A downhole cleaning tool (120) for use in a drilled bore, such as an oil and gas well (100). The tool (120) comprises a tubular body (130) defining an internal bore (136) and at least one radially extending blade (148) defining a pocket (152) having sides and a base. A cam-activated radially extendable cleaning element (154) is mounted in the pocket (152) and is movable between a retracted position and an extended position. Multiple pockets (152) and cleaning elements (154) may be provided. The activating cam may be in the form of a pipe, which may be a single unitary part or may be in multiple parts. The parts of the multiple-part pipe may be axially spaced and may activate the cleaning elements in a staggered or sequential manner.
A downhole cleaning tool (120) for use in a drilled bore, such as an oil and gas well (100). The tool (120) comprises a tubular body (130) defining an internal bore (136) and at least one radially extending blade (148) defining a pocket (152) having sides and a base. A cam-activated radially extendable cleaning element (154) is mounted in the pocket (152) and is movable between a retracted position and an extended position. Multiple pockets (152) and cleaning elements (154) may be provided. The activating cam may be in the form of a pipe, which may be a single unitary part or may be in multiple parts. The parts of the multiple-part pipe may be axially spaced and may activate the cleaning elements in a staggered or sequential manner.
A downhole cleaning tool (40) adapted for location in bore-lining tubing (22). The tool (40) comprises a tubular body (42) defining an internal bore (48), at least one radially extending cleaning blade (92), and an external axially extending bypass flute (96, 98, 100, 102). The body further defines a fluid flow path from the internal bore (48) to at least one elongated jetting slot (94) extending along an outer surface of the blade (92).
Machines and machine tools; machines and machine tools for
use in drilling subterranean and subsea wells; machines and
machine tools for use in subterranean and subsea well
construction and completion; machines and machine tools for
use in decommissioning of subterranean and subsea wells;
machines and machine tools for use in plugging and
abandonment of subterranean and subsea wells; downhole
tools; downhole fluid bypass tools and equipment; downhole
tools in the nature of circulation subs; wellbore clean up
tools; downhole tools and equipment for cleaning hydrocarbon
wells; parts and fittings for the aforesaid goods.
A downhole cutting tool (13) for perforating a tubular (14) in an oil or gas well comprises a body (4); radially moveable cutting members (3) mounted on the body (4); a helical profiled member (1) rotatable relative to the body (4); and activation members (2) axially movable relative to the body (4). Rotation of the helical profiled member (1) generates axial movement of the activation members (2), and the activation members (2) configured to actuate the cutting members (3) from a retracted configuration to an extended configuration.
Machines and machine tools for the cutting and forming of materials; Machines and machine tools for use in drilling subterranean and subsea wells in the nature of valve assemblies for controlling flow of downhole fluids; Machines and machine tools for use in subterranean and subsea well construction and completion in the nature of valve assemblies for controlling flow of downhole fluids; Machines and machine tools for use in decommissioning of subterranean and subsea wells in the nature of valve assemblies for controlling flow of downhole fluids; Machines and machine tools for use in plugging and abandonment of subterranean and subsea wells in the nature of valve assemblies for controlling flow of downhole fluids; Machine tools for use in drilling, installation, construction, completion, decommissioning, plugging and abandonment, and/or exploration in the oil and gas industry, namely, stroke devices for axial machine movement in subsea wells; Downhole tools, namely in the nature of actuable valve assemblies for controlling flow of downhole fluids; Downhole fluid bypass tools and equipment, namely bypass valves being parts of machines; Pressure-operated downhole tools in the nature of circulation subs; Machines and machine tools in the nature of downhole fluid circulation subs; Machine tools for use in drilling, installation, construction, completion, decommissioning, plugging and abandonment, and/or exploration in the oil and gas industry, namely, wellbore clean up tools; Downhole tools and equipment for cleaning hydrocarbon wells in the nature of downhole valve assemblies for controlling flow of downhole fluids; Parts and fittings for the aforesaid goods.
A downhole tool comprises a hollow body having a wall and a port in the wall, and a closing sleeve movable relative to the body to open and close the port. A seal is provided between the body and the sleeve and is configured to hold differential pressure. An isolation member may be deployed in the tool to isolate the seal from differential pressure and close the port. The isolation member may be deployed following initiation of a tool activation process, a successful outcome of the process being translating the closing sleeve and closing the port, and positioning the seal to hold a differential pressure. If it is detected that the outcome has not been achieved, the isolation member is deployed to isolate the seal from differential pressure and close the port.
E21B 47/09 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
A downhole cleaning tool (120) for use in a drilled bore, such as an oil and gas well (100). The tool (120) comprises a tubular body (130) defining an internal bore (136) and at least one radially extending blade (148) defining a pocket (152) having sides and a base. A cam-activated radially extendable cleaning element (154) is mounted in the pocket (152) and is movable between a retracted position and an extended position. Multiple pockets (152) and cleaning elements (154) may be provided. The activating cam may be in the form of a pipe, which may be a single unitary part or may be in multiple parts. The parts of the multiple-part pipe may be axially spaced and may activate the cleaning elements in a staggered or sequential manner.
A disconnect sub is connected at one end to a pipe for deployment into a well, where the disconnect sub is then connected to a downhole sealing device such as a plug. The disconnect sub comprises a disconnection point that has a lower tensile break value than the rest of the plug, and has a predetermined tensile break value such that the disconnection point will fail when a threshold value of axial tensile load is applied to the disconnect sub. This offers two methods of disconnection of the pipe from the plug after the plug has set—firstly, rotation of the pipe, or if rotation is not possible, overpull of the pipe in excess of the threshold will cause failure of the disconnection point and separation of the pipe from the plug.
Downhole apparatus (30) comprises: a tubular body (42) for incorporation in a tubing string (24); a float valve (30) mounted in the body (42) and operable to prevent flow up though the body; and a float valve retainer (38) maintaining the float valve (30) in an inoperable configuration and permitting flow up through the body (42), the retainer (38) comprising a flow restriction (80) to permit creation of a pressure differential across the restriction (80) and reconfiguring of the retainer (38) to permit operation of the float valve (30). The flow restriction (80) has a retracted configuration and an extended configuration to permit creation of the pressure differential, the flow restriction (80) maintaining the retracted configuration until exposed to a selected absolute pressure.
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 lowered into the wellbore on the end of tubing (102). The shuttle sleeve is housed within the body and incorporates a latch device in the form of a collet comprising a plurality of resilient fingers (14) to releasably connect to the stinger. A ball seat (15) allows hydraulic setting of slips (3). Additional slips (4) can be set by applying tension on the tubing (FIG. 4). Once released, the stinger can open and close the shuttle sleeve by reciprocating in and out of the packer as many times as required during cementing operations.
E21B 33/129 - PackersPlugs with mechanical slips for hooking into the casing
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 33/128 - PackersPlugs with a member expanded radially by axial pressure
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
A downhole tool comprises a hollow body having a wall and a port in the wall, and a closing sleeve movable relative to the body to open and close the port. A seal is provided between the body and the sleeve and is configured to hold differential pressure. An isolation member may be deployed in the tool to isolate the seal from differential pressure and close the port. The isolation member may be deployed following initiation of a tool activation process, a successful outcome of the process being translating the closing sleeve and closing the port, and positioning the seal to hold a differential pressure. If it is detected that the outcome has not been achieved, the isolation member is deployed to isolate the seal from differential pressure and close the port.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 34/08 - Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
(57) Abstract: Downhole apparatus (30) comprises: a tubular body (42) for incorporation in a tubing string (24); a float valve (30) mounted in the body (42) and operable to prevent flow up though the body; and a float valve retainer (38) maintaining the float valve (30) in an inoperable configuration and per¬ mitting flow up through the body (42), the retainer (38) comprising a flow re¬ striction (80) to permit creation of a pressure differential across the restriction (80) and reconfiguring of the retainer (38) to permit operation of the float valve (30). The flow restriction (80) has a retracted configuration and an extended configuration to permit creation of the pressure differential, the flow restriction (80) maintaining the retracted configuration until exposed to a selected absolute pressure.
