US3740958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating and installing a submergible pipeline
Assignee: Individual
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Filing: 1971-01-19
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Granted: 1973-06-26
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Expires: 1991-01-19
Abstract
Abstract This disclosure pertains to an improved method of continuously fabricating pipe for use in the transmission of fluids, or other flowable materials, between locations separated by an aqueous body, such as a shore location and an off-shore well. The method includes transporting the constituent materials for fabricating the pipeline on a pipe laying barge to the site wherefrom the pipeline is to be installed, and continuously fabricating the pipe on the barge while simultaneously installing the pipe on, or within, the bed of the body of water to the site whereto the pipeline is to connect. The pipe itself is comprised of a foundation tube of an oil and gas resistant polymer suitably strengthened by a selective number of additional layers of wire, cable, metallic strips or sheets, other polymeric layers, or a combination thereof, as is necessary to withstand both the internal stresses imposed by the transmitted fluid, and the external stresses imposed by the installation or laying technique and the under-water situs wherein the pipeline is to be located.
Inventors
- 👤 S Cadwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:29
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/12; F16L9/133; B; B29; B29C; B29C48/00; B29C48/15; B29C48/151; B29C48/152; B29C48/153; F16L1/00; F16L1/12; F16L1/16; F16L1/18; F16L1/20; F16L1/202; F16L1/206; F16L9/121; B29C48/03; B29C48/09
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
215 words
A method of laying a submergible pipeline between first and second locations separated by an aqueous body comprising the steps of: congregating the constituent materials for the pipe on a pipe laying barge having a stinger assembly, said materials being nonself-supporting, continuous, and substantially weldless; positioning said pipe laying barge on the aqueous body at the first location; fabricating a self-supporting pipe or he like on the barge by assembling said constituent materials into a substantially continuous seamless tube; said fabricating step including providing a relatively thin walled continuous flexible foundation tube and installing support members on the exterior surface of said foundation tube; applying a continuous outer protective coating around said seamless tube; and simultaneously laying said pipe from said barge to the second location; said laying step including at least partially supporting said tube in the aqueous body between the barge and the bed thereof, said support members including wires or the like disposed longitudinally on said flexible tube and applying containing means around said wires or the like, said containing means including strips of metallic material spirally wound on the exterior of said wires, said fabricating step further including the step of providing an exterior coating around the exterior of said strips, said exterior coating being extruded after said strips are wound.
Claim 2
Independent Claim
215 words
A method of laying a submergible pipeline between first and second locations separated by an aqueous body comprising the steps of: congregating the constituent materials for the pipe on a pipe laying barge having a stinger assembly, said materials being nonself-supporting, continuous, and substantially weldless; positioning said pipe laying barge on the aqueous body at the first location; fabricating a self-supporting pipe or he like on the barge by assembling said constituent materials into a substantially continuous seamless tube; said fabricating step including providing a relatively thin walled continuous flexible foundation tube and installing support members on the exterior surface of said foundation tube; applying a continuous outer protective coating around said seamless tube; and simultaneously laying said pipe from said barge to the second location; said laying step including at least partially supporting said tube in the aqueous body between the barge and the bed thereof, said support members including wires or the like disposed longitudinally on said flexible tube and applying containing means around said wires or the like, said containing means including strips of metallic material spirally wound on the exterior of said wires, said fabricating step further including the step of providing an exterior coating around the exterior of said strips, said exterior coating being extruded after said strips are wound.
Claim 3
Independent Claim
161 words
A method of laying a submergible pipeline between first and second locations separated by an aqueous body comprising the steps of: congregating the constituent materials for the pipe on a pipe laying barge having a stinger assembly, said materials being nonself-supporting, continuous, and substantially weldless; positioning said pipe laying barge on the aqueous body at the first location; fabricating a self-supporting pipe or the like on the barge by assembling said constituent materials into a substantially continuous seamless tube; said fabricating step including providing a relatively thin walled continuous flexible foundation tube and installing support members on the exterior surface of said foundation Tube; applying a continuous outer protective coating around said seamless tube; and simultaneously laying said pipe from said barge to the second location; said laying step including at least partially supporting said tube in the aqueous body between the barge and the bed thereof, said fabricating step further including extruding the thin walled flexible tube on the barge.
