CA1109277A - Apparatus for supporting pipes suspended over undulated sea beds, including at great depth - Google Patents
Apparatus for supporting pipes suspended over undulated sea beds, including at great depthInfo
- Publication number
- CA1109277A CA1109277A CA341,103A CA341103A CA1109277A CA 1109277 A CA1109277 A CA 1109277A CA 341103 A CA341103 A CA 341103A CA 1109277 A CA1109277 A CA 1109277A
- Authority
- CA
- Canada
- Prior art keywords
- container
- support
- service module
- pipe
- module
- 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.)
- Expired
Links
- 239000004568 cement Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 239000004576 sand Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- BHMLFPOTZYRDKA-IRXDYDNUSA-N (2s)-2-[(s)-(2-iodophenoxy)-phenylmethyl]morpholine Chemical compound IC1=CC=CC=C1O[C@@H](C=1C=CC=CC=1)[C@H]1OCCNC1 BHMLFPOTZYRDKA-IRXDYDNUSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- HCTVWSOKIJULET-LQDWTQKMSA-M phenoxymethylpenicillin potassium Chemical compound [K+].N([C@H]1[C@H]2SC([C@@H](N2C1=O)C([O-])=O)(C)C)C(=O)COC1=CC=CC=C1 HCTVWSOKIJULET-LQDWTQKMSA-M 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 0.000 description 1
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
- F16L1/20—Accessories therefor, e.g. floats or weights
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Supports For Pipes And Cables (AREA)
- Electric Cable Installation (AREA)
- Revetment (AREA)
- Earth Drilling (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
ABSTRACT OF THE DISCLOSURES:
An apparatus for supporting a pipe suspended over an undulated sea bed. The apparatus comprises a support module formed by a properly shaped cushion having at one end a hooking lug and at the other end a hose provided with a non-return valve and connected through a quick connection and release coupling to a flexible outlet pipe of a container full of cement, which is supported in a recoverable service module consisting of a casing connected to a ship by a support cable.
There are provided means for injecting liquid cement into the support module from the container of the service module.
An apparatus for supporting a pipe suspended over an undulated sea bed. The apparatus comprises a support module formed by a properly shaped cushion having at one end a hooking lug and at the other end a hose provided with a non-return valve and connected through a quick connection and release coupling to a flexible outlet pipe of a container full of cement, which is supported in a recoverable service module consisting of a casing connected to a ship by a support cable.
There are provided means for injecting liquid cement into the support module from the container of the service module.
Description
i This invention relates to an apparatus which enables an effective support for a pipe suspended over an undulated sea bed, including at a great depth~ to be installed simply9 .reliably~ rapidly, accurately and economically. Said apparatus is particularly suitable for application to slight undulatlons in the sea bed~ i.e. when the distanoe between the suspended pipe to be supported and the sea bed is small~
`~` The sea bed notably comprises not only crevasses7 slopes ana upward projections due to the presence of underwater i 10 rocks~ but also slight undulations which give rise to depressions ~, .
~ over which a pipe laid on the sea bed is in a suspended state~
~J ~ . , In order to avoid the risk of unæesirable bending of the pipe, ~' it must be supported by suitable supports at said slight depressions.
In the present state of the art, there are various types of effective pipe supports~ but because of their large overall ~- si~e~ none of these known types can be used in the case in - question in which the distance between the suspended pipe and the sea bed at the depression is very small, and can be of the order of just a few tens of centimetres. In this respect~
the present state of the art offers methods whiçh are only of little value and efIectiveness~ such aæ stacking sand bags .
~L~LP3~;~ r~
under the pipe to be supported. Such a support, besides becoming weak as time passes because of the possible tears which can easily occur in the sand bags, cannot be applied at great depths but only at a depth suitable for a diver, as a diver is required to stack -the sand bags under the pipe to be supported.
The object of the present invention is to obviate the aforesaid drawback and provide an apparatus which enables an effective lasting support for a pipe suspended over an undulated sea bed to be formed simply and rapidly, even at dreat depths.
According to the present invention, there is provided an apparatus for supporting a pipe suspended over an undulated sea bed, the apparatus being lowered by a support ship by means of a support cable on to the sea bed in proximity to the suspended pipe to be supported, and being disposed by a submarine below said pipe at the point in which this latter is to be supported, comprising a support module or cushion constituted by a high strength synthetic fibre fabric envelope having a rectangular base and a saddle-shaped top, the base being provided at one end with a lug for its hooking to an articulated arm of said submarine for conveying the still empty support module under the pipe, and at the other end with a hose provided with a non-return valve and a connector for connecting to an instant connection and release coupling by means of a projecting control lever, this coupling being fitted to the free end of a flexible outlet pipe of a container full of liquid cement which is supported in a recoverable service module consisting of a casing connected to said depot ship by said support cable, means being provided for pressure-injecting into said support module thc liquid cement contained in said container of saLd recoverable service module.
The simplicit~ and economy of installa-tion and the effectiveness of such a support is immediately apparent.
In this respect, the support moduIe is inserted empty and therefore in a limp state under the pipe -to be supported, and can therefore be fitted however small the distance between said pipe and the sea bed. On then injecting liquid cement, said module can be inflated not only until it supports the pipe from below, but also to provide an upward force on the pipe so as to change its geometrical configuration at will.
As the pipe is supported in said saddle in the top of said support module, it is ensured tha-t the pipe can never accident-ally escape from said support because of stresses due to the sea currents or to internal tensile stress in the pipe.
Moreover, said support is stable with time as -the injec-ted liquid cement hardens after a short time, and therefore any tearing of the fabric envelope forming the support module does not damage the support. The installation economy is ensured by the fact that the most costly unit, i.e. the service module, can be completely recoveredonce released from the support module, to be reused in subsequent operations.
Finally, no depth limi-t is imposed on the apparatus as the few controls to be operated all consis-t ~ -~ 4~
~ .
of projecting levers which are easily accessible by a submarine, . and can also be operated remotely by a hydraulic control system mounted on the depot ship and connected to the service module `~ . by a hose fixed to ssid support cable.
According to a further characteristic of the present invention~ said means for pressure-injecti~g into said support ` module the liquid cement contained ~ n said container of said -. recoverable service module consist of a rotating pump_hydraulic - motor system operable by means of a projecting control lever~
this system being mounted on the base of sa~id container and connected to said flexible outlet pipe frcm said containerO
:~ According to a modification of the i~vention~ said means consist of a bank of compressed air cylin~ers which are supported by said service module and are connected to the top of said cont3iner by a conduit provided with a pressure reducer and . ~ , ~ - shutoff valve with a projecting control lever~
~~ : Qccording to a further modi~ication ~f the invention~ said ~ means consist of a compressed air system ~unted on said depot : ship and connected to the top of said cont~iner by a hose fixed to ~aid support cable and passing through ~ shutoff valve with ~:; P projecting control lever~
. With this latter method~ becallse of t~e inexhaustable quantity of compressed air available in pr~ctice, it is possible to fill a number of support modules simult~eously using the same service module~
Finally1 according to a preferred emb~diment of the invention, all the aforesaid means for pressure-injecting into .; . .
~ 5.
.
said support module the liquid cement contained in said container of said recoverable service moduPe are simultaneously ~present on said service module of the app~atus.
-The invention ~rill be more 3pparent ~ith reference to the accompanying drawing showing a preferred e~bodiment thereof ~-given b~ way of non-limiting example, in ~hat technical or constructional modifications~c~n be made ~hereto without A
leaving the scope of the present inventio~.
,In said drawing, the figure is a per~pective view of the `~`10 apparatus according to the invention sfter the support module '~ has been filledO
.. . . .
With reference to the figure~ the reEerence numeral 1 indicates the sea level and 2 the sea bed comprising the undulations 3 and 4 which form between th~ a depression 5 over which the laid pipe 6 is in a suspen~ed state. The depot ship 7 supports the service module ~ of the apparatus according to the invention by méans of th~ support cable 8~
- ~
Said module 9 consists of a casing 10 in ~ich is supported a metal contai~er 11 full of liquid cemen~. A bank of compressed air cylinders 12 supported by ~he casing 10 i~
connected to the top 13 of said container 11 by a conduit 14 provided with a shutoff v31ve 15 operable by means of the projecting control lever 16, and a pressu~e reducer 17 on -- which are fitted a- high pressure gauge 18 and a low pressure -25 gaugP 19. A hose 22 for the compressed ~ir from the depot 6hip 7 is slso connected to said top 13 o~ the container 11 - by a 6hutoff valve 20 operable by a proje~tin~ control lever -6.
21, this hose being fixed to said support csble 8.
At the base of the container 11 ther~ i6 mounted aæystem 23 constituted by a rotating pump ~perated by a hv~draulic motor controlled by the projecting lever 24, ~~ 5 this system being connected to a flexible outlet pipe 25 of optimum length for facilitating the op~ations of the submarine~ and terminating in a coupling.~6 which c8n be instantaneouslv~ connected and released by means of a ~ projecting control lever 27.
.` 10 The purpose of said coupling 26 is t~ removably connect sid recoverable service module 9 to the ~upport module 28 of the app~ratus according to the inventi~ Said support `! module 28 is an actual cushion constitute~ by a high strength ~` synthetic fibre fabric envelope having a ~ectsngular base 29 :JI, 15 and a saddle_shaped top ~0~ and provided ~t one end with a ... .
lug 31 for hooking it to the articulated ~m o~ a submarine~
and at the other end with a hose 32 fitt~ with a non~return valve 33 ~nd a connector for connecting ~ said coupling 26.
~he operation of the appar~tus is as ollows~
The apparatus constituted by the serw~ce module 9 to which the support module 28 is coupled is lower~ from the depot ship 7 by the support cable 8 on to the s~a~bed 2 in proximit~
of the pipe 6 to be supported~ A submar~ne hooks its articulated arm to the lug 31 and positions the still empty and therefore limp support module 28 (in the fi~lre sa.i~ condition is represented by the dashed line 34) undern~ath the pipe at the precise point in which it is to be suppor&ed. Still using the i f~r~3 7~ .
articulated arm of the submarine, one of the levers 24, 16 or 21 is operated to operate one of the three systems provided for injecting the support module 28 with the liquid cement contained in the container 11. When the support module 28 has been filled with liquid cement until it accommodates . the pipe 6 in the saddle of its saddle top 30~ the articulated arm of the submarine then operate~ the lever 27 80 that the service module become6 separated from the support module and can be recovered by the depot ship~
The invention is not limited only to the aforegoingO
j ~ Thus~ instead of bei.ng operated mar~ually by the articulated ~ arm of a submarine~ the levers 24~ 16~ 21 controlling the - systems for injecting liquid cement into the support module 3 ` and the lever 27 for releasing the service module from the : 15 support module can for example be operated automatically by remote control from the depot ship by using electro-hydraulic . - control elements of known type supplied from the ship by means of a further electric cable also fixed to said support - cable. - ~
.
`~` The sea bed notably comprises not only crevasses7 slopes ana upward projections due to the presence of underwater i 10 rocks~ but also slight undulations which give rise to depressions ~, .
~ over which a pipe laid on the sea bed is in a suspended state~
~J ~ . , In order to avoid the risk of unæesirable bending of the pipe, ~' it must be supported by suitable supports at said slight depressions.
In the present state of the art, there are various types of effective pipe supports~ but because of their large overall ~- si~e~ none of these known types can be used in the case in - question in which the distance between the suspended pipe and the sea bed at the depression is very small, and can be of the order of just a few tens of centimetres. In this respect~
the present state of the art offers methods whiçh are only of little value and efIectiveness~ such aæ stacking sand bags .
~L~LP3~;~ r~
under the pipe to be supported. Such a support, besides becoming weak as time passes because of the possible tears which can easily occur in the sand bags, cannot be applied at great depths but only at a depth suitable for a diver, as a diver is required to stack -the sand bags under the pipe to be supported.
The object of the present invention is to obviate the aforesaid drawback and provide an apparatus which enables an effective lasting support for a pipe suspended over an undulated sea bed to be formed simply and rapidly, even at dreat depths.
According to the present invention, there is provided an apparatus for supporting a pipe suspended over an undulated sea bed, the apparatus being lowered by a support ship by means of a support cable on to the sea bed in proximity to the suspended pipe to be supported, and being disposed by a submarine below said pipe at the point in which this latter is to be supported, comprising a support module or cushion constituted by a high strength synthetic fibre fabric envelope having a rectangular base and a saddle-shaped top, the base being provided at one end with a lug for its hooking to an articulated arm of said submarine for conveying the still empty support module under the pipe, and at the other end with a hose provided with a non-return valve and a connector for connecting to an instant connection and release coupling by means of a projecting control lever, this coupling being fitted to the free end of a flexible outlet pipe of a container full of liquid cement which is supported in a recoverable service module consisting of a casing connected to said depot ship by said support cable, means being provided for pressure-injecting into said support module thc liquid cement contained in said container of saLd recoverable service module.
The simplicit~ and economy of installa-tion and the effectiveness of such a support is immediately apparent.
In this respect, the support moduIe is inserted empty and therefore in a limp state under the pipe -to be supported, and can therefore be fitted however small the distance between said pipe and the sea bed. On then injecting liquid cement, said module can be inflated not only until it supports the pipe from below, but also to provide an upward force on the pipe so as to change its geometrical configuration at will.
As the pipe is supported in said saddle in the top of said support module, it is ensured tha-t the pipe can never accident-ally escape from said support because of stresses due to the sea currents or to internal tensile stress in the pipe.
Moreover, said support is stable with time as -the injec-ted liquid cement hardens after a short time, and therefore any tearing of the fabric envelope forming the support module does not damage the support. The installation economy is ensured by the fact that the most costly unit, i.e. the service module, can be completely recoveredonce released from the support module, to be reused in subsequent operations.
Finally, no depth limi-t is imposed on the apparatus as the few controls to be operated all consis-t ~ -~ 4~
~ .
of projecting levers which are easily accessible by a submarine, . and can also be operated remotely by a hydraulic control system mounted on the depot ship and connected to the service module `~ . by a hose fixed to ssid support cable.
According to a further characteristic of the present invention~ said means for pressure-injecti~g into said support ` module the liquid cement contained ~ n said container of said -. recoverable service module consist of a rotating pump_hydraulic - motor system operable by means of a projecting control lever~
this system being mounted on the base of sa~id container and connected to said flexible outlet pipe frcm said containerO
:~ According to a modification of the i~vention~ said means consist of a bank of compressed air cylin~ers which are supported by said service module and are connected to the top of said cont3iner by a conduit provided with a pressure reducer and . ~ , ~ - shutoff valve with a projecting control lever~
~~ : Qccording to a further modi~ication ~f the invention~ said ~ means consist of a compressed air system ~unted on said depot : ship and connected to the top of said cont~iner by a hose fixed to ~aid support cable and passing through ~ shutoff valve with ~:; P projecting control lever~
. With this latter method~ becallse of t~e inexhaustable quantity of compressed air available in pr~ctice, it is possible to fill a number of support modules simult~eously using the same service module~
Finally1 according to a preferred emb~diment of the invention, all the aforesaid means for pressure-injecting into .; . .
~ 5.
.
said support module the liquid cement contained in said container of said recoverable service moduPe are simultaneously ~present on said service module of the app~atus.
-The invention ~rill be more 3pparent ~ith reference to the accompanying drawing showing a preferred e~bodiment thereof ~-given b~ way of non-limiting example, in ~hat technical or constructional modifications~c~n be made ~hereto without A
leaving the scope of the present inventio~.
,In said drawing, the figure is a per~pective view of the `~`10 apparatus according to the invention sfter the support module '~ has been filledO
.. . . .
