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WO/2018/074934A1 |
Expansion tool (1) for expanding a tubing (91, 93), the expansion tool (1) comprises: - a rear portion (10); - an opposite leading end (19); - an expansion piston (4) within the expansion tool (1), the expansion piston (4) com- prising a...
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WO/2018/075737A1 |
In general, a conductor removal system (1) comprises a conductor sectioning tower which can be used to automate lifting and landing of various conductor sections. In most embodiments, the conductor sectioning tower can selectively and co...
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WO/2018/067557A1 |
One example of a wellbore control tool and a method of use is described. A leak is detected in a cased wellbore (102) comprising a multiple telescoping casing sections (104). A fluid flows in an uphole direction through the cased wellbor...
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WO/2018/064171A1 |
Methods of plugging a hydrocarbon well by a through-tubing technique wherein the tubing is left in place, and only very short (< 5 m) sections are cut, milled, perforated, ruptured and expanded, or combinations thereof. A blocking device...
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WO/2018/063003A2 |
The present invention relates to a downhole tool (23), for removing sections of metal tubing, comprising: at least one conductive element (1) being arranged to corrode a section of metal tubing using an electrolytic process, said conduct...
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WO/2018/063822A1 |
A composition for a plug for wellbores undergoing plugging and abandonment operations is described. Methods of setting the plug are also described.
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WO/2018/060117A1 |
An inner surface of an underground wellbore or wellbore tubular is cladded by an elastic sleeve (1), which is placed by: - lowering the elastic sleeve (1) into the wellbore which sleeve is releasably connected to a stretching device (4) ...
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WO/2018/063829A1 |
The device comprises a generally cylindrical sleeve having an open top and a closed bottom; a heater located inside the sleeve, the heater comprising a thermite mixture; an ignition mechanism that ignites the thermite mixture upon actuat...
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WO/2018/056836A2 |
A wellbore control device comprising a housing (1) defining a throughbore (2) for receiving a tubular, a first gate (4) having a first hole (6) and a second gate (3) having a second hole (5), piston rods (12a, 12b) operably connected to ...
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WO/2018/052442A1 |
A casing exit joint with guiding profiles and methods for use are provided. In one embodiment, a casing exit joint comprises: a substantially tubular casing joint comprising an inner surface and an outer surface, wherein at least a circu...
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WO/2018/048311A1 |
A hole forming tool(1) with a longitudinal axis (Y-Y) is configured for operation inside an inner casing (5). The tool comprises a plurality of drill bits(9), connected by transmission means (7; 7', 11) to at least one motor (6; 6'). The...
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WO/2018/046907A1 |
A downhole cutting tool and method of operating the cutting tool. The cutting tool (10) has first and second flow pathways through the tool body (12) and a switching mechanism operated by axial force via weight-set or drop ball to contro...
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WO/2018/023184A1 |
The invention relates to a method for producing floats (1) by injection-moulding of two three-dimensional bodies (2 and 3) with an edge (4), forming a non-watertight capsule (C), on which a plastic envelope is also injection-moulded, the...
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WO/2018/016996A1 |
The invention relates to methods of flushing oil and gas condensate wells using liquid and gas. The technical result is the increased productivity of wells. The method comprises installing, in a well, a high-strength tubing string, an an...
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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...
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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 ...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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. ...
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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...
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WO/2017/088052A2 |
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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...
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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...
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