Abstract: A device for setting and retrieving a crown plug in a well head. The device has a mandrel device, an outer housing device, a snap sleeve device downwardly protruding from the lower end of the mandrel device and a locking element. The device has an upper plug connection device and a lower plug connection device for connection to the upper connection interface and a lower plug connection device of the crown plug, respectively. An annular compartment is provided radially outside at least parts of the locking element and radially inside a lower end section of the mandrel device. An upper end of the snap sleeve device is provided axially displaceable in the annular compartment. The lower plug connection device may be configured between a locked state and an unlocked state by axial displacement of the snap sleeve device in relation to the locking element.

Abstract: A device for setting and retrieving a crown plug in a well head. The device has a mandrel device, an outer housing device, a snap sleeve device downwardly protruding from the lower end of the mandrel device and a locking element. The device has an upper plug connection device and a lower plug connection device for connection to the upper connection interface and a lower plug connection device of the crown plug, respectively. An annular compartment is provided radially outside at least parts of the locking element and radially inside a lower end section of the mandrel device. An upper end of the snap sleeve device is provided axially displaceable in the annular compartment. The lower plug connection device may be configured between a locked state and an unlocked state by axial displacement of the snap sleeve device in relation to the locking element.

Abstract: A method and downhole apparatus including a downhole indexer for cyclically varying a configuration or operational mode of a downhole tool according to a predetermined sequence. The apparatus includes tubular body, an indexing member, and a balance piston. The indexing member is selectively moveable relative to the tubular body between a first axial position and a second axial position in response to a signal. The balance piston supports the indexing member at the second position.

Abstract: A method and downhole apparatus including a downhole indexer for cyclically varying a configuration or operational mode of a downhole tool according to a predetermined sequence. The apparatus includes tubular body, an indexing member, and a balance piston. The indexing member is selectively moveable relative to the tubular body between a first axial position and a second axial position in response to a signal. The balance piston supports the indexing member at the second position.

Abstract: The invention relates to a flow activated circulating valve (1). The valve comprises an outer housing (10) comprising radial ports (11) provided axially between an upper portion (1a) of the valve (1) and a lower portion (1b) of the valve (1). An inner sleeve (20) provided inside the outer housing (10), where the inner sleeve (20) is providing an axial bore (21) through the upper portion (1a) of the valve (1) to the radial ports (11). A cylinder compartment (30) is provided between the inner sleeve (20) and the outer housing (10). A piston (40) is arranged for axial and rotational movement in the cylinder compartment (30), where the piston (40) comprises piston ports (41) arranged to provide fluid communication between the axial bore (21) and the radial ports (11) when the piston (40) is in an open position (P0), and where the piston (40) is arranged to prevent fluid communication between the axial bore (21) and the radial ports (11) when the piston (40) is in closed positions (P1, P2, P3).

Abstract: The invention relates to a flow activated circulating valve (1). The valve comprises an outer housing (10) comprising radial ports (11) provided axially between an upper portion (1a) of the valve (1) and a lower portion (1b) of the valve (1). An inner sleeve (20) provided inside the outer housing (10), where the inner sleeve (20) is providing an axial bore (21) through the upper portion (1a) of the valve (1) to the radial ports (11). A cylinder compartment (30) is provided between the inner sleeve (20) and the outer housing (10). A piston (40) is arranged for axial and rotational movement in the cylinder compartment (30), where the piston (40) comprises piston ports (41) arranged to provide fluid communication between the axial bore (21) and the radial ports (11) when the piston (40) is in an open position (P0), and where the piston (40) is arranged to prevent fluid communication between the axial bore (21) and the radial ports (11) when the piston (40) is in closed positions (P1, P2, P3).