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WO/2009/137537 |
Embodiments of the present invention generally relate to signal operated tools for milling, drilling, and/or fishing operations. In one embodiment, a mud motor for use in a wellbore includes: a stator; a rotor, the stator and rotor opera...
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WO/2009/137720 |
A bidirectional drilling jar, capable of repeated unidirectional firing, including a sliding assembly that is disposed in a sliding relation to the interior of a barrel assembly. A portion of the inner diameter of the barrel assembly for...
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WO/2009/137720 |
A bidirectional drilling jar, capable of repeated unidirectional firing, including a sliding assembly that is disposed in a sliding relation to the interior of a barrel assembly. A portion of the inner diameter of the barrel assembly for...
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WO/2009/137537 |
Embodiments of the present invention generally relate to signal operated tools for milling, drilling, and/or fishing operations. In one embodiment, a mud motor for use in a wellbore includes: a stator; a rotor, the stator and rotor opera...
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WO/2009/134886 |
A vibrating downhole tool including a housing, an inner mandrel disposed within the housing and configured to receive a drilling fluid, a mass coupled to the inner mandrel, and a plurality of turbine blades configured to receive the dril...
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WO/2009/132645 |
The invention relates to the "catching and gripping or releasing of objects in a borehole by gripping from outside for example by overlapping" (E21B 31/18) with a grappler, by means of which a cable core barrel or another tool (for examp...
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WO/2009/132645 |
The invention relates to the "catching and gripping or releasing of objects in a borehole by gripping from outside for example by overlapping" (E21B 31/18) with a grappler, by means of which a cable core barrel or another tool (for examp...
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WO/2009/135047 |
A portable hydraulic rig (10) for workover, drilling or other operations on existing wells in which the rig has a derrick (12) elevated on a base structure comprised of containers (14) for equipment used in association with drilling or w...
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WO/2009/134886 |
A vibrating downhole tool including a housing, an inner mandrel disposed within the housing and configured to receive a drilling fluid, a mass coupled to the inner mandrel, and a plurality of turbine blades configured to receive the dril...
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WO/2009/123467 |
An impact sub device (1) for use in a borehole where the impact sub device (1) in its first end portion (32) is connected to an object (8) to which a blow shall be imparted, and where the impact sub device (1) in its second end portion (...
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WO/2009/120957 |
A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube is disclosed. A m...
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WO/2009/120957 |
A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube is disclosed. A m...
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WO/2009/102703 |
A self adjusting excluder sub includes a first subassembly; a second subassembly with respect to which the first subassembly is axially movable; and a support disposed at the second subassembly and when actuated being resiliently dispose...
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WO/2009/102705 |
A debris catching device for downhole milling features modular debris receptacles that are held in the housing in a manner that facilitates stacking and a generally undulating flow path to facilitate dropping of the debris into the recep...
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WO/2009/102703 |
A self adjusting excluder sub includes a first subassembly; a second subassembly with respect to which the first subassembly is axially movable; and a support disposed at the second subassembly and when actuated being resiliently dispose...
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WO/2009/102705 |
A debris catching device for downhole milling features modular debris receptacles that are held in the housing in a manner that facilitates stacking and a generally undulating flow path to facilitate dropping of the debris into the recep...
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WO/2009/073960 |
A shear assembly is disclosed which may be used downhole to actuate a work string function. The shear assembly includes a dampening subassembly to dampen the momentum of moving parts following shearing to avoid excessive acceleration and...
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WO/2009/047708 |
A method of using jarring tool in a wellbore, where the jarring tool is electrically activated to apply an impact force transmitted to at least another tool in the well. The method may further comprise operating a hydraulic mechanism in ...
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WO/2009/047708 |
A method of using jarring tool in a wellbore, where the jarring tool is electrically activated to apply an impact force transmitted to at least another tool in the well. The method may further comprise operating a hydraulic mechanism in ...
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WO/2009/029400 |
A wellhead removal tool features a rotary cutter run by a Moyno type progressive cavity pump that is powered by fluid pumped through it. The stator of the motor has a gripping device with a series of collets or slip inserts that have gri...
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WO/2009/028953 |
A method and device for removing the upper portion of a well (20) arranged in the ground, the upper portion of the well (20) including at least a portion of a casing (24) extending from the surface down into the ground (28), and, before ...
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WO/2009/012178 |
Method and apparatus for decreasing drag force in a mechanism for releasing a mandrel is provided. The mandrel is released by a collet, which is controlled by a trigger sleeve. Most of the axial force on the collet is relieved, thereby d...
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WO/2009/012178 |
Method and apparatus for decreasing drag force in a mechanism for releasing a mandrel is provided. The mandrel is released by a collet, which is controlled by a trigger sleeve. Most of the axial force on the collet is relieved, thereby d...
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WO/2009/002185 |
A magnet fixing device in a cleaning tool (1) for use in a borehole where the cleaning tool (1) is externally provided with at least one projection (8) and at least two recesses (6) and where at least one magnet (12) is disposed in the p...
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WO/2009/002181 |
Arrangement (1) for separation of a cable (18) suspended downhole tool string of the type used in oil and/or gas wells (16), wherein the point of separation is between the tool string and the cable (18) or in the tool string itself. The ...
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WO/2008/153406 |
The present invention concerns a liquid pressure activated sequence valve for use in generating oscillating hammering movements, in which the sequence valve comprises a valve design comprising an outer housing (1) connected to adapters (...
