Auxiliary workover rig

Patent · Tue Sep 11 00:00:00 EDT 1984

OSTI ID:6165943

Brewer, J D; Gunther, Jr, A W; Gunther, Sr, A W

An auxiliary rig is used in combination with a primary drilling or workover rig. The primary drilling rig typically includes an elongated upstanding drill tower, a base and a crown block. The auxiliary rig of the present invention includes a racking tower detachably mounted with the upper end of the drill tower to form an extension to the drill tower for receiving interconnected pairs of tubular members to reduce the tripping time of the tubular members into and out of the well. A movable slip and a controller therefor of the auxiliary rig are operably guided by the racking tower for releasably supporting the pairs of tubular members.

• Assignee: Pressure Services Inc.
• Patent Number(s): US 4470739
• OSTI ID: 6165943
• Resource Relation: Patent File Date: Filed date 23 Aug 1982; Other Information: PAT-APPL-410532
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DRILLING RIGS
DESIGN
OIL WELLS
DRILL PIPES
HOISTING
THREADED JOINTS
TOWERS
DRILLING EQUIPMENT
EQUIPMENT
JOINTS
MATERIALS HANDLING
MECHANICAL STRUCTURES
PIPES
WELLS
020300* - Petroleum- Drilling & Production