A fishing tool used for fishing a metal object from a subterranean well has a housing. The housing is an elongated member having an internal bore. A first electromagnetic assembly is located within the internal bore of the housing and a second electromagnetic assembly is located at an outer diameter surface of the housing. The second electromagnetic assembly moves between a contracted position and an extended position. The second electromagnetic assembly extends outward from the housing. The first electromagnetic assembly generates a first magnetic force with an adjustable magnitude. The second electromagnetic assembly generates a second magnetic force with an adjustable magnitude. The first magnetic force and the second magnetic force have the same magnetic polarity.

A fishing tool (1) configured to retrieve a fish (100) from a wellbore, having a fish engagement arrangement (3) with fish engagement means (5) configured to lock the fishing tool to the fish inside a well. The fishing tool (1) has an electrically actuated fish disengagement arrangement (4), which is configured to unlock the fishing tool from the fish, wherein the fish disengagement arrangement (4) comprises an electric actuator (13). The fish disengagement arrangement (4) comprises a direct mechanical force link (6) between the electric actuator (13) and the fish engagement means (5), wherein the direct mechanical force link is configured to connect a mechanical force from the electric actuator (13) to the fish engagement means (5).

A fishing tool (1) configured to retrieve a fish (100) from a wellbore, having a fish engagement arrangement (3) with fish engagement means (5) configured to lock the fishing tool to the fish inside a well. The fishing tool (1) has an electrically actuated fish disengagement arrangement (4), which is configured to unlock the fishing tool from the fish, wherein the fish disengagement arrangement (4) comprises an electric actuator (13). The fish disengagement arrangement (4) comprises a direct mechanical force link (6) between the electric actuator (13) and the fish engagement means (5), wherein the direct mechanical force link is configured to connect a mechanical force from the electric actuator (13) to the fish engagement means (5).

A central shaft defines a first interior flow path. The central shaft disposed at least partially within a washover pipe. A lead tapered mill is positioned at a downhole end of the central shaft to center the downhole-type milling tool within a tubular. The lead tapered mill defines a second central flow path in line with the first interior flow path. Milling blades extend between the central shaft and the washover pipe. The milling blades are arranged to allow fluid flow around the milling blades. Each of the milling blades includes a tungsten-carbide hardened face and a soft steel body configured to support a load of the downhole-type milling tool during milling operations. A junk basket is positioned within the washover pipe uphole of the milling blades to receive and retain cuttings formed by the milling blades.

A system including a tool drill string having a downhole device. The system includes at least one external contact configured to be electrically coupled to the downhole device to communicate with the downhole device, one or more insulators that electrically insulate the at least one external contact from other parts of the system, and one or more seals situated between the one or more insulators and the at least one external contact to pressure seal the system from external fluids.

An overshot assembly for operative coupling to a wireline and a head assembly within a drilling system. The overshot assembly has a proximal body portion, a distal body portion, and a spindle received within the distal body portion. The distal body portion is moveable axially relative to the spindle to effect movement of a latching assembly about and between a deployed position in which the latching assembly extends radially outwardly from the distal body portion and a retracted position in which the latching assembly is received within the distal body portion.

An overshot assembly for operative coupling to a wireline and a head assembly within a drilling system. The overshot assembly has a proximal body portion, a distal body portion, and a spindle received within the distal body portion. The distal body portion is moveable axially relative to the spindle to effect movement of a latching assembly about and between a deployed position in which the latching assembly extends radially outwardly from the distal body portion and a retracted position in which the latching assembly is received within the distal body portion.

A core barrel head assembly including an upper body comprising a central passage. A pair of latches is arranged in the central passage. Each latch pivots about a pivot point at a first end. Each latch includes a latch release at a second end and an outer tube surface engaging surface between the first end and the second end. A retracting case includes a first end configured to engage at least the latch release of the latches. The outer tube surface engaging surface of each latch extends through a latch slot in an outer wall of the upper body and such that the latches rotate about the pivot point. The latches are movable between an extended position and retracted position by the retracting case with a mechanical advantage.

A core barrel head assembly including an upper body comprising a central passage. A pair of latches is arranged in the central passage. Each latch pivots about a pivot point at a first end. Each latch includes a latch release at a second end and an outer tube surface engaging surface between the first end and the second end. A retracting case includes a first end configured to engage at least the latch release of the latches. The outer tube surface engaging surface of each latch extends through a latch slot in an outer wall of the upper body and such that the latches rotate about the pivot point. The latches are movable between an extended position and retracted position by the retracting case with a mechanical advantage.

The present invention relates to a re-connecting device (1) for connecting and sealing against a damaged existing/remaining tubing (5) in a well bore, a casing string (2) or a pipe, the tubing (5) having smaller diameter than the casing string (2), and for repairing of the tubing (5), comprising an outer body (3) and at least one sealing element (18) arranged therein, the outer body (3) is arranged to enable the entrance of, and surrounding, the end part of the tubing (5) in the well bore, casing string (2) or pipe, and a sealing assembly (8) is arranged in the outer body (3), of the re-connecting device (1), for sealing it against the tubing (5). The invention is achieved by that an internal and axially movable assembly (6) is arranged inside the outer body (3) and comprising at least one of an anchoring assembly (7), the sealing assembly (8) and/or a releaseable locking assembly (9), where the movable assembly (6) and at least one of its anchoring assembly (7), sealing assembly (8) and/or releaseable locking assembly (9) is/are arranged to be activated by applying an axial mechanical/physical stroke to the top of the moveable assembly (6).