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Patent Searching and Data


Matches 1 - 50 out of 637

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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 ...  
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...  
WO/2018/156977A1
A releasable tool using an electronic motor to drive a differential to engage or release a quick change sub that may be coupled to additional downhole tools, such as a perforating gun string.  
WO/2018/157144A1
Apparatus and methods for penetrating a downhole target within a wellbore include providing a body with a longitudinal axis, a first end, and a second end into a wellbore, the body having a nozzle at the first end. The nozzle is adapted ...  
WO/2018/152385A1
A downhole tool (100) for use within a wellbore (110) extending into an underground formation includes a wellbore wall disengaging assembly (108) having a tubular string (102) defining a longitudinal axis, and a plurality of longitudinal...  
WO/2018/152089A1
A reverse-circulation drilling assembly having an overshot subassembly and a head subassembly. In the event retrieval of the drilling assembly by reverse-circulation fails, the drilling assembly can be retrieved using a secondary overshot.  
WO/2018/112153A1
A releasable tool using an electronic motor to drive a collet and associated collet arms to engage or release a quick change sub that may be coupled to additional downhole tools, such as a perforating gun string.  
WO/2018/085086A1
A fishing tool for a fishing arrangement to remove a stuck fish or object from a wellbore. The fishing tool includes an overshot housing which defines an interior chamber. An inflatable bladder element resides within the interior chamber...  
WO/2018/083473A1
Method and apparatus for removing a downhole casing from a well on a single trip. A downhole tool assembly is arranged on a work string having a downhole pull tool, a spear tool, motor unit and cutting device. The downhole pull tool is s...  
WO/2018/064457A1
Embodiments of a vertical pipe handler system (50) and method of its use include a casing tong handling tool (10) connected to a lifting tool (55) having a gripper head (51) and supported by an arm (53) of the vertical pipe handler syste...  
WO/2018/057949A1
An orienting system for precisely aligning downhole tools with respect to each other, such as perforating guns, exploration tools, or other completions tools. The orienting system provides for orienting a first tool with respect to a sec...  
WO/2018/026849A1
Apparatus and method for drilling a wellbore using non-synchronous oscillators. An apparatus for drilling a wellbore includes a tubing string and a bottom hole assembly coupled to the tubing string. The bottom hole assembly includes a fi...  
WO/2018/005598A1
A debris removal tool for removal of metallic debris from within a wellbore. The debris removal tool includes a housing defining a central bore and a plurality of magnetic members retained within the central bore and axially moveable the...  
WO/2018/005880A1
A system includes a wear bushing retrieval tool. The wear bushing retrieval tool an annular main body configured to be disposed about a tubular string, a plurality of locking dogs, wherein each locking dog of the plurality of locking dog...  
WO/2017/192043A1
An arrangement (1) and a device (10) for providing a separating cut in a materia! of a wellhead of a hydrocarbon well. The device (10) comprises a support structure (14), an attachment arrangement and a cutting device (40). The attachmen...  
WO/2017/192045A1
An arrangement (1 ) and a device (10) for operation on a wellhead (3) of a hydrocarbon well. The device comprises a support structure (14) and an attachment arrangement. The device is adapted to be inserted in an opening (12) of the well...  
WO/2017/182549A1
Apparatus and method for removing a section of casing or lining from a wellbore. A tubular mandrel has a sliding assembly mounted thereon with grippers coupled to the assembly so that the grippers can be moved between an engaged configur...  
WO/2017/171557A1
A method for operating a drilling plant machine, comprising the steps: providing a sensor on the drilling plant machine, the sensor operable to measure at least one parameter indicative of a jarring load acting on the drilling plant mach...  
WO/2017/171557A8
A method for operating a drilling plant machine, comprising the steps: providing a sensor on the drilling plant machine, the sensor operable to measure at least one parameter indicative of a jarring load acting on the drilling plant mach...  
WO/2017/160981A1
A tool for retrieving material from a well. The tool has a cylindrical tool body, malleable members, and a cylindrical jacket. The tool body defines a chamber adapted to receive material for retrieval. The malleable members are on the lo...  
WO/2017/158573A1
A gear system (10) comprises a modular gear assembly (124,125,127) which is housed in a gear assembly housing (114). The gear assembly housing (114) is adapted to be connected to another gear assembly (124,125,127) which drives an output...  
WO/2017/151471A1
A jarring tool used to dislodge a stuck tubular string or bottom hole assembly within an underground wellbore. Tubular strings with which the tool may be used may be formed from drill pipe, jointed pipe, or coiled tubing. A funnel elemen...  
WO/2017/151325A1
An actuator assembly for operating a tubular running device includes a housing assembly coupled to the outer cage. The housing assembly is movable relative to the inner mandrel. An upper fluid chamber is disposed between the housing asse...  
WO/2017/147077A1
A jarring tool includes a spring and a hydraulic piston cylinder arrangement for controlling the release of a mandrel to initiate a jarring force. The tool includes an adjustment mechanism for adjusting the minimum amount of an upward pu...  
WO/2017/142417A1
A machining unit (1) for milling material off an, in the position of application, surrounding pipe wall (41 1) in a borehole (4) in an underground structure (42) is described, wherein the machining unit (1) is connected to a rotary-drive...  
WO/2017/139239A1
Alkyl ester spotting fluid compositions and processes for freeing differentially stuck pipe are provided. An alkyl ester spotting fluid composition includes an invert emulsion having an alkyl ester as the external phase and water as the ...  

Matches 1 - 50 out of 637