Claim 4
Independent Claim
161 words
A method of laying a submergible pipeline between first and second locations separated by an aqueous body comprising the steps of: congregating the constituent materials for the pipe on a pipe laying barge having a stinger assembly, said materials being nonself-supporting, continuous, and substantially weldless; positioning said pipe laying barge on the aqueous body at the first location; fabricating a self-supporting pipe or the like on the barge by assembling said constituent materials into a substantially continuous seamless tube; said fabricating step including providing a relatively thin walled continuous flexible foundation tube and installing support members on the exterior surface of said foundation Tube; applying a continuous outer protective coating around said seamless tube; and simultaneously laying said pipe from said barge to the second location; said laying step including at least partially supporting said tube in the aqueous body between the barge and the bed thereof, said fabricating step further including extruding the thin walled flexible tube on the barge.
Claim 5
Independent Claim
208 words
A method of laying a submergible pipeline between first and second locations separated by an aqueous body comprising the steps of: congregating the constituent materials for the pipe on a pipe laying barge having a stinger assembly, said materials being nonself-supporting, continuous, and substantially weldless; positioning said pipe laying barge on the aqueous body at the first location; fabricating a self-supporting pipe or the like on the barge by assembling said constituent materials into a substantially continuous seamless tube; said fabricating step including providing a relatively thin walled continuous flexible foundation tube and installing support members on the exterior surface of said foundation tube; applying a continuous outer protective coating around said seamless tube; and simultaneously laying said pipe from said barge to the second location; said laying step including at least partially supporting said tube in the aqueous body between the barge and the bed thereof, said fabricating step including providing first strips of vulcanizable material, providing second strips of reinforced vulcanizable material, spiralling said first strips on a mandrel in a first direction, spiralling said second strips on said first strips in a second direction opposite to said first direction, said first and second spiralled strips forming the pipe or the like, and vulcanizing said strips.
Claim 6
Independent Claim
208 words
A method of laying a submergible pipeline between first and second locations separated by an aqueous body comprising the steps of: congregating the constituent materials for the pipe on a pipe laying barge having a stinger assembly, said materials being nonself-supporting, continuous, and substantially weldless; positioning said pipe laying barge on the aqueous body at the first location; fabricating a self-supporting pipe or the like on the barge by assembling said constituent materials into a substantially continuous seamless tube; said fabricating step including providing a relatively thin walled continuous flexible foundation tube and installing support members on the exterior surface of said foundation tube; applying a continuous outer protective coating around said seamless tube; and simultaneously laying said pipe from said barge to the second location; said laying step including at least partially supporting said tube in the aqueous body between the barge and the bed thereof, said fabricating step including providing first strips of vulcanizable material, providing second strips of reinforced vulcanizable material, spiralling said first strips on a mandrel in a first direction, spiralling said second strips on said first strips in a second direction opposite to said first direction, said first and second spiralled strips forming the pipe or the like, and vulcanizing said strips.
Claim 7
Independent Claim
137 words
A method of fabricating and laying submergible pipe on the bed of an aqueous body from a pipe laying barge comprising the steps of: positioning the barge on the aqueous body; congregating the constituent materials for the fabrication of pipe on the barge; fabricating a substantially continuous foundation tube of polymeric material; strengthening said foundation tube by adding additional metallic layers on said foundation tube; applying a corrosive resistant coating around said metallic layers; and directing the laminated pipe to the bed of the aqueous body, said directing step including supporting said pipe in the aqueous body from a first location proximate to said barge to a second location beneath the surface of the aqueous body, said strengthening step including adhesively wrapping a sheet of metallic material helically around the outer peripheral surface of said foundation tube.
Claim 8
Independent Claim
137 words
A method of fabricating and laying submergible pipe on the bed of an aqueous body from a pipe laying barge comprising the steps of: positioning the barge on the aqueous body; congregating the constituent materials for the fabrication of pipe on the barge; fabricating a substantially continuous foundation tube of polymeric material; strengthening said foundation tube by adding additional metallic layers on said foundation tube; applying a corrosive resistant coating around said metallic layers; and directing the laminated pipe to the bed of the aqueous body, said directing step including supporting said pipe in the aqueous body from a first location proximate to said barge to a second location beneath the surface of the aqueous body, said strengthening step including adhesively wrapping a sheet of metallic material helically around the outer peripheral surface of said foundation tube.
Claim 9
Dependent Claim
24 words
The method of claim 4 wherein said strengthening step further includes spirally wrapping additional strips of metallic material around said sheet of metallic material.
Claim 10
Dependent Claim
20 words
The method of claim 4 wherein said strengthening step includes wrapping tensioning strands spirally around said sheet of metallic material.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |