The present disclosure provides a bore selector device (10) comprising a housing (11) defining a bore (20) extending therethrough, the bore having a main longitudinal axis. The bore selector device also comprises at least a first and a second actuator (13) opposite each other. Each of the first and second actuators being moveable between respective retracted and extended positions in a direction perpendicular to the main longitudinal axis. Each actuator is connected to a respective ram (12) such that the rams are each moveable between respective retracted positions and extended positions in a direction perpendicular to the main longitudinal axis. Each actuator and attached ram is moveable in the same linear direction.

The present disclosure provides a bore selector device (10) comprising a housing (11) defining a bore (20) extending therethrough, the bore having a main longitudinal axis. The bore selector device also comprises at least a first and a second actuator (13) opposite each other. Each of the first and second actuators being moveable between respective retracted and extended positions in a direction perpendicular to the main longitudinal axis. Each actuator is connected to a respective ram (12) such that the rams are each moveable between respective retracted positions and extended positions in a direction perpendicular to the main longitudinal axis. Each actuator and attached ram is moveable in the same linear direction.

A well tool assembly to cut a wellhead gate valve by water jetting includes a water jetting head lowered into a wellhead tree coupled to a wellbore. The head includes a housing, an orifice plate and a jetting port. The housing defines a tubular region to receive water. The orifice plate is positioned within the tubular region downstream of a first end and upstream of a second end of the housing, and defines an orifice to accelerate a flow rate of the water received at a first flow rate upstream of the orifice plate to a second flow rate, greater than the first, downstream of the plate. At the second flow rate, the water can mill a gate valve within the wellhead. The jetting port is downstream of the orifice plate, and can receive the water at the second flow rate and guide the received water to the gate valve.

A well tool assembly to cut a wellhead gate valve by water jetting includes a water jetting head lowered into a wellhead tree coupled to a wellbore. The head includes a housing, an orifice plate and a jetting port. The housing defines a tubular region to receive water. The orifice plate is positioned within the tubular region downstream of a first end and upstream of a second end of the housing, and defines an orifice to accelerate a flow rate of the water received at a first flow rate upstream of the orifice plate to a second flow rate, greater than the first, downstream of the plate. At the second flow rate, the water can mill a gate valve within the wellhead. The jetting port is downstream of the orifice plate, and can receive the water at the second flow rate and guide the received water to the gate valve.

A swivel anchor of a drill string comprises a slip arrangement, comprising a slip body and at least one slip element; upper and lower connections attachable to further components, wherein the slip arrangement is rotatable about a longitudinal axis with respect to the upper and lower connections and a slip joint, comprising upper and lower components, wherein the upper and lower components may move relative to each other parallel with a longitudinal axis, between an open and closed positions, wherein in the open position a longitudinal displacement between the upper and lower components is greater than when the slip joint is in the closed position, and wherein when the slip joint is in the closed position, the swivel anchor length is less than when in the open position.

A reamer includes a housing, a first reamer block, and a second reamer block. The first reamer block includes a leading wall. A second reamer block includes a trailing wall, the trailing wall including a recess. The leading wall is inserted into or nested in the recess to increase the coverage-to-exposure ratio.

A reamer includes a housing, a first reamer block, and a second reamer block. The first reamer block includes a leading wall. A second reamer block includes a trailing wall, the trailing wall including a recess. The leading wall is inserted into or nested in the recess to increase the coverage-to-exposure ratio.

Devices, systems and methods for cutting openings in a wellbore tubular by a slot cutting assembly having an anchoring system and a slot cutting tool. The anchoring assembly anchors the slot cutting assembly within the wellbore. The slot cutting tool has an extendable cutting blade that is pushed into the wellbore tubular to cut an opening through the tubular. The slot cutting tool may have an extendable stabilizing arm to stabilize and assist with cutting by the blade. The slot cutting assembly may have azimuth and depth sensors to assist with positioning the tool at a desired position downhole. A surface system may be used to control the position of the slot cutting assembly downhole.

A tool is provided for expanding the casing at one or more locations for arresting surface casing vent flow in an abandoned well. A setting tool is run into the bore having an expansion element supported thereon. The setting tool imparts a large axial force to radially expand the expansion element for plastically deforming the casing. A single use, pleated ring crushable expansion element can be actuated and left downhole. The pleated ring tool can be pre-charged with a highly viscous fluid, semi solid for transport, but plastic under load. A multi-use expansion element can be actuated, released, moved and actuated again at successive locations.

A tool is provided for expanding the casing at one or more locations for arresting surface casing vent flow in an abandoned well. A setting tool is run into the bore having an expansion element supported thereon. The setting tool imparts a large axial force to radially expand the expansion element for plastically deforming the casing. A single use, pleated ring crushable expansion element can be actuated and left downhole. The pleated ring tool can be pre-charged with a highly viscous fluid, semi solid for transport, but plastic under load. A multi-use expansion element can be actuated, released, moved and actuated again at successive locations.