Blowout preventer
Patent
·
OSTI ID:6557623
This patent describes apparatus for use with a blowout preventer. The blowout preventer having a housing with a bore therethrough and longitudinally extending chambers which intersect the bore with rams reciprocable within the chambers between a first position for opening the bore and a second position for closing the bore to divide the bore into zones above and below the rams.
- Assignee:
- Drexel Oilfield Services Inc., Conroe, TX (USA)
- Patent Number(s):
- A; US 4943031
- Application Number:
- PPN: US s 7-393901
- OSTI ID:
- 6557623
- Country of Publication:
- United States
- Language:
- English
Similar Records
Actuator for wireline blowout preventer
Hydraulically operated valves
Hydraulically operated valves
Patent
·
Tue Jul 29 00:00:00 EDT 1980
·
OSTI ID:6845046
Hydraulically operated valves
Patent
·
Tue May 20 00:00:00 EDT 1986
·
OSTI ID:5475405
Hydraulically operated valves
Patent
·
Mon Apr 14 23:00:00 EST 1986
·
OSTI ID:5516883