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AssigneeCudd Pressure Control, Inc.
InventorsMichael L. (Lee) Smith, Leslie D. (Dale) Skinner, Charles C. (Curtis) Overstreet
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Method and apparatus for drilling, completion, well workovers and well control, combining an integrated lifting unit and a coiled tubing unit, the method and apparatus permit running jointed pipe and coil tubing in combination, and standing multiple joints of pipe near the unit. The invention combines a hydraulic pipe hoisting system, pipe handling systems and pipe racking containment apparatus. A hydraulic workover jack is combined with a multifunction injector head and a standpipe for fluid circulation. The invention may also include a rotary table for rotating pipe and/or a rotating power swivel to allow fluid circulation during pipe rotation. Also included are a gin pole, a winching system for jointed pipe, and a traveling head with traveling slips and stationary slips to allow pipe movement in the well. Hydraulic systems allow insertion and extraction of tools in a work string. The apparatus includes spoolable drill pipe including a connector, multi-section reel with core, connection to reel for fluid circulation, reel drive mechanism and a pipe pulling capability.
A new and improved apparatus for drilling permitting running jointed pipe and coiled tubing in combination, comprising an integrated hydraulic workover unit and a coiled tubing injection unit, wherein said integrated workover unit and coiled tubing unit comprises a multi-function injector head framed within a window defined by components of said hydraulic workover unit, and wherein said multi-function injector head comprises two halves movable radially relative to the centerline of the wellbore and wherein said multi-function injector head further comprises hydraulic pistons actuatable to translate said halves radially relative to the centerline of the wellbore.
A method for drilling combining an integrated hydraulic jacking unit and a coiled tubing unit, permitting running jointed pipe and coil tubing in combination, comprising the sequential steps in various order and combination of:
Dependencies are inferred from the claim text.