| 摘要 |
An improved method of completing a well having production and service strings of different sizes including the steps of running the production string on a main tubing hanger while controlling the well with a variable bore blowout preventer and running the service string into the tubing hanger while controlling the well with a dual bore blowout preventer. An improved apparatus for completing a well having producing and service strings of different sizes including a main tubing hanger running tool having a removable connection on its lower end to connect to the main tubing hanger, a main bore, an upward tubular extension aligned with the main bore and of sufficient length to extend through the dual bore blowout preventer when the main tubing hanger is seated in the pressure ducts for testing and control of the main and service line tubing hangers, a service line bore offset from the main bore, hose connections at the top of the tubular extension, and parts to register with parts on the service line tubing hanger.
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