Method and apparatus for conducting logging or perforating operations in a borehole

Patent · Tue Sep 14 04:00:00 EDT 1982

OSTI ID:6607110

Escaron, P C; Hoppe, J A

A method and apparatus for conducting logging or perforating operation in a borehole, particularly a deviated borehole, includes lowering a length of drill pipe having the well-logging tool, or well bore perforator, releasably mounted thereon into the borehole. An extension member, which is also lowered through the drill pipe, is secured to the well-logging tool, or well bore perforator, and released from the drill pipe, whereupon the extension member and well-logging tool or well bore perforator are moved through the borehole. The apparatus includes a latching sub mounted to the end of the length of drill pipe, and a latching head releasably mounted within the latching sub for releasably holding a well-logging tool or well bore perforator within the latching sub.

• Assignee: Schlumberger Technology Corp
• Patent Number(s): US 4349072
• OSTI ID: 6607110
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
BOREHOLES
CAVITIES
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
DRILLING FLUIDS
EQUIPMENT
FLUIDS
NATURAL GAS WELLS
OIL WELLS
PERFORATION
PIPES
WELL CASINGS
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS