Well penetration apparatus and method

Patent · Tue Feb 03 00:00:00 EST 1987

OSTI ID:6790170

Schellstede, H J

A well penetrator is described for use in a well having a casing, the penetrator comprising: (a) an elongated housing having an upper end and a lower end, the upper end being connectable to surface mounted supporting means and the housing being dimensioned and shaped so as to be capable of being moved axially in the casing of a well; (b) an outwardly movable punch member having an inner end and an outer end, the outer end including casing cutting means for cutting an opening in a casing when moved forcefully against such casing; and (c) guide means supporting the punch member for movement relative to the elongated housing between a retracted position in which the outer end of the punch member is positioned substantially within the confines of the elongated housing and an extended position in which the outer end of the punch member is positioned outwardly from the carrier body.

• Assignee: NOV; NOV-87-047549; EDB-87-053183
• Patent Number(s): US 4640362
• OSTI ID: 6790170
• Resource Relation: Patent File Date: Filed date 9 Apr 1985
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
DRILL PIPES
DESIGN
OPERATION
NATURAL GAS WELLS
WELL CASINGS
OIL WELLS
CUTTING
DRILL BITS
DRILLING FLUIDS
ELONGATION
JETS
NOZZLES
POSITIONING
PRESSURE DEPENDENCE
DRILLING EQUIPMENT
EQUIPMENT
FLUIDS
MACHINING
PIPES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing