Easy break-out tool joint and method

Patent · Tue Apr 21 00:00:00 EDT 1987

OSTI ID:6568043

Goris, G A; Krasnov, I

An easy break-out tool joint is described for reducing the torque required to break-out tubular members connected together by torque applying means to form a joint comprising, a first tubular member having a first shoulder means and external threads, thus forming a pin, a second tubular member having an end shoulder means and internal threads, thus forming a box, the pin being adapted to be threaded into the box until the shoulder means engage to form the joint, the first shoulder means becoming part of the torque applying means to rotate the second tubular member when the first tubular member is rotated in one direction, and means for moving the first shoulder means away from the end shoulder means when the first tubular member is rotated in a second direction. A member is described of back reaming a well bore located below a drilling platform comprises the steps of: lowering a drive means including an easy break-out tool to the platform level and connecting the drive means via the easy break-out tool to the top of a drill string located at about the platform level, raising the drive means and the drill pipe string while rotating the string in one direction, stopping the raising of the string and stopping rotation after the lower of a plurality of drill pipe lengths has reached a point slightly above the platform, gripping a drill pipe length located below the lower drill pipe length, rotating the drive means in the opposite direction from the one direction so that easy break-out tool functions.

• Assignee: Vetco Gray Inc., Houston, TX
• Patent Number(s): US 4658915
• OSTI ID: 6568043
• Resource Relation: Patent File Date: Filed date 6 Dec 1985
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
42 ENGINEERING
DRILL PIPES
HOISTING
PIPE JOINTS
TORQUE
WELL DRILLING
CONNECTORS
NATURAL GAS WELLS
OIL WELLS
ROTATION
THREADED JOINTS
TUBES
CONDUCTOR DEVICES
DRILLING
DRILLING EQUIPMENT
ELECTRICAL EQUIPMENT
EQUIPMENT
JOINTS
MATERIALS HANDLING
MOTION
PIPES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)