Casing stabbing and positioning apparatus

Patent · Tue Mar 24 04:00:00 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; EDB-87-078532; NOV-87-053383
• Patent Number(s): US 4652195
• OSTI ID: 6632394
• Country of Publication: United States
• Language: English

Related Subjects

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