Well pipe stabbing and back-up apparatus

Patent · Mon Dec 01 23:00:00 EST 1986

OSTI ID:7229855

Boyadjieff, G I

This patent describes a well apparatus comprising: a back-up tool for holding the upper threaded end of a string of well pipe against rotation as an additional length of pipe is connected thereto; means mounting the back-up tool for movement between an active position for engaging and holding the upper end of the pipe string and an inactive position offset laterally with respect to the string; a stabbing unit for locating the additional length of pipe during connection to the string; and means mounting the stabbing unit for movement with the back-up tool between the active and inactive positions thereof and for movement relative to the back-up tool.

• Assignee: Varco International, Inc., Orange, CA
• Patent Number(s): US 4625796
• OSTI ID: 7229855
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
ALIGNMENT
DRILL BITS
DRILL PIPES
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
FASTENERS
JOINTS
MOTION
NATURAL GAS WELLS
OIL WELLS
PIPES
POSITIONING
ROTATION
THREADED JOINTS
WELL DRILLING
WELLS