CN116291244A - Marine deepwater drilling riser - Google Patents

Marine deepwater drilling riser Download PDF

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Publication number
CN116291244A
CN116291244A CN202310599785.8A CN202310599785A CN116291244A CN 116291244 A CN116291244 A CN 116291244A CN 202310599785 A CN202310599785 A CN 202310599785A CN 116291244 A CN116291244 A CN 116291244A
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CN
China
Prior art keywords
block
bolt
pipeline
size
fixed
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Granted
Application number
CN202310599785.8A
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Chinese (zh)
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CN116291244B (en
Inventor
王茂甡
王恩泽
荆少东
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Qingdao Binhai Survey And Mapping Co ltd
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Qingdao Binhai Survey And Mapping Co ltd
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Priority to CN202310599785.8A priority Critical patent/CN116291244B/en
Publication of CN116291244A publication Critical patent/CN116291244A/en
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Publication of CN116291244B publication Critical patent/CN116291244B/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/08Casing joints
    • E21B17/085Riser connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/08Joints with sleeve or socket with additional locking means

Abstract

The invention discloses a marine deepwater drilling riser, which particularly relates to the technical field of deepwater drilling, and comprises a first pipeline and a plurality of installation components, wherein one end of the first pipeline is provided with a second pipeline.

Description

Marine deepwater drilling riser
Technical Field
The invention relates to the technical field of deep water drilling, in particular to a marine deep water drilling riser.
Background
The riser is a conduit connecting the subsea blowout preventer stack and the floating offshore drilling rig, and is primarily intended to isolate sea water.
When using riser pipes, the riser pipe forms a connection channel from the offshore drilling rig down to the seabed, and then leads into the drilling tool and casing, as well as the channel constituting the mud circulation. When the riser is used in a deeper sea area, a plurality of riser pipes are connected to increase the length of the riser pipe. Gaps are easy to generate at the joint of the multi-riser, so that seawater can permeate into the riser through the gaps, and the use effect of the riser is affected.
In the prior art, a sealing glue is used at the joint of a plurality of riser pipes to fill gaps at the joint of two riser pipes, and then the sealing performance of the joint of the riser pipes is improved. The present application provides another solution.
Disclosure of Invention
The invention provides an ocean deepwater drilling riser, which aims to solve the problem that after a plurality of riser pipes are connected to increase the length of the riser pipes, gaps are easy to generate at the joint of the riser pipes, so that seawater permeates into the riser pipes through the gaps, and the use effect of the riser pipes is affected.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an ocean deep water well drilling riser, includes first pipeline and a plurality of installation component, the one end of first pipeline is equipped with the second pipeline, the second pipeline is equipped with sealing device with the help of a plurality of installation component, sealing device includes the ring piece, the fixed surface of ring piece is connected with a plurality of fixed block, a plurality of the fixed block is arranged at ring piece surface circumference equidistance, a plurality of the surface threaded connection of fixed block has first bolt, threaded hole has been seted up on the surface of first fixed block, the size and the size looks adaptation of screw thread hole of first bolt, the one end rotation of first bolt is connected with the movable block, the junction cover of first pipeline and second pipeline is equipped with the rubber circle, the size and the size looks adaptation of first pipeline and second pipeline of rubber circle, movable block and rubber circle butt, the one end fixedly connected with operation piece of movable block is kept away from to the first bolt, the one end fixedly connected with guide block that the movable block is close to the fixed block, the guide hole has been seted up on the surface of fixed block, guide block size and guide block looks adaptation, guide block looks adaptation.
The effects achieved by the components are as follows: after the first pipeline and the second pipeline are connected, the rubber ring can be sleeved at the joint of the first pipeline and the second pipeline, then one end of the rubber ring is abutted against the annular block, then the first bolt is rotated through the operation block, the first bolt is enabled to rotate inside the threaded hole on the surface of the fixed block, then the first bolt drives the movable block to be close to the rubber ring, at the moment, the movable block can drive the guide block to move, then the guide block can slide inside the guide hole on the surface of the fixed block, then the guide block can limit the moving track of the movable block, the movable block is prevented from rotating together with the first bolt, then the movable block can be abutted against the rubber ring, then the operation is repeated, all the movable blocks are abutted against the rubber ring to be fixed at the joint of the first pipeline and the second pipeline, then the gap between the first pipeline and the second pipeline is blocked and sealed through the rubber ring, and then the sealing performance between the first pipeline and the second pipeline is improved, the situation that seawater permeates into the water-stop pipe through the gap between the first pipeline and the second pipeline is avoided, and the water-stop pipe is influenced is avoided, so that the water-stop effect is improved.
Preferably, one end of the guide block, which is far away from the moving block, is fixedly connected with a baffle plate, and the size of the baffle plate is larger than the size of the guide hole on the surface of the fixed block.
The effects achieved by the components are as follows: when the guide block limits the moving track of the moving block, the baffle plate at one end of the moving block far away from the guide block can limit the maximum displacement of the guide block when the moving block and the first bolt are prevented from rotating together, the condition that the guide block breaks away from the fixed block through the guide hole on the surface of the fixed block is avoided as much as possible, and therefore the using effect of the guide block is improved.
Preferably, the two sides of the operation block are fixedly connected with a plurality of rectangular blocks, the rectangular blocks are equally divided into two groups, and the rectangular blocks in the two groups are equidistantly arranged on the two sides of the operation block.
The effects achieved by the components are as follows: when an operator needs to rotate the operation block to bring the first bolt to rotate, the friction between the operation block and the hands of the operator can be improved through a plurality of rectangular blocks which are equidistantly arranged on two sides of the operation block, and then the operator can rotate the operation block more easily, so that the use effect of the operation block is improved, and the first bolt can be rotated more conveniently to change the position of the movable block.
Preferably, one end of the rubber ring, which is close to the annular block, is fixedly connected with a protruding block, the size of the protruding block, which is close to one end of the rubber ring, is larger than that of the other end of the rubber ring, a positioning ring is fixedly connected to the surface of the annular block, and the size of the positioning ring is matched with that of the protruding block.
The effects achieved by the components are as follows: when laminating the one end of rubber circle with the ring piece together, can be through pasting the protruding piece and the ring piece of rubber circle one end together to protruding piece and rubber circle junction and holding ring keep away from when ring piece one end parallel, confirm that the rubber circle reaches suitable position, thereby make things convenient for follow-up operating personnel to use the movable block to fix the position of rubber circle.
Preferably, the installation component includes the installation piece, installation piece and second pipeline fixed connection, the inside of installation piece is inserted and is equipped with the connecting block, connecting block and ring piece fixed connection, the spout has been seted up to the one end that the ring piece was kept away from to the installation piece, the inside sliding connection of installation piece surface spout has the fixture block, fixture block and connecting block joint, one side fixedly connected with additional board of installation piece, the internal thread of additional board is inserted and is equipped with the second bolt.
The effects achieved by the components are as follows: when the sealing device is required to be used for sealing the connection part of the first pipeline and the second pipeline, the connecting block on the ring block can penetrate through the mounting block on the surface of the second pipeline, then the clamping block in the sliding groove on the surface of the mounting block is moved to clamp the connecting block, then the second bolt in the additional plate is rotated to enable the second bolt to be close to the clamping block, then the second bolt limits the position of the clamping block, then the situation that the clamping block is separated from the connecting block is avoided as much as possible, and then after the operation is repeated, the ring block can be quickly fixed on the surface of the second pipeline, so that the sealing device is convenient to use for sealing the connection part of the first pipeline and the second pipeline.
Preferably, one end of the clamping block far away from the connecting block is fixedly connected with a control handle, and the section of the control handle is L-shaped.
The effects achieved by the components are as follows: when the operator needs to move the clamping block inside the sliding groove on the surface of the installation block, the contact area between the hand of the operator and the clamping block can be increased through the control handle on the surface of the clamping block, so that the operator can move the clamping block more easily.
Preferably, the second bolt is located at one end of the baffle close to the control handle, and the size of the second bolt is matched with the size of the baffle.
The effects achieved by the components are as follows: when operating personnel need use the second bolt, because the second bolt is located the baffle and is close to the one end of control handle, make the second bolt of size adaptation can carry out the position restriction to the fixture block that blocks the connecting block well.
Preferably, the surface of fixed block is equipped with reinforcing means, reinforcing means includes the third bolt, third bolt and fixed block fixed connection, the surface threaded connection of third bolt has the reinforcing block, the surface fixedly connected with of first pipeline places the piece, the surface thread of placing the piece inserts and is equipped with the fourth bolt, fourth bolt and reinforcing block threaded connection.
The effects achieved by the components are as follows: after first pipeline and second pipeline are connected, can be through inserting the one end of boss inside the piece of placing on first pipeline surface, the other end and the fixed block laminating of boss are in the same place this moment, then rotate the third bolt earlier, make the third bolt pass boss and fixed plate, fix boss and fixed plate, then rotate the fourth bolt, make the fourth bolt pass place the piece and fix together with the boss, then promote the joint strength between first pipeline and the second pipeline through the boss, reduce the influence of the sea water in flowing to first pipeline and second pipeline junction.
Preferably, one end of the placing block far away from the first pipeline is fixedly connected with a guide block, and the size of the guide block is matched with the size of the placing block.
The effects achieved by the components are as follows: when the operator needs to insert the reinforcing block into the placing block, the size of the inlet of the placing block can be increased by placing the surface guide block of the placing block, and the moving track of the reinforcing block is guided, so that the reinforcing block is more easily inserted into the placing block, and the placing block and the reinforcing block are conveniently and subsequently fixed together by using the fourth bolt.
Preferably, the end of the third bolt far away from the reinforcing block is fixedly connected with a nut, and the nut is positioned at the end of the fixed block far away from the reinforcing block.
The effects achieved by the components are as follows: when operating personnel need use the third bolt to fix fixed block and reinforcing block, can be close to fixed block one end fixation nut at the third bolt, then restrict the third bolt through the nut, avoid the third bolt to break away from the fixed block as far as possible to promote the result of use of third bolt.
In summary, the beneficial effects of the invention are as follows: the gap between the first pipeline and the second pipeline is shielded and sealed through the rubber ring, then the tightness between the first pipeline and the second pipeline is improved, seawater is prevented from penetrating into the waterproof conduit through the gap between the first pipeline and the second pipeline as much as possible, and an excellent sealing effect is achieved.
The fixing of the position of the circular ring block is completed rapidly through the installation component, so that the installation and the disassembly are convenient.
The connection strength between the first pipeline and the second pipeline is improved through the reinforcing block, and the influence of flowing seawater on the connection position of the first pipeline and the second pipeline is reduced.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial perspective view of the present invention.
Fig. 3 is a partial perspective view of the present invention of fig. 2.
Fig. 4 is a schematic perspective view of a first bolt according to the present invention.
Fig. 5 is a schematic view of a partial perspective view of the sealing device of the present invention.
Fig. 6 is a schematic perspective view of the mounting assembly of the present invention.
Fig. 7 is a schematic perspective view of the reinforcing apparatus of the present invention.
Reference numerals illustrate: 1. a first pipe; 2. a second pipe; 3. a sealing device; 301. a circular ring block; 302. a fixed block; 303. a first bolt; 304. a threaded hole; 305. a moving block; 306. a rubber ring; 307. an operation block; 308. a guide block; 309. a guide hole; 310. a baffle; 311. rectangular blocks; 312. a protruding block; 313. a positioning ring; 4. a mounting assembly; 41. a mounting block; 42. a connecting block; 43. a chute; 44. a clamping block; 45. a control handle; 46. an additional plate; 47. a second bolt; 5. a reinforcing means; 51. a third bolt; 52. a reinforcing block; 53. placing a block; 54. a fourth bolt; 55. a guide block; 56. and (3) a nut.
Detailed Description
Referring to fig. 1 to 7, the present embodiment discloses a marine deepwater drilling riser pipe, which comprises a first pipeline 1 and a plurality of installation components 4, wherein one end of the first pipeline 1 is provided with a second pipeline 2, the second pipeline 2 is provided with a sealing device 3 by means of the plurality of installation components 4, and the surface of a fixed block 302 is provided with a reinforcing device 5.
Referring to fig. 1 to 7, the embodiment discloses a sealing device 3 including a circular ring block 301, a plurality of fixed blocks 302 are fixedly connected to the surface of the circular ring block 301, the plurality of fixed blocks 302 are arrayed at equal intervals on the circumference of the surface of the circular ring block 301, a first bolt 303 is connected to the surface of the plurality of fixed blocks 302 in a threaded manner, a threaded hole 304 is formed in the surface of the first fixed block 302, the size of the first bolt 303 is matched with the size of the threaded hole 304, one end of the first bolt 303 is rotatably connected with a moving block 305, a rubber ring 306 is sleeved at the joint of the first pipeline 1 and the second pipeline 2, the size of the rubber ring 306 is matched with the sizes of the first pipeline 1 and the second pipeline 2, the moving block 305 is abutted to the rubber ring 306, an operating block 307 is fixedly connected to one end of the first bolt 303 away from the moving block 305, a guide block 308 is fixedly connected to one end of the moving block 305, a guide hole 309 is formed in the surface of the fixed block 302, the size of the guide block 308 is matched with the size of the guide hole 309 in the surface of the fixed block 302, and the guide block 308 is slidably connected with the fixed block 302.
Referring to fig. 1 to 7, this embodiment discloses that after the first pipe 1 and the second pipe 2 are connected, the rubber ring 306 is sleeved at the connection position of the first pipe 1 and the second pipe 2, then one end of the rubber ring 306 is attached to the circular ring block 301, then the first bolt 303 is rotated through the operation block 307, the first bolt 303 is rotated inside the threaded hole 304 on the surface of the fixed block 302, then the first bolt 303 drives the movable block 305 to approach the rubber ring 306, at this time, the movable block 305 drives the guide block 308 to move, then the guide block 308 slides inside the guide hole 309 on the surface of the fixed block 302, then the guide block 308 limits the movement track of the movable block 305, so as to avoid the movable block 305 to rotate together with the first bolt 303, then the movable block 305 is abutted with the rubber ring 306, then the operation is repeated, all the movable block 305 is abutted and fixed with the rubber ring 306, then the rubber ring 306 is fixed at the connection position of the first pipe 1 and the second pipe 2, then the first pipe 1 and the second pipe 2 are blocked by the rubber ring 306, then the gap between the first pipe 1 and the second pipe 2 is lifted, the first pipe 1 and the second pipe 2 are sealed, and the water-tight pipe 1 is prevented from being affected, and the water-tight pipe 1 is sealed, and the water-tight pipe is prevented from being leaked.
Referring to fig. 1 to 7, the present embodiment discloses that a baffle 310 is fixedly connected to an end of the guide block 308 remote from the moving block 305, and the size of the baffle 310 is larger than that of the guide hole 309 on the surface of the fixed block 302. When the guide block 308 limits the moving track of the moving block 305, and the moving block 305 is prevented from rotating together with the first bolt 303, the maximum displacement of the guide block 308 can be limited by the baffle 310 at one end of the moving block 305 away from the guide block 308, so that the condition that the guide block 308 is separated from the fixed block 302 through the guide hole 309 on the surface of the fixed block 302 is avoided as much as possible, and the use effect of the guide block 308 is improved. The two sides of the operation block 307 are fixedly connected with a plurality of rectangular blocks 311, the plurality of rectangular blocks 311 are equally divided into two groups, and the two groups of rectangular blocks 311 are equidistantly arranged on the two sides of the operation block 307. When an operator needs to rotate the operation block 307 to bring the first bolt 303, the friction force between the operation block 307 and the hand of the operator can be increased through the rectangular blocks 311 which are arranged at the two sides of the operation block 307 at equal intervals, and then the operator can rotate the operation block 307 more easily, so that the use effect of the operation block 307 is improved, and the first bolt 303 can be rotated more conveniently to change the position of the movable block 305. The rubber ring 306 is close to the one end fixedly connected with protruding piece 312 of ring piece 301, and protruding piece 312 is close to the size of rubber ring 306 one end and is greater than the size of the other end, and the surface fixedly connected with holding ring 313 of ring piece 301, the size of holding ring 313 and protruding piece 312's size looks adaptation. When one end of the rubber ring 306 is attached to the circular ring block 301, the position of the rubber ring 306 can be determined to be at a proper position by attaching the protruding block 312 at one end of the rubber ring 306 to the circular ring block 301 and enabling the connecting part of the protruding block 312 and the rubber ring 306 to be parallel to the end of the positioning ring 313 away from the circular ring block 301, so that the position of the rubber ring 306 can be conveniently fixed by using the moving block 305 by a subsequent operator.
