Selective running tool for wells

Patent · Tue May 24 00:00:00 EDT 1988

OSTI ID:6964753

Semar, J E

A downhole running tool for positioning and locking tool support mandrels within landing nipples of thin production tubing string of a well is described comprising: (a) housing means adapted for connection to a tool string and forming an internal receptacle; (b) an elongated core member being disposed within the internal receptacle and being telescopically movable to collapsed and extended positions defined by spaced stops formed by the housing means, a portion of the elongated core member extending from the housing for connection with a tool support mandrel; and (c) releasable retainer means normally retaining the elongated core member at a substantially fixed set position within the internal receptacle and being released responsive to engagement with the landing nipple during upward movement of the downhole running tool to thus permit collapsing telescoping movement of the elongated core to a mandrel locating position within the internal receptacle.

• Assignee: NOV; NOV-88-023357; EDB-88-153273
• Patent Number(s): US 4745973
• OSTI ID: 6964753
• Resource Relation: Patent File Date: Filed date 23 Apr 1987
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
DRILL PIPES
SLEEVES
MATERIALS HANDLING EQUIPMENT
TOOLS
FASTENERS
FIELD PRODUCTION EQUIPMENT
INSTALLATION
JOINING
NATURAL GAS WELLS
OIL WELLS
POSITIONING
SUPPORTS
DRILLING EQUIPMENT
EQUIPMENT
FABRICATION
MECHANICAL STRUCTURES
PIPES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing