Patent US3313346A successfully refreshed from Google Patents.
US3313346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous tubing well working system
Assignee: Chevron USA Inc
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Filing: 1964-12-24
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Granted: 1967-04-11
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Expires: 1984-12-24
Abstract
No abstract record available.
Inventors
- 👤 Robert V Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:20
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/40; B65H75/42; B65H75/425; B65H75/44; B65H75/4481; B65H75/4484; B65H75/4489; E; E21; E21B; E21B19/00; E21B19/002; E21B19/08; E21B19/09; E21B19/22; E21B33/00; E21B33/02; E21B33/03; E21B33/068; E21B33/072; E21B43/00; E21B43/01; B65H2701/00; B65H2701/30; B65H2701/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
THE METHOD OF WORKING IN AN OFFSHORE WELL WITHOUT A DERRICK OR THE LIKE POSITIONED ABOVE THE WELLHEAD AND INDEPENDENT OF THE DIFFERENCE IN ELEVATION BETWEEN THE WELL PRODUCTION PLATFORM AND THE WATER SURFACE, WHICH COMPRISES THE STEPS OF FLOATING A WORK BOAT INTO PROXIMITY TO A PRODUCTION PLATFORM, AXIALLY ALIGNING A TUBING FEED MEANS WITH A WELLHEAD ON SAID PRODUCTION PLATFORM, UNWINDING A CONTINUOUS LENGTH OF TBING FROM A REEL ON SAID WORK PLATFORM, FORMING SAID UNWOUND LENGTH OF TUBING INTO AN UNRESTRAINED ARC EXTENDING FROM THE REEL INTO AXIAL ALIGNMENT WITH SAID TUBING FEED MEANS AND SAID WELLHEAD, INDEPENDENTLY CONTROLLING SAID TUBING FEED MEANS TO DRIVE SAID TUBING INTO SAID WELLHEAD AT A DESIRED FEED RATE, AND CONTROLLING THE UNWINDING RATE OF TUBING FROM SAID REEL TO MAINTAIN SAID UNRESTRAINED ARC OF SAID TUBING IN AXIAL ALIGNMENT WITH SAID WELLHEAD, SAID CONTROL BEING WITHIN PREDETERMINED LIMITS SO THAT KINKING AND STRETCHING OF SAID TUBING OVER SAID UNRESTRAINED ARC ARE AVOIDED DURING TRANSFER OF SAID TUBING BETWEEN SAID REEL AND SAID TUBING FEED MEANS AT SAID WELLHEAD.
Claim 2
Independent Claim
178 words
THE METHOD OF WORKING IN AN OFFSHORE WELL WITHOUT A DERRICK OR THE LIKE POSITIONED ABOVE THE WELLHEAD AND INDEPENDENT OF THE DIFFERENCE IN ELEVATION BETWEEN THE WELL PRODUCTION PLATFORM AND THE WATER SURFACE, WHICH COMPRISES THE STEPS OF FLOATING A WORK BOAT INTO PROXIMITY TO A PRODUCTION PLATFORM, AXIALLY ALIGNING A TUBING FEED MEANS WITH A WELLHEAD ON SAID PRODUCTION PLATFORM, UNWINDING A CONTINUOUS LENGTH OF TBING FROM A REEL ON SAID WORK PLATFORM, FORMING SAID UNWOUND LENGTH OF TUBING INTO AN UNRESTRAINED ARC EXTENDING FROM THE REEL INTO AXIAL ALIGNMENT WITH SAID TUBING FEED MEANS AND SAID WELLHEAD, INDEPENDENTLY CONTROLLING SAID TUBING FEED MEANS TO DRIVE SAID TUBING INTO SAID WELLHEAD AT A DESIRED FEED RATE, AND CONTROLLING THE UNWINDING RATE OF TUBING FROM SAID REEL TO MAINTAIN SAID UNRESTRAINED ARC OF SAID TUBING IN AXIAL ALIGNMENT WITH SAID WELLHEAD, SAID CONTROL BEING WITHIN PREDETERMINED LIMITS SO THAT KINKING AND STRETCHING OF SAID TUBING OVER SAID UNRESTRAINED ARC ARE AVOIDED DURING TRANSFER OF SAID TUBING BETWEEN SAID REEL AND SAID TUBING FEED MEANS AT SAID WELLHEAD.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |