Abstract: A system and a method for controlling a subsea blowout preventer stack with a subsea well control system having sensors and a well control programmable logic controller. The sensors are coupled to the subsea blowout preventer stack and a subsea blowout preventer control system. The subsea blowout preventer control system operates the subsea blowout preventer stack. The sensors sense a condition of the subsea blowout preventer stack and the subsea blowout preventer control system and transmit a signal representing a value of the condition to the well control programmable logic controller. The well control programmable logic controller receives the signal from the sensors, compares the value to a preset value, and in response to the value greater than or equal to the preset value, and transmits a command signal to the subsea blowout preventer control system to seal a fluid flow through the subsea blowout preventer stack.

Abstract: A system and a method for controlling a subsea blowout preventer stack with a subsea well control system having sensors and a well control programmable logic controller. The sensors are coupled to the subsea blowout preventer stack and a subsea blowout preventer control system. The subsea blowout preventer control system operates the subsea blowout preventer stack. The sensors sense a condition of the subsea blowout preventer stack and the subsea blowout preventer control system and transmit a signal representing a value of the condition to the well control programmable logic controller. The well control programmable logic controller receives the signal from the sensors, compares the value to a preset value, and in response to the value greater than or equal to the preset value, and transmits a command signal to the subsea blowout preventer control system to seal a fluid flow through the subsea blowout preventer stack.

Abstract: A body defines a central flow passage. A check valve is located within the central flow passage. The check valve is supported by the body. The check valve is arranged such that a fluid flow travels in a downhole direction during operation of the float collar. An auxiliary flow passage is substantially parallel to the central flow passage and is defined by the body. The auxiliary flow passage includes an inlet upstream of the check valve and an outlet at a downhole end of the float collar. A rupture disk seals the inlet of the auxiliary flow passage. The rupture disk is configured to burst at a specified pressure differential.

Abstract: Systems and methods include a computer-implemented method for handling loss circulation zones in wells. A tool is deployed on a work string. The tool includes isolation packers in an un-inflated state and a stinger in a closed position. The tool is run to a target depth along the work string. The isolation packers are inflated, setting the isolation packers in place adjacent to the stinger at the target depth. Circulation ports are opened after the isolation packers are inflated, exposing a diversion flow path. A cement slurry is pumped through the diversion flow path into a loss circulation zone. The circulation ports are closed after the cement slurry is pumped. The work string is disengaged from the stinger.

Abstract: A method includes deploying a cementing assembly within a wellbore. The wellbore includes a loss circulation zone. The cementing assembly includes a work string and a liner assembly coupled to the work string. The liner assembly includes a polished bore receptacle, a liner hanger attached to a downhole end of the polished bore receptacle, a liner, and a cementing sub disposed between the liner hanger and the liner. The method includes anchoring the liner hanger on the casing of the wellbore, cementing an open hole annulus of the wellbore, and setting an annulus packer of the cementing sub on the. The method also includes cementing a casing annulus of the wellbore defined between an external surface of the cementing sub and a wall of wellbore.

Abstract: Systems and methods include a system for deploying and using a customized logging-while-drilling (LWD) tool. A command is provided by a tool control system to a mechanical drive of a LWD tool to cause pads and caliper fingers of the LWD tool to extend radially, lock in place using a locking mechanism, and begin to capture downhole measurements while the LWD tool is deployed in a borehole of a well. Pressure pulse cycles produced by a series of distinct high and low flow rates by the tool control system are provided to create pulses to be detected downhole by pressure transducers. A measurement sequence for caliper and resistivity images is triggered by the tool control system. The measurement sequence is terminated by the tool control system to conserve energy.

Abstract: Systems and methods include a method for using a smart retrievable service packer for pressure testing operations. A service packer is installed to a depth in a well. The service packer includes one or more radio frequency identification devices (RFIDs) positioned above and below a packer element of the service packer. A determination is made, by analyzing information received from the one or more RFIDs, that a pressure leak has occurred across the service packer. The pressure leak is reported to a surface receiver system at a surface of the well.

Abstract: A body defines a central flow passage. A check valve is located within the central flow passage. The check valve is supported by the body. The check valve is arranged such that a fluid flow travels in a downhole direction during operation of the float collar. An auxiliary flow passage is substantially parallel to the central flow passage and is defined by the body. The auxiliary flow passage includes an inlet upstream of the check valve and an outlet at a downhole end of the float collar. A rupture disk seals the inlet of the auxiliary flow passage. The rupture disk is configured to burst at a specified pressure differential.

Abstract: Systems and methods include a system for deploying and using a customized logging-while-drilling (LWD) tool. A command is provided by a tool control system to a mechanical drive of a LWD tool to cause pads and caliper fingers of the LWD tool to extend radially, lock in place using a locking mechanism, and begin to capture downhole measurements while the LWD tool is deployed in a borehole of a well. Pressure pulse cycles produced by a series of distinct high and low flow rates by the tool control system are provided to create pulses to be detected downhole by pressure transducers. A measurement sequence for caliper and resistivity images is triggered by the tool control system. The measurement sequence is terminated by the tool control system to conserve energy.

Abstract: A method includes initiating, by a computer system, a shear ram closure in a central bore of a blow-out preventer stack in response to a determination by the computer system of a loss of well control event and a determination by the computer system, based on a measurement received by the computer system from a joint locator sensor, that a tubing joint is not present within the central bore of the blow-out preventer stack. A pipe ram closure is initiated in response to a determination by the computer system that the shear ram has not fully closed after a predetermined time period since the initiation of the shear closure sequence.

Abstract: A wellbore assembly includes a wellbore string configured to be disposed within a wellbore. The wellbore assembly also includes a float collar coupled to a downhole end of the wellbore string. The float collar includes a housing, a check valve, and a sleeve. The housing includes a fluid outlet. The housing defines a fluid port that extends through a wall of the housing. The check valve is disposed within the housing between the fluid port and the fluid outlet. The sleeve is coupled to the wall of the housing uphole of the check valve. The sleeve moves, based on pressure changes of the fluid in the float collar, with respect to the wall of the housing thereby either exposing the fluid port and opening a fluid pathway from the bore to an annulus of the wellbore, or covering the fluid port and blocking the fluid pathway.

Abstract: A body defines a central flow passage. A check valve is located within the central flow passage. The check valve is supported by the body. The check valve is arranged such that a fluid flow travels in a downhole direction during operation of the float collar. An auxiliary flow passage is substantially parallel to the central flow passage and is defined by the body. The auxiliary flow passage includes an inlet upstream of the check valve and an outlet at a downhole end of the float collar. A rupture disk seals the inlet of the auxiliary flow passage. The rupture disk is configured to burst at a specified pressure differential.

Abstract: Systems and methods include a method for using a smart retrievable service packer for pressure testing operations. A service packer is installed to a depth in a well. The service packer includes one or more radio frequency identification devices (RFIDs) positioned above and below a packer element of the service packer. A determination is made, by analyzing information received from the one or more RFIDs, that a pressure leak has occurred across the service packer. The pressure leak is reported to a surface receiver system at a surface of the well.

Abstract: A downhole release tools, systems, and methods are described. The tool configured to release a string in a wellbore includes: a cylindrical body with an uphole end defining a first set of internal threads and a downhole end defining a second set of internal threads; a sensor operable to measure strain in the cylindrical body, a magnetic field, or both; a release joint with an uphole end defining a first set of external threads and a frustoconical downhole end defining a second set of external threads, the release joint attached to the cylindrical body by engagement between the first set of external threads of the release joint and the second set of internal threads of the cylindrical body; safety pins rotationally fixing the release joint in position relative to the cylindrical body; and a drive system operable to rotate the release joint relative to the cylindrical body.

Abstract: Systems and methods include a computer-implemented method for handling loss circulation zones in wells. A tool is deployed on a work string. The tool includes isolation packers in an un-inflated state and a stinger in a closed position. The tool is run to a target depth along the work string. The isolation packers are inflated, setting the isolation packers in place adjacent to the stinger at the target depth. Circulation ports are opened after the isolation packers are inflated, exposing a diversion flow path. A cement slurry is pumped through the diversion flow path into a loss circulation zone. The circulation ports are closed after the cement slurry is pumped. The work string is disengaged from the stinger.

Abstract: An example method for monitoring drilling includes releasing a wireless data retrieval device within a drill string in a wellbore, forcing fluid downhole through the drill string such that the data retrieval device travels in the fluid through a fluid outlet in a drill bit connected to the drill string, receiving data in the data retrieval device from a wireless sensor disposed on or in a body of the drill bit, and transferring the data from the data retrieval device after the data retrieval device travels in the fluid through the fluid outlet. An example wellbore drilling system includes a drill bit that includes a body, a fluid outlet, one or more wireless sensors disposed on or in the body, and a waterproof data retrieval device configured to receive data wirelessly from the wireless sensor(s), the data retrieval device having a size smaller than an opening in the fluid outlet.

Abstract: In an example method, a system obtains, during a first subterranean drilling operation, first data indicating one or more characteristics of a drill bit of a drilling system, second data including sensor measurements regarding the drilling system, and third data indicating historical information regarding one or more additional subterranean drilling operations. The system determines a first metric based on the first data, a second metric based on the second data, and a third metric based on the third data. Further, the system determines a fourth metric based on the first metric, the second metric, and the third metric, where the fourth metric is indicative of a risk of a stuck pipe in the drilling system during the first subterranean drilling operation. The system generates a graphical user interface for presentation to a user, including an indication of the fourth metric.

Abstract: Systems and methods include a computer-implemented method for handling loss circulation zones in wells. A tool is deployed on a work string. The tool includes isolation packers in an un-inflated state and a stinger in a closed position. The tool is run to a target depth along the work string. The isolation packers are inflated, setting the isolation packers in place adjacent to the stinger at the target depth. Circulation ports are opened after the isolation packers are inflated, exposing a diversion flow path. A cement slurry is pumped through the diversion flow path into a loss circulation zone. The circulation ports are closed after the cement slurry is pumped. The work string is disengaged from the stinger.

Abstract: A wellbore assembly includes a wellbore string configured to be disposed within a wellbore. The wellbore assembly also includes a float collar coupled to a downhole end of the wellbore string. The float collar includes a housing, a check valve, and a sleeve. The housing includes a fluid outlet. The housing defines a fluid port that extends through a wall of the housing. The check valve is disposed within the housing between the fluid port and the fluid outlet. The sleeve is coupled to the wall of the housing uphole of the check valve. The sleeve moves, based on pressure changes of the fluid in the float collar, with respect to the wall of the housing thereby either exposing the fluid port and opening a fluid pathway from the bore to an annulus of the wellbore, or covering the fluid port and blocking the fluid pathway.

Abstract: A body defines a central flow passage. A check valve is located within the central flow passage. The check valve is supported by the body. The check valve is arranged such that a fluid flow travels in a downhole direction during operation of the float collar. An auxiliary flow passage is substantially parallel to the central flow passage and is defined by the body. The auxiliary flow passage includes an inlet upstream of the check valve and an outlet at a downhole end of the float collar. A rupture disk seals the inlet of the auxiliary flow passage. The rupture disk is configured to burst at a specified pressure differential.