Blow-out protector and fire control system for petroleum exploration

Patent · Tue Oct 06 00:00:00 EDT 1987

OSTI ID:5770786

Caraway, M F; Caraway, B L

A blow-out protector is described for an oil well comprising a housing having a vertical passageway therethrough for a Kelly. The housing has a lower end adapter flange to be connected to a well casing, an elastomeric body having an opening for the Kelly and carried on the Kelly for providing sealing contact with the Kelly and housing passageway, a catch ring secured to the Kelly and having a surface defined by a given diameter, a compressor ring plate positioned below the elastomeric body on the Kelly, means on an interior of the housing having a given diameter and preventing the compressor ring plate from falling down and yet providing engagement with the surface of the catch ring, the compressor ring plate having a hole for passage of the Kelly drive-mechanism for the drill pipe, the catch ring on the Kelly positioned below the compressor plate. The diameter of the catch ring is smaller than the diameter of the interior means on the housing so that when the Kelly is pulled up the catch ring will contact and force the compressor ring plate against the elastomeric body and force the elastomeric body into tight contact with both the Kelly and the housing thus sealing the space between the Kelly and the housing against a blow-out.

• Assignee: Fire-Fox International, Inc., Hinton, WV
• Patent Number(s): US 4697639
• OSTI ID: 5770786
• Resource Relation: Patent File Date: Filed date 14 Apr 1986
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
BLOWOUT PREVENTERS
DESIGN
COMPRESSORS
DRILL PIPES
ELASTOMERS
FIRE PREVENTION
FLANGES
NATURAL GAS WELLS
OIL WELLS
SEALS
DRILLING EQUIPMENT
EQUIPMENT
PIPES
POLYMERS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing