| 主权项 |
1. A system for conveying coiled tubing (CT) into and out of a wellbore comprising:
a first mobile unit having a first mobile frame having a drive end, a back end and a mast supported on the back end adjacent the wellbore, the mast pivotable between a transport position and an erect position; a CT injector moveable along the mast; a gooseneck; and a rotatable support between the gooseneck and the injector; and a second mobile unit having a second mobile frame having a CT reel and a reel drive, wherein when the second mobile unit is located at the drive end of the first mobile unit, the gooseneck is rotatable on the rotating support to the drive end to receive CT therefrom, and when the second mobile unit is located at the back end of the first mobile unit, the gooseneck is rotatable on the rotating support to the back end to receive CT therefrom; and the system further comprising a carriage for supporting the CT injector, and wherein the mast further comprises a pair of parallel mast posts connected at the back end and at a crown; the carriage being supported between the mast posts for moving the injector along the mast; and wherein the gooseneck further comprises: a proximal segment connected to the rotatable support, and a distal segment connected to the proximal segment and pivotable between an extended position for forming an arcuate CT guide, and a folded position; and when the gooseneck is in the folded position, the folded gooseneck has an effective turning radius that enables rotation between the drive end and back end; and wherein the gooseneck further comprises: an actuator operative between the proximal and distal segments for manipulating the gooseneck between the extended and folded positions; and wherein, at least when the gooseneck is in the folded position, the proximal segment is pivotable at a guide pivot at the rotating support for moving the effective turning radius of the folded gooseneck clear of the mast posts. |