Referring to fig. 1 to 7, this embodiment discloses that a plurality of installation components 4 include an installation block 41, the installation block 41 is fixedly connected with the second pipeline 2, a connection block 42 is inserted in the installation block 41, the connection block 42 is fixedly connected with the circular ring block 301, a sliding groove 43 is formed in one end of the installation block 41 far away from the circular ring block 301, a clamping block 44 is slidably connected in the sliding groove 43 on the surface of the installation block 41, the clamping block 44 is clamped with the connection block 42, an additional plate 46 is fixedly connected to one side of the installation block 41, and a second bolt 47 is inserted in internal threads of the additional plate 46. When the joint of the first pipeline 1 and the second pipeline 2 needs to be sealed by using the sealing device 3, the connecting block 42 on the circular ring block 301 can penetrate through the mounting block 41 on the surface of the second pipeline 2, then the clamping block 44 inside the sliding groove 43 on the surface of the mounting block 41 is moved to clamp the connecting block 42, then the second bolt 47 inside the additional plate 46 is rotated to enable the second bolt 47 to be close to the clamping block 44, then the position of the clamping block 44 is limited by the second bolt 47, the condition that the clamping block 44 is separated from the connecting block 42 is avoided as much as possible, and then after the operation is repeated, the circular ring block 301 can be quickly fixed on the surface of the second pipeline 2, so that the joint of the first pipeline 1 and the second pipeline 2 is conveniently sealed by using the sealing device 3.
Referring to fig. 1 to 7, the present embodiment discloses that a control handle 45 is fixedly connected to one end of the clamping block 44, which is far away from the connecting block 42, and the cross section of the control handle 45 is L-shaped. When an operator needs to move the clamping block 44 inside the sliding groove 43 on the surface of the mounting block 41, the contact area between the hand of the operator and the clamping block 44 can be increased through the control handle 45 on the surface of the clamping block 44, so that the operator can move the clamping block 44 more easily. The second bolt 47 is located at an end of the baffle 310 near the control knob 45, and the size of the second bolt 47 is adapted to the size of the baffle 310. When the operator needs to use the second bolt 47, since the second bolt 47 is located at the end of the baffle 310 near the control handle 45, the second bolt 47 with the size adapted can well limit the position of the fixture 44 that clamps the connection block 42.
Referring to fig. 1 to 7, the present embodiment discloses that the reinforcing apparatus 5 includes a third bolt 51, the third bolt 51 is fixedly connected with a fixed block 302, a reinforcing block 52 is screwed on the surface of the third bolt 51, a placing block 53 is fixedly connected on the surface of the first pipe 1, a fourth bolt 54 is screwed on the surface of the placing block 53, and the fourth bolt 54 is screwed with the reinforcing block 52. After the first pipe 1 and the second pipe 2 are connected, one end of the reinforcing block 52 can be inserted into the placing block 53 on the surface of the first pipe 1, at this time, the other end of the reinforcing block 52 is attached to the fixing block 302, then the third bolt 51 is rotated first, the third bolt 51 penetrates through the reinforcing block 52 and the fixing plate, the reinforcing block 52 and the fixing plate are fixed, then the fourth bolt 54 is rotated, the fourth bolt 54 penetrates through the placing block 53 and the reinforcing block 52 to be fixed together, and then the connecting strength between the first pipe 1 and the second pipe 2 is improved through the reinforcing block 52, so that the influence of flowing seawater on the connecting position of the first pipe 1 and the second pipe 2 is reduced as much as possible.
Referring to fig. 1 to 7, the present embodiment discloses that a guide block 55 is fixedly connected to an end of the placement block 53 remote from the first pipe 1, and the size of the guide block 55 is adapted to the size of the placement block 53. When the operator needs to insert the reinforcing block 52 into the inside of the placement block 53, the entrance size of the placement block 53 can be increased by guiding the block 55 through the surface of the placement block 53, and the moving track of the reinforcing block 52 is guided, so that the reinforcing block 52 is more easily inserted into the inside of the placement block 53, thereby facilitating the subsequent use of the fourth bolt 54 to fix the placement block 53 and the reinforcing block 52 together. The end of the third bolt 51 far away from the reinforcing block 52 is fixedly connected with a nut 56, and the nut 56 is positioned at the end of the fixed block 302 far away from the reinforcing block 52. When an operator needs to use the third bolt 51 to fix the fixing block 302 and the reinforcing block 52, the nut 56 can be fixed at one end of the third bolt 51 close to the fixing block 302, and then the third bolt 51 is limited by the nut 56, so that the third bolt 51 is prevented from being separated from the fixing block 302 as much as possible, and the use effect of the third bolt 51 is improved.
When the invention is used, the first pipeline 1 is connected with the second pipeline 2, the connecting block 42 on the circular block 301 passes through the mounting block 41 on the surface of the second pipeline 2, then the clamping block 44 in the sliding groove 43 on the surface of the mounting block 41 is moved by the control handle 45, at the moment, the control handle 45 is used for increasing the contact area between the hand of an operator and the clamping block 44, so that the operator can easily move the clamping block 44, then the clamping block 44 clamps the connecting block 42, then the second bolt 47 in the additional plate 46 is rotated, the second bolt 47 is close to the clamping block 44, and then the position of the clamping block 44 is limited by the second bolt 47, so that the condition that the clamping block 44 is separated from the connecting block 42 is avoided as much as possible.
Next, the ring block 301 is quickly fixed to the surface of the second pipe 2, the rubber ring 306 is fitted over the junction of the first pipe 1 and the second pipe 2, then the end of the rubber ring 306 with the protruding block 312 is abutted against the ring block 301 with the positioning ring 313, when the junction of the protruding block 312 and the rubber ring 306 and the end of the positioning ring 313 away from the ring block 301 are parallel, it is determined that the rubber ring 306 reaches the proper position, and then the first bolt 303 is turned by the operation block 307 with the rectangular block 311, so that the first bolt 303 is turned inside the threaded hole 304 on the surface of the fixed block 302.
The first bolt 303 drives the moving block 305 to approach the rubber ring 306, at this time, the moving block 305 drives the guide block 308 with the baffle 310 to move, then the guide block 308 slides in the guide hole 309 on the surface of the fixed block 302, then the guide block 308 limits the moving track of the moving block 305, so that the moving block 305 is prevented from rotating with the first bolt 303, at this time, the baffle 310 at one end of the moving block 305 far away from the guide block 308 limits the maximum displacement of the guide block 308, the condition that the guide block 308 is separated from the fixed block 302 through the guide hole 309 on the surface of the fixed block 302 is avoided as much as possible, then the moving block 305 is abutted with the rubber ring 306, then the operation is repeated, so that all the moving blocks 305 are abutted and fixed with the rubber ring 306, and then the rubber ring 306 is fixed at the joint of the first pipeline 1 and the second pipeline 2.
Then, shelter from the seal to the gap between first pipeline 1 and the second pipeline 2 through rubber circle 306, then come to promote the leakproofness between first pipeline 1 and the second pipeline 2, avoid the sea water to permeate to the riser inside through the gap between first pipeline 1 and the second pipeline 2, the condition that leads to influencing the riser result of use takes place, then insert the one end of reinforcing piece 52 inside the placing block 53 that the first pipeline 1 surface had guide block 55, place the piece 53 surface guide block 55 this moment, increase the entry size of placing block 53, and guide the travel path of reinforcing piece 52, make reinforcing piece 52 insert more easily inside placing block 53.
After the other end of the reinforcing block 52 is attached to the fixing block 302, the third bolt 51 is rotated so that the third bolt 51 passes through the reinforcing block 52 and the fixing plate, the reinforcing block 52 and the fixing plate are fixed, then the fourth bolt 54 is rotated so that the fourth bolt 54 passes through the placing block 53 and is fixed to the reinforcing block 52, then the nut 56 is rotated to limit the third bolt 51, and then the strength of the connection between the first pipe 1 and the second pipe 2 is improved by the reinforcing block 52.

Claims (10)

1. A marine deep water drilling riser, comprising:
a first pipe (1) and a second pipe (2) connected to the end of the first pipe (1);
the sealing device (3) is arranged at the joint of the first pipeline (1) and the second pipeline (2);
the sealing device (3) is connected with the second pipeline (2) through a plurality of installation components (4), and the sealing device (3) comprises:
the surface of the circular ring block (301) is fixedly connected with a plurality of fixed blocks (302), and the fixed blocks (302) are arranged at equal intervals on the circumference of the surface of the circular ring block (301);
the surface of the fixed block (302) is in threaded connection with a first bolt (303), a threaded hole (304) is formed in the surface of the first fixed block (302), the size of the first bolt (303) is matched with the size of the threaded hole (304), one end of the first bolt (303) is rotationally connected with a moving block (305), and a rubber ring (306) is sleeved at the joint of the first pipeline (1) and the second pipeline (2);
the size of the rubber ring (306) is matched with the sizes of the first pipeline (1) and the second pipeline (2);
the moving block (305) is abutted with the rubber ring (306);
one end that movable block (305) was kept away from to first bolt (303) is fixedly connected with operation piece (307), and one end that movable block (305) is close to fixed block (302) is fixedly connected with guide block (308), and guide hole (309) have been seted up on the surface of fixed block (302), and guide block (308) size and fixed block (302) surface guide hole (309) size looks adaptation, guide block (308) and fixed block (302) sliding connection.
2. The marine deep well riser of claim 1 wherein: one end of the guide block (308) far away from the moving block (305) is fixedly connected with a baffle plate (310), and the size of the baffle plate (310) is larger than that of a guide hole (309) on the surface of the fixed block (302).
3. The marine deep well riser of claim 1 wherein: the two sides of the operation block (307) are fixedly connected with a plurality of rectangular blocks (311), the rectangular blocks (311) are equally divided into two groups, and the rectangular blocks (311) in the two groups are equidistantly arranged on the two sides of the operation block (307).
4. The marine deep well riser of claim 1 wherein: the rubber ring (306) is close to one end fixedly connected with protruding piece (312) of ring piece (301), protruding piece (312) is close to the size of rubber ring (306) one end and is greater than the size of the other end, the fixed surface of ring piece (301) is connected with holding ring (313), the size of holding ring (313) and the size looks adaptation of protruding piece (312).
5. The marine deep well riser of claim 1 wherein: the utility model provides a plurality of installation component (4) include installation piece (41), installation piece (41) and second pipeline (2) fixed connection, the inside of installation piece (41) is inserted and is equipped with connecting block (42), connecting block (42) and ring piece (301) fixed connection, spout (43) have been seted up to the one end that ring piece (301) was kept away from to installation piece (41), the inside sliding connection of installation piece (41) surface spout (43) has fixture block (44), fixture block (44) and connecting block (42) joint, one side fixedly connected with additional board (46) of installation piece (41), the inside screw thread of additional board (46) is inserted and is equipped with second bolt (47).
6. The marine deep well riser of claim 5 wherein: one end of the clamping block (44) far away from the connecting block (42) is fixedly connected with a control handle (45), and the section of the control handle (45) is L-shaped.
7. The marine deep well riser of claim 6 wherein: the second bolt (47) is positioned at one end of the baffle plate (310) close to the control handle (45), and the size of the second bolt (47) is matched with the size of the baffle plate (310).
8. The marine deep well riser of claim 1 wherein: the surface of fixed block (302) is equipped with reinforcing means (5), reinforcing means (5) are including third bolt (51), third bolt (51) and fixed block (302) fixed connection, the surface threaded connection of third bolt (51) has reinforcing block (52), the fixed surface of first pipeline (1) is connected with places piece (53), the surface screw thread of placing piece (53) is inserted and is equipped with fourth bolt (54), fourth bolt (54) and reinforcing block (52) threaded connection.
9. The marine deep well riser of claim 8 wherein: one end of the placing block (53) far away from the first pipeline (1) is fixedly connected with a guide block (55), and the size of the guide block (55) is matched with the size of the placing block (53).
10. The marine deep well riser of claim 8 wherein: and one end, far away from the reinforcing block (52), of the third bolt (51) is fixedly connected with a nut (56), and the nut (56) is positioned at one end, far away from the reinforcing block (52), of the fixed block (302).
CN202310599785.8A 2023-05-25 2023-05-25 Marine deepwater drilling riser Active CN116291244B (en)

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CN218408864U (en) * 2022-11-02 2023-01-31 黑龙江新禹水泥制品有限公司 Cement pipe connecting structure and fixing mechanism thereof

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