FR2016390A1 - - Google Patents
Info
- Publication number
- FR2016390A1 FR2016390A1 FR6929054A FR6929054A FR2016390A1 FR 2016390 A1 FR2016390 A1 FR 2016390A1 FR 6929054 A FR6929054 A FR 6929054A FR 6929054 A FR6929054 A FR 6929054A FR 2016390 A1 FR2016390 A1 FR 2016390A1
- Authority
- FR
- France
- Prior art keywords
- vessel
- pipe
- heading
- pipe support
- route
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
- F16L1/18—Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
- F16L1/202—Accessories therefor, e.g. floats, weights fixed on or to vessels
- F16L1/203—Accessories therefor, e.g. floats, weights fixed on or to vessels the pipes being wound spirally prior to laying
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/02—Control of position or course in two dimensions
- G05D1/0206—Control of position or course in two dimensions specially adapted to water vehicles
Abstract
1,250,068. Laying pipes underwater. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 25 Aug., 1969 [26 Aug., 1968], No. 42144/69. Heading F2P. In laying a pipe-line along a preselected route on the floor of a body of water from a pipe-laying vessel having a laterally rigid or a hinged segmented laterally flexible pipe support structure extending outboard of the vessel for directing the pipe-line into the water, the loads imposed on the pipe support structure are sensed, the vessel heading is turned in dependence of the load sensed to reduce the loads on the pipe support and the vessel is moved along the preselected route while maintaining the vessel heading in the turned attitude. The adjustments in vessel heading may be carried out automatically. The load sensed may be the sideways force on the pipe support near its outer end and/or the bending moment at the inner or outer end of the pipe support. The vessel heading may be turned sufficiently to substantially eliminate the stress in the pipe or to reverse the bending moment in the pipe-line at the tip of the pipe support. The loads may be caused by transverse water currents or by misalignment of the vessel and the pipe support with the pipe-line already laid. In a preferred method the difference between the measured force and a desired force is used to generate a heading error signal proportional thereto, the difference between the tension in the pipe and a desired tension generates a tension error signal, the deviation of the vessel from the desired route generates a route error signal and these signals are combined and applied to vessel positioning means in such a manner to turn and/or move the vessel so as to restore the various values to the desired values and hence the error signals to zero and at the same time the timing and the rate of vessel move-up along the route is controlled by controlling the timing and rate at which the pipe is allowed to be payed out or reeled in. The vessel positioning means may consist of a number of rotatable thrust units suitably arranged either with or without conventional propulsion units or a plurality of anchors arranged around the vessel with controllable winches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75530468A | 1968-08-26 | 1968-08-26 | |
| US77196468A | 1968-10-30 | 1968-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2016390A1 true FR2016390A1 (en) | 1970-05-08 |
Family
ID=27116065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6929054A Withdrawn FR2016390A1 (en) | 1968-08-26 | 1969-08-25 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4940180B1 (en) |
| DE (1) | DE1943148A1 (en) |
| FR (1) | FR2016390A1 (en) |
| GB (1) | GB1250068A (en) |
| NL (1) | NL6912916A (en) |
| NO (1) | NO135265C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54121400A (en) * | 1978-03-14 | 1979-09-20 | Daifuku Co Ltd | Radioactive waste storage facility |
| BRPI0608330A2 (en) | 2005-05-05 | 2009-12-29 | Acergy France Sa | long-haul towing and submarine installation |
-
1969
- 1969-08-25 NL NL6912916A patent/NL6912916A/xx unknown
- 1969-08-25 FR FR6929054A patent/FR2016390A1/fr not_active Withdrawn
- 1969-08-25 NO NO3416/69A patent/NO135265C/no unknown
- 1969-08-25 GB GB1250068D patent/GB1250068A/en not_active Expired
- 1969-08-25 DE DE19691943148 patent/DE1943148A1/en active Pending
- 1969-08-25 JP JP44066814A patent/JPS4940180B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6912916A (en) | 1970-03-02 |
| NO135265C (en) | 1977-03-09 |
| JPS4940180B1 (en) | 1974-10-31 |
| DE1943148A1 (en) | 1970-03-05 |
| NO135265B (en) | 1976-11-29 |
| GB1250068A (en) | 1971-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |