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).

A launching system for an autonomous unit (RAU) carrying a logging tool for oil and gas well logging robotic, said system comprising a main body provided with first and second control valves and a draining valve, sensors and a end cap electrically connected to a control room for transmission of the data collected by the logging tool carried by the RAU, said End Cap collecting data and charging the electrical battery of the robotic autonomous unit (RAU) carrying said logging tool to be launched by said main body and performing a schedule of logging tasks in the well; and a connection for a wellhead. The method for installation and uninstallation of the autonomous unit in the said system as well as a rescue system for the said robotic autonomous unit in case of hindered motion of the RAU for any reason are also described.

A drill rig having a longitudinal drilling axis, a front portion, and a rear portion can comprise a feedframe aligned with the longitudinal drilling axis, a first head assembly coupled to the feedframe and configured to rotate a drill string, and a rod holder proximate the front portion of the drill rig. A second head assembly can be movable on the feedframe along the longitudinal axis and can include a powered water swivel assembly comprising a spindle having an interior bore a drill rod connector at a first end of the spindle, a motor that is configured to rotate the spindle, a clutch configured to disengage the motor from the spindle, a gearbox that couples the motor to the spindle, and a water swivel that is configured to provide drilling fluid to the interior bore of the spindle.

A drill rig having a longitudinal drilling axis, a front portion, and a rear portion can comprise a feedframe aligned with the longitudinal drilling axis, a first head assembly coupled to the feedframe and configured to rotate a drill string, and a rod holder proximate the front portion of the drill rig. A second head assembly can be movable on the feedframe along the longitudinal axis and can include a powered water swivel assembly comprising a spindle having an interior bore a drill rod connector at a first end of the spindle, a motor that is configured to rotate the spindle, a clutch configured to disengage the motor from the spindle, a gearbox that couples the motor to the spindle, and a water swivel that is configured to provide drilling fluid to the interior bore of the spindle.

A tool has an elongated body having an outer surface, a first recess formed at a first axial position along the outer surface, and a second recess formed at a second axial position along the outer surface. The tool also includes a gripping element that has a plurality of collets at a gripping portion of the gripping element and a retention end. A retention mechanism axially retains the retention end of the gripping element within an axial length along the body to allow the plurality of collets to overlap with the first axial position and the second axial position of the body.

A tool has an elongated body having an outer surface, a first recess formed at a first axial position along the outer surface, and a second recess formed at a second axial position along the outer surface. The tool also includes a gripping element that has a plurality of collets at a gripping portion of the gripping element and a retention end. A retention mechanism axially retains the retention end of the gripping element within an axial length along the body to allow the plurality of collets to overlap with the first axial position and the second axial position of the body.

The present invention relates to a retrieval system for retrieving a well component, such as a plug, from a well tubular metal structure having a restriction and a top, said retrieval system comprising a tool string having a longitudinal extension and comprising a connection tool configured to connect with the well component, a force generator having a first part and a second part which is connectable with the connection tool and movable in relation to the first part for providing the axial force in the longitudinal extension, an anchoring section having at least one projectable element for anchoring the tool string, wherein the retrieval system further comprises a safety unit surrounding the tool string and having at least one wall and at least one abutment face configured to abut the restriction, said at least one projectable element abutting. Furthermore, the present invention relates to a downhole system and to a downhole well component retrieval method.

The present invention relates to a retrieval system for retrieving a well component, such as a plug, from a well tubular metal structure having a restriction and a top, said retrieval system comprising a tool string having a longitudinal extension and comprising a connection tool configured to connect with the well component, a force generator having a first part and a second part which is connectable with the connection tool and movable in relation to the first part for providing the axial force in the longitudinal extension, an anchoring section having at least one projectable element for anchoring the tool string, wherein the retrieval system further comprises a safety unit surrounding the tool string and having at least one wall and at least one abutment face configured to abut the restriction, said at least one projectable element abutting. Furthermore, the present invention relates to a downhole system and to a downhole well component retrieval method.

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.