Casing stabbing and positioning apparatus

Patent · Tue Mar 24 00:00:00 EST 1987

OSTI ID:6632394

Mc Arthur, J R

This patent describes a casing stabbing apparatus for engaging swinging, suspended, vertically extending sections of well casing, and maneuvering them into a position to be lowered to the well head which apparatus comprises: a derrick bracket subassembly adapted for selective attachment to a horizontally extending structural member of a derrick adapted for use in the drilling and completion of oil and gas wells, the derrick bracket subassembly comprising: bracket plate means adapted for securement to the horizontally extending derrick structural member at a selected location therealong; a trunnion pedestal connected to the bracket plate means; a lower trunnion plate secured to the trunnion pedestal and having a lower side and an upper side; an upper trunnion plate mounted on the upper side of the lower trunnion plate, and rotatably mounted thereon for rotation about a first vertical axis; means for selectively fixedly securing the upper trunnion plate to the lower trunnion plate at a selected position; and support plate means secured to the upper side of the upper trunnion plate and moveable therewith relative to the lower trunnion plate.

• Assignee: NOV; NOV-87-053383; EDB-87-078532
• Patent Number(s): US 4652195
• OSTI ID: 6632394
• Resource Relation: Patent File Date: Filed date 26 Jan 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS WELLS
HOISTS
WELL CASINGS
OIL WELLS
POSITIONING
CYLINDERS
FASTENERS
HOISTING
PISTONS
SUPPORTS
WELL DRILLING
WELLHEADS
DRILLING
EQUIPMENT
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
MECHANICAL STRUCTURES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing