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Patent Searching and Data


Matches 1 - 50 out of 1,197

Document Document Title
WO/2018/009067A1
An aspect provides a method of removing a liner of a well, the liner comprising a liner material. The method comprises providing a seal in the well for defining an upper and/or lower boundary of a removal space, the space being delimited...  
WO/2017/211825A1
The present invention relates to a downhole operational tool for moving a tool part between a retracted position and a projected position in a well. The downhole operational tool comprises a tool body having an axial extension; the tool ...  
WO/2017/201601A1
The present concept is a method of slot recovery for the oil industry. The method involves running an internal cutter down the production casing to cut through a preselected number of existing casings at predetermined depths before drill...  
WO/2017/205297A1
A borehole mill has blades that extend radially while moving along an inclined dovetail as a result of setting down weight on a mandrel. The blades extend axially beyond the end of the mandrel so that setting down weight disables a retai...  
WO/2017/199037A1
A tool for manipulating a tubular in a downhole environment is described. The tool comprises a housing defining a chamber, the chamber having at least one outlet, a propellant source located within the chamber an ignition mechanism for i...  
WO/2017/197517A1
A tool is provided for diagnosing the downhole source of a surface casing vent flow for remediation of an abandoned well. The tool is run into the bore, the tool having a stack of pleated rings slidably mounted on a tubular mandrel. The ...  
WO/2017/200419A3
The invention relates to the oil and gas industry. The present method includes installing, in a well, high-strength production tubing and a deflector which can be oriented in the interval of the bottom level at which laterals are to be d...  
WO/2017/192883A1
Dual section mills are selectively sequentially operated by locking an actuator for the backup mill as the primary mill has blades extended with internal flow through a housing. When the primary mill is spent the support string is shifte...  
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/2017/187247A1
The invention relates to the development of a hydraulic device for the in situ hermetic sealing of holes, cracks or leaks from joints that occur in underground tubing used for the extraction of oil, gas or other fluids. In particular, th...  
WO/2017/183991A1
A subsea damper unit comprising a cylinder body (C) equipped with an internal damper chamber (9) filled with damper oil (A), said damper chamber (9) contains a through-running piston rod (D) with a piston (7) that divides the damper cham...  
WO/2017/173554A1
An apparatus for bridging a section of ruptured casing within an oil well comprising a length of bridging pipe extending between first and second ends sized to be located within the casing so as to span the section of ruptured casing, a ...  
WO/2017/171933A1
A milling tool includes a cutting insert coupled to a blade. The blade may change from a retracted to an expanded state to engage and cut downhole casing. The cutting insert may include a semi-elliptical body having major and minor diame...  
WO/2017/164878A1
An erosive jet can propel degradable, abrasive grit conveyed in a carrier fluid to erode a downhole structure, such as a tubular (e.g., cutting through a tubular) or formation (e.g., perforation actions). The abrasive grit can be selecte...  
WO/2017/165559A1
An optimal phasing perforating phased gun system and method for accurate perforation in a deviated/horizontal wellbore is disclosed. The system/method includes a gun string assembly (GSA) deployed in a wellbore with shaped charges in clu...  
WO/2017/158077A1
A gate valve assembly (201) comprising a gate valve housing (200) having a through bore (203) arranged for fluid flow and for receiving an elongated member. A gate element (202) is arranged with a gate bore (204) that is provided with a ...  
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/2017/153168A2
A tubular cutting device for cutting a tubular structure enclosing a hollow space from within the hollow space, wherein the tubular cutting device comprises - a device body, - a cutting unit which is drivable to rotate relative to the de...  
WO/2017/153168A3
A tubular cutting device for cutting a tubular structure (10) enclosing a hollow space from within the hollow space, wherein the tubular cutting device comprises: a device body (24), a cutting unit (26) which is drivable to rotate relati...  
WO/2017/155772A1
A system is for forming tunnels in formation radially surrounding a wellbore. The system is characterized by: a perforating tool arrangement having a perforating tool for forming an opening within the casing and a perforating tool sensor...  
WO/2017/144878A2
A colliding tool for severing a target in a wellbore as described. The tool comprises a housing having a first chamber, the first chamber containing an explosive charge; and an at least one detonator connected to the explosive charge, th...  
WO/2017/144878A3
A colliding tool for severing a target in a wellbore as described. The tool comprises a housing having a first chamber, the first chamber containing an explosive charge; and an at least one detonator connected to the explosive charge, th...  
WO/2017/144712A1
The present invention relates to a device and a method for the slotting of casings. The device comprises a slotting tool and is provided for the longitudinal slotting of casings in order to subsequently mill the previously slotted areas ...  
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/2017/135823A2
The invention relates to a rig for removal of tubing from a well, e.g. a hydrocarbon well, the rig having a working floor, a tower structure provided with a tripping operation elevator, a slip device, and a tubulars connection makeup and...  
