Method of and apparatus for protecting downhole equipment

Patent Application · Tue Aug 13 00:00:00 EDT 1991

OSTI ID:5799421

Taylor, W M; Hynes, J H; Theiss, D H

This patent describes the method of protecting well equipment from abnormal pressures in a downhole location. It comprises securing a volume compensating material to a portion of the well equipment so that the volume compensating material is exposed to well pressures at the down hole location, the well equipment including an annular seal having an upper metal seal lip, a lower metal seal lip and an intermediate resilient seal ring with a recess in the exterior surface of the resilient seal ring; the volume compensating material being structured for providing sufficient resistance to withstand normal head pressures within the downhole location but allowing rupture responsive to pressures above such normal head pressures, the volume compensating material is provided in the recess in the surface of the resilient seal ring, and lowering the well equipment in the well to the downhole location.

• Assignee: Cooper Industries Inc., Houston, TX (USA)
• Application Number: PPN: US 7-458951
• OSTI ID: 5799421
• Resource Relation: Patent File Date: 29 Dec 1989
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
47 OTHER INSTRUMENTATION
OIL WELLS
DRILLING EQUIPMENT
EQUIPMENT PROTECTION DEVICES
SERVICE LIFE
WELLHEADS
EQUIPMENT
WELLS
020200* - Petroleum- Reserves
Geology
& Exploration
440400 - Well Logging Instrumentation