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Patent Searching and Data


Matches 1 - 50 out of 597

Document Document Title
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/2017/160981A1
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 ...  
WO/2017/136675A1
Terpene-based spotting fluid compositions and processes for freeing differentially stuck pipe are provided. A spotting fluid composition includes a terpene and an acid, such that the acid initiates an exothermic polymerization reaction o...  
WO/2017/087504A1
An apparatus and method for performing a downhole impact operation. The apparatus comprising: an impact tool (200) operable to be coupled between opposing first (206) and second (210) portions of a downhole tool string and conveyed withi...  
WO/2017/087110A1
In one aspect, an apparatus for inducing vibrations in an object in a wellbore is disclosed that in one embodiment includes a tubular conveyable in the wellbore and has at its bottom end an engagement tool that is configured to engage wi...  
WO/2017/056026A1
A percussion device that includes: - an input side; - an output side; - at least one drive transmitter; - a drive transmitter pathway; - a percussion impactor; and - a percussion anvil; where: the drive transmitter pathway is a circumfer...  
WO/2017/053730A1
A method and system for retrieving a fracturing ball in a wellbore casing. The system includes a wellbore retrieval tool comprising a tool body that is inserted into and transported along the wellbore casing. The tool is sized and config...  
WO/2017/021691A1
A lifting apparatus for lifting drill string components from a wellbore, the lifting apparatus comprising: upper and lower support elements, each of the support elements having a central aperture passing therethrough; a lifting arrangeme...  
WO/2017/013197A1
A lifting device (1) for picking up a member (7) from the bottom of the sea, the lifting device comprising; • - a body (2) extending along a central axis (20) of the lifting device and having means for connection to a hoist cable, • ...  
WO/2017/007331A1
There is described a method of removing equipment from a section of a wellbore, and related apparatus. In embodiments of the invention, a tool string (10) is provided comprising a tractor (15) and a GS-pulling tool (14). The tool string ...  
WO/2016/205927A1
A core barrel head assembly including an upper body comprising a central passage. A pair of latches is arranged in the central passage. Each latch pivots about a pivot point at a first end. Each latch includes a latch release at a second...  
WO/2016/196828A1
Methods and apparatus for alleviating a stuck condition of a tool string, including using a jarring assembly to collide a plurality of impact surfaces together. The collision results in at least a shock wave inducing i) translational mot...  
WO/2016/191261A1
An impact tool for coupling between opposing first and second portions of a downhole tool. The impact tool may include a housing (210, 240) having opposing first and second ends, a first shaft (208) extending from within the housing at t...  
WO/2016/186517A1
The present invention relates to a shrinking tool (1) for shrinkage and recovery of a wellbore tubular, where the tool (1) comprises at least: a. one forming die (15) arranged along the axis of said wellbore tubular, b. one pulling means...  
WO/2016/178561A1
The present invention relates to a method and a tool for enabling removal of tubing from a hydrocarbon well, which tubing is at its upper end provided with a tubing hanger mounted in a central passage of the wellhead. The method involves...  
WO/2016/155852A1
The present invention provides a tool (1) for removing metal debris from a well bore, comprising a magnet element (2), rotation generating means (5), a debris removal unit (3) and a debris container (6), wherein the magnet element compri...  
WO/2016/140678A1
A drilling well pulling tool comprising a longitudinal body having an inner cavity. A sleeve is slideably disposed about a portion of the longitudinal body, the sleeve moveable from a first position to a second position. A dog member is ...  
WO/2016/130324A1
A release mechanism for a jarring tool is formed by a plurality of segmented release lugs. Each lug includes a plurality of axial spaced projections on an inner surface and a plurality of grooves on an outer surface. The projections have...  
WO/2016/130308A1
A release device for a jarring tool includes a collet positioned between the mandrel of the jarring tool and a trigger sleeve. At least one end of the collet is in contact with a precompressed spring via a bushing. In order for the jarri...  
WO/2016/130147A1
In accordance with some embodiments of the present disclosure, a shape memory alloy rope socket for a downhole tool is disclosed. The rope socket includes a coupler formed of a shape memory alloy. The rope socket further includes a housi...  
WO/2016/123451A1
Fluid control assemblies including at least one spiral ring. The fluid control assemblies are used within core barrel assemblies to: provide an indication that a core barrel assembly has reached a drilling position and is latched to a dr...  
WO/2016/099282A1
The invention relates to a method for recovering a tubular structure (3) from a well (1), wherein a so-called free point (4) is defined as the location (2) where the tubular structure (3) is stuck in the well (1). The method comprising s...  
WO/2016/079664A1
The present invention relates to a re-connecting device (1) for connecting and sealing against a damaged existing/remaining tubing (5) in a well bore, a casing string (2) or a pipe, the tubing (5) having smaller diameter than the casing ...  
WO/2016/057040A1
A hydraulic jar coupled between opposing first and second portions of a downhole tool string. The hydraulic jar includes a housing comprising a shoulder protruding radially inward from an internal surface of the housing, a shaft disposed...  
WO/2016/049744A1
A synthetic acid composition for use in oil industry activities, said composition comprising: urea and hydrogen chloride in a molar ratio of not less than 0.1 : 1; cinnamaldehyde or a derivative thereof; optionally, it may further compri...  
WO/2016/049108A1
Apparatus, and methods of use, where the apparatus includes a cylindrical tool main body defining an axial centerline, the main body having a first bladed magnet section having at least one blade extending substantially perpendicular fro...  
WO/2016/039760A1
A method for jarring allowing the operator to selectively control the jarring force while the tool is downhole and a powered bidirectional mechanical jar therefor, is disclosed. The jar includes a housing, an anvil fixed within the inter...  
WO/2016/036349A1
An acceleration predictor and method including at least one digital smoothing filter capable of calculating at least one acceleration estimate. In one or more embodiments, the estimator may include an overlay, an acceleration heat map, a...  
WO/2016/024121A1
An oil or gas well fishing tool (60) is provided. The downhole fishing tool (60) has a receptacle (61) that is open at one end. The tool also has deployment tool engaging means (62), located on the opposite end of the receptacle (61) to ...  
WO/2016/018276A1
A rotary device imposes torque in a first direction for a first period of time causing a screw to exert force in a compression direction, causing a spring to compress. The rotary device does not impose torque for a second period of time,...  
WO/2016/014903A1
A device and system for extracting equipment from a drillstring are disclosed. The system comprises an equipment extraction device having an anchor coupled to the equipment, a housing coupled to an uphole portion of the drillstring, and ...  
WO/2015/199762A1
A jarring tool operable for coupling within and generating an impact imparted to a downhole tool string. The jarring tool includes an upper housing, a lower housing, and a shaft coupled with the lower housing and extending into the upper...  
WO/2015/193799A1
Disclosed is a mechanical force generator for use in a drillstring that provides a sinusoidal or near sinusoidal oscillating output, comprising: a rotatable cam plate connected to a mass, the cam plate having two opposed oblique bearing ...  
WO/2015/188155A1
A friction reduction apparatus (FRA) positioned onto a pipe string comprises a tubular housing, upper and lower mandrels having variously configured fluid flow passages and ports, a valve and a shifter. Fluid travelling through the appar...  
WO/2015/188155A8
A friction reduction apparatus (FRA) positioned onto a pipe string comprises a tubular housing, upper and lower mandrels having variously configured fluid flow passages and ports, a valve and a shifter. Fluid travelling through the appar...  
WO/2015/178935A1
A cable grab assembly includes a body having a longitudinally extending internal cavity disposed therein. A piston is disposed in the cavity and is axially moveable between a first position and a second position. At least two grab arms a...  
WO/2015/171161A1
An electromagnetic jarring tool and related systems and methods provide for the use of an electromagnetic system to generate jarring forces within a wellbore. The electromagnetic jarring tool includes a chamber having a first end and a s...  
WO/2015/160365A1
An apparatus and method for drilling is disclosed, including a drill string with at least one jar and one reaction valve. Drilling fluid flows through the reaction valve. The reaction valve is selectively throttled, which creates a diffe...  
WO/2015/156682A1
The invention relates to a cable-operated hammering tool (20) for downhole operations, comprising an extended cylinder (3) with an axially through-going internal opening in the cylinder (3), a hammering part (10) is arranged in a lower s...  

Matches 1 - 50 out of 597