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WO/2020/041238A1 |
A diffuser assembly is provided which includes an upper mounting member mountable within a conduit and having an fluid inlet port, and a lower section having a diffuser screen. A plurality of radially oriented cutters are removably attac...
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WO/2020/031075A1 |
A percussion device including an input side and an output side, the input side is configured to be rotationally driven and the output side is rotationally driven by the input side via a drive transmitter/drive transmitter pathway combina...
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WO/2020/024604A1 |
A submarine drilling rig core-fetching cable device employing two-stroke pushing of a cylinder comprises a drilling power head (10), a drilling power head slide rail frame (1), a pushing cylinder (8), a steel cable two-stroke push-operat...
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WO/2020/025948A1 |
A single trip casing cutting and pulling assembly which includes a casing spear (12), a mud motor (16) and a casing cutter (18), wherein a valve (14) is located between the casing spear (12) and the mud motor (16). The casing spear is op...
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WO/2020/023455A1 |
A central shaft defines a first interior flow path. The central shaft disposed at least partially within a washover pipe. A lead tapered mill is positioned at a downhole end of the central shaft to center the downhole-type milling tool w...
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WO/2020/018206A1 |
A system used to dislodge and, if necessary, sever a tubular string that is stuck within a cased wellbore. The system utilizes ajar, a plurality of plugs, and a tubular severance device. Components of the system are carried to their resp...
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WO/2020/014206A1 |
Systems and methods for moving a tubular string within a subterranean well include a collar tool assembly that has a tubular body. The tubular body has an inner bore that is in fluid communication with an inner bore of the tubular string...
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WO/2019/240835A1 |
Systems and methods remove and/or collect magnetic debris from drilling fluid and have a sleeve with a length defined between first and second ends of the sleeve, wherein the first end of the sleeve is connectible to at least one portion...
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WO/2019/239100A1 |
A method and apparatus for determining a free point (114) of stuck casing (12) in a well bore. Apparatus includes a jack (18) being anchored to upper casing (14) and a casing spear (20) connected to a first portion, typically the mandrel...
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WO/2019/236529A1 |
Systems and methods for fishing a metal object from a subterranean well include a fishing tool with housing, the housing being an elongated member having an internal bore. A first electromagnetic assembly is located within the internal b...
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WO/2019/232228A2 |
Systems and methods for moving a tubular string within a subterranean well include a downhole assembly. The downhole assembly includes a torque disconnecting member and a shock generating member. During normal drilling activities, both c...
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WO/2019/224551A1 |
An apparatus and method for anchoring a string at a well for the purpose of cutting a tubular (30) which includes an anchor mechanism (110) being a tubular body (60) having a cone (116) arranged around the body, a plurality of selectivel...
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WO/2019/226331A1 |
An actuator assembly with integrated torque turn monitoring is described. Embodiments include a rotationally fixed outer hydraulic section and a rotationally independent inner hydraulic section which incorporates torque load sensors and ...
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WO/2019/222241A1 |
Coiled tubing may be placed inside a subsea flowline, such as with a subsea insertion tool, to remediate blockages in the flowline subsea. In embodiments, the subsea insertion tool is used to unspool a length of coiled tubing string from...
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WO/2019/215519A1 |
A method for recovering a conduit from a wellbore (1) includes positioning an expander tool (4) having at least one biasing element (7) within the conduit an expander tool and exerting a force against the at least one biasing element (7)...
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WO/2019/211602A1 |
A single trip casing cutting and pulling assembly (10) which retrieves the seal assembly (36) on the same trip. The assembly includes a casing cutter (12), a casing spear (14), and a wear bushing (18) and seal assembly retrieval device b...
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WO/2019/207280A1 |
A latch tool for a wireline toolstring comprises an anchor assembly that is attached to a support structure. A core assembly is configured for axial movement relative to the anchor assembly. The anchor assembly and the core assembly prov...
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WO/2019/209824A1 |
Provided are systems and methods for freeing differentially stuck pipe via the in-situ release of fluids from fluid-releasing tanks coupled to a centralizer or stabilizer of a pipe. Fluid-releasing tanks may be coupled to a centralizer o...
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WO/2019/177862A1 |
A method and apparatus for removal of tools, tubulars, casing, or other components that become stuck in a well. An anchor includes a mandrel, a carrier disposed on the mandrel and movable relative to the mandrel between an extended posit...
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WO/2019/168588A1 |
A method of dislodging a tubular string or well equipment connected to the tubular string can include connecting a dislodging tool in the tubular string, so that a flow passage of the dislodging tool extends through the tubular string, d...
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WO/2019/164404A1 |
A jarring device 100 and method for applying an impact to a casing 10 of a wellbore in a subterranean or subsea formation. The jarring device 100 comprises: a hammer 120 and a driving means 110 for driving the hammer 120 between a first ...
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WO/2019/157134A1 |
A drilling jar in an oil and gas drilling operation or fishing operation includes a control unit having one or more transceivers configured to communicate wirelessly with a surface control unit. The control unit is configured to receive ...
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WO/2019/141974A1 |
A jarring apparatus comprises first and second jarring assemblies rotatable relative to each other. A first impact surface is provided on the first jarring assembly and a second impact surface is provided on the second jarring assembly, ...
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WO/2019/141975A1 |
A jarring apparatus comprises first and second jarring assemblies which are axially moveable relative to each other between first and second axial configurations, and a thrust assembly interposed between the first and second jarring asse...
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WO/2019/133873A1 |
A conveyance model 710 for predicting an output 730 in response to an input, wherein: the input comprises one or more of a wireline input 722, a toolstring input 724, a well input 726, and/or a conveyance input 728; and the output compri...
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WO/2019/116109A2 |
An apparatus of removing substances from horizontal wells drilled from a surface comprises: a casing, a tubing disposed within the casing, a downhole pump connected to an end of the tubing, and a production conduit attached to the downho...
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WO/2019/106374A1 |
A downhole casing cutting and removal assembly (10) and method of use thereof, the assembly comprising a work string (23) with a cutting mechanism (18) and plurality of resettable anchor mechanisms (20B-20D). The arrangement allows a tes...
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WO/2019/108931A1 |
Systems and methods for moving a tubular string within a subterranean well include a structural ring sized with a ring inner diameter to circumscribe the tubular string and a ring outer diameter to fit within a bore of the subterranean w...
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WO/2019/108914A1 |
Systems and methods for moving a tubular string within a subterranean well include a ring assembly. The ring assembly includes a structural ring sized with a ring inner diameter to circumscribe the tubular string and a ring outer diamete...
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WO/2019/104007A1 |
The invention relates to the cleaning of a wellbore including a reservoir liner 3 and an upper portion 2 of the wellbore, by running in only one string into the wellbore and performing a reservoir liner cementing operation, displacing th...
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WO/2019/077518A1 |
A drilling apparatus and a method for releasing rods stuck in surrounding ground are described, that use a torsional device for releasing the drilling assembly and induce centrifugal forced vibrations and bending vibrations in the drilli...
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WO/2019/064005A1 |
The present invention relates to systems and methods for removing equipment such as foot valves and bottom-hole pumps from inside oil wells by means of "fishing" techniques. In this scenario, the present invention provides a system for r...
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WO/2019/060684A1 |
A mechanical service tool that may include one or more anchors, a cutter, a communication and control system, and one or more sensors, as well as methods for operating the mechanical service tool, are provided. The one or more anchors ma...
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WO/2019/055482A1 |
A tubular string is cut using a severing system deployed from the rig floor inserted through the BOP into the tubular string and landed in a fit-for-purpose wellhead. The cutting operation forms an excess tubular string and a remaining t...
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WO/2019/036230A1 |
A downhole release mechanism for a drillstring. A first, uphole section and a second, downhole section comprise longitudinal bores and are rotationally locked together via a spline. A collet assembly is connected to the first section, wi...
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WO/2019/035726A1 |
A fishing tool (1) configured to retrieve a fish (100) from a wellbore, having a fish engagement arrangement (3) with fish engagement means (5) configured to lock the fishing tool to the fish inside a well. The fishing tool (1) has an el...
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WO/2019/032149A1 |
The present disclosure relates to a method and apparatus for removing debris from a wellbore, comprising providing a surface pump for supplying a fluid stream, a work string fluidly connected to the surface pump for passing the fluid str...
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WO/2019/027759A1 |
An unbalanced sub-assembly is located within the wellbore casing shoe. The unbalanced sub-assembly includes a turbine and a shaft coupled to the turbine at a first end of the shaft. The unbalanced sub-assembly is configured to rotate and...
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WO/2019/027758A1 |
An unbalanced sub-assembly includes a turbine and a shaft coupled to the turbine at a first end of the shaft. The unbalanced sub-assembly is capable of rotating and imparting a vibration to the casing in response to a fluid being passed ...
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WO/2019/020590A1 |
The present invention relates to a retrieval system for retrieving a well component, such as a plug, from a well tubular metal structure having a restriction and a top, said retrieval system comprising a tool string having a longitudinal...
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WO/2019/009736A1 |
A gripping device (1) adapted for handling equipment (10) with a drill string (5), wherein an annular actuator housing (2) includes a hydraulically activated, rotatable cam disc (4) which is arranged to displace a number of locking slide...
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WO/2018/222190A1 |
Slow-rotating tools may operate within a tubular structure such as casing or tubing strings in a wellbore, e.g., to clean an interior surface of the tubular structure or to support other wellbore applications. A slow-rotating tool may in...
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WO/2018/217096A1 |
An assembly for performing a survey of tubing which is stuck in a borehole is described, together with a related method and a device for use in the assembly. In various embodiments, the assembly has a tractor for advancing the assembly a...
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WO/2018/211319A1 |
An impact apparatus operable to be coupled along and impart an impact to a downhole tool string. The impact apparatus includes a housing, a first and second chambers within the housing, and a piston shaft assembly movable with respect to...
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WO/2018/204054A1 |
Systems and methods of forming a seal employ a robust metal sealing unit for tubulars used in rotary drilling. Specifically, eutectic alloy is used to seal a tubular to a wellbore after drilling. A downhole heater melts the alloy, allowi...
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WO/2018/203064A1 |
A method and apparatus for casing recovery for well abandonment. A string is run-in, the string including a hydraulic jack (18), an anchor (28), a casing spear (20), a downhole flow pulsing device (22) and a pressure drop sub (24). The c...
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WO/2018/203062A1 |
A method and apparatus for single-trip casing cutting and pulling for well abandonment and slot recovery. Perforations (28) are made in the casing (12) at a maximum depth using a punch tool (18) and fluid circulated through the perforati...
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WO/2018/203063A1 |
A method and apparatus for single-trip casing cutting and pulling for well abandonment and slot recovery. Perforations (28) are made in the casing (12) at a maximum depth using a punch tool (18) and a pulsed fluid circulated through the ...
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WO/2018/174718A1 |
A method is described for making an opening (100) through a casing pipe (12) in a well (10) in which equipment is tipped to cut out the opening and cut out pieces from the pipe wall are captured, and also that a drill wedge is fitted in ...
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WO/2018/165069A1 |
A method and apparatus for cutting and pulling a casing string from a well. A downhole casing pulling tool includes a tubular housing having a bore therethrough, a packer assembly configured to isolate an annulus between a casing and the...
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