Abstract: A valve (120) for controlling fluid flow therethrough in downhole applications is disclosed. The valve (120) comprises a valve housing having a valve closure mechanism (122) and a valve seat (124) disposed therein. The valve closure mechanism (122) has sealing surface (128) and a secondary load bearing surface (142). The valve seat (124) has a valve seat sealing surface (126) that mates with the sealing surface (128) of the valve closure mechanism (122). The secondary load bearing surface (142) of the valve closure mechanism (122) mates with a valve secondary load bearing surface (134) which may be supported by the valve seat (124).
Type:
Application
Filed:
April 17, 2001
Publication date:
September 20, 2001
Applicant:
Halliburton Enrgy Services, Inc.
Inventors:
Glenn Ray Davis, Stuart Morton Dennistoun