CN114294480A - Fixture for limiting bidirectional movement of deepwater sea pipe along axis - Google Patents
Fixture for limiting bidirectional movement of deepwater sea pipe along axis Download PDFInfo
- Publication number
- CN114294480A CN114294480A CN202111512004.4A CN202111512004A CN114294480A CN 114294480 A CN114294480 A CN 114294480A CN 202111512004 A CN202111512004 A CN 202111512004A CN 114294480 A CN114294480 A CN 114294480A
- Authority
- CN
- China
- Prior art keywords
- fixture
- clamp
- limiting
- sea pipe
- deepwater
- 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.)
- Pending
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The invention discloses a fixture for limiting a deepwater sea pipe to move in two directions along an axis, which is used for being installed on a sea pipe joint, wherein the fixture comprises an upper fixture and a lower fixture matched with the upper fixture, the upper fixture and the lower fixture are both provided with semicircular curved surfaces, and the curved surface of the upper fixture and the curved surface of the lower fixture form a fixing surface capable of surrounding the outer wall of a pipeline; wing plates which are parallel to each other are arranged on two sides of the curved surfaces of the upper fixture and the lower fixture, the baffle plates fixed on the wing plates are arranged at two ends of the curved surfaces of the upper fixture and the lower fixture, the baffle plates are vertically connected to one end of the supporting plate arranged on the central axis of the curved surfaces, and the other end of the supporting plate is vertically connected to the reinforcing plate arranged on the curved surfaces and fixed on the wing plates; by being installed in a special marine vessel joint, the marine vessel joint acts as an extra tension bearing and transmitting part, and provides tension opposite to the moving direction when the marine vessel moves in different directions, thereby limiting the excessive movement of the marine vessel.
Description
Technical Field
The invention relates to the technical field of deep-water submarine sea pipe riser engineering, in particular to a clamp for limiting the bidirectional movement of a deep-water sea pipe along an axis.
Background
The deep-water sea pipe belongs to the field of deep-water ocean engineering (water depth is more than 1000 m), and is mainly used for conveying production media between underwater production facilities and between the underwater production facilities and a floating platform. Steel catenary risers (hereinafter SCR) are generally considered to be deep water marine vessel-to-floating platform extensions. The SCR, driven by the motion of the floating platform, generates a certain tension load on the deepwater marine pipe connected to it and its end facilities (PLET, connectors, jumpers, etc.). If the load is too large, the submarine pipeline and end facilities are driven to move, the integrity of the connector and the jumper pipe is affected and even damaged, and the problems of leakage and the like are caused. Furthermore, the gradual movement of the pipeline in the direction of the wellhead and terminal facilities (opposite the vessel) during the operation of the multiple heating and cooling cycles also causes damage to the terminal facilities.
Disclosure of Invention
The invention aims to provide a clamp capable of fixing a deepwater sea pipe.
In order to solve the technical problems, the invention provides a fixture for limiting the bidirectional movement of a deepwater sea pipe along an axis, which is used for being installed on a sea pipe joint, wherein the fixture comprises an upper fixture and a lower fixture matched with the upper fixture, the upper fixture and the lower fixture are both provided with semicircular curved surfaces, and the curved surfaces of the upper fixture and the lower fixture form a fixing surface capable of surrounding the outer wall of a pipeline; wing plates which are parallel to each other are arranged on two sides of the curved surfaces of the upper fixture and the lower fixture, the baffle plates fixed on the wing plates are arranged at two ends of the curved surfaces of the upper fixture and the lower fixture, the baffle plates are vertically connected to one ends of supporting plates arranged on the central axis of the curved surfaces, and the other ends of the supporting plates are vertically connected to reinforcing plates which are arranged on the curved surfaces and fixed on the wing plates.
According to a preferred embodiment of the invention, at least one anode block is arranged on the curved surface of each of the upper fixture and the lower fixture.
According to a preferred embodiment of the present invention, the wing plates at the four top corners of the upper fixture and the lower fixture are provided with convex rings.
According to a preferred embodiment of the present invention, the length of the reinforcing plate in the direction perpendicular to the axis of the curved surface is not smaller than the length of the baffle plate.
According to a preferred embodiment of the present invention, the height of the reinforcing plate in the direction perpendicular to the axis of the curved surface is not smaller than the height of the baffle plate.
According to a preferred embodiment of the present invention, the upper jig and the lower jig are both centrosymmetric in a direction perpendicular to the axis of the curved surface.
According to a preferred embodiment of the present invention, at least one through hole is uniformly distributed on the wing plate of the upper fixture and the lower fixture close to the curved surface.
According to a preferred embodiment of the present invention, the upper jig and the lower jig are coupled at the through hole by a fastener.
According to a preferred embodiment of the invention, the reinforcing plate and the baffle are both arched in shape.
According to a preferred embodiment of the present invention, the fixture is made of a steel plate.
The invention has the technical effects that:
1. the invention relates to a clamp for limiting a deepwater sea pipe to move in two directions along an axis.
2. The invention provides a sea pipe clamp which is installed on a special sea pipe joint and serves as an extra tension bearing and transmitting part, so that excessive movement of a deep water sea pipe along different directions of an axis is limited, the purposes of protecting the integrity and safety of facilities at the end part of the deep water sea pipe and underwater facilities connected with the deep water sea pipe are achieved, and the installation is convenient.
3. The invention provides a sea pipe clamp, wherein a plurality of anode blocks are arranged on the surface of the clamp, and the clamp is subjected to anticorrosion protection according to the relevant principles of an anticorrosion coating and anode protection, so that the service life of the sea pipe clamp is prolonged, and the cost is saved.
Drawings
FIG. 1 is a schematic structural diagram of a fixture for restricting the bi-directional movement of a deepwater sea pipe along an axis according to the present invention;
FIG. 2 is an assembly view of a fixture for limiting bi-directional movement of a deepwater sea pipe along an axis according to the present invention;
FIG. 3 is a top view of a fixture for limiting bi-directional movement of a deepwater sea pipe along an axis in accordance with the present invention;
fig. 4 is a side view of a fixture for restricting bi-directional movement of a deepwater sea pipe along an axis in accordance with the present invention.
Reference numerals: 1-a wing plate; 2-a baffle plate; 3-a reinforcing plate; 4-an anode block; 5-a supporting plate; 6-mounting a fixture; 7-lower fixture; 8-convex ring; 9-a through hole; 10-fastener.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
As shown in figure 1, the product is formed by welding and assembling a wing plate 1, a baffle plate 2, a reinforcing plate 3, an anode block 4 and a bracing plate 5, and is fixedly connected by a fastener 10, namely a bolt, and each component is designed by strength and fatigue so as to achieve the purposes of bearing over 300 tons of tension in the opposite direction and prolonging the service life of 30 years. The main parts of the upper fixture 6 and the lower fixture 7 are made of API 2H Gr50 material, the bolt is made of ASTM A193-B7/M material, and the nut is made of ASTM A194-2H/M material.
As shown in fig. 1, the present invention provides a fixture for limiting the bidirectional movement of a deepwater sea pipe along an axis, which is used for being installed on a sea pipe joint, the fixture comprises an upper fixture 6 and a lower fixture 7 matched with the upper fixture 6, the upper fixture 6 and the lower fixture 7 both have semicircular curved surfaces, and the curved surface of the upper fixture 6 and the curved surface of the lower fixture 7 form a fixing surface capable of surrounding the outer wall of a pipeline; go up fixture 6 and fixture 7's curved surface both sides and all be provided with pterygoid lamina 1 that is parallel to each other, fixture 6 and fixture 7's curved surface both ends all are provided with the baffle 2 that is fixed in pterygoid lamina 1 down, and the one end of fagging 5 that the equal perpendicular connection of baffle 2 set up on the curved surface axis, and the reinforcing plate 3 of locating the curved surface and fixing on pterygoid lamina 1 is all connected perpendicularly to the other end of fagging 5.
As shown in fig. 2, the clamp includes an upper clamp 6 and a lower clamp 7 engaged with the upper clamp 6, and the upper clamp 6 and the lower clamp 7 are fixedly connected by a fastener 10.
As shown in fig. 1, 3 and 4, at least one anode block 4 is arranged on the curved surface of each of the upper fixture 6 and the lower fixture 7, and is subjected to anticorrosive coating and anode protection; the wing plates 1 at the four top corners of the upper fixture 6 and the lower fixture 7 are respectively provided with a convex ring 8, so that the fixture has higher strength; the wing plates 1 of the upper fixture 6 and the lower fixture 7 close to the curved surface are also provided with at least one through hole 9 which is uniformly distributed, and the through holes 9 are connected through a fastening piece 10.
By designing the size and the strength of the fixture, the deep water marine pipe clamp can basically meet the requirements of deep water marine pipes of various sizes and the use of different corresponding tension. The fixture for limiting the bidirectional movement of the deepwater sea pipe along the axial line is used for greatly reducing the risk of the damage of the high-temperature and high-pressure pipeline connected between the deepwater and the steel catenary riser, and ensuring the safe production of the underwater facilities of the deepwater oil and gas field.
The specific implementation steps of the fixture design for limiting the bidirectional movement of the deepwater sea pipe along the axis, the land assembly construction and the offshore installation are as follows: according to the motion analysis of the steel catenary riser under the extreme environment working condition, calculating the tension required by limiting the movement of the pipeline to the platform direction; according to the starting, closing and thermal cycle analysis of the pipeline at the extending section of the steel catenary riser under the operating condition, calculating the tension required by the limiting pipeline to move towards the direction of a wellhead terminal; according to the design method of the clamp, the structural form and the size of the clamp are designed; assembling and manufacturing the clamp according to the material requirements provided by the clamp; in order to save the offshore construction time, the marine pipe clamp is installed to a prefabricated pipe section containing a special marine pipe joint by using a bolt with design requirements on land; transporting the sea pipe section containing the clamp to a site pipe laying ship, and laying the sea pipe section with other pipe sections in place according to a selected pipeline laying process; and connecting the sea pipe clamp which is in place with the underwater fixing device through the underwater robot.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A fixture for limiting a deepwater sea pipe to move in two directions along an axis is used for being installed on a sea pipe joint and comprises an upper fixture and a lower fixture matched with the upper fixture; wing plates which are parallel to each other are arranged on two sides of the curved surfaces of the upper fixture and the lower fixture, the baffle plates fixed on the wing plates are arranged at two ends of the curved surfaces of the upper fixture and the lower fixture, the baffle plates are vertically connected to one ends of supporting plates arranged on the central axis of the curved surfaces, and the other ends of the supporting plates are vertically connected to reinforcing plates which are arranged on the curved surfaces and fixed on the wing plates.
2. The clamp for limiting the axial bidirectional movement of the deepwater sea pipe according to claim 1, wherein at least one anode block is arranged on each of the curved surfaces of the upper clamp and the lower clamp.
3. The clamp for limiting the axial bidirectional movement of the deepwater sea pipe according to claim 1, wherein the flanges at the four corners of the upper clamp and the lower clamp are provided with convex rings.
4. The clamp for limiting axial bi-directional movement of a deepwater sea pipe according to claim 1, wherein the length of the reinforcing plate in the direction perpendicular to the axis of the curved surface is not less than the length of the baffle.
5. The clamp for limiting axial bi-directional movement of a deepwater sea pipe according to claim 1, wherein the height of the reinforcement plate in a direction perpendicular to the axis of the curved surface is not less than the height of the baffle.
6. The clamp for limiting the bi-directional movement of a deepwater marine vessel along an axis as claimed in claim 1, wherein the upper clamp and the lower clamp are both centrosymmetric along a direction perpendicular to the axis of the curved surface.
7. The clamp for limiting the axial bidirectional movement of the deepwater sea pipe according to claim 1, wherein the wing plates of the upper clamp and the lower clamp, which are close to the curved surface, are provided with at least one through hole which is uniformly distributed.
8. A clamp for limiting bi-directional axial movement of a deepwater marine vessel as claimed in claim 7 wherein said upper clamp is connected to said lower clamp at said through hole by a fastener.
9. The clamp for limiting bi-directional axial movement of a deepwater marine vessel as claimed in claim 1 wherein said stiffening plate and said baffle are both arcuate in shape.
10. The clamp for limiting the axial bidirectional movement of the deepwater sea pipe according to claim 1, wherein the clamp is made of a steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111512004.4A CN114294480A (en) | 2021-12-07 | 2021-12-07 | Fixture for limiting bidirectional movement of deepwater sea pipe along axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111512004.4A CN114294480A (en) | 2021-12-07 | 2021-12-07 | Fixture for limiting bidirectional movement of deepwater sea pipe along axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114294480A true CN114294480A (en) | 2022-04-08 |
Family
ID=80968201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111512004.4A Pending CN114294480A (en) | 2021-12-07 | 2021-12-07 | Fixture for limiting bidirectional movement of deepwater sea pipe along axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114294480A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541967A (en) * | 2019-01-30 | 2019-12-06 | 深圳海油工程水下技术有限公司 | deepwater sea pipe maintenance fixture |
| CN113027358A (en) * | 2021-02-09 | 2021-06-25 | 海洋石油工程股份有限公司 | Novel anti-slip clamp for preventing displacement of submarine pipeline |
| CN113464723A (en) * | 2021-06-03 | 2021-10-01 | 海洋石油工程股份有限公司 | Anchoring system for limiting unidirectional movement of deepwater sea pipe |
-
2021
- 2021-12-07 CN CN202111512004.4A patent/CN114294480A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541967A (en) * | 2019-01-30 | 2019-12-06 | 深圳海油工程水下技术有限公司 | deepwater sea pipe maintenance fixture |
| CN113027358A (en) * | 2021-02-09 | 2021-06-25 | 海洋石油工程股份有限公司 | Novel anti-slip clamp for preventing displacement of submarine pipeline |
| CN113464723A (en) * | 2021-06-03 | 2021-10-01 | 海洋石油工程股份有限公司 | Anchoring system for limiting unidirectional movement of deepwater sea pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1052775C (en) | Flexible riser system | |
| US6837311B1 (en) | Hybrid riser configuration | |
| CN101963257B (en) | Method for fixing seabed pipeline and preventing buckle propagation | |
| CN111237542A (en) | Deepwater gas field underwater connection expansion equipment for J-shaped installation | |
| Duan et al. | An installation system of deepwater risers by an S-lay vessel | |
| CN111878627B (en) | Shock-resistant and vibration-resistant submarine pipeline protection device | |
| CN101975313B (en) | Submarine pipeline bending-resisting fixer and installing method thereof | |
| CN114294480A (en) | Fixture for limiting bidirectional movement of deepwater sea pipe along axis | |
| CN201354590Y (en) | Marine riser device for ocean deepwater drilling | |
| CN201043641Y (en) | Single-layer heat-preserving counterbalance pipe with cathode protection device used in oceanography engineering | |
| CN113153233A (en) | Three-dimensional overlong rigid connection pipeline system with buoyancy device | |
| CN114421418B (en) | Umbilical cable terminal convenient for underwater connection | |
| CN113464723A (en) | Anchoring system for limiting unidirectional movement of deepwater sea pipe | |
| CN212745373U (en) | Offshore oil conveying pipeline | |
| CN215806793U (en) | Submarine pipeline holding clamp for limiting unidirectional movement of deepwater submarine pipeline | |
| CN216843706U (en) | Submarine pipeline joint for limiting unidirectional movement of deepwater submarine pipeline | |
| CN113006143A (en) | Suspension tunnel tube joint structure | |
| CN104791576A (en) | Deepwater oil gas crossover pipe | |
| CN202031490U (en) | Spacer block device for deep sea tower type vertical pipe | |
| Odru et al. | Composite riser and export line systems for deep offshore applications | |
| CN216201239U (en) | Pipe joint for deepwater sea pipe | |
| WO2000063598A1 (en) | Scr top connector | |
| CN113530498A (en) | Deepwater limited three-dimensional space horizontal wellhead connecting pipeline system | |
| KR101607942B1 (en) | Method for loading riser guide tubes | |
| CN217351539U (en) | Point welding type anode structure for protecting deepwater sea pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |