Patent classifications
E21B23/08
PUMP DOWN INTERVENTION TOOL AND ASSEMBLY
A pump down intervention tool may be pumped downhole through a work string after an installation of the work string. The pump down intervention tool may include a downhole tool that includes but is not limited to an agitator tool, including but not limited to a fluidic pulsation device, or a check valve. The pump down intervention tool may be pumped downhole in the work string, for example but not limited to in a coiled tubing or jointed pipes. The pump down intervention tool may be landed at a desired location along a length of the work string. The pump down intervention tool can allow for the addition of a downhole tool after the work string's initial deployment, providing a desired functionality downhole at time after the initial deployment of the work string downhole.
ELECTRICALLY OPERATED CHEMICAL STICK LAUNCHER
A chemical stick launcher includes a stack of vertically mounted low voltage electrically operated valves providing spaces between the valves for chemical sticks. The valves are manipulated by a controller to drop sticks from the compartments between the valves after suitable time delays so the launcher can supply chemicals to a hydrocarbon well over a period of time. The stack is insulated to reduce the operating temperature of the launcher and thereby allow a wider variety of chemical compositions to be used. The low voltage electrically operated valves include a front panel providing a visual indicator of whether the valves are open or closed. The valves are mounted on the stack so the front panels face in the same direction so a standing person can see all the indicators from a single position.
Latch mechanism and system for downhole applications
A system and method for conveying a tool to a target sub within a tubular string having a number of subs. Each sub may include at least one ledge or shoulder in or on its interior surface that can be used as a latch stopper or stopper, for receiving and engagement with a latch. The subs may also have a latch deflector or deflector. In one embodiment, the latch deflector is a latch-deflection shoulder protruding into the internal diameter (ID) of the string for deflecting a latch, to be subsequently introduced, out of or into the latch-stopping shoulder. The distance between the latch stopper and the latch deflector, referred to as the “deflection radius,” may be used as an address that uniquely identifies each sub, and can vary from sub to sub.
Latch mechanism and system for downhole applications
A system and method for conveying a tool to a target sub within a tubular string having a number of subs. Each sub may include at least one ledge or shoulder in or on its interior surface that can be used as a latch stopper or stopper, for receiving and engagement with a latch. The subs may also have a latch deflector or deflector. In one embodiment, the latch deflector is a latch-deflection shoulder protruding into the internal diameter (ID) of the string for deflecting a latch, to be subsequently introduced, out of or into the latch-stopping shoulder. The distance between the latch stopper and the latch deflector, referred to as the “deflection radius,” may be used as an address that uniquely identifies each sub, and can vary from sub to sub.
Dissolvable Expendable Guns for Plug-And-Perf Applications
A wellbore system for perforating a subterranean formation including a dissolvable perforating gun that may be wirelessly operated to fire at a predetermined wellbore location and thereafter fragmented and dissolved with wellbore fluids. The perforating gun may take the form of a strip gun with an elongated rod or other charge holder carrying a plurality of exposed perforating charges thereon. The exposed shaped charges may each be equipped with an individual charge cover or filler material disposed over a liner that forms a jet when the shaped charge is detonated. A wiper to facilitate pumping the perforating gun through the wellbore and may include an initiator for detecting a signal or condition indicative of the perforating gun having reached a predetermined location to cause the perforating gun to fire.
Dissolvable Expendable Guns for Plug-And-Perf Applications
A wellbore system for perforating a subterranean formation including a dissolvable perforating gun that may be wirelessly operated to fire at a predetermined wellbore location and thereafter fragmented and dissolved with wellbore fluids. The perforating gun may take the form of a strip gun with an elongated rod or other charge holder carrying a plurality of exposed perforating charges thereon. The exposed shaped charges may each be equipped with an individual charge cover or filler material disposed over a liner that forms a jet when the shaped charge is detonated. A wiper to facilitate pumping the perforating gun through the wellbore and may include an initiator for detecting a signal or condition indicative of the perforating gun having reached a predetermined location to cause the perforating gun to fire.
MULTI-DIAMETER THRUST CUPS
Embodiments described herein provide a multi-diameter thrust device that includes one or more thrust cups. Each thrust cup of the one or more thrust cups includes a first axial end hub disposed at a first axial end of the thrust cup; a second axial end hub disposed at a second axial end of the thrust cup; and a plurality of bowsprings. Each bowspring of the plurality of bowsprings includes a first axial end portion coupled to the first axial end hub and a second axial end portion coupled to the second axial end hub. The plurality of bowsprings are disposed circumferentially about a central axis of the multi-diameter thrust device.
PUMP DOWN PIPE SEVERING TOOL
A pump down device is deployed at an anchor point in a pipe to perform a pipe severing operation. The pump down device includes: a cutting head positioned at one end of the pump down device that severs the pipe; one or more centralizers that are positioned adjacent to the cutting head and configured to provide friction for deployment of the pump down device at the anchor point and centralize the cutting head; a seal that is positioned near an end opposite to the one end of the pump down device; and an electronics housing that includes a plurality of electronic sensors. The pump down device releases an anchor mechanism upon reaching the anchor point as determined by the plurality of electronic sensors based on preprogrammed inputs. The seal prevents fluid from moving past the pump down device when in operation.
PERFORATING GUN
A perforating gun for use in oil and gas operations. The gun is carried to a desired area of a wellbore using only fluid pressure. The gun comprises a charge housing disposed within a removable sleeve. The charge housing comprises a plurality of shaped charges in communication with one or more sensors. The sensors are programmed to initiate the detonation sequence of the shaped charges upon measuring set parameters. Upon detonation, the gun fragments into a plurality of pieces that may be washed away from the detonation site.
Electric powered pump down
A method of operations in a subterranean formation, including driving a pump with an electrically powered motor to pressurize fluid, inserting a tool into a wellbore that intersects the formation, and directing the pressurized fluid into the wellbore above the tool to push the tool into the wellbore.