Heave compensated stabbing and landing tool

Patent · Tue Aug 22 04:00:00 EDT 1989

OSTI ID:5427073

Johnson, D V; Burkhardt, J A; Childers, T W

This patent describes a heave compensated stabbing and landing tool for use on a vessel including a drill string compensator and a tubing string connected to the drill string compensator. It comprises: an upper tubing grip having a first engaged position in which it grips the tubing string and a second disengaged position; a lower tubing grip having a first engaged position in which it grips the tubing string and a second disengaged position; means connected to the upper and lower tubing grips for selectively adjusting the vertical distance therebetween to allow controlled vertical placement of the lower end of the tubing string; and a separator anchor line having a first end connected to the lower tubing grip and a second end adapted to be anchored to the seabed, wherein the anchor line is adapted to anchor the tool to the seabed independently of the drill string.

• Assignee: Exxon Production Research Co., Houston, TX
• Patent Number(s): US 4858694
• Application Number: PPN: US 7-156053A
• OSTI ID: 5427073
• 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
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
423000 -- Engineering-- Marine Engineering-- (1980-)
DRILL PIPES
DRILLING
DRILLING EQUIPMENT
DRILLING RIGS
EQUIPMENT
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
NATURAL GAS WELLS
OFFSHORE DRILLING
OIL WELLS
PIPES
SHIPS
WELLS