A method of creating a casing in a borehole located in a subterranean formation including: supporting a tubular liner and an expansion device in the borehole using a support member; injecting...
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7070001 |
Expandable sealing apparatus
The present invention generally relates to an apparatus for sealing a wellbore. The sealing apparatus includes an expandable tubular body having one or more sealing elements disposed thereon. In...
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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...
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7059410 |
Method and system for reducing longitudinal fluid flow around a permeable well
A method for reducing longitudinal flow of fluids through an annular space surrounding a permeable well tubular, such as a slotted liner or a sandscreen, in an inflow region of an oil and/or gas...
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7059418 |
Pressurized seal arrangement
A pressurized sealing arrangement suited for providing a seal between a valve stem and a valve body is provided. The sealing arrangement includes a piston that is restrained in and statically...
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7055595 |
Electrical submersible pump actuated packer
A centrifugal pump assembly for a well is lowered into the well on a string of tubing. A packer mounts to the pump assembly below an intake of the pump and is lowered in with the pump assembly. The...
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7051805 |
Expandable packer with anchoring feature
An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel and mating undulating surfaces to help maintain grip under changing...
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7051812 |
Fracturing tool having tubing isolation system and method
A formation treatment tool assembly is conveyed within a well casing by a tubing string and has a housing defining treatment fluid supply and discharge passages and a fluid injection port through...
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7048066 |
Downhole sealing tools and method of use
A downhole tool apparatus for insertion into and sealing engagement with a wellbore. The downhole tool includes upper and lower casing engaging members and an intervening sealing member. In one...
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7044231 |
Expandable packer with anchoring feature
An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the...
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7036581 |
Wellbore seal device
A device for providing a seal between two tubular member in a downhole environment is presented. The sealing device provides the capability of “boosting” or improving the seal, in the event of...
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7021390 |
Tubular liner for wellbore casing
A method for expanding tubulars including providing an expandable tubing and a larger diameter tubing, wherein the larger diameter tubing has an expandable, tapering end portion; coupling an end...
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7017670 |
Apparatus and method for expanding and fixing a tubular member within another tubular member, a liner or a borehole
An apparatus for securing a tubular member within a liner or borehole has a seal means connected within the tubular member, and a pressure control device operable to increase the pressure within...
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7017672 |
Self-set bridge plug
A well tool ( 12 ) includes a mandrel ( 86 ), a collar ( 64 ), a sleeve ( 76 ) and a piston body ( 88 ). The collar ( 64 ) is disposed above and the sleeve ( 76 ) is disposed beneath a seal element...
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7004260 |
Method of sealing an annulus
A method is provided for activating a downhole system arranged in an annular space formed between a radially expandable tubular element extending into a borehole formed into an earth formation and...
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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...
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7000704 |
Latch profile installation in existing casing
A method of installing an internal latch profile in an existing tubular string does not require the use of a packer. In a described embodiment, a method of latch installation includes the step of...
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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...
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6966386 |
Downhole sealing tools and method of use
A downhole tool apparatus for insertion into and sealing engagement with a wellbore. The apparatus comprises a tube having an expandable diameter, and a gripping member joined to the tube adapted...
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6942039 |
Flapper valve and associated method for single trip retrieval of packer tools
A method of providing for a single trip removal of packer tools by providing a flapper valve in the upper packer tools which opens when pressure below the tool exceeds the pressure above the tool...
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6938698 |
Shear activated inflation fluid system for inflatable packers
A subterranean well packer is inflated by a pumped transfer of rheotropic fluid through a tortuous flow channel into a packer sealing element expansion chamber. The tortuous flow channel and fluid...
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6935432 |
Method and apparatus for forming an annular barrier in a wellbore
In accordance with the present invention, an apparatus and method are provided which utilize an expandable media assembly to create an annular barrier in a subterranean well. The apparatus...
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6926089 |
Downhole actuation system utilizing electroactive fluids
Downhole wellbore tools are actuated by electrically controllable fluids energized by a magnetic field, for example. When energized, the viscosity state of the fluid may be increased by a degree...
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6926088 |
Sequential release packer J tools for single trip insertion and extraction
The present invention is to a pre-selected set of packer tools having J tools and on/off tools (“stingers” and “washovers”) with varying strokes and varying set and release directions to...
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6924745 |
System and method for monitoring packer slippage
A system and method for monitoring a device in a well, according to which a sensor associated with the device monitors any movement of the device in the well and outputs a corresponding signal. The...
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6918441 |
Cup tool for high pressure mandrel
A cup tool for use with a mandrel of a wellhead isolation tool has a substantially right-angled stepped shoulder over which an elastomeric sealing element is forced by elevated fluid pressures. A...
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6915856 |
Apparatus and methods for preventing axial movement of downhole tool assemblies
A slip assembly apparatus is adapted (i) to be deployed into a wellbore (ii) to prevent axial movement of a downhole tool assembly in the wellbore when the slip assembly apparatus is actuated and...
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6915858 |
Element latch system and method of use
A latching assembly for a lower collar on an inflatable is provided. After deflation, the lower collar is engaged to the mandrel so that the deflated inflatable can be advanced with other connected...
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6899183 |
Casing attachment method and apparatus
A method and apparatus to affix a tool downhole in a cased wellbore, one embodiment comprising a tubular body with a slot along its length. A portion of the slot is V-shaped to accommodate a wedge...
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6896064 |
Compression set packer and method of use
A downhole packer for providing a seal in a well bore to allow integrity testing of the well bore. The packer is set by a sleeve movable on a body of the packer being set down on a formation in the...
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6896061 |
Multiple zones frac tool
A device and a method are provided for the hydraulic fracturing of multiple zones in a well bore. A stinger carries a plurality of packers into a well bore. Each packer is separably connected to...
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6892820 |
Modular retrievable packer
A packer that is usable with a subterranean well includes an assembly to circumscribe one out of multiple tubular arrays that are inserted through the packer. The packer also includes a member that...
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6883610 |
Straddle packer systems
The present invention relates to straddle packer systems and methods of using them for downhole isolation of zones for fracturing treatment. More specifically, the system includes upper and lower...
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6865933 |
Multi-level monitoring well
An apparatus and methods are provided for monitoring a well and for obtaining fluid samples from below the ground. The apparatus includes a single-piece, extruded plastic well stock that extends...
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6860329 |
Apparatus for and method of including a packer to facilitate anchoring a first conduit to a second conduit
Apparatus and methods are disclosed for anchoring a first conduit to a second conduit. The first conduit is typically an expandable conduit whereby at portion of the first conduit is expanded by...
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6854521 |
System and method for creating a fluid seal between production tubing and well casing
A well completion system for creating a seal between a production tubing ( 30 ) and a well casing ( 34 ) positioned within a wellbore ( 32 ) comprises a production packer ( 46 ) that includes a...
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6843315 |
Compression set, large expansion packing element for downhole plugs or packers
A packing element, which is a composite structure, contains the sealing portion to minimize extrusion. The element is retained in tension when running in to minimize damage. In the preferred...
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6843316 |
Method for improving well quality
A method of improving the quality of liquid coming from a well that has a pump and pipe assembly. The method includes identifying a region of the well that is low in contamination and a region of...
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6840328 |
Anti-extrusion apparatus and method
An apparatus, system, and method useful for discouraging the extrusion of at least one deformable member of a device into a space adjacent to the deformable member when the device is disposed...
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6840327 |
Annular pressure spool
A well bore pressure containment device is provided. Operating as a single stripping and containment device compatible with a wide range of tool string and tubing sizes, the containment device may...
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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...
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6832649 |
Apparatus and methods for utilizing expandable sand screen in wellbores
In one aspect of the invention apparatus and methods are provided for completing a wellbore using expandable sand screen. An apparatus including a section of expandable sand screen, and an...
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6827150 |
High expansion packer
The present invention generally relates to a method and apparatus for sealing a tubular. In one aspect, the apparatus is sealing apparatus for a downhole tool such as a bridge plug, packer, or...
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6823944 |
Apparatus and method for completing a well
A method and apparatus for sealing the top of a liner within a casing string of an oil well which does not require a second trip of the work string to seal off the top of the liner within the...
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6823945 |
Pressure compensating apparatus and method for downhole tools
An apparatus and method for opposing pressure-induced forces acting on a mandrel of a downhole tool. The apparatus and method are particularly suited for use with a packer and include a piston...
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6820690 |
Technique utilizing an insertion guide within a wellbore
A technique for facilitating the use of a variety of completion elements in a wellbore environment. The technique utilizes an insertion guide disposed within an open-hole section of a wellbore. The...
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6808024 |
Downhole seal assembly and method for use of same
A seal assembly ( 60 ) for controlling the flow of fluids in an annulus ( 68 ) between a continuous tubular ( 62 ) and a cased wellbore ( 64 ) is disclosed. The seal assembly ( 60 ) includes anchor...
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6799635 |
Method of cementing a tubular string in a wellbore
Methods of expanding well tools, which permit operation of the well tools after expansion, are provided. In a described example, a cementing tool includes a valve and a packer. After the cementing...
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6796381 |
Apparatus for extraction of oil via underground drilling and production location
A well pressure control assembly includes an annular pressure containment structure useful for manipulating pipe during drilling and other well operations performed with annular pressure at the...
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