A self-propelled, remotely-controlled equipment deployment vehicle is configured to deliver equipment to a desired location within the horizontal portion of a deviated wellbore. The deployment vehicle includes a cargo frame, an electric motor and an active mobility assembly. The active mobility assembly is connected to the cargo frame and powered by the electric motor. The cargo frame can be configured to transport, offload and accurately position the selected cargo. Alternatively, the equipment deployment vehicle can be configured with a passive mobility assembly that allows the equipment deployment vehicle to be pushed or pulled along the horizontal section of the wellbore without power.

A self-propelled, remotely-controlled equipment deployment vehicle is configured to deliver equipment to a desired location within the horizontal portion of a deviated wellbore. The deployment vehicle includes a cargo frame, an electric motor and an active mobility assembly. The active mobility assembly is connected to the cargo frame and powered by the electric motor. The cargo frame can be configured to transport, offload and accurately position the selected cargo. Alternatively, the equipment deployment vehicle can be configured with a passive mobility assembly that allows the equipment deployment vehicle to be pushed or pulled along the horizontal section of the wellbore without power.

This invention relates to a junk catcher (2, 2′) releasably connected to a retrievable bridge plug (4, 4′) connectable to a setting tool (6) for joint deployment of bridge plug (4, 4′) and junk catcher (2, 2′) in a borehole (9) or a tubular in the borehole (9). Setting tool (6) extends through a fishing neck (12), a catcher tube (14), a flanged section (16), a valve chamber (18), a closable opening (20) and a portion of a setting sleeve (22, 22′) of junk catcher (2, 2′). Valve chamber (18) comprises a valve (50) arranged to close closable opening (20) after retrieval of setting tool (6) from junk catcher (2, 2′). The junk catcher (2, 2′) is connected to bridge plug (4, 4′) by at least one shear bolt (27, 38). Bridge plug (4,4′) comprises a plug fishing neck (32, 32′) facing junk catcher (2, 2′), and bridge plug (4, 4′) comprises an equalizing channel (71) in a mandrel (7). The equalizing channel (71) extends from a bull nose (41) of bridge plug (4, 4′), and where junk catcher (2, 2′) is provided with a closing sleeve (26, 26′), closing sleeve (26, 26′) is connected to bridge plug (4, 4′) by at least one shear bolt (38, 38′), and closing sleeve (26, 26′) seals at least one equalizing port (73) in mandrel (7) when bridge plug (4, 4′) is set. A method for operating bridge plug (4, 4′) and junk catcher (2, 2′) assembly is also described.

This invention relates to a junk catcher (2, 2′) releasably connected to a retrievable bridge plug (4, 4′) connectable to a setting tool (6) for joint deployment of bridge plug (4, 4′) and junk catcher (2, 2′) in a borehole (9) or a tubular in the borehole (9). Setting tool (6) extends through a fishing neck (12), a catcher tube (14), a flanged section (16), a valve chamber (18), a closable opening (20) and a portion of a setting sleeve (22, 22′) of junk catcher (2, 2′). Valve chamber (18) comprises a valve (50) arranged to close closable opening (20) after retrieval of setting tool (6) from junk catcher (2, 2′). The junk catcher (2, 2′) is connected to bridge plug (4, 4′) by at least one shear bolt (27, 38). Bridge plug (4,4′) comprises a plug fishing neck (32, 32′) facing junk catcher (2, 2′), and bridge plug (4, 4′) comprises an equalizing channel (71) in a mandrel (7). The equalizing channel (71) extends from a bull nose (41) of bridge plug (4, 4′), and where junk catcher (2, 2′) is provided with a closing sleeve (26, 26′), closing sleeve (26, 26′) is connected to bridge plug (4, 4′) by at least one shear bolt (38, 38′), and closing sleeve (26, 26′) seals at least one equalizing port (73) in mandrel (7) when bridge plug (4, 4′) is set. A method for operating bridge plug (4, 4′) and junk catcher (2, 2′) assembly is also described.

A filter for trapping solids and methods for using the same. The filter can include at least two support members that can be oriented in a first direction, and at least two support members that can be oriented in a second direction. The second direction can be generally orthogonal to the first direction. A housing can encase and surround the support members, and can thereby form an opening therethrough. The housing can include one or more apertures providing a flow path from within the housing to outside the housing. A first end can permit fluid flow into the housing, and a second end can at least partially restrict fluid flow therethrough.

Methods of procuring a core sample may involve engaging an earth formation with a cutting structure of a coring bit. A core sample may be received within a receptacle connected to the coring bit, the receptacle being lined with a sponge material. A space of about 1 mm or less may be maintained between the core sample and the sponge material. Coring tools may include a coring bit comprising an inner gage and an outer gage and a sponge material positioned to at least partially surround a core sample cut by the coring bit. A radial distance between an inner surface of the sponge material and the inner gage of the coring bit may be about 1 mm or less. A distance between a center of curvature of the inner gage and a center of curvature of the outer gage may be about 0.3 mm or less.

A survey tool for attachment to a drill string for inserting the survey tool into a borehole, the survey tool comprising a housing having a proximal end adapted for attachment to the drill string and a bore traversing the housing adapted to receive fluid from the drill string, and a piston adapted to be received within the bore, the piston being adapted to be selectively displaced between at least a first condition and a second condition, wherein in the first condition the fluid exists the housing at a first location and in the second condition the fluid exists the housing at a second location.

A survey tool for attachment to a drill string for inserting the survey tool into a borehole, the survey tool comprising a housing having a proximal end adapted for attachment to the drill string and a bore traversing the housing adapted to receive fluid from the drill string, and a piston adapted to be received within the bore, the piston being adapted to be selectively displaced between at least a first condition and a second condition, wherein in the first condition the fluid exists the housing at a first location and in the second condition the fluid exists the housing at a second location.

Payload container and system for delivering a payload to a wellbore, the payload container includes a blister container having a cavity formed therein and an edge about the perimeter of the cavity, one or more payload substances contained within the cavity, a lidding material to cover the cavity, and optionally, an adhesive to bond the lidding material to the edge of the cavity, so that the one or more payload substances can be released in response to an external stimulus. The wellbore payload delivery system includes a plurality of payload containers and a pump system for injecting the one or more payload containers into a wellbore, the pump system has a pump and a length of tubing coupled with the pump and extending to a zone of a subterranean formation adjacent to the wellbore.

Systems and methods for collecting debris in a subterranean well include a wellbore cleanout tool having a tool housing with a tool bore. The wellbore cleanout tool further includes a power source, a wire in electrical communication with the power source, and a core member located within the tool bore. The wire is wound around the core member with a first end and a second end of the wire in electrical connection with a positive terminal and a negative terminal of the power source, respectively. A plurality of magnetic bars are spaced around the core member. A sleeve member is moveable between an uphole position where the sleeve member circumscribes the plurality of magnetic bars, and a downhole position where the sleeve member is located downhole of a portion of the plurality of magnetic bars and can be a collection basket. The wellbore cleanout tool further has a permanent magnet.