System for stabbing well casing

Patent · Tue Apr 03 04:00:00 EST 1984

OSTI ID:6645225

McArthur, J R

Apparatus for stabbing well casing to join casing sections to each other, includes a rotary table assembly for supporting a casing section in a well bore, a derrick over the rotary table assembly, a crown block at the top of the derrick, a first piston and cylinder subassembly pivotally mounted on one side of the derrick over the rotary table assembly and below the crown block for pivotation about a horizontal axis, a second piston and cylinder subassembly pivotally mounted on a second side of the derrick for pivotation about a horizontal axis. The second piston and cylinder subassembly is located over the rotary table assembly and below the crown block and extends substantially normal to the direction of extension of the first piston and cylinder subassembly. The cooperating casing clamping elements are carried on the piston rods of the first and second piston and cylinder subassemblies, and counter balancing subassemblies are connected to the first and second piston and cylinder subassemblies for pivoting the first and second piston and cylinder subassemblies to a vertically extending inoperative position.

• Assignee: EDB-84-144587
• Patent Number(s): US 4440220
• OSTI ID: 6645225
• 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
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
DRILLING RIGS
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
MATERIALS HANDLING EQUIPMENT
NATURAL GAS WELLS
OIL WELLS
PIPES
PISTONS
POSITIONING
WELL CASINGS
WELLS