US3590407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel tanker floating storage system
Assignee: Mobil Oil AS
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Filing: 1968-11-13
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Granted: 1971-07-06
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Expires: 1988-11-13
Abstract
Abstract The specification discloses a fluid storage system which includes a floating storage vessel having a swivel assembly mounted in its bow structure. The stationary core of the swivel assembly is moored to the water bottom by means of anchor lines extending through hawse tubes, while the storage structure is free to pivot about the stationary core in response to the combined forces of wind and water. Mounted centrally in a hollow portion of the stationary core of the swivel assembly is a liquid-gas separator unit. The liquid and gas outputs of the separator unit pass through swivel joints to the storage tanks of the floating structure. The separator unit comprises a main pressure vessel and a surge vessel which absorbs shock loads from the riser flowlines.
Inventors
- 👤 Vintila Bratianu
- 👤 Lewis A Rupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; E21B43/0107; B; B63; B63B; B63B21/00; B63B21/50; B63B21/507; B63B35/00; B63B35/44; B63B35/4413; E21B43/34; E21B43/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A system for producing and storing fluid minerals underlying a body of water, comprising: a. a floating storage structure having i. a ship-shaped hull, ii. a fluid storage tank in said hull, and iii. a swivel assembly positioned along the longitudinal center line and in the forward 20 percent of the length of the structure, the swivel assembly including a stationary core journaled in a vertical well in the floating storage structure; b. anchoring means secured to said stationary core of said swivel assembly and extending to the floor of the body of water, thereby permitting said floating storage structure to rotate freely through 360* about a substantially vertical axis in response to wind and water forces; c. a supply flowline extending up through the body of water; d. a separator unit having an inlet and at least one outlet, said separator unit mounted in said stationary core of said swivel assembly and having said inlet connected to said supply flowline, said separator unit being adapted to separate the fluid flowing through said supply flowline into its liquid and gaseous components and reduced the pressure thereof; e. a storage flowline having one end in communication with said storage tank; and f. a swivel means rotatably coupling the other end of said storage flowline with said at least one outline of said separator unit.
Claim 2
Independent Claim
223 words
A system for producing and storing fluid minerals underlying a body of water, comprising: a. a floating storage structure having i. a ship-shaped hull, ii. a fluid storage tank in said hull, and iii. a swivel assembly positioned along the longitudinal center line and in the forward 20 percent of the length of the structure, the swivel assembly including a stationary core journaled in a vertical well in the floating storage structure; b. anchoring means secured to said stationary core of said swivel assembly and extending to the floor of the body of water, thereby permitting said floating storage structure to rotate freely through 360* about a substantially vertical axis in response to wind and water forces; c. a supply flowline extending up through the body of water; d. a separator unit having an inlet and at least one outlet, said separator unit mounted in said stationary core of said swivel assembly and having said inlet connected to said supply flowline, said separator unit being adapted to separate the fluid flowing through said supply flowline into its liquid and gaseous components and reduced the pressure thereof; e. a storage flowline having one end in communication with said storage tank; and f. a swivel means rotatably coupling the other end of said storage flowline with said at least one outline of said separator unit.
References Cited (Backward Citations)
US3407768A
Cited
US3472032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |