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WO/2008/118725A2 |
The tubular cutter disclosed herein is useful for severing downhole tubulars and comprises a drive system, a pivoting system, a cutting head, and a cutting member. Cutting is accomplished by rotatingly actuating the cutting head with an ...
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WO/2008/109891A1 |
A casing patch (l0) includes a deformable seal (44) configurable to a deformed and undeformed position for sealing and unsealing respectively with a target stub (26) and a pressure based subsystem in operable communication with the defor...
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WO/2008/104179A2 |
The present invention relates to a drilling head (2) for reboring a stuck valve (35) or drilling into the formation downhole (36). The invention furthermore relates to a drilling tool (1) comprising the drilling head and a driving unit (...
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WO/2008/102119A2 |
A method of removing a downhole tool (100) from a wellbore comprising contacting the tool with a heat source (257) wherein the tool comprises at least one load-bearing component (210,240, 245) comprising a thermally degradable material. ...
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WO/2008/104005A2 |
Casing window milling assemblies (20) include a conicalIy- shaped section (43) disposed along the tubular of the assembly. This conically-shaped section is a non-cutting portion that is preferably tapered toward the mill head (22). The c...
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WO/2008/089331A1 |
A system used to remove multiple isolation plugs from a wellbore. The system is efficient in fluidizing and circulating proppant located below an upper plug resting on top of proppant settled above a lower plug. The system uses a central...
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WO/2008/085675A1 |
The disclosure, in on aspect, provides a method for performing a laser operation in a wellbore that includes displacing a wellbore fluid with a laser-compatible medium proximate a location in the wellbore where a work is desired to be pe...
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WO/2008/085062A1 |
A cutting device (2) and a method for emergency cutting of a line (12) in a well. The cutting device (2) comprises: - a tapering guide (18) including a narrow end portion (20) and a wide end portion (22) for feed-through of the line (12)...
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WO/2008/077083A1 |
A bottom hole assembly used for making a window in a tubular is modified to reduce tool joint stress in a connection above the topmost watermelon mill (24). A protrusion (22) is located between the topmost watermelon mill and the next th...
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WO/2008/064301A2 |
An apparatus and method to internally cut vertical slots inside PVC, HDPE, or plastic pipe-riser (blank casing) in existing methane gas recovery wells (extraction wells) that have been installed at Municipal Solid Waste Facilities are de...
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WO/2008/057654A2 |
A cutter module includes a piston and a shear blade. The piston includes at least two movable telescoping elements that are adapted to expand from a first retracted length to a second expanded length. The shear blade is connected to the ...
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WO/2008/033120A2 |
A method and apparatus for perforating and isolating perforations in a wellbore. A perforating and isolating apparatus includes at least one packer having a swellable seal material, and a perforating assembly attached to the packer. A me...
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WO/2008/031832A1 |
A method is provided of expanding a tubular element from a first inner diameter to a second inner diameter larger than the first inner diameter. The method comprises the steps of: a) installing a sleeve of flexible material in the tubula...
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WO/2008/011199A2 |
An anchor handling/tug/supply (AHTS ) vessel is employed to engage conductor casings with the seafloor. The conductor casings initially penetrate the seafloor to a first depth under their own weight. The conductor casings may optimally b...
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WO/2007/141535A1 |
A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is convened to magnes...
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WO/2007/140820A1 |
A method of patching a well or a pipe by hydroforming a tubular metal patch, the method comprising the following steps: - inserting inside the patch (4) a tool (1) provided with a pair of inflatable packers (3) that are axially spaced ap...
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WO/2007/140258A2 |
A carrier tube for use in a wellbore perforating gun has inner and outer layers selected from materials of different, comparative physical properties. The inner layer has a higher compressive strength, and the outer layer has a higher yi...
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WO/2007/140313A2 |
A flow sensor is incorporated into a junk basket to sense a flow stoppage due to a plugged screen or plugged cuttings ports in a mill. The sensor triggers a signal to the surface to warn personnel that a problem exists before the equipme...
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WO/2007/132232A1 |
A whipstock (1) having a longitudinal axis and comprising: a tapered face surface, at least part of which is inclined with respect to the longitudinal axis, for guiding a milling head (7) as the milling head passes from a top end to a bo...
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WO2007024263B1 |
The present invention relates to a portable, electrocrushing drilling apparatus and method.
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WO/2007/101444A2 |
The invention relates to a system for injecting a substance into a space surrounding a well bore with an assembly to be inserted into a well tubular, the assembly comprising: a cutting part capable of making a hole through well tubular; ...
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WO/2007/092004A1 |
A continuous communications conduit for use in a well is disclosed. A first (101) and second (102) conduit section are threadably engaged and a weldment is formed (200). A heat shield conduit (220) can be disposed within a bore (111, 112...
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WO/2007/090338A1 |
A hydraulic diameter variable casing expansion method comprises: using hydraulic change to realize the expansion head with variable diameter which is arranged at the deformation position or fixing position of a casing; processing the exp...
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WO/2007/063016A1 |
This method consists in introducing within the well or pipe (C) a mandrel (1) equipped with an inflatable membrane (2) which can expand radially under the effect of an internal pressure, in positioning said mandrel opposite the portion t...
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WO/2007/056615A1 |
Casing or other well tubulars that have failed are repaired in a manner that doesn't reduce the final inside diameter and doesn't further propagate the failure. The tubular needing repair is first expanded on at least one zone above and ...
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WO/2007/053582A2 |
An apparatus and method for protecting temperature sensitive components from the extreme temperatures a hydrocarbon producing wellbore. The apparatus comprises an inner housing encompassed by an exterior housing, where a plenum is formed...
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WO/2007/049026A1 |
The invention relates to a cutting device arranged to direct a jet of a cutting material on to an object to be cut, and to a corresponding method. The invention also relates to a blowout preventer (BOP) and a well shutoff device arranged...
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WO/2007/047800A2 |
A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and ma...
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WO/2007/044603A2 |
An internally rotating nozzle for facilitating drilling through a subterranean formation is rotatably mounted internally within a housing connected to a hose for receiving high pressure fluid. The rotor includes at least two tangential j...
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WO/2007/044924A2 |
An improved rig assist compensation system is provided, comprising a motion compensation unit (21) operatively connected to a semi -submersible rig platform (23) having a blow-out prevention (BOP) stack (4); a hydraulic workover (HWO) ja...
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WO2006044763B1 |
The invention relates to a running tool for subsea junction plate assembly installation. The invention further relates to a method for installing a junction plate assembly using the running tool of the present invention.
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WO2006033906B1 |
A subsea well pumping system for installing and retrieving a hydraulically actuated down hole pump employed within tubing suspended within casing extending above a seabed including a wellhead assembly affixed to the upper end of the casi...
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WO/2007/021337A1 |
A Vertical Annular Separation and Pumping System (VASPS) utilizing a outer annulus liquid discharge arrangement to replace a standard pump shroud associated with an electrical submersible pump. The outer annulus liquid discharge arrangem...
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WO/2006/101618A2 |
A method and apparatus for treating a subterranean section surrounding a wellbore with a fluid. In one embodiment, the apparatus comprises a three- dimensional tubular element capable of fluid flow in a wellbore with at least one burst d...
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WO/2006/086165A2 |
An apparatus for controlling the flow of a medium. The apparatus comprises a base having a plurality of arms extending from the base. The base and arms define a cage. A valve member is positioned within the cage. The apparatus further in...
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WO/2006/079659A1 |
A method is provided of installing an expandable tubular element in a wellbore. The method comprises lowering the tubular element into the wellbore whereby an annular space is formed between the tubular element and the wellbore wall, loc...
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WO/2006/070204A2 |
A whipstock system comprising: a whipstock (4) having a deflection face (6), a recess (49) being formed in the bore into a subsurface formation and having one or more blades (34) and a locking projection (35), wherein the locking project...
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WO/2006/061410A1 |
A method is provided for adapting a tubular element extending into a wellbore formed in an earth formation, the tubular element being susceptible of damage due to axially compressive forces acting on the tubular element due to compaction...
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WO/2006/056735A1 |
A sidetracking system has a pair of serially connected mills (8, 9), each having a plurality of circumferentially arranged blades having a tapered cutting portion (82, 93) thereon for cutting a window in a casing and then sidetracking in...
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WO/2006/051324A1 |
A device and method for cutting a downhole object, such as a slickline, wireline or tubular is described. The device comprises first (20) and second (22) cutting members each rotatably mounted within a main housing (14) and adapted for c...
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WO/2006/051317A1 |
An improved valve for sealing a wellbore and method of use, in particular for prevention of well blow outs. In one embodiment, the apparatus is designed to seal a well (11) through rotation of rams (15A, 15B). The rams may be actuated to...
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WO/2006/053248A2 |
A method and apparatus for down hole abrasive jet-fluid cutting, the apparatus includes a jet-fluid nozzle (4) and a high pressure pump (19) capable of delivering a high-pressure abrasive fluid mixture to the jet-fluid nozzle (4), an abr...
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WO/2006/025829A1 |
A pipeline installation and maintenance method and system is disclosed in which a number of interconnectible platform modules are assembled into drilling platforms from which a segmented pipeline route is flexibly installed. Using modifi...
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WO/2006/023951A1 |
A method of downhole milling of an item having high chrome/high nickel content, using polycrystalline diamond cutting elements, exhibiting less wear, requiring less torque and weight, and producing less heat, than prior art tungsten carb...
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WO/2006/020206A2 |
Milling in casing that is over 4-1/2 inches is done with coiled tubing that is anchored against torque reaction. An improved debris catcher is part of the bottom hole assembly to capture cuttings from the milling. A thruster can be used ...
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WO/2006/020590A1 |
For production of hydrocarbons with high and medium gas-oil ratio from a well with a wellhead and a bottomhole communicating with a formation, and with a casing and a tubing located inside the casing and forming a space therebetween, ste...
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WO/2006/014895A2 |
The present invention provides a method, apparatus, and system to shear a tubular member disposed in a well and seal the wellbore using a unique blade seal. In at least one embodiment, the blade seal is adapted to interface with opposing...
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WO/2006/012530A1 |
The invention discloses a patch for placement in a wellbore and associated methods. The patch has a longitudinal member and an anchor that is radially expanded to engage the wall of the borehole to secure the patch against axial and radi...
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WO/2006/009763A1 |
Drilling a well to total depth without tripping the bit out of the hole despite encountering a troublesome zone is made possible by using a memory based composite material delivered with the drill pipe or advanced over it, as needed. The...
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WO/2005/111369A1 |
A system for supporting multiple-well-site, offshore, hydrocarbon-bearing fields, each well-site has one or more wells. In general, the system first comprises a floating vessel that is relocatable from a first subsea well-site to a secon...
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