US3552903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subsea production satellite
Assignee: Mobil Oil AS
•
Filing: 1968-06-28
•
Granted: 1971-01-05
•
Expires: 1988-06-28
Abstract
Abstract THE SPECIFICATION DISCHLOSES A SUBSEA PRODUCTION SATELLITE HAVING A WATERTIGHT SHEEL WITH WELLHEAD CYLINDERS EXTENDING VERTICALLY THERETHROUGH. AFTER THE SATELLITE IS LEVELED ON A MARINE BOTTOM, WELLS ARE DRILLED THROUGH THE SATELLITE WELLHEAD CYLINDERS AND THE CASINGS HUNG THEREIN. THE WELLS ARE CONTROLLED AND PRODUCED DIRECTLY INTO THE SATELLITE THROUGH PORTS IN THE WALLS OF THE WELLHEAD CYLINDERS WITHIN THE SATELLITE. A TRAVEL CHAMBER IS PROVIDED FOR TRANSPORTING PERSONNEL AND EQUIPMENT BETWEEN THE SATELLITE AND THE WATER SURFACE.
Inventors
- 👤 Robert D Townsend Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:31
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; E21B43/017; E21B33/00; E21B33/02; E21B33/03; E21B33/035
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |