CN218177168U

CN218177168U - Marine riser hangs fixing device

Info

Publication number: CN218177168U
Application number: CN202222121689.6U
Authority: CN
Inventors: 金国林; 夏其中; 金鑫; 江俊西; 乔东湘
Original assignee: Jianhu County Yongwei Valve And Drill Co ltd
Current assignee: Jianhu County Yongwei Valve And Drill Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-12-30
Anticipated expiration: 2032-08-12

Abstract

The application discloses riser hangs fixing device relates to the fixed technical field of riser, including the riser, the top threaded connection of riser has the snap ring, the outer wall of snap ring is provided with the fixed block, the top block of fixed block has the apron, the lateral wall of fixed block is fixed with the second flat board, the second flat board is kept away from one side of fixed block and is waited the angle and be provided with multiunit push rod, multiunit the dull and stereotyped one end of second is all fixed with the fly leaf to the push rod, the dull and stereotyped one side of second all is fixed with first spring is kept away from to the fly leaf, one side that the fly leaf was kept away from to first spring all is fixed with the box. When the ocean floating type drilling platform is impacted by wind and waves, the ocean floating type drilling platform can generate large heaving amount and relative motion from other directions, and when the ocean floating type drilling platform is impacted by force in the horizontal direction, the ocean floating type drilling platform can move towards a certain direction.

Description

Marine riser hangs fixing device

Technical Field

The application relates to the technical field of riser fixing, in particular to a riser hanging and fixing device.

Background

In the present day that oil is largely used, oil exploitation is not limited to land, deep sea exploitation is also in progress, exploration for deep sea oil is less than that of offshore drilling equipment such as an offshore floating drilling platform and a riser, the riser plays a role of isolating seawater, the riser is usually suspended and fixed on the offshore floating drilling platform, a traditional riser suspension and fixing device can basically meet the use requirements of people, and in the process of implementing the application, the inventor finds that at least the following problems exist in the technology, and the specific problems are as follows:

most riser hanging and fixing devices in the market do not consider the influence of relative movement in the horizontal direction on the stability of the riser hanging except in the vertical direction in the process of seawater impact.

Disclosure of Invention

In order to improve the above mentioned problem that the influence of the relative motion in the horizontal direction in addition to the vertical direction during the sea water impact on the riser suspension stability may not be considered, the present application provides a riser suspension fixture.

The application provides a riser hangs fixing device adopts following technical scheme:

the utility model provides a riser hangs fixing device, includes the riser, the top threaded connection of riser has the snap ring, the outer wall of snap ring is provided with the fixed block, the top block of fixed block has the apron, the lateral wall of fixed block is fixed with the second flat board, the second flat board is kept away from one side of fixed block and is waited the angle and be provided with multiunit push rod, multiunit the dull and stereotyped one end of second all is fixed with the fly leaf is kept away from to the push rod, the dull and stereotyped one side of second all is fixed with first spring is kept away from to the fly leaf, one side that the fly leaf was kept away from to first spring all is fixed with the box, one side that first spring was kept away from to the box all is fixed with ocean floating drilling platform.

Through adopting above-mentioned technical scheme, when ocean floating drilling platform meets the stormy waves and assaults, ocean floating drilling platform may produce big heaving volume and also may produce the relative motion that comes from other directions, when receiving the impact of the ascending power of horizontal direction, ocean floating drilling platform can be towards certain direction motion, at the in-process of motion, the box can be along with the power of effect to the direction removal that is close to the fixed block, first spring plays the cushioning effect between fly leaf and box, reduce the power to the horizontal direction that the riser produced when ocean floating drilling platform moves to certain direction, avoid the riser fracture.

Optionally, the top of snap ring is provided with first flat board, the top of first flat board is fixed with the multiunit second spring, the top of second spring is fixed with the third flat board, the third flat board contacts with the diapire of apron.

Through adopting above-mentioned technical scheme, if meet the great condition of heaving volume when ocean floating drilling platform carries out the operation, can reciprocate at the outside of marine riser through the fixed block, at the in-process that removes, the compression of second spring plays the effect of buffering.

Optionally, a support frame is fixed to the side wall of the fixed block, and the bottom wall of the support frame is in contact with the ocean floating drilling platform.

Through adopting above-mentioned technical scheme, fix the lateral wall at the fixed block through the inner wall on the upper portion of support frame, the diapire of support frame is placed on ocean floating drilling platform, can provide the support for the fixed block.

Optionally, an upright is fixed to the top of the second flat plate, and a threaded component is fixed to the top of the upright.

Through adopting above-mentioned technical scheme, the top of stand provides the support for the fixed block, and fixed connection through threaded component can inject the position of fixed block.

Optionally, the threaded component includes the screw thread post, the screw thread post is installed at the top of stand, the screw thread post sets up to the multiunit, multiunit the outer wall and the fixed block and the apron of screw thread post cup joint mutually, the outer wall of screw thread post has cup jointed the nut, the inside of nut be provided with screw thread post assorted screw thread, the bottom of nut contacts with the top of apron.

Through adopting above-mentioned technical scheme, can link together apron and fixed block.

Optionally, a fixing arm is fixed to the bottom of the second flat plate, a limiting ring is fixed to one side, away from the second flat plate, of the fixing arm, and the inner wall of the limiting ring is in contact with the outer wall of the fixing block.

Through adopting above-mentioned technical scheme, prevent when meetting bad weather, arouse empting of fixed block.

In summary, the present application includes at least one of the following benefits:

firstly, when the ocean floating type drilling platform is impacted by wind and waves, the ocean floating type drilling platform can generate large heave amount and relative motion from the horizontal direction, when the ocean floating type drilling platform is impacted by force in the horizontal direction, the ocean floating type drilling platform can move towards a certain direction, in the motion process, the box body can move towards the direction close to the fixed block along with the force, and the first spring plays a role in buffering between the movable plate and the box body, so that the horizontal force generated on the marine riser when the ocean floating type drilling platform moves towards a certain direction is reduced, and the marine riser is prevented from being broken;

secondly, if meet the great condition of heaving volume when the operation is carried out to ocean floating drilling platform, can reciprocate at the outside of marine riser through the fixed block, at the in-process that removes, the compression of second spring plays the effect of buffering.

Drawings

FIG. 1 is a front cross-sectional structural view of the present application;

fig. 2 is a schematic top view of the present application.

In the figure: 1. a nut; 2. a fixed block; 3. a first plate; 4. a second plate; 5. a snap ring; 6. a riser; 7. a confinement ring; 8. a fixed arm; 9. a push rod; 10. a movable plate; 11. a first spring; 12. a box body; 13. an offshore floating drilling platform; 14. a column; 15. a support frame; 16. a cover plate; 17. a second spring; 18. a third plate; 19. a threaded post.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

Referring to fig. 1 and 2 in the drawings, the present application provides an embodiment: a marine riser hanging and fixing device comprises a marine riser 6, threads are arranged on the outer wall of the top of the marine riser 6, a snap ring 5 is connected to the top of the marine riser 6 through threads, the cross section of the snap ring 5 is in a circular ring shape, threads matched with the outer wall of the marine riser 6 are arranged on the inner wall of the snap ring 5, a first flat plate 3 is arranged on the top of the snap ring 5, the cross section of the first flat plate 3 is in a circular ring shape, multiple groups of second springs 17 are fixed on the top of the first flat plate 3 at equal intervals and at equal angles, multiple groups of third flat plates 18 are fixed on the tops of the multiple groups of second springs 17, the cross section of each third flat plate 18 is in a circular ring shape, a fixed block 2 is arranged on the outer wall of the snap ring 5, a pipe hole is formed in the center of the fixed block 2, a movable groove is formed in the top of the fixed block 2, multiple groups of square fixture blocks are fixed on the tops of the fixed block 2, a support frame 15 is formed by two circular rings with different radiuses from the top to the circular rings and multiple support rods for supporting between the circular rings, and the bottom wall of the support frame 15 is in contact with a floating drilling platform 13.

Referring to fig. 1 and 2 in the drawings of the specification, a cover plate 16 is clamped at the top of a fixed block 2, a third plate 18 is in contact with the bottom wall of the cover plate 16, a through hole is formed in the center of the cover plate 16, screw holes are formed in both sides of the cover plate 16, a plurality of groups of square clamping grooves matched with the square clamping blocks formed in the bottom of the fixed block 2 are formed in the bottom of the cover plate 16, a second plate 4 is fixed on the side wall of the fixed block 2, the cross section of the second plate 4 is circular, a plurality of groups of push rods 9 are arranged on one side, away from the fixed block 2, of the second plate 4, a movable plate 10 is fixed at one end of each group of the push rods 9, a first spring 11 is fixed on one side, away from the second plate 4, of the movable plate 10, a box body 12 is fixed on one side, away from the movable plate 10, a rod hole is formed in one side, close to the fixed block 2, the rod hole radius of the box body 12 is matched with the radius of the push rods 9, an ocean floating drilling platform 13 is fixed on one side, away from the first spring 11, and a fixing hole is formed in the ocean floating drilling platform 13.

Please refer to fig. 1 and fig. 2 in the drawings of the specification, an upright post 14 is fixed on the top of the second plate 4, the longitudinal section of the upright post 14 is T-shaped, threaded posts 19 are fixed on the top of the upright post 14, the threaded posts 19 are arranged in multiple groups, threaded holes are respectively formed on two sides of the top of the fixed block 2, the outer walls of the multiple groups of threaded posts 19 are sleeved with the fixed block 2 and the cover plate 16, a nut 1 is sleeved on the outer wall of the threaded post 19, threads matched with the threaded posts 19 are arranged inside the nut 1, and the bottom of the nut 1 is in contact with the top of the cover plate 16.

Placing the support frame 15 on the ocean floating drilling platform 13 to enable the fixing block 2 to be located in a fixing hole of the ocean floating drilling platform 13, screwing the clamping ring 5 to enable the clamping ring 5 to be in threaded connection with the top of the marine riser 6, enabling the marine riser 6 to penetrate through a pipe hole formed in the center of the fixing block 2 to enable the clamping ring 5 to be clamped into a movable groove formed in the top of the fixing block 2, sleeving the cover plate 16 on the threaded column 19 to enable the cover plate 16 to be clamped with the fixing block 2, and screwing the nut 1 to enable the cover plate 16 and the fixing block 2 to be connected together.

Referring to fig. 1 in the drawings of the specification, a fixing arm 8 is fixed at the bottom of the second plate 4, the longitudinal section of the fixing arm 8 is L-shaped, a limiting ring 7 is fixed on one side of the fixing arm 8 far away from the second plate 4, the cross section of the limiting ring 7 is circular, and the inner wall of the limiting ring 7 is in contact with the outer wall of the fixing block 2.

The working principle is as follows: when the riser hanging and fixing device is used, the supporting frame 15 is placed on the ocean floating type drilling platform 13, the fixing block 2 is located in a fixing hole of the ocean floating type drilling platform 13, the bottoms of two sides of the fixing block 2 are in contact with the top of the stand column 14, the lowest height of the fixing block 2 can be limited through the stand column 14, the fixing block 2 and the cover plate 16 are connected together through screwing the nut 1, the ascending range of the riser 6 is limited, the fixing block 2 is limited through the limiting ring 7, and the fixing block 2 is prevented from toppling over when stressed.

The method comprises the steps of screwing a snap ring 5 to enable the snap ring 5 to be connected to the top of a marine riser 6 in a threaded mode, enabling the marine riser 6 to penetrate through a pipe hole formed in the center of a fixing block 2, enabling the snap ring 5 to be clamped into a movable groove formed in the top of the fixing block 2, fixing a first plate 3 on the top of the snap ring 5, fixing a plurality of groups of second springs 17 on the top of the first plate 3, fixing a third plate 18 on the tops of the plurality of groups of second springs 17, sleeving a cover plate 16 on a threaded column 19, enabling the cover plate 16 to be clamped with the fixing block 2, screwing a nut 1 to enable the cover plate 16 to be connected with the fixing block 2, driving a box body 12 to move towards the direction of the fixing block 2 when a force in the horizontal direction caused by seawater impacting an ocean floating type drilling platform 13 is applied, enabling a first spring 11 to compress and buffer the force in the horizontal direction, enabling a support frame 15 to move on the top of the ocean drilling platform 13 in the process of the stress movement of the ocean drilling platform 13, reducing the force in the horizontal direction generated by the floating type drilling platform 13 when the floating type drilling platform 13 moves towards a certain direction, and preventing the floating type drilling platform 6 from breaking.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A riser hangs fixing device, includes riser (6), its characterized in that: the top threaded connection of riser (6) has snap ring (5), the outer wall of snap ring (5) is provided with fixed block (2), the top block of fixed block (2) has apron (16), the lateral wall of fixed block (2) is fixed with second flat board (4), the angle such as one side that fixed block (2) were kept away from in second flat board (4) is provided with multiunit push rod (9), multiunit the one end that second flat board (4) were kept away from in push rod (9) all is fixed with fly leaf (10), one side that second flat board (4) were kept away from in fly leaf (10) all is fixed with first spring (11), one side that fly leaf (10) were kept away from in first spring (11) all is fixed with box (12), one side that first spring (11) were kept away from in box (12) all is fixed with floating ocean drilling platform (13).

2. The riser hang-off fixture of claim 1, wherein: the top of snap ring (5) is provided with first flat board (3), the top of first flat board (3) is fixed with multiunit second spring (17), the top of second spring (17) is fixed with third flat board (18), the diapire of third flat board (18) and apron (16) contacts.

3. A riser hang-off fixture as claimed in claim 1, wherein: and a support frame (15) is fixed on the side wall of the fixed block (2), and the bottom wall of the support frame (15) is in contact with the ocean floating drilling platform (13).

4. A riser hang-off fixture as claimed in claim 1, wherein: an upright post (14) is fixed at the top of the second flat plate (4), and a threaded component is fixed at the top of the upright post (14).

5. The riser hang-off fixture of claim 4, wherein: the threaded component comprises a threaded column (19), the threaded column (19) is installed at the top of the stand column (14), the threaded column (19) is arranged into a plurality of groups, the outer wall of the threaded column (19) is sleeved with the fixed block (2) and the cover plate (16), the outer wall of the threaded column (19) is sleeved with the nut (1), the inside of the nut (1) is provided with threads matched with the threaded column (19), and the bottom of the nut (1) is in contact with the top of the cover plate (16).

6. A riser hang-off fixture as claimed in claim 1, wherein: the bottom of second flat board (4) is fixed with fixed arm (8), one side that second flat board (4) was kept away from in fixed arm (8) is fixed with limit ring (7), the inner wall of limit ring (7) contacts with the outer wall of fixed block (2).