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Patent Searching and Data


Matches 1 - 50 out of 695

Document Document Title
WO/2021/059304A1
The expandable well fishing tool used in drilling is a controllable mechanical device that contains electronic and hydraulic components and is used as a fishing tool in oil and gas wells. If one of drilling tools or equipment falls into ...  
WO/2021/046115A1
An apparatus includes a tubular, pressure sensors, expandable pads, a hydraulic chamber, and a computer system. The apparatus can be run in a wellbore. The apparatus is configured to detect whether the tubular is stuck within the wellbor...  
WO/2021/034811A1
An apparatus includes a housing, engagement slips, a tubular, a taper tap, a pin, and a slip activation member. The housing includes a profile that defines a path including a first end and a second end. The engagement slips are attached ...  
WO/2020/260545A1
A method of severing casing of an inner casing string located inside an outer casing string in a well bore, without damaging the outer casing string. A casing severing tool is run into the inner casing string and by determining a locatio...  
WO/2020/256563A1
The invention is a casing retrieval drill pipe string (0) conveyed toolstring assembly (1) for a well comprising one or more casings (130, 120, 118), said toolstring assembly comprising: - a casing spear tool (30) arranged for engaging a...  
WO/2020/239642A1
A downhole actuator (16) includes a piston (15) within a chamber (17) on which fluid can act on either side to hydraulically activate the actuator. A hydrostatic equilibrium device (18) and a valve (14) are mounted around the hydraulic a...  
WO/2020/232035A1
Systems and methods for unsticking a tubular string (104) in a subterranean well (100) that is a stuck pipe include securing a circulation sub (116) to an uphole end of the tubular string (104) outside of the subterranean well. The buoya...  
WO/2020/229564A1
A recovery assembly which includes an anchoring device (38) and jacking tool (34) which incorporates a resetting mechanism (270). The jacking tool (34) is positioned below a cut point (22) on tubing (24) and grips the remaining tubing wh...  
WO/2020/227306A1
A drilling assembly includes a hydraulic amplifier assembly, a driver, a bearing housing, and a shaft. The hydraulic amplifier assembly is configured to increase a pressure of a drilling fluid so as to produce a pressurized drilling flui...  
WO/2020/212247A1
A thrust bearing comprises a mandrel and a bearing assembly mounted axially along the mandrel. The bearing assembly comprises a bearing housing and a bearing piston axially and rotatably mounted relative to each other, and a plurality of...  
WO/2020/205461A1
A drill rig having a longitudinal drilling axis, a front portion, and a rear portion can comprise a feedframe aligned with the longitudinal drilling axis, a first head assembly coupled to the feedframe and configured to rotate a drill st...  
WO/2020/176352A1
An apparatus and method for performing automated pump-down operations. An apparatus may include a control system configured to be communicatively connected with a fluid pump disposed at a wellsite surface and with a conveyance device dis...  
WO/2019/177707A9
A system including a gripping tool and a rotary cutting tool may be used to grip a section of casing while cutting through a lower portion of the casing in a single trip. The gripping tool includes a mandrel with a flow bore extending th...  
WO/2020/165369A1
A vibratory casing recovery bottom hole assembly and a method of recovering casing in a wellbore. The vibratory casing recovery bottom hole assembly includes a casing spear, a flow modifier and a dynamic amplification tool. The flow modi...  
WO/2020/167688A1
One downhole-type tool of a set of interchangeable downhole-type tools is interchangeably received by a pump-down adapter. The downhole-type tool is positioned by the pump-down adapter within a wellbore tubular. The downhole-type tool is...  
WO/2020/165364A1
A method of recovering casing in a wellbore using a vibratory casing recovery bottom hole assembly. In a vibratory casing recovery bottom hole assembly having a casing spear, a flow modifier and one or more further elements including a s...  
WO/2020/165367A1
A method and apparatus for casing recovery in well abandonment using a hydraulic jack and a downhole flow pulsing device to create a cyclic pressure on the fluid used to move a piston of the jack and thereby oscillate a mandrel of the ja...  
WO/2020/151249A1
Disclosed is a cable-type hydraulic jar, comprising an upper connector assembly (1), a balance accelerating assembly (2), a jarring assembly (3) and a lower connector assembly (4) connected in sequence. The upper connector assembly (1) a...  
WO/2020/146143A1
A jarring tool can include a longitudinally displaceable piston, a first fluid chamber having a volume that decreases in response to displacement of the piston, a flow controller that controls flow of fluid between the first fluid chambe...  
WO/2020/131031A1
Provided, in one embodiment, is a pulling prong. The pulling prong, in one example, includes an outer housing, and a nose assembly slidably located within the outer housing. In this example, the nose assembly and outer housing form an ac...  
WO/2020/122732A1
A drilling assembly(1), comprising a drill bit (5) and a cutting assembly (2), - said drilling assembly (1) forming a longitudinal center axis (9); - said drill bit (5) and cutting assembly (2) being fastened to a rotatable spline drive ...  
WO/2020/104771A1
A thru-tubing recovery string (10) and method of moving a stuck object (14) in tubing in a well (16). A bottom hole assembly (22) is connected to a work string and includes a first (32) and a second tool (34), each tool configured to app...  
WO/2020/104770A1
A signalling mechanism (10) in a downhole pulling tool (12), with an arrangement of stacked pistons (22), which indicates the operational status of the downhole pulling tool. When the downhole pulling tool (12) is stroked, sleeve members...  
WO/2020/095043A1
A method for use in retrieving casing from a wellbore comprises running a tool string having a casing cutter, a casing anchor and a jarring apparatus into the cased wellbore, operating the casing anchor to anchor the tool string to the c...  
WO/2020/089734A1
Unstuck system (10) of stuck drill pipes (25) of a drill string (20) of a drilling apparatus (100) adapted to drilled wells to extract fluids or mud, a torsion coupling system (40) adapted to disconnecting an upper portion (21) from a bo...  
WO/2020/079406A1
A method and apparatus for casing recovery in which a clean-up of the inside of the outer casing above the inner casing is performed on the same trip in the wellbore as cutting and pulling a section of the inner casing. A bottom hole ass...  
WO/2020/072325A1
A downhole release apparatus (200) having a first connector sub (202) connectable with a first portion (112) of a tool string and a second connector sub (204) connectable with a second portion of the tool string (114). The first connecto...  
WO/2020/058687A1
The present invention relates to a magnetic cleaning tool (100) for removing ferrous debris from within a BOP, riser or wellbore, the tool comprising: a tool body having a longitudinal axis, and one or more magnets (104) configured to ro...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2019/232228A3
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...  
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...  
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...  
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...  
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...  
WO/2019/116109A3
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/2019/224551A1
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...  
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 ...  
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...  
WO/2019/177862A4
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...  
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)...  
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...  
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...  
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...  
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...  

Matches 1 - 50 out of 695