With reference to the figure~ the reEerence numeral 1 indicates the sea level and 2 the sea bed comprising the undulations 3 and 4 which form between th~ a depression 5 over which the laid pipe 6 is in a suspen~ed state. The depot ship 7 supports the service module ~ of the apparatus according to the invention by méans of th~ support cable 8~
- ~
Said module 9 consists of a casing 10 in ~ich is supported a metal contai~er 11 full of liquid cemen~. A bank of compressed air cylinders 12 supported by ~he casing 10 i~
connected to the top 13 of said container 11 by a conduit 14 provided with a shutoff v31ve 15 operable by means of the projecting control lever 16, and a pressu~e reducer 17 on -- which are fitted a- high pressure gauge 18 and a low pressure -25 gaugP 19. A hose 22 for the compressed ~ir from the depot 6hip 7 is slso connected to said top 13 o~ the container 11 - by a 6hutoff valve 20 operable by a proje~tin~ control lever -6.
21, this hose being fixed to said support csble 8.
At the base of the container 11 ther~ i6 mounted aæystem 23 constituted by a rotating pump ~perated by a hv~draulic motor controlled by the projecting lever 24, ~~ 5 this system being connected to a flexible outlet pipe 25 of optimum length for facilitating the op~ations of the submarine~ and terminating in a coupling.~6 which c8n be instantaneouslv~ connected and released by means of a ~ projecting control lever 27.
.` 10 The purpose of said coupling 26 is t~ removably connect sid recoverable service module 9 to the ~upport module 28 of the app~ratus according to the inventi~ Said support `! module 28 is an actual cushion constitute~ by a high strength ~` synthetic fibre fabric envelope having a ~ectsngular base 29 :JI, 15 and a saddle_shaped top ~0~ and provided ~t one end with a ... .
lug 31 for hooking it to the articulated ~m o~ a submarine~
and at the other end with a hose 32 fitt~ with a non~return valve 33 ~nd a connector for connecting ~ said coupling 26.
~he operation of the appar~tus is as ollows~
The apparatus constituted by the serw~ce module 9 to which the support module 28 is coupled is lower~ from the depot ship 7 by the support cable 8 on to the s~a~bed 2 in proximit~
of the pipe 6 to be supported~ A submar~ne hooks its articulated arm to the lug 31 and positions the still empty and therefore limp support module 28 (in the fi~lre sa.i~ condition is represented by the dashed line 34) undern~ath the pipe at the precise point in which it is to be suppor&ed. Still using the i f~r~3 7~ .
articulated arm of the submarine, one of the levers 24, 16 or 21 is operated to operate one of the three systems provided for injecting the support module 28 with the liquid cement contained in the container 11. When the support module 28 has been filled with liquid cement until it accommodates . the pipe 6 in the saddle of its saddle top 30~ the articulated arm of the submarine then operate~ the lever 27 80 that the service module become6 separated from the support module and can be recovered by the depot ship~
The invention is not limited only to the aforegoingO
j ~ Thus~ instead of bei.ng operated mar~ually by the articulated ~ arm of a submarine~ the levers 24~ 16~ 21 controlling the - systems for injecting liquid cement into the support module 3 ` and the lever 27 for releasing the service module from the : 15 support module can for example be operated automatically by remote control from the depot ship by using electro-hydraulic . - control elements of known type supplied from the ship by means of a further electric cable also fixed to said support - cable. - ~
.
Claims (5)
1. An apparatus for supporting a pipe suspended over an undulated sea bed, said apparatus being lowered by a support ship by means of a support cable on to the sea bed in proximity to the suspended pipe to be supported, and being disposed by a submarine below said pipe at the point in which this latter is to be supported, comprising a support module or cushion constituted by a high strength synthetic fibre fabric envelope having a rectangular base and a saddle-shaped top, said base being provided at one end with a lug for its hooking to an articulated arm of said submarine for conveying said still empty support module under the pipe, and at the other end with a hose provided with a non-return valve and a connector for connecting to an instant connection and release coupling by means of a projecting control lever, this coupling being fitted to the free end of a flexible outlet pipe of a container full of liquid cement which is supported in a recoverable service module consisting of a casing connected to said depot ship by said support cable, means being provided for pressure-injecting into said support module the liquid cement contained in said container of said recoverable service module.
2. An apparatus as claimed in claim 1, wherein said means for pressure injecting into said support module the liquid cement contained in said container of said recoverable service module comprise a rotating pump-hydraulic motor system operable by means of a projecting control lever, this system being mounted on the base of said container and connected to said flexible outlet pipe of said container.
3. An apparatus as claimed in claim 1, wherein said means for pressure-injecting into said support module the liquid cement contained in said container of said recover-able service module comprise a bank of compressed air cylinders which are supported by said service module and are connected to the top of said container by a conduit provided with a pressure reducer and a shutoff valve with a projecting control lever.
4. An apparatus as claimed in claim 1, wherein said means for pressure-injecting into said support module the liquid cement contained in said container of said recoverable service module comprise a compressed air system mounted on said depot ship and connected to the top of said container by a hose fixed to said support cable and passing through a shutoff valve with a projecting control lever.
5. An apparatus as claimed in claim 1, wherein said means for pressure-injecting into said support module the liquid cement contained in said container of said recover-able service module comprise a rotating pump-hydraulic motor system operable by means of a projecting control lever, this system being mounted on the base of said container and connected to said flexible outlet pipe of said container, a bank of compressed air cylinders which are supported by said service module and are connected to the top of said container by a conduit provided with a pressure reducer and a shutoff valve with a projecting control lever, and a compressed air system mounted on said depot ship and connected to the top of said container by a hose fixed to said support cable and passing through a shutoff valve with a projecting control lever.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT30488/78A IT1160284B (en) | 1978-12-04 | 1978-12-04 | EQUIPMENT FOR THE SUPPORT OF SUSPENDED PIPES ON CORRUGATED SEA BOTTOMS EVEN AT LARGE DEPTHS |
| IT30488A/78 | 1978-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1109277A true CA1109277A (en) | 1981-09-22 |
Family
ID=11229832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA341,103A Expired CA1109277A (en) | 1978-12-04 | 1979-12-03 | Apparatus for supporting pipes suspended over undulated sea beds, including at great depth |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5576279A (en) |
| AR (1) | AR224382A1 (en) |
| AU (1) | AU528408B2 (en) |
| BE (1) | BE880366A (en) |
| BR (1) | BR7907913A (en) |
| CA (1) | CA1109277A (en) |
| DE (1) | DE2948779C2 (en) |
| DK (1) | DK147952C (en) |
| ES (1) | ES487001A1 (en) |
| FR (1) | FR2443632A1 (en) |
| GB (1) | GB2036917B (en) |
| IE (1) | IE48918B1 (en) |
| IT (1) | IT1160284B (en) |
| NL (1) | NL178186C (en) |
| NO (1) | NO793853L (en) |
| NZ (1) | NZ192063A (en) |
| PT (1) | PT70534A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2476263B1 (en) * | 1980-02-15 | 1985-07-19 | Pronal Sa | INFLATABLE DEVICE FOR LIFTING A PIPE SUPPORTED BY AN AQUATIC BOTTOM AND METHOD OF IMPLEMENTATION |
| FR2488973B1 (en) * | 1980-08-22 | 1985-09-06 | Petroles Cie Francaise | METHOD AND DEVICE FOR INTERVENING ON AN UNDERWATER PIPE |
| CH674496A5 (en) * | 1987-10-22 | 1990-06-15 | Vsl Int Ag | Item-supporting equipment on water course bottom - temporarily grips item and holds cladding against underside for concrete injection |
| US5201610A (en) * | 1991-02-07 | 1993-04-13 | Diverless Systems, Inc. | Grout bag deployment pallet |
| GB2341409B (en) * | 1998-09-08 | 2000-11-01 | John Stephen Baross | Mechanical pipeline span prop with suction anchor foundation |
| GB9930492D0 (en) * | 1999-12-23 | 2000-02-16 | Saipem Spa | Improvements in and relating to laying of pipeline |
| US6435771B1 (en) * | 2000-11-27 | 2002-08-20 | Benton F. Baugh | Method for attaching subsea manifold to pipeline tee |
| WO2008023987A1 (en) * | 2006-08-22 | 2008-02-28 | Amek Holding As | A method, kit and device for installation of an inflatable sub sea structure |
| EP3033558A1 (en) * | 2013-08-13 | 2016-06-22 | Subcon Technologies Pty Ltd. | Method and system for supporting submerged structures |
| CN112554190B (en) * | 2020-12-22 | 2024-09-13 | 河海大学 | Construction equipment for protecting submarine pipeline by utilizing self-compaction cement soil |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1276468A (en) * | 1971-04-30 | 1972-06-01 | Sea & Land Pipelines | Stabilizing pipe lines |
| US3861158A (en) * | 1973-02-07 | 1975-01-21 | Regal Tool & Rubber | Submerged pipeline stabilization |
| DE2600519C3 (en) * | 1976-01-09 | 1979-06-13 | Mannesmann Ag, 4000 Duesseldorf | Procedure for laying pipelines |
| GB1585170A (en) * | 1976-10-30 | 1981-02-25 | Dunlop Ltd | Forming concrete structures for underwater pipelines |
| IT1078683B (en) * | 1977-01-18 | 1985-05-08 | Snam Progetti | ADJUSTABLE EQUIPMENT TO SUPPORT AND ASSUME A PREDETERMINED GEOMETRIC CONFIGURATION TO A PIPE INSTALLED IN HIGH BOTTOMS CORRESPONDING TO THE ACCIDENTALITY OF THE SEA BOTTOM |
-
1978
- 1978-12-04 IT IT30488/78A patent/IT1160284B/en active
-
1979
- 1979-11-07 NZ NZ192063A patent/NZ192063A/en unknown
- 1979-11-07 DK DK471379A patent/DK147952C/en not_active IP Right Cessation
- 1979-11-12 AU AU52725/79A patent/AU528408B2/en not_active Ceased
- 1979-11-14 GB GB7939435A patent/GB2036917B/en not_active Expired
- 1979-11-27 NO NO793853A patent/NO793853L/en unknown
- 1979-11-29 JP JP15370279A patent/JPS5576279A/en active Granted
- 1979-11-30 FR FR7929537A patent/FR2443632A1/en active Granted
- 1979-11-30 BE BE0/198371A patent/BE880366A/en not_active IP Right Cessation
- 1979-12-03 BR BR7907913A patent/BR7907913A/en unknown
- 1979-12-03 CA CA341,103A patent/CA1109277A/en not_active Expired
- 1979-12-03 IE IE2316/79A patent/IE48918B1/en unknown
- 1979-12-03 PT PT70534A patent/PT70534A/en unknown
- 1979-12-04 AR AR279155A patent/AR224382A1/en active
- 1979-12-04 NL NLAANVRAGE7908761,A patent/NL178186C/en not_active IP Right Cessation
- 1979-12-04 DE DE2948779A patent/DE2948779C2/en not_active Expired
- 1979-12-04 ES ES487001A patent/ES487001A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2443632A1 (en) | 1980-07-04 |
| AU5272579A (en) | 1980-06-12 |
| IT7830488A0 (en) | 1978-12-04 |
| AR224382A1 (en) | 1981-11-30 |
| BE880366A (en) | 1980-05-30 |
| DK147952C (en) | 1985-07-01 |
| NL178186B (en) | 1985-09-02 |
| NL7908761A (en) | 1980-06-06 |
| DE2948779A1 (en) | 1980-06-12 |
| DE2948779C2 (en) | 1982-10-21 |
| NL178186C (en) | 1986-02-03 |
| IE48918B1 (en) | 1985-06-12 |
| PT70534A (en) | 1980-01-01 |
| AU528408B2 (en) | 1983-04-28 |
| GB2036917B (en) | 1983-01-19 |
| IE792316L (en) | 1980-06-04 |
| BR7907913A (en) | 1980-06-24 |
| ES487001A1 (en) | 1980-06-16 |
| JPS5576279A (en) | 1980-06-09 |
| DK471379A (en) | 1980-06-05 |
| DK147952B (en) | 1985-01-14 |
| JPS6352275B2 (en) | 1988-10-18 |
| FR2443632B1 (en) | 1985-03-08 |
| IT1160284B (en) | 1987-03-11 |
| NZ192063A (en) | 1983-04-12 |
| GB2036917A (en) | 1980-07-02 |
| NO793853L (en) | 1980-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |