A running tool sets and cements a liner in a borehole. While the tool's bypass section is closed, a plug deployed to the tool diverts hydraulic pressure to set a liner hanger in the borehole. The setting plug is unseated, and the bypass section is switched opened by deploying another plug to an opening seat and shifting a control sleeve open relative to a bypass port. While the tool's packoff remains sealed in the hanger, cement pumped out the bypass port is bullheaded into a lap of the liner and borehole. When cementing is complete, the bypass section is switched closed by deploying another plug to a closing seat and shifting the control sleeve closed relative to the bypass port. The bypass section is then placed in a flow-through condition where fluid communication is reestablished through the tool to the liner by allowing fluid to flow past the plugs in the tool.

In one embodiment, there is provided a system for liner drilling in a wellbore that includes a drill bit, a mud motor, a reamer, a drill pipe work string including an expandable liner hanger running tool, and a thruster coupled to an expandable liner hanger and liner. A release pin may be provided in the expandable liner hanger running tool that can be sheared to de-couple the expandable liner hanger from the expandable liner hanger running tool allowing the drill pipe work string to be removed from the borehole while the liner remains in place. A latch coupling is also provided for coupling the expandable liner hanger running tool to the expandable liner hanger when the drill pipe work string is tripped back into the borehole so the liner drilling can be performed using the thruster until the thruster is at full stroke.

A cementing plug including a wiper portion, an engagement section attached to the wiper portion, the engagement section including an engagement feature configured to release at a selected threshold pressure related to cement forming an annular structure about a fracturing device.

A method for operation in wellbore, the method comprises: pumping a fluid barrier into a wellbore through a tubular, the fluid barrier being operable to separate a cement slurry from a second fluid; the fluid barrier comprising a polyurethane member derived from a polyurethane forming composition comprising a para-phenylene diisocyanate terminated polycarbonate prepolymer and an aromatic diol.

A cementing system and method for selectively providing bottom-up cementing and top-down cementing of a liner during a single downhole trip are provided. The cementing system has three configurations. A first configuration of the tool allows fluid flow through a central flowbore of the cementing tool, a liner hanger setting tool below the cementing tool, and the liner. A second configuration of the tool routes fluid from the central flowbore of the cementing tool to an annulus surrounding the liner hanger setting tool and the liner. A third configuration of the tool reestablishes flow through the central flowbore of the cementing tool and enables a dropped ball to reach the liner hanger setting tool.

In accordance with one aspect of the disclosure, a system includes a multiple cement plug launching system having a plug system adapter assembly, a first plug assembly comprising a first central passage and a plurality of rupture disks, wherein each rupture disk of the plurality of rupture disks occludes a respective one of a plurality of rupture disk ports extending through the first plug assembly, and a second plug assembly comprising a second central passage, wherein the plug system adapter assembly is coupled to the second plug assembly, which is coupled to the first plug assembly, such that the plug system adapter assembly, the second plug assembly, and the first plug assembly are coupled to one another in an axial arrangement.

A method for casing a subsea wellbore includes running a tieback casing string into the subsea wellbore using a workstring including first, second, and third wiper plugs. The method further includes: launching a first release plug or tag into the workstring; pumping cement slurry into the workstring, thereby driving the first release plug or tag along the workstring; after pumping the cement slurry, launching a second release plug or tag into the workstring; and pumping chaser fluid into the workstring, thereby driving the release plugs or tags and cement slurry through the workstring. The release plugs or tags engage and release the respective wiper plugs from the workstring. The first wiper plug or release plug ruptures, thereby allowing the cement slurry to flow therethrough. The method further includes: stabbing the tieback casing string into a liner string; and retrieving the workstring, the workstring still including the third wiper plug.

The present disclosure, in at least one aspect, provides a valve, a method for sealing, and a related well system. The valve, in one aspect, includes a housing, and a sliding sleeve disposed in the housing and defining an annular flow path between the sliding sleeve and the housing, the sliding sleeve configured to move from a closed positioned closing the annular flow path to an open position opening the flow path. The valve, in at least one other aspect, further includes a plug member positioned within the annular flow path, the plug member comprising a metal configured to expand in response to hydrolysis to seal the annular flow path.

A system for cementing a wellbore having a casing string disposed in the wellbore is provided. The system includes a cement tool, a fiber optic cable, and a computing device. The cement tool is operable to be deployed down the wellbore through a casing string from a surface during cementing process of the wellbore. The cement tool includes a tool sensor. The fiber optic cable is coupled with the cement tool such that the fiber optic cable spans the wellbore from the cement tool to the surface. The fiber optic cable is communicatively coupled with the tool sensor. The computing device is communicatively coupled with the fiber optic cable and is operable to receive and process signals from the tool sensor via the fiber optic cable during the cementing process.

A wellbore tool system for use within a wellbore includes a stage packer shoe, having a lower body extending from a first end to a second end; an upper body attached to the lower body at the second end; and circulation ports extending through a thickness of the upper body; a metal cup having a predetermined diameter as determined by a diameter of the wellbore; the metal cup secured around a periphery of the lower body of the stage packer shoe such that the metal cup extends away from the periphery; the metal cup is to engage with the wellbore enough to have differential pressure holding capability between the stage packer shoe and the wellbore; and the differential pressure of the metal cup is dependent on a strength of the cup and the wellbore with which the metal cup is engaged.