A coiled tubing operating system and a coiled tubing operating method are provided, which relate to a technical field of coiled tubing. The coiled tubing operating system includes: an injector assembly for lifting or lowering a coiled tube; a suspending device for suspending the injector assembly; a reel assembly for feeding the coiled tube to the injector assembly, and for rewinding the coiled tube from the injector assembly; and a circuit control system connected to the injector assembly and the reel assembly, for controlling movements of the injector assembly and the reel assembly. The system can ensure the stability of the coiled tubing, the precision of equipment control, and reduction of the environment pollution.

A reel assembly is provided. The reel assembly includes a housing, a drum core disposed within the housing, and a splitter flange separating the drum core into a first partition and a second partition. A first conduit is wound on the first partition of the drum core, and a second conduit is wound on the second partition of the drum core. A conduit handler system is utilized to make a connection or test a connection between the first conduit and the second conduit using actuating pistons to apply a compressive or an opposing tensile force on the connection.

A reel assembly is provided. The reel assembly includes a housing, a drum core disposed within the housing, and a splitter flange separating the drum core into a first partition and a second partition. A first conduit is wound on the first partition of the drum core, and a second conduit is wound on the second partition of the drum core. A conduit handler system is utilized to make a connection or test a connection between the first conduit and the second conduit using actuating pistons to apply a compressive or an opposing tensile force on the connection.

Apparatus and methods provide for a tubing head spool that may be disposed in a wellhead during drilling or other wellbore operations, after which a tubing hanger adapter may be disposed within the tubing head spool for hanging tubing. Methods include installing a tubing head spool onto a wellhead, installing a blow out preventer onto the tubing head spool, drilling a well by running downhole tools and at least one casing string through the tubing head spool, running a tubing hanger adapter bushing through the blow out preventer and into the tubing head spool, running a tubing string into the well, and landing out the tubing string using a tubing hanger configured to hang within the tubing hanger adapter bushing.

Apparatus and methods provide for a tubing head spool that may be disposed in a wellhead during drilling or other wellbore operations, after which a tubing hanger adapter may be disposed within the tubing head spool for hanging tubing. Methods include installing a tubing head spool onto a wellhead, installing a blow out preventer onto the tubing head spool, drilling a well by running downhole tools and at least one casing string through the tubing head spool, running a tubing hanger adapter bushing through the blow out preventer and into the tubing head spool, running a tubing string into the well, and landing out the tubing string using a tubing hanger configured to hang within the tubing hanger adapter bushing.

A fishing operation may include actuating a blind ram above the wellhead to seal around the wireline; pulling out a portion of the wireline out of the wellhead; cutting the portion of the wireline; rigging up a coiled tubing blowout preventer on top of the blind ram; connecting a wire within a coiled tubing to the wireline; connecting a coiled tubing bottom hole assembly to the coiled tubing; opening the blind ram and running in hole the coiled tubing into the wellbore; pulling, with the wire, the wireline inside the coiled tubing as the coiled tubing is lowered into the wellbore; lowering the coiled tubing to reach a depth within the wellbore containing a stall or stuck point in the tubular string; cutting the wireline with a wire cutter of the coiled tubing bottom hole assembly; and pulling out the coiled tubing with the wireline.

A coiled tubing injector including two or more drive chains each carrying a plurality of grippers for engaging coiled tubing within a grip zone defined between the two or more drive chains, a drive system including at least one hydraulic motor connected to a drive line and a return line forming a drive circuit for fluidly powering the at least one hydraulic motor, and a tension system including at least one hydraulic cylinder for tensioning the two or more drive chains. The tension system can include a reactive chain tension circuit for automatically tensioning the two or more drive chains by maintaining a pressure differential between a fluid pressure within the drive line and a fluid pressure within the at least one hydraulic cylinder.

A coiled tubing injector including two or more drive chains each carrying a plurality of grippers for engaging coiled tubing within a grip zone defined between the two or more drive chains, a drive system including at least one hydraulic motor connected to a drive line and a return line forming a drive circuit for fluidly powering the at least one hydraulic motor, and a tension system including at least one hydraulic cylinder for tensioning the two or more drive chains. The tension system can include a reactive chain tension circuit for automatically tensioning the two or more drive chains by maintaining a pressure differential between a fluid pressure within the drive line and a fluid pressure within the at least one hydraulic cylinder.

An apparatus for obtaining fluids via a well is disclosed. The apparatus includes an outer tubing disposed in the well and set at a shallow reservoir comprising a first fluid, an inner tubing disposed concentrically within the outer tubing and set at a deeper reservoir further downhole than the shallow reservoir, the deeper reservoir comprising a second fluid, a first packer disposed between the outer tubing and an external tubing and disposed above the shallow reservoir, and a second packer disposed between the outer tubing and the inner tubing and disposed above the deeper reservoir, wherein the second packer blocks an annulus through which the first fluid is extracted via the outer tubing. The first fluid is obtained from the shallow reservoir and the second fluid is obtained from the deeper reservoir by drilling via the well.

An apparatus for obtaining fluids via a well is disclosed. The apparatus includes an outer tubing disposed in the well and set at a shallow reservoir comprising a first fluid, an inner tubing disposed concentrically within the outer tubing and set at a deeper reservoir further downhole than the shallow reservoir, the deeper reservoir comprising a second fluid, a first packer disposed between the outer tubing and an external tubing and disposed above the shallow reservoir, and a second packer disposed between the outer tubing and the inner tubing and disposed above the deeper reservoir, wherein the second packer blocks an annulus through which the first fluid is extracted via the outer tubing. The first fluid is obtained from the shallow reservoir and the second fluid is obtained from the deeper reservoir by drilling via the well.