A downhole tool comprises a hollow body having a wall and a port in the wall, and a closing sleeve movable relative to the body to open and close the port. A seal is provided between the body and the sleeve and is configured to hold differential pressure. An isolation member may be deployed in the tool to isolate the seal from differential pressure and close the port. The isolation member may be deployed following initiation of a tool activation process, a successful outcome of the process being translating the closing sleeve and closing the port, and positioning the seal to hold a differential pressure. If it is detected that the outcome has not been achieved, the isolation member is deployed to isolate the seal from differential pressure and close the port.
E21B 34/08 - Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A downhole tool comprises a body having a fluid inlet and a fluid outlet and configured to accelerate fluid flowing along a fluid flow path from the inlet to the outlet. The fluid outlet is configured to provide a radially directed and substantially circumferentially continuous stream of fluid. The stream of fluid may be used to clean or cut downhole tubing, such as casing.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
E21B 37/00 - Methods or apparatus for cleaning boreholes or wells
E21B 43/114 - Perforators using direct fluid action, e.g. abrasive jets
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
E21B 33/138 - Plastering the borehole wallInjecting into the formation
E21B 41/00 - Equipment or details not covered by groups
A method of severing a drill-string comprises reducing the load bearing cross-sectional area of the neck of a connection. The reduction in the area of the neck may be achieved using a precisely located flow-actuated cutter. The cutter may be pumped into the string to land on a seat above the connection. A bypass valve may be provided below the connection to facilitate fluid circulation.
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
E21B 33/138 - Plastering the borehole wallInjecting into the formation
E21B 37/00 - Methods or apparatus for cleaning boreholes or wells
E21B 41/00 - Equipment or details not covered by groups
E21B 43/114 - Perforators using direct fluid action, e.g. abrasive jets
An activating device is provided for location in downhole tubing. The device defines an activation profile which is initially maintained at a larger diameter than a tubing seat, such that the device may land on and be held up by the seat. The profile may be subsequently reconfigured to radially retract, allowing the device to pass through the seat.
A downhole tool comprises a hollow body having a wall and a port in the wall, and a closing sleeve movable relative to the body to open and close the port. A seal is provided between the body and the sleeve and is configured to hold differential pressure. An isolation member may be deployed in the tool to isolate the seal from differential pressure and close the port. The isolation member may be deployed following initiation of a tool activation process, a successful outcome of the process being translating the closing sleeve and closing the port, and positioning the seal to hold a differential pressure. If it is detected that the outcome has not been achieved, the isolation member is deployed to isolate the seal from differential pressure and close the port.
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
A deformable cleaning element is encased within soluble packaging to maintain deformation. The deformed cleaning element is launched into the bore of a drill pipe/conduit or tubular. Contact with fluids within the bore dissolves the soluble packaging allowing the cleaning element to expand to its original shape.
B08B 9/055 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
E21B 37/08 - Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, or gravel packs
B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
B65D 81/26 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, fluids, e.g. exuded by contentsApplications of corrosion inhibitors or desiccators
F16L 55/46 - Launching or retrieval of pigs or moles
20.
Support device for use in a wellbore and a method for deploying a barrier in a wellbore
A downhole support device for use in a wellbore is provided, where the device (200) is adapted to be run into the wellbore (202) through or on a workstring (204). The device (200) comprises an inflatable element (206) adapted to be selectively connectable to the workstring (204). The inflatable element (206) selectively applies a biasing force to an external structure such, for example, a wall (214) of the wellbore (202) when in an inflated state. The inflatable element (206) has an inlet (208) for receiving and being inflated by a flowing substance. The device (200) also comprises an inflation mechanism (210) and a disconnect mechanism (222) adapted to be selectively disconnectable from the workstring (204). A method of deploying a barrier in a wellbore which makes use of the support device is also provided.
