Abstract: A well tool device for transporting a heat generating mixture into a well pipe includes an upper connection section, a main housing section, and an anchoring device. The main housing section includes a compartment for the heat generating mixture. The anchoring device is connected between the upper connection section and the main housing section. The main housing section includes a compartment subsection and a distance subsection. The compartment is located within the compartment subsection. The distance subsection is located above the compartment subsection.

Abstract: A well tool device for transporting a heat generating mixture into a well pipe includes an upper connection section, a main housing section, and a sealing device. The main housing section includes a compartment for the heat generating mixture. The sealing device is provided below the main housing section. The sealing device includes a lower supporting element including a lower wedging surface; an upper wedging surface faced towards the lower wedging surface; and a sealing ring provided between the lower wedging surface and the upper wedging surface. The sealing element includes a plurality of thimble-shaped elements inserted into each other to form a torus. Relative axial movement between the lower wedging surface and the upper wedging surface in a direction towards each other provides radial expansion of the sealing element.

Abstract: A well tool device includes a housing having an axial through bore; a sleeve section releasably connected to the housing in the axial through bore, wherein the sleeve section comprises an axial bore; a frangible disc provided in the axial bore of the sleeve section in sealing engagement with the sleeve section. The sleeve section is axially displaceable within the axial through bore between a first position and a second position. The well tool device includes a first supporting sleeve fixed to the housing in the axial through bore and a second supporting sleeve provided radially inside of, and releasably connected to, the first supporting sleeve. The first supporting sleeve includes an upwardly facing surface configured to support a lower end of the sleeve section when the sleeve section is in the second position.

Abstract: A well tool device includes a housing having an axial through bore; a sleeve section axially displaceable relative to the housing; a fluid flow preventing frangible disc; and an axial fluid passage bypassing the frangible disc when the well tool device is in an initial state, thereby allowing a fluid flow between a first location above the frangible disc and a second location below the frangible disc. The sleeve section includes an axial through bore aligned with the axial through bore of the housing. The axial fluid passage is closed when the well tool device is in a intermediate state. The fluid flow preventing frangible disc is provided in the bore of the sleeve section in sealing engagement with the sleeve section. The well tool device further includes a disc supporting device for supporting the frangible disc in relation to the sleeve section. The disc supporting device is releasably connected inside the sleeve section by a releasable connection device.

Abstract: Method for replacing a chemical injection valve connected to a well head via an injection line housing, where an end of an injection line is provided within the injection line housing, includes: connecting an injection line plugging tool to the chemical injection valve; providing threads in the end of the injection line by means of the injection line plugging tool; connecting an injection line plug to the threads of the injection line by the injection line plugging tool; disconnecting the chemical injection valve from the injection line housing; connecting a further chemical injection valve to the injection line housing; connecting the injection line plugging tool to the further chemical injection valve; removing the injection line plug from the end of the injection line by the injection line plugging tool; disconnecting the injection line plugging tool from the further chemical injection valve.

Abstract: A well tool device for forming a permanent well barrier includes a housing having a circular cross-section and a longitudinal extension; a pyrotechnic mixture provided in the housing; a flow generating device provided in the housing; and a motor for driving the flow generating device. After ignition, the pyrotechnic mixture turns into a molten mass; and the flow generating device is configured to generate a forced flow of the molten mass. A method for forming a permanent well barrier using the well tool device includes installing the well tool device in a well; and igniting the pyrotechnic mixture. The pyrotechnic mixture turns into a molten mass upon ignition. The method further includes starting the motor; and generating a forced flow of molten mass by the flow generating device.

Abstract: A well tool device includes a housing having an axial through bore; a sleeve section axially displaceable relative to the housing; a fluid flow preventing frangible disc; and an axial fluid passage bypassing the frangible disc when the well tool device is in an initial state, thereby allowing a fluid flow between a first location above the frangible disc and a second location below the frangible disc. The sleeve section includes an axial through bore aligned with the axial through bore of the housing. The axial fluid passage is closed when the well tool device is in a intermediate state. The fluid flow preventing frangible disc is provided in the bore of the sleeve section in sealing engagement with the sleeve section. The well tool device further includes a disc supporting device for supporting the frangible disc in relation to the sleeve section. The disc supporting device is releasably connected inside the sleeve section by a releasable connection device.

Abstract: A well tool device includes a housing having an axial through bore. The well tool device further includes a sleeve section axially displaceable relative to the housing; a fluid flow preventing frangible disc; and an axial fluid passage bypassing the frangible disc when the well tool device is in an initial state, thereby allowing a fluid flow between a first location above the frangible disc and a second location below the frangible disc. The sleeve section includes an axial through bore aligned with the axial through bore of the housing. The axial fluid passage is closed when the well tool device is in a subsequent state. The fluid flow preventing frangible disc is provided in the bore of the sleeve section in sealing engagement with the sleeve section. The well tool device further includes a disc supporting device for supporting the frangible disc in relation to the sleeve section. The disc supporting device is releasably connected inside the sleeve section by means of a releasable connection device.

Abstract: A well tool device includes a housing; a through bore provided axially through the well tool device; and a frangible disc supported in the through bore by a first supporting device and a second supporting device. The through bore is defined with a bore wall. The second supporting device is axially displaceable in relation to the first supporting device. The well tool includes a shear element for preventing axial displacement of the second supporting device; a sealing element arranged radially outside of the frangible disc and radially inside of the bore wall when the well tool device is in a first state, in which the sealing element together with the frangible disc is configured to prevent axial fluid flow between a first side of the frangible disc and a second side of the frangible disc; and a disintegration device.

Abstract: A well tool device includes a housing having an axial through bore; a sleeve section releasably connected to the housing in the axial through bore, wherein the sleeve section comprises an axial bore; a frangible disc provided in the axial bore of the sleeve section in sealing engagement with the sleeve section. The sleeve section is axially displaceable within the axial through bore between a first position and a second position. The well tool device includes a first supporting sleeve fixed to the housing in the axial through bore and a second supporting sleeve provided radially inside of, and releasably connected to, the first supporting sleeve. The first supporting sleeve includes an upwardly facing surface configured to support a lower end of the sleeve section when the sleeve section is in the second position.

Abstract: The present invention relates to a well tool device (1) comprising a housing (10) having an axial through bore (11). A sleeve section (20) is releasably connected to the housing (10) in the through bore (11). The sleeve section (20) comprises an axial bore (21) and a frangible disc (30) provided in the bore (21) of the sleeve section (20) in sealing engagement with the sleeve section (20). The sleeve section (20) is axially displaceable within the bore (11) between a first position (P1) and a second position (P2). The housing (10) comprises an axial bypass fluid passage (12) provided axially between a first location (L1) above the sleeve section (20) to a second location (L2) below the sleeve section (20) when the sleeve section (20) is in the first position (P1). The axial bypass fluid passage (12) is provided radially between the sleeve section (20) and the housing (10) when the sleeve section (20) is in the first position (P1).

Abstract: A well tool device includes a mandrel device having an axial center axis, a housing device provided radially outside of the mandrel device, and a ratchet system. The ratchet system includes a grooved outer surface area of the mandrel device, a first locking ring including a grooved inner surface area engaged with the grooved outer surface area of the mandrel device, a grooved outer surface area, and an axial slit allowing radial expansion of the first locking ring. The first locking ring is engaged with the outer housing. The ratchet system is configured to allowing relative axial movement between the mandrel device and the first locking ring in a first axial direction and to prevent relative axial movement between the mandrel device and the locking ring in a second direction opposite of the first direction.

Abstract: Method for replacing a chemical injection valve connected to a well head via an injection line housing, where an end of an injection line is provided within the injection line housing, includes: connecting an injection line plugging tool to the chemical injection valve; providing threads in the end of the injection line by means of the injection line plugging tool; connecting an injection line plug to the threads of the injection line by the injection line plugging tool; disconnecting the chemical injection valve from the injection line housing; connecting a further chemical injection valve to the injection line housing; connecting the injection line plugging tool to the further chemical injection valve; removing the injection line plug from the end of the injection line by the injection line plugging tool; disconnecting the injection line plugging tool from the further chemical injection valve.

Abstract: The invention relates to a well tool assembly (1) comprising a setting tool (10) and a plugging tool (20). The plugging tool (20) comprises: an inner mandrel device (21) and an outer housing device (26), an upper sealing device (30), a slips device (40), a lower sealing device (50) and a centralizing device (60) connected to each other in an axial direction outside of the mandrel device 21. The slips device (40) is provided axially between the upper and lower sealing devices (30, 50). The centralizing device (60) is provided below the lower sealing device (50) or above the upper sealing device (30).

Abstract: A well tool device includes a housing having an axial through bore. The well tool device further includes a sleeve section axially displaceable relative to the housing; a fluid flow preventing frangible disc; and an axial fluid passage bypassing the frangible disc when the well tool device is in an initial state, thereby allowing a fluid flow between a first location above the frangible disc and a second location below the frangible disc. The sleeve section includes an axial through bore aligned with the axial through bore of the housing. The axial fluid passage is closed when the well tool device is in a subsequent state. The fluid flow preventing frangible disc is provided in the bore of the sleeve section in sealing engagement with the sleeve section. The well tool device further includes a disc supporting device for supporting the frangible disc in relation to the sleeve section. The disc supporting device is releasably connected inside the sleeve section by means of a releasable connection device.

Abstract: A well tool device may include a housing having an inner surface defining a through bore, a frangible glass body with upper and lower chamfered supporting surfaces and a seat for supporting the frangible glass body in relation to the housing. Additionally, a sealing device is provided between the frangible disc and the seat. Further, the frangible glass body is provided as one glass body with a barrier portion supported by the seat and a neck portion protruding in the direction of the through bore, where the diameter of the neck portion is smaller than the diameter of the barrier portion.

Abstract: A well tool device includes a mandrel device having an axial center axis, a housing device provided radially outside of the mandrel device, and a ratchet system. The ratchet system includes a grooved outer surface area of the mandrel device, a first locking ring including a grooved inner surface area engaged with the grooved outer surface area of the mandrel device, a grooved outer surface area, and an axial slit allowing radial expansion of the first locking ring. The first locking ring is engaged with the outer housing. The ratchet system is configured to allowing relative axial movement between the mandrel device and the first locking ring in a first axial direction and to prevent relative axial movement between the mandrel device and the locking ring in a second direction opposite of the first direction.

Abstract: A well tool device may include a first subsection and a second subsection connected to each other. The first subsection comprises a first connector having an outwardly facing first connection interface and the second subsection comprises a second connector having an inwardly facing second connection interface, where the second connector is provided radially outside of the first connector. The first connection interface is facing towards the second connection interface. The first connection interface comprises a first recess provided in the first connector. The second connection interface comprises a second recess provided in the second connector. The first and second recesses together are forming a bolt compartment. The well tool device further comprises a locking bolt provided in the bolt compartment formed by the first and second recesses in order to connect the first and second subsections to each other.

Abstract: The invention relates to a well tool assembly (1) comprising a setting tool (10) and a plugging tool (20). The plugging tool (20) comprises: an inner mandrel device (21) and an outer housing device (26), an upper sealing device (30), a slips device (40), a lower sealing device (50) and a centralizing device (60) connected to each other in an axial direction outside of the mandrel device 21. The slips device (40) is provided axially between the upper and lower sealing devices (30, 50). The centralizing device (60) is provided below the lower sealing device (50) or above the upper sealing device (30).

Abstract: The present invention relates to a well tool device (1) comprising a housing (10) having an axial through bore (11). A sleeve section (20) is releasably connected to the housing (10) in the through bore (11). The sleeve section (20) comprises an axial bore (21) and a frangible disc (30) provided in the bore (21) of the sleeve section (20) in sealing engagement with the sleeve section (20). The sleeve section (20) is axially displaceable within the bore (11) between a first position (P1) and a second position (P2). The housing (10) comprises an axial bypass fluid passage (12) provided axially between a first location (L1) above the sleeve section (20) to a second location (L2) below the sleeve section (20) when the sleeve section (20) is in the first position (P1). The axial bypass fluid passage (12) is provided radially between the sleeve section (20) and the housing (10) when the sleeve section (20) is in the first position (P1).