A system is provided including a coiled tubing reel apparatus including a reel drum for storing a coiled tubing string spooled on the reel drum and a hydraulic reel drive motor that controls rotation of the reel drum. The system further includes a reel controller that determines an estimated reel back tension for a portion of the coiled tubing string between the reel apparatus and the injector based on a set of parameters related to a coiled tubing operation. The reel controller determines a target reel back tension to be applied to the portion of the coiled tubing string by adjusting the estimated reel back tension based on a historical job dataset. The reel controller then determines and sets a target hydraulic pressure of the reel drive motor to achieve the target reel back tension in the portion of the coiled tubing string.

A system is provided including a coiled tubing reel apparatus including a reel drum for storing a coiled tubing string spooled on the reel drum and a hydraulic reel drive motor that controls rotation of the reel drum. The system further includes a reel controller that determines an estimated reel back tension for a portion of the coiled tubing string between the reel apparatus and the injector based on a set of parameters related to a coiled tubing operation. The reel controller determines a target reel back tension to be applied to the portion of the coiled tubing string by adjusting the estimated reel back tension based on a historical job dataset. The reel controller then determines and sets a target hydraulic pressure of the reel drive motor to achieve the target reel back tension in the portion of the coiled tubing string.

A body defines a feedthrough passage. Bow springs surround and connect to an outer periphery of the body. The bow springs extend radially outward from the body. An internal coil spring is arranged to actuate axially within the body. A mandrel abuts an end of the coiled spring. The mandrel is arranged to move within the body, the mandrel having sufficient inertia to dampen vibrations.

A wireline system includes an operations cabin with a plurality of electrical devices, and a winch that includes an electric winch motor operable to drive a drum to manipulate a wireline cable. A first engine and a first electric generator are each arranged within the operations cabin and generate electrical power, a second electric generator driven by a second engine via a power takeoff to generate electrical power, and an umbilical extends from the operations cabin to an external energy source to provide electrical power. A battery pack is arranged within the operations cabin and includes rechargeable batteries communicably coupled to the electric generators and the umbilical, wherein the battery pack solely provides electrical power to the electric winch motor and the electrical devices, and wherein the electric generators and the external energy source provide electrical power to recharge the rechargeable batteries.

A bending apparatus for coiled tubing protects the entire path of coiled tubing from the reel to the injector, while still protecting a main controlled bend from the reel to the injector. The bending apparatus includes a conduit having a bend portion and a flexible portion. The main controlled bend is isolated in the bend portion, while a smaller adjustment bend is designed for the flexible portion. The changes in the upright angle from dispensing coiled tubing from different levels of the reel no longer cause damage. The changes in the lateral angle from dispensing coiled tubing from both sides of the reel no longer cause damage. A table mount can also be added to allow more adjustment for changes in the lateral angle.

A bending apparatus for coiled tubing protects the entire path of coiled tubing from the reel to the injector, while still protecting a main controlled bend from the reel to the injector. The bending apparatus includes a conduit having a bend portion and a flexible portion. The main controlled bend is isolated in the bend portion, while a smaller adjustment bend is designed for the flexible portion. The changes in the upright angle from dispensing coiled tubing from different levels of the reel no longer cause damage. The changes in the lateral angle from dispensing coiled tubing from both sides of the reel no longer cause damage. A table mount can also be added to allow more adjustment for changes in the lateral angle.

A deepwater subsea coiled tubing drilling rig includes a lifting rack having an upper rack and a lower rack which are sleeved with each other and connected by a lifting device. A working space is enclosed by the upper rack and the lower rack, and an underwater connecting and disconnecting tool is installed in the working space; the working space is transformed between a high-position large-space state for connecting and disconnecting through the tool and a low-position small-space state for the drilling process, along with the up-down movement of the upper rack. The upper rack is provided with an underwater coiled tubing system used for lowering and lifting a downhole tool combination, and the lower rack is provided with a wellhead device.

A deepwater subsea coiled tubing drilling rig includes a lifting rack having an upper rack and a lower rack which are sleeved with each other and connected by a lifting device. A working space is enclosed by the upper rack and the lower rack, and an underwater connecting and disconnecting tool is installed in the working space; the working space is transformed between a high-position large-space state for connecting and disconnecting through the tool and a low-position small-space state for the drilling process, along with the up-down movement of the upper rack. The upper rack is provided with an underwater coiled tubing system used for lowering and lifting a downhole tool combination, and the lower rack is provided with a wellhead device.

A system includes a collapsible trailer frame and a lifting mechanism coupled to the collapsible trailer frame. The lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe. The system also includes a braking mechanism.

A system includes a collapsible trailer frame and a lifting mechanism coupled to the collapsible trailer frame. The lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe. The system also includes a braking mechanism.