US3802209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained drill ship
Assignee: Individual
•
Filing: 1972-09-25
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Granted: 1974-04-09
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Expires: 1992-09-25
Abstract
Abstract A self-contained, multi-purpose drill ship including means for drilling and completing to production an offshore oil well without the use of additional vessels or equipment.
Inventors
- 👤 C Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:36
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/12; E21B7/128; B; B63; B63B; B63B35/00; B63B35/003; E21B15/00; E21B15/02; F; F16; F16L; F16L1/00; F16L1/12; F16L1/20; F16L1/202
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
A sElf-contained, multi-purpose offshore drill and well completion vessel, comprising: a floating vessel having a central opening therein for drilling a well through the vessel; side drill means mounted with said floating vessel for completing a well over a side of said vessel; an oil well derrick positioned on the deck of said vessel over said central opening; means mounting said derrick for movement between said central opening and said side drill means; and pipe laying means for laying a flow line from a completed well whereby an offshore well is drilled and brought to production by said vessel.
Claim 2
Dependent Claim
99 words
A sElf-contained, multi-purpose offshore drill and well completion vessel, comprising: a floating vessel having a central opening therein for drilling a well through the vessel; side drill means mounted with said floating vessel for completing a well over a side of said vessel; an oil well derrick positioned on the deck of said vessel over said central opening; means mounting said derrick for movement between said central opening and said side drill means; and pipe laying means for laying a flow line from a completed well whereby an offshore well is drilled and brought to production by said vessel.
Claim 3
Dependent Claim
14 words
The structure set forth in claim 1, including: tender-platform means for serving a platform.
Claim 4
Dependent Claim
30 words
The structure set forth in claim 1, including: derrick barge means for operating said vessel as a derrick barge for loading and unloading platform and drilling equipment or the like.
Claim 5
Dependent Claim
24 words
The structure set forth in claim 1, wherein: said side drill means includes means for drilling a well over the side of said vessel.
Claim 6
Dependent Claim
25 words
The structure set forth in claim 1, including: a crane located on said vessel, said crane having sufficient boom to provide an oil well derrick.
Claim 7
Dependent Claim
30 words
The structure set forth in claim 1, wherein said pipe laying means includes: a welding station for welding pipe lengths together; and means for lowering said pipe into the water.
Claim 8
Dependent Claim
18 words
The structure set forth in claim 2, wherein said tender-platform means includes: drilling fluid storage and pumping facilities.
Claim 9
Dependent Claim
30 words
The structure set forth in claim 1, wherein: said side drill means includes a recess in a side of said vessel; and means for mounting a derrick over said recess.
Claim 10
Dependent Claim
35 words
The structure set forth in claim 1, including tender-platform means for serving a platform; and derrick barge means for operating said vessel as a derrick barge for loading and unloading drilling equipment or the like.
Claim 11
Dependent Claim
14 words
The structure set forth in claim 1, including: pipe rack means for storing pipe.
Claim 12
Dependent Claim
35 words
The structure set forth in claim 5, including: said first-mentioned crane being positioned at approximately the middle of said vessel; and a second crane positioned between said first-mentioned crane and the bow of said vessel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |