Well servicing rig

Patent · Tue May 27 04:00:00 EDT 1986

OSTI ID:5373335

Hutchison, S O; Oldershaw, P V; Hansen, J E

A totally contained movable rig is described, including a frame portion thereon, for servicing and drilling and for handling elongated well elements from a horizontal storage position to a vertical position in operating relationship with a well, or the reverse of the positions. The rig consists of: (a) horizontal storing means mounted on the frame of the movable rig for storing the well elements in horizontal position, the horizontal storing means including a pair of pipe rack arms pivotally mounted on each side of the frame of the movable rig so as to be pivoted about a vertical axis between stored position in alignment with the frame and operating position generally horizontal and perpendicular to the frame and a pair of crane means rotatably mounted on the frame of the movable rig so as to be in operational relationship with the pipe rack arms to load and unload the elongated well elements from the pipe rack arms; (b) conveying means mounted on the frame of the movable rig for conveying individual well elements from the horizontal storing means to a transfer location; (c) transfer means mounted on the frame of the movable rig including means for holding the individual well element and means for rotating the well elements to a vertical position parallel to the center line of the well; (d) manipulating means mounted on the frame of the movable rig including means for grasping the well element from the transfer means and moving the well element in a horizontal direction to position the longitudinal axis of the well elements in alignment with the center line of the well; (e) means, mounted on the frame of the movable rig, for moving the well element along the longitudinal axis thereof into operative position with respect to the well; (f) power rotating coupling means mounted on the frame of the movable rig for coupling the well element to other well elements located in the well; (g) and control means.

• Assignee: Chevron Research Co., San Francisco, CA
• Patent Number(s): US 4591006
• OSTI ID: 5373335
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ALIGNMENT
CONVEYORS
DESIGN
DRILLING
DRILLING RIGS
EQUIPMENT
HAULAGE EQUIPMENT
MATERIALS HANDLING EQUIPMENT
NATURAL GAS WELLS
OIL WELLS
POSITIONING
STORAGE FACILITIES
WELL DRILLING
WELL SERVICING
WELLS