US3379245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tended drilling platform for multiwell subsurface completion
Assignee: Mobil Oil AS
•
Filing: 1966-05-17
•
Granted: 1968-04-23
•
Expires: 1986-05-17
Abstract
No abstract record available.
Inventors
- 👤 William F Manning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:55
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; E21B43/017; E21B15/00; E21B15/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN THE PRODUCTION OF OFFSHORE OIL AND/OR GAS, A BOTTOM-SUPPORTED DRILLING AND PRODUCTION PLATFORM COMPRISING A LOWER PRODUCTION SUPPORT SECTION ADAPTED TO BE SUBMERGED COMPLETELY WHEN SUPPORTED ON THE MARINE BOTTOM AT A DRILLING SITE AND AN UPPER DRILLING SUPPORT SECTION ADAPTED TO BE SUPPORTED ON SAID PRODUCTION SUPPORT SECTION AND TO EXTEND ABOVE THE SURFACE OF THE BODY OF WATER WHEN AT SAID DRILLING SITE; MEANS FOR SUPPORTING PRODUCTION WELLHEADS, OF WELLS DRILLED FROM SAID UPPER DRILLING SECTION, ON SAID LOWER PRODUCTION SECTION BENEATH THE SURFACE OF A BODY OF WATER AT DIVING DEPTH; MEANS FOR SUPPORTING DRILLING EQUIPMENT ON SAID UPPER DRILLING SUPPORT SECTION ABOVE THE SURFACE OF SAID BODY OF WATER; AND MEANS FOR RELEASABLY MOUNTING SAID UPPER DRILLING SUPPORT SECTION ON SAID LOWER PRODUCTION SUPPORT SECTION.
Claim 2
Dependent Claim
130 words
IN THE PRODUCTION OF OFFSHORE OIL AND/OR GAS, A BOTTOM-SUPPORTED DRILLING AND PRODUCTION PLATFORM COMPRISING A LOWER PRODUCTION SUPPORT SECTION ADAPTED TO BE SUBMERGED COMPLETELY WHEN SUPPORTED ON THE MARINE BOTTOM AT A DRILLING SITE AND AN UPPER DRILLING SUPPORT SECTION ADAPTED TO BE SUPPORTED ON SAID PRODUCTION SUPPORT SECTION AND TO EXTEND ABOVE THE SURFACE OF THE BODY OF WATER WHEN AT SAID DRILLING SITE; MEANS FOR SUPPORTING PRODUCTION WELLHEADS, OF WELLS DRILLED FROM SAID UPPER DRILLING SECTION, ON SAID LOWER PRODUCTION SECTION BENEATH THE SURFACE OF A BODY OF WATER AT DIVING DEPTH; MEANS FOR SUPPORTING DRILLING EQUIPMENT ON SAID UPPER DRILLING SUPPORT SECTION ABOVE THE SURFACE OF SAID BODY OF WATER; AND MEANS FOR RELEASABLY MOUNTING SAID UPPER DRILLING SUPPORT SECTION ON SAID LOWER PRODUCTION SUPPORT SECTION.
References Cited (Backward Citations)
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US2756021A
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US3004612A
Cited
US2959016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |