Hydraulic drill string breakdown and bleed off unit

Patent · Tue Feb 17 00:00:00 EST 1987

OSTI ID:6746589

Zeringue, Jr, F J

An apparatus is described for use within an oil well rig for decoupling a tubing string into pipe segments comprising, in combination: rotary tong means for applying an unthreading torque to a first, upper pipe segment within the tubing string; torque resisting means for securing a second, lower pipe segment within the tubing string against the unthreading torque; containing means, intermediate the rotary tong means and the torque resisting means, enclosing a threaded joint of the tubing string, adapted for containing pressurized gases, liquids, and particulates, released from the threaded joint upon the decoupling; fluid communicating means for allowing fluid communication between the containing means and a receiving point adapted for receiving the pressurized gases, liquids, and particulates; means for moving the rotary tong means, the torque resisting means and the containing means between a closed, engaging position with the tubing string and an open position; and means for horizontally moving the rotary tong means, the torque resisting means and the containing means between a position adjacent the tubing string and a position away from the tubing string.

• Assignee: Autobust, Inc., Thibodaux, LA
• Patent Number(s): US 4643259
• OSTI ID: 6746589
• Resource Relation: Patent File Date: Filed date 4 Oct 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
42 ENGINEERING
DRILL PIPES
THREADED JOINTS
TORQUE
OIL WELLS
DRILLING RIGS
HYDRAULIC EQUIPMENT
DRILL BITS
GAS FLOW
LIQUID FLOW
PARTICULATES
POSITIONING
PRESSURIZING
SOLIDS FLOW
DRILLING EQUIPMENT
EQUIPMENT
FLUID FLOW
JOINTS
PARTICLES
PIPES
WELLS
020300* - Petroleum- Drilling & Production
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)