Well casing float shoe or collar

Patent · Tue Aug 06 00:00:00 EDT 1985

OSTI ID:6359541

Kaufman, H J

A well casing float shoe which is adapted for a variety of well installations consists of a tubular metal shoe member filled with cementitious material having a longitudinal bore surrounding and securing in place a tubular metal sleeve. The metal sleeve is threaded at the top and bottom ends to receive a variety of sizes and types of check valves. A well casing float collar has the same construction, but the tubular shoe member is replaced with a tubular metal collar with threaded connections both above and below the cementitious filler material.

• Assignee: EDB-86-000527
• Patent Number(s): US 4532995
• OSTI ID: 6359541
• Resource Relation: Patent Priority Date: Priority date 17 Aug 1983, United Arab Emirates; Other Information: PAT-APPL-523842
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
SLEEVES
DESIGN
WELL CASINGS
CEMENTS
FILLERS
FLOTATION
METALS
NATURAL GAS WELLS
OIL WELLS
THREADED JOINTS
VALVES
BUILDING MATERIALS
CONTROL EQUIPMENT
ELEMENTS
EQUIPMENT
FLOW REGULATORS
JOINTS
MATERIALS
SEPARATION PROCESSES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing