Abstract: A wellbore tool and a tool section interconnection fluid coupling includes first and second coupling members arranged to be connected and disconnected relative each other. Both the first and second coupling members are arranged to be in a closed position preventing fluid passage through the fluid coupling, and in an open position allowing fluid passage through the fluid coupling. The first coupling member includes a first cylindrical housing, and a first valve element. The first valve element is movably arranged inside the first cylindrical housing. The cylindrical housing includes a valve seat. The valve element is arranged to push against the valve seat when the first and second coupling members are disconnected. The valve element includes a first support portion between a hollow portion and a seal groove.

Abstract: A well tractor drive section comprising—a drive section body (0) with main central axis (0x), with—first and second drive wheels (10A, 10B) on the outer ends of first and second wheel arms (12A, 12B); inner ends of said wheel arms (12A, 12B) arranged pivotally about first and second transverse axes (8Ax, 8Bx) in first and second transverse-axial wheel arm bearings (14A, 4B) for said wheel arms (12A, 12B) to rotate in a direction away from said main axis (0x) to engage said drive wheels (10A, 10B) with an inner wall of a well; —said first and second transverse-axes (8Ax, 8Bx) being mutually oppositely laterally displaced with a first separation (d1) from said main central axis (0x) in a common perpendicular plane (8P) relative to said main central axis (0x).

Abstract: A wellbore tool and a tool section interconnection fluid coupling includes first and second coupling members arranged to be connected and disconnected relative each other. Both the first and second coupling members are arranged to be in a closed position preventing fluid passage through the fluid coupling, and in an open position allowing fluid passage through the fluid coupling. The first coupling member includes a first cylindrical housing, and a first valve element. The first valve element is movably arranged inside the first cylindrical housing. The cylindrical housing includes a valve seat. The valve element is arranged to push against the valve seat when the first and second coupling members are disconnected. The valve element includes a first support portion between a hollow portion and a seal groove.

Abstract: A well tractor drive section comprising—a drive section body (0) with main central axis (0x), with—first and second drive wheels (10A, 10B) on the outer ends of first and second wheel arms (12A, 12B); inner ends of said wheel arms (12A, 12B) arranged pivotally about first and second transverse axes (8Ax, 8Bx) in first and second transverse-axial wheel arm bearings (14A, 4B) for said wheel arms (12A, 12B) to rotate in a direction away from said main axis (0x) to engage said drive wheels (10A, 10B) with an inner wall of a well; said first and second transverse-axes (8Ax, 8Bx) being mutually oppositely laterally displaced with a first separation (d1) from said main central axis (0x) in a common perpendicular plane (8P) relative to said main central axis (0x).

Abstract: A drum unit for an intervention string for a well includes a drum with a drum axis and with a radius, arranged in a structural frame and rotatable by a motor and a tension compensator. The tension compensator includes a guide arch displaceable in a direction generally along the intervention string, orthogonal to the drum axis, using a first force device connected to the structural frame for keeping the intervention string in tension. At least a first end of the guide arch is laterally displaceable in a direction generally orthogonal to the intervention string, parallel with the drum axis. The intervention string runs between the guide arch to or from the first end to the drum. The intervention string runs via a second, opposite end of the guide arch via a second, fixed guide at the structural frame, directly or indirectly to or from the well.

Abstract: A fibre composite rod fishing tool includes a ring base with an axis and provided with peripherally arranged, axially extending radially resilient arms with slips with a common axial bore being tapered-off towards a rod receiving aperture opposite of said ring base, said common axial bore provided with teeth of common radial cutting depth, said teeth's engaging edge having the tapering off of the common axial bore, so as for the outer set of teeth's engaging edge to be most blunt, and each consecutive set of teeth's engaging edge extending higher and being sharper inwards toward the common axis, as counted in the direction away from said rod receiving aperture.

Abstract: A petroleum well injection system is provided for an intervention cable with a well tool ran into or out of a well during a well operation. The system includes a blow out valve BOP connected to a well head at a well, a lock chamber at the BOP arranged to contain the well tool before and after the well operation, an injector for the intervention cable, with drive belts driven by an electric motor, and a sensor for measuring the injector force or the tension that the drive belts applies to the intervention cable, a guide arch at the injector, wherein the intervention cable runs taut over the guide arch to a first end of the closed bending restrictor channels, a guide arch load cell arranged to measure the backward tension between an intervention cable the first end of the bending restrictor channel, and wherein the other end of the bending restrictor channel is connected to a drum frame with a motor running a drum for the intervention cable.

Abstract: An apparatus for gripping a support member is described. The apparatus comprises a tubular clamp, the tubular clamp defining a throughbore adapted to receive a support member therethrough, a first apparatus member adapted to engage a first portion of an external surface of the tubular clamp, and a second apparatus member adapted to engage a second portion of the external surface of the tubular clamp. Relative movement of the first apparatus member with respect to the tubular damp in a first direction results in a deflection of a section of a first end of the tubular clamp into the clamp throughbore and relative movement of the second apparatus member in a second direction, opposite the first direction, with respect to the tubular clamp results in a deflection of a section of a second end of the tubular clamp into the clamp throughbore.

Abstract: An injector head for feeding a tool string support member downhole is described. The injector head includes a first gripping device and a second gripping device. The first and second gripping devices are adapted to grip a tool string support member passing through an injector head passageway. The injector head further includes an actuator movable between a first position and a second position wherein, movement of the actuator between the first and second positions moves at least a portion of both of the first and second gripping devices towards or away from a passageway longitudinal axis.

Abstract: A petroleum well injection system is provided for an intervention cable with a well tool ran into or out of a well during a well operation. The system includes a blow out valve BOP connected to a well head at a well, a lock chamber at the BOP arranged to contain the well tool before and after the well operation, an injector for the intervention cable, with drive belts driven by an electric motor, and a sensor for measuring the injector force or the tension that the drive belts applies to the intervention cable, a guide arch at the injector, wherein the intervention cable runs taut over the guide arch to a first end of the closed bending restrictor channels, a guide arch load cell arranged to measure the backward tension between an intervention cable the first end of the bending restrictor channel, and wherein the other end of the bending restrictor channel is connected to a drum frame with a motor running a drum for the intervention cable.

Abstract: A fibre composite rod fishing tool includes a ring base with an axis and provided with peripherally arranged, axially extending radially resilient arms with slips with a common axial bore being tapered-off towards a rod receiving aperture opposite of said ring base, said common axial bore provided with teeth of common radial cutting depth, said teeth's engaging edge having the tapering off of the common axial bore, so as for the outer set of teeth's engaging edge to be most blunt, and each consecutive set of teeth's engaging edge extending higher and being sharper inwards toward the common axis, as counted in the direction away from said rod receiving aperture.

Abstract: A conduit device for a petroleum well intervention string includes a first end connected to an intervention string drum unit with a drum and a second end connected to an injector head of a wellhead assembly. The conduit device, at any point between said first end and said second end, has a radius of curvature larger than or equal to a given smallest allowable radius of curvature for the intervention string. The conduit device forms a substantially incompressible fixed length path for the portion of said intervention string at any time present between the first end and the second end. The conduit device constitutes a tubular path for the intervention string.

Abstract: A drum unit for an intervention string for a well includes a drum with a radius for the intervention string, arranged in a structural frame and rotatable by a motor, the drum being arranged translating along a drum axis and driven by a translation motor, for controlled winding of the intervention string onto the drum relative to a first, fixed guide in the structural frame. A compensator includes a guide arch, the guide arch being displaceable in a direction orthogonal to the drum axis using a force device at the structural frame. The intervention string runs between the guide arch and the first fixed guide to or from a first end of the guide arch to the drum. The intervention string runs via a second, opposite end of the guide arch via a second, fixed guide at the structural frame, to or from the well.

Abstract: A drum unit for an intervention string for a well includes a drum with a drum axis and with a radius, arranged in a structural frame and rotatable by a motor and a tension compensator. The tension compensator includes a guide arch displaceable in a direction generally along the intervention string, orthogonal to the drum axis, using a first force device connected to the structural frame for keeping the intervention string in tension. At least a first end of the guide arch is laterally displaceable in a direction generally orthogonal to the intervention string, parallel with the drum axis. The intervention string runs between the guide arch to or from the first end to the drum. The intervention string runs via a second, opposite end of the guide arch via a second, fixed guide at the structural frame, directly or indirectly to or from the well.

Abstract: An injector head for feeding a tool string support member downhole is described. The injector head includes a first gripping device and a second gripping device. The first and second gripping devices are adapted to grip a tool string support member passing through an injector head passageway. The injector head further includes an actuator movable between a first position and a second position wherein, movement of the actuator between the first and second positions moves at least a portion of both of the first and second gripping devices towards or away from a passageway longitudinal axis.

Abstract: An apparatus for gripping a support member is described. The apparatus comprises a tubular clamp, the tubular clamp defining a throughbore adapted to receive a support member therethrough, a first apparatus member adapted to engage a first portion of an external surface of the tubular clamp, and a second apparatus member adapted to engage a second portion of the external surface of the tubular clamp. Relative movement of the first apparatus member with respect to the tubular damp in a first direction results in a deflection of a section of a first end of the tubular clamp into the clamp throughbore and relative movement of the second apparatus member in a second direction, opposite the first direction, with respect to the tubular clamp results in a deflection of a section of a second end of the tubular clamp into the clamp throughbore.