Drill string check valve apparatus comprises a tubular body and a flapper valve mounted in the body with a flapper movable between an open position and a closed position. An axially extending valve retainer is also mounted in the body and is translatable from a running position to a drilling position. In the running position the valve retainer extends through the valve to maintain the flapper in the open position. In the drilling position the valve retainer permits the flapper to move to the closed position to prevent flow up through the body.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 47/18 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid
E21B 34/00 - Valve arrangements for boreholes or wells
Downhole apparatus comprises first and second tools for location in a tubing string. The first tool has a first seat of a first diameter and the second tool has a second seat of a second diameter larger than the first diameter. First and second activating devices are provided for use in activating the respective first and second tools. The first activating device includes a first activating profile having an extended diameter larger than the first diameter and smaller than the second diameter and a retracted diameter smaller than the first diameter. The second activating device includes a second activating profile having an extended diameter larger than the second diameter and a retracted diameter smaller than the first diameter.
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
E21B 23/00 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
E21B 34/00 - Valve arrangements for boreholes or wells
A drilling method comprising running a drill string (12) part way into a bore (11); then pumping fluid through the drill string; then running the drill string further into the bore; and then reconfiguring a check valve (20) located towards the distal end of the drill string from a running configuration, in which the valve permits flow both up and down the string, to a drilling configuration in which the valve permits flow down through the string but prevents flow up through the string.
The present invention relates to a downhole support device (100) for use in a wellbore and which is adapted to be run into the wellbore through an elongate member string (2) such as on a string of tubulars, a coiled tubing string or a slickline. The downhole support device comprises an inflatable element (102), which in use is adapted to be selectively connectable to the elongate member string and is further adapted to apply a biasing force in the direction of the wellbore walls. The inflatable element has an inlet (104) for receiving fluid and/or fluidized solids. The support device is further adapted to be selectively disconnectable from the elongate member string.
An activating device is provided for location in downhole tubing. The device defines an activation profile which is initially maintained at a larger diameter than a tubing seat, such that the device may land on and be held up by the seat. The profile may be subsequently re-configured to radially retract, allowing the device to pass through the seat.
A downhole bypass valve comprises a tubular body including a side port and a sleeve axially movably mounted in the body and normally biased to a closed position to close the side port. An activating device is configured to be pumped or dropped into the body to engage the sleeve and permit movement of the sleeve to an open position and open the side port. A latch has a part in the body and a part in the activating device, the parts of the latch configured to engage and retain the sleeve in the open position. The activating device is further operable to disengage from and translate through the sleeve and the parts of the latch are further operable to disengage and permit the sleeve to return to the closed position.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 23/00 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
In a drill string for oil wells and the like a method and apparatus for delivering fluids to the drilled hole employs a bypass port above fluid outlets in the distal end of the string. The port may be used to deliver fluid such as lost circulation material (LCM) to the drilled hole from the surface. A volume of the fluid may be locked in the string between the port and the fluid outlets such that fluid is prevented from passing from the hole into the string via the fluid outlets.
Apparatus (100) for use in top filling of tubulars comprising an inlet (200) for fluid communication with a top drive for providing top filling fluid, and an outlet (300) for fluid communication with a tubular. The apparatus (100) comprises a filter configuration (120), in fluid communication with the inlet (200) and the outlet (300) and configured to remove debris from a top filling fluid flow flowing from the inlet (200) to the outlet (300) during top filling of a tubular.
A method of top-filling a drill pipe string comprises injecting fluid into the upper end of the string. Apparatus for use in top-filling a drill pipe string comprises an injector adapted to co-operate with the upper end of a drill pipe string, whereby fluid may be pumped through the injector and into the string.