WO/2017/134460A1
A reaming assembly (10) having an inner mandrel (12) including spiral lobes disposed on an outer surface thereof. The inner mandrel (12) is hollow and is sized large enough to freely pass a standard drill bit therethrough. The reaming as...  
WO/2017/135823A3
The invention relates to a rig for removal of tubing from a well, e.g. a hydrocarbon well, the rig having a working floor, a tower structure provided with a tripping operation elevator, a slip device, and a tubulars connection makeup and...  
WO/2017/131659A1
A system and method of controlling a dynamic time-pressure profile associated with a perforation event that includes extending a perforation assembly within a casing string; firing a perforation gun of the perforation assembly; measuring...  
WO/2017/125745A1
A tool for manipulating a tubular. The tool comprising a plurality of tool sections arranged in a stack, each tool section comprising a propellant source having an upper surface and lower surface, the upper and lower surfaces being separ...  
WO/2017/114149A1
A mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology. The device comprises: an anchor (1) having a lower end connected to an upper end of an insertion connection tube (12) via a cou...  
WO/2017/100417A1
A casing segmentation device and system, and a method for selectively providing a fluid flow passage through a casing segmentation device disposed within a well casing segment is provided. The casing segmentation device includes a body a...  
WO/2017/099607A1
The invention relates to a mobile cutting tool (100) for cutting a subsea tubular structure (810). The mobile cutting tool (100) comprises: i) a tool body (110) configured for receiving the subsea tubular structure (810) in an enclosure ...  
WO/2017/097663A1
The invention relates to an ignitor (1) and a system comprising an ignitor (1), as well as a method of electrical ignition of an exothermic mixture, the ignitor (1) comprising: - a housing (2); - a compartment (3) provided within the hou...  
WO/2017/097832A1
The present invention relates to a downhole wireline machining tool string for increasing an inner diameter of a well tubular metal structure in a well. The downhole wireline machining tool string has a longitudinal axis (4) and comprise...  
WO/2017/095410A1
Example apparatus, methods, and systems described for cutting tubulars in a downhole environment. In an example apparatus, energetic cutters are housed within a carrier. In some embodiments, the carrier is a cylindrical, tubular member. ...  
WO/2017/091142A1
Embodiments of the invention provide an apparatus, system and method for recovering and/or installing conductor casing. The apparatus or frame comprises: a base; and a mast having a bottom end pivotally mounted to the base and hydraulica...  
WO/2017/088052A2  
WO/2017/087102A1
A watermelon mill has a cutting structure mounted on a removable sleeve. The mandrel can be in two pieces threaded together to trap a ring or lug extending internally from the sleeve. Alternatively the sleeve can serve as a coupling hold...  
WO/2017/087111A1
A mill for milling a casing in a wellbore is disclosed that in one non-limiting embodiment includes a plurality of radially extendable cutting members on a body, an activation device that extends the cutting members radially outward from...  
WO/2017/084226A1
A cable-type electrohydraulic control pipe cutting tool comprises an anchoring module and a cutting module. The anchoring module is disposed on the rear portion, and the cutting module is disposed on the front portion. The anchoring modu...  
WO/2017/081494A1
A squeeze packer (1) assembly incorporates a built-in setting tool which removes the need for a separate setting tool. The packer comprises a body comprising a mandrel (9), a shuttle sleeve (7), and a stinger (2) assembly which is lowere...  
WO/2017/079092A1
A rotary milling tool for milling wellbore casing, casing couplings, or other tubing in a wellbore includes a tool body and a plurality of cutting assemblies coupled to the tool body. At least one cutting assembly includes a supporting s...  
WO/2017/079149A1
A gripping tool having a mandrel (50) reciprocatable within a slide member (20), the mandrel having a top connector (12) for connecting to a tubular string and a bottom connector (82) for connecting to acutting tool, the slide member hav...  
WO/2017/079186A1
A downhole rotary tool for comminuting tubing in a borehole comprises a tool body and a plurality of cutting assemblies projecting from or extensible from the tool body and distributed azimuthally around a longitudinal axis of the tool b...  
WO/2017/079396A1
Apparatus and methods for spatially orienting a subterranean pressure pulse to a hydrocarbon-bearing formation are provided. The apparatus includes an injection body with a fixed shape, where the injection body is operable to hold an exo...  
WO/2017/072535A1
There is described systems and methods for use decommissioning a well. In some cases, there is described a tubing drill having a drill section, a drill head and a drive unit. The drill head may be provided at a first end of the drill sec...  
WO/2017/062396A1
A shock mitigation device (100) comprising: a first end (130), a second end (140), and an inner tubular (150), wherein the inner tubular defines an internal cavity (110). In certain embodiments the present disclosure relates to shock mit...  
WO/2017/058582A1
A cutting insert for milling wellbore casing in a downhole environment includes a body having a cutting face and a chip-breaking face. The cutting face and chip-breaking face are oriented at a face angle relative to each other, the face ...  
WO/2017/053151A1
An apparatus for cutting and/or milling of tubulars in a wellbore, especially using coiled tubing. An elongated main body has a longitudinal bore, with a piston slidably positioned in the bore. The piston is connected to one or more oper...  

Matches 1 - 50 out of 1,197