Method and apparatus for conducting wireline operations during blowout conditions in oil and gas wells
Patent
·
OSTI ID:5614125
A method and apparatus for conducting wireline operations in oil and gas wells under blowout conditions is disclosed, wherein a releasable annular wireline blowout preventer is provided, whereby wireline operations may be conducted under normal operating conditions by only using a short riser and a releasable annular wireline blowout preventer. Under blowout conditions, a second riser may be attached to the releasable annular wireline blowout preventer to quickly enable a wireline suspended tool to be safely removed from the well, along with the releasable wireline seal assembly means of the blowout preventer.
- Assignee:
- Schlumberger Technology Corp
- Patent Number(s):
- US 4307783
- OSTI ID:
- 5614125
- Country of Publication:
- United States
- Language:
- English
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