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WO/2008/127838 |
Devices and methods for translating tubulars within a wellbore and, as a result, effectively freeing a stuck tubular string within a wellbore. One or more vibrator devices are incorporated into a tubular string, such as a drill string. E...
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WO/2008/127740 |
A tubular running system including a torque frame, a main shaft extending through a top opening of the torque frame and rotatable by rotation apparatus, slip setting apparatus connected to the torque frame and including a levelling beam ...
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WO/2008/127258 |
A fishing tool [10] for fishing sucker rods [12] from a subterranean well [14]. A body of the tool [10] is a machined top piece [16], a machined barrel piece [18] and normally a machined bottom piece [20] that all thread together. The bo...
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WO/2008/127740 |
A tubular running system including a torque frame, a main shaft extending through a top opening of the torque frame and rotatable by rotation apparatus, slip setting apparatus connected to the torque frame and including a levelling beam ...
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WO/2008/118697 |
A casing cutting and recovery tool (10) having a cutting assembly (21), an expansion assembly(60) having one or more deforming members (66), and a recovery assembly (80) is used to cut a window in wellbore casing, secure a removable segm...
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WO/2008/118697 |
A casing cutting and recovery tool (10) having a cutting assembly (21), an expansion assembly(60) having one or more deforming members (66), and a recovery assembly (80) is used to cut a window in wellbore casing, secure a removable segm...
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WO/2008/115952 |
A hydraulic jar for a drilling assembly is disclosed. In some embodiments, the hydraulic jar includes a tubular housing, a mandrel disposed in the housing, an annulus between the mandrel and the housing, and a pressure relief mechanism d...
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WO/2008/107774 |
The present disclosure provides, among other things, apparatuses and methods for sensing subsurface data. One embodiment comprises borehole conveyance system tool, the borehole conveyance system tool comprising a conveyance, a sensor arr...
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WO/2008/095233 |
An overshot tool (10) for bore hole operations has a swivel shaft (42) at its upper end for connecting the overshot (10) to a wireline rope, a locator body (11) at its lower end which has a pair of lifting dogs (12) for engaging an artic...
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WO/2008/036815 |
An overshot tool for retrieving an object in a well includes a housing having a housing bore with upper and lower portions. A cam having a cam bore is carried in the upper portion of the bore. The housing and the cam are rotatable relati...
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WO/2008/036815 |
An overshot tool for retrieving an object in a well includes a housing having a housing bore with upper and lower portions. A cam having a cam bore is carried in the upper portion of the bore. The housing and the cam are rotatable relati...
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WO/2008/030620 |
A method of determining the stuck point in a bore hole is provided. The method employs a device, such as an inductor or coil (19), for writing magnetic marks into the bore hole casing. The device is incorporated into a retrieval tool (16...
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WO/2008/016308 |
The present invention relates to an arrangement for the repeated mechanical triggering of various types of downhole equipment, the arrangement comprising a spring element (4) and a string section (1 ). The invention is characterized in t...
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WO/2008/007066 |
A fluid actuated downhole tool for inducing movement of a downhole apparatus is described. The tool comprises a body for coupling to downhole apparatus, the body being adapted to accommodate flow of fluid therethrough and including a flo...
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WO/2007/149112 |
An aqueous mixture of a non-toxic, low pH, antimicrobial, acidic composition having a pH between approximately 0.5 and approximately 3.5 is used in a drilling fluid and a stuck pipe additive. One embodiment of the stuck pipe additive com...
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WO/2007/140612 |
A method for reverse circulating a tool upwardly through a wellbore, the method including: providing a manipulator tool including an upper end and a lower end, conveying the manipulator tool down hole to a position adjacent a downhole to...
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WO/2007/136667 |
A downhole magnetic debris tool (100) is disclosed that may be connected to the bottom of a packer isolation plug. The downhole magnetic debris tool may include a magnetic shield assembly (90) that shields the magnets (110) and prevent t...
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WO/2007/114706 |
The present invention relates to an adapter device for controlling the impact movement of two oppositely facing hydraulic hammers (1, 2). The invention is characterized in that it comprises two cylindrical main parts (8, 9) being mutuall...
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WO/2007/051969 |
Zonal isolation of well bores is often desirable for performing downhοle operations such as stimulation operations. In certain embodiments, diverter plugs (310) for achieving zonal isolation in a casing string (330) in a well bore may c...
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WO/2007/051970 |
Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs (310) for achieving zonal isolation in a casing string (330) in a well bore may co...
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WO/2007/041778 |
An overshot tool (10) for bore hole operations comprising a lower end portion (11) including lifting dogs (12) for engaging an article such as a tube in a bore hole, a first jar staff (15) engaged with the upper end of the lower end port...
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WO/2007/030293 |
A cable hanger for use in a cable-guided fishing operation is disclosed. The disclosed invention provides a cable hanger in which a specially-shaped hanger body is connected to a handle having a cable groove running through it. The cable...
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WO/2007/030336 |
A C-plate assembly for use in a cable-guided fishing assembly is disclosed. The disclosed invention provides a C-plate assembly in which a closure member is slidable from an open position, which allows a wellbore tubular or other item to...
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WO/2007/030262 |
Disclosed is an improved spear head overshot. The spear head overshot is particularly useful as part of a cable-guided fishing assembly. The spear head overshot essentially comprises one or more pivot lugs, the pivot lugs comprising jaw ...
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