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Patent Searching and Data


Matches 1 - 50 out of 1,235

Document Document Title
WO/2018/169847A1
A method for creating access to annular spacing during P&A operations is described. Specifically, helical coils are cut into one or more casings before the plugging material is set. The plugging material is able to exit the helical coils...  
WO/2018/169633A1
A method of controllably disintegrating a downhole article comprises disposing the downhole article in a downhole environment, the downhole article containing a matrix material; a first chemical; and a second chemical physically isolated...  
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/2018/160319A1
A method of controllably disintegrating a downhole article comprises disposing a first article in a downhole environment, the first article being the downhole article to be disintegrated; disposing a second article in the downhole enviro...  
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/2018/142122A1
Method and apparatus for single-trip cementing and casing cutting for well abandonment and slot recovery. A casing cutter is described which has a central through bore including a wall to isolate the cutting assembly from cement being pa...  
WO/2018/144985A1
A tethering system includes an adapter configured to couple to an upper end of a subsea anchor, a tensioning system, and a flexible tension member having one end coupled to the tensioning system and the other end coupled to the adapter. ...  
WO/2018/142123A1
Method and apparatus for single-trip cementing and casing cutting for well abandonment and slot recovery. Using a tool string including a casing cutter and a stinger, where the casing cutter has a central through bore including a wall to...  
WO/2018/140871A1
A one trip bottom hole assembly allows setting and testing a plug and release from the plug. Cement can be pumped onto the plug, after the BHA is raised, to an extent to meet local regulatory requirements. The cutter spear combination ca...  
WO/2018/138479A1
Embodiments comprise a method of removing material at a well, involving progressively jetting heat along a helical path to heat a target material for removal. Embodiments of the method comprise material removal from a downhole well eleme...  
WO/2018/132353A1
An apparatus for use in a well includes a tubular mandrel (115) configured to connect to a downhole assembly. An outer hub is configured to attach to a wellhead (10) and has a bore therethrough. An inner housing (130) is disposed on the ...  
WO/2018/122548A1
A method to test or monitor the integrity of a cement barrier, comprising providing an assembly therebelow including: a perforating device;a control mechanism to control the perforating device, a pressure sensor, a wireless communication...  
WO/2018/115892A1
A tool for fracturing at least one tubular is described. The tool comprises a plurality of parallel columns of explosives and a detonation system configured to detonate the columns of explosives. The columns are arranged such that upon d...  
WO/2018/106347A1
A coupling system includes a lower marine riser package having a connector at a bottom end and at least one blowout preventer pressure control element coupled to a wellhead and having a connector at an upper end. Explosively frangible fa...  
WO/2018/101960A1
It may be required at a well site to create a lateral wellbore from a primary wellbore. A dissolvable whipstock assembly may be positioned within a primary wellbore to deflect a mill or drill bit to create a secondary wellbore. The disso...  
WO/2018/096312A1
A gate valve apparatus comprises a housing defining a flow path, a first valve seat located within the housing around a periphery of the flow path and comprising a first peripheral seal surface, and a gate valve member which is moveable ...  
WO/2018/089589A1
A method includes cutting a production tubing disposed in a wellbore to form a lower production tubing section and an upper production tubing section, displacing the upper production tubing section away from the lower production tubing s...  
WO/2018/085575A1
A bottom hole assembly (BHA) contains a motor and a section mill for milling in an uphole direction after blade extension with circulating fluid through the BHA. Below the section mill is sensing equipment to detect location of a bridge ...  
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/2018/080715A1
A milling and scraping tool for preparing a borehole to be plugged includes a tool body including a first end, a second end, and an intermediate portion extending therebetween and a milling system arranged between the first end and the s...  
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...  
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...  
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...  
WO/2018/063003A3
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...  
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...  
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...  
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.  
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) ...  
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...  
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 ...  
WO/2018/056836A3
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  

Matches 1 - 50 out of 1,235