CN116877001A - Riser sealing device for umbilical cable clamping - Google Patents
Riser sealing device for umbilical cable clamping Download PDFInfo
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- CN116877001A CN116877001A CN202311009550.5A CN202311009550A CN116877001A CN 116877001 A CN116877001 A CN 116877001A CN 202311009550 A CN202311009550 A CN 202311009550A CN 116877001 A CN116877001 A CN 116877001A
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- cover plate
- grooves
- groove
- sealing rubber
- sealing
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
- E21B17/026—Arrangements for fixing cables or wirelines to the outside of downhole devices
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a riser sealing device for a clamp umbilical cable, which comprises: the clamping bodies are arranged along the axial direction of the marine riser, and the adjacent clamping bodies are connected through buckles; the clamp body is cylindrical, and it includes: the top surface of the first cover plate is an arc surface, and the bottom surface of the first cover plate is a plane; a plurality of first grooves are formed in the bottom of the first cover plate; the top surface and the bottom of the second cover plate are respectively plane surfaces, and the two sides of the second cover plate are respectively cambered surfaces; the top of the second cover plate is provided with a plurality of second grooves, and the bottom of the second cover plate is provided with a third groove; the second groove and the first groove corresponding to the second groove are combined to form a first cylindrical cavity for clamping the umbilical cable; the top surface of the third cover plate is a plane, and the bottom surface of the third cover plate is an arc surface; a fourth groove is formed in the top of the third cover plate, and the fourth groove and the third groove are combined to form a second cylindrical cavity for clamping the marine riser; the first cover plate and the second cover plate are connected through a hinge and are fixed through pillow pins; the second cover plate is connected with the third cover plate through an anti-falling bolt.
Description
Technical Field
The invention belongs to the technical field of petroleum wellhead devices and christmas tree devices, and particularly relates to a riser sealing device for clamping umbilical cables.
Background
With the development of the process and problems actually occurring in the working field, requirements are made of long-term use of wellhead umbilical cables and leakage of exhaust gas near the drill floor. In the conventional operation, when the operation platform floats up and down along with waves, the umbilical cable is extremely easy to damage.
Disclosure of Invention
The invention aims to provide a riser sealing device for clamping an umbilical cable, which can safely protect the cable or a hydraulic control line in a body and can clamp a marine riser at the same time.
The technical scheme provided by the invention is as follows:
a riser sealing device for a hugging umbilical comprising:
the clamping bodies are arranged along the axial direction of the marine riser, and the adjacent clamping bodies are connected through buckles;
the embracing clamp body is cylindrical, and comprises:
the top surface of the first cover plate is an arc surface, and the bottom surface of the first cover plate is a plane; a plurality of first grooves are formed in the bottom of the first cover plate, the first grooves are semi-cylindrical, and the axial direction of the first grooves is parallel to the axial direction of the first cover plate;
the top surface and the bottom of the second cover plate are respectively plane surfaces, and the two sides of the second cover plate are respectively cambered surfaces; a plurality of second grooves are formed in the top of the second cover plate, a third groove is formed in the bottom of the second cover plate, the second grooves and the third grooves are all semi-cylindrical, and the axial directions of the second grooves and the third grooves are all parallel to the axial direction of the second cover plate;
the first grooves and the second grooves are arranged in one-to-one correspondence, and the second grooves and the corresponding first grooves are combined to form a first cylindrical cavity; the umbilical cables are arranged in one-to-one correspondence with the first cylindrical cavities, and are clamped in the first cylindrical cavities;
the top surface of the third cover plate is a plane, and the bottom surface of the third cover plate is an arc surface; a fourth groove is formed in the top of the third cover plate, the fourth groove is a semicircular groove, and the axial direction of the fourth groove is parallel to the axial direction of the third cover plate;
wherein the fourth groove and the third groove are combined to form a second cylindrical cavity; the marine riser is clasped in the second cylindrical cavity;
the first cover plate and the second cover plate are connected through a hinge and are fixed through pillow pins; the second cover plate is connected with the third cover plate through an anti-falling bolt.
Preferably, the riser sealing device of the umbilical cable is further provided with:
the first sealing rubber strips are arranged at the bottom of the first cover plate in an embedded mode and are arranged at intervals along the axial direction of the clamping body;
the second sealing rubber strips are arranged on the top of the second cover plate in an embedded mode and are arranged in one-to-one symmetry with the first sealing rubber strips;
the first sealing rubber strip and the second sealing rubber strip transversely penetrate through the clamping body respectively, and two ends of the first sealing rubber strip and the second sealing rubber strip extend to the outer surface of the clamping body respectively.
Preferably, the riser sealing device of the umbilical cable is further provided with:
the third sealing rubber strips are arranged at the bottom of the second cover plate in an embedded mode and are arranged at intervals along the axial direction of the clamping body;
the plurality of fourth sealing rubber strips are arranged on the top of the third cover plate in an embedded mode and are arranged in one-to-one symmetry with the third sealing rubber strips;
the third sealing rubber strip and the fourth sealing rubber strip transversely penetrate through the clamping body respectively, and two ends of the third sealing rubber strip and the fourth sealing rubber strip extend to the outer surface of the clamping body respectively.
Preferably, a plurality of first adhesive tape mounting grooves are formed in the bottom of the first cover plate, and the first sealing adhesive tapes are correspondingly arranged in the first adhesive tape mounting grooves one by one;
a plurality of second adhesive tape mounting grooves are formed in the top of the second cover plate, and second sealing adhesive tapes are correspondingly arranged in the second adhesive tape mounting grooves one by one.
Preferably, a plurality of third adhesive tape mounting grooves are formed in the bottom of the second cover plate, and the third sealing adhesive tapes are correspondingly arranged in the third adhesive tape mounting grooves one by one;
a plurality of fourth adhesive tape mounting grooves are formed in the top of the third cover plate, and fourth sealing adhesive tapes are correspondingly arranged in the fourth adhesive tape mounting grooves one by one.
Preferably, two ends of the first adhesive tape mounting groove, the second adhesive tape mounting groove, the third adhesive tape mounting groove and the fourth adhesive tape mounting groove are respectively provided with dovetail grooves.
Preferably, the riser sealing device of the clasping umbilical cable further comprises:
the two rotating shafts are rotatably arranged in the second cover plate, are arranged along the axial direction of the second cover plate and are respectively positioned at two ends of the second cover plate;
the hinge is two and corresponds to the two rotating shafts one by one; one end of the hinge is connected to the rotating shaft, and the other end of the hinge is fixedly connected with the first cover plate.
Preferably, the riser sealing device of the umbilical cable is further provided with:
the two limiting shafts are rotatably arranged in the second cover plate, are arranged along the axial direction of the second cover plate and are respectively positioned at two ends of the second cover plate;
the two limiting shafts are arranged opposite to the two rotating shafts, the two limiting shafts are arranged close to one cambered surface of the second cover plate, and the two rotating shafts are arranged close to the other cambered surface of the second cover plate;
four pillow pin mounting grooves which are formed in the first cover plate;
the four pillow pins are cylindrical, are arranged in the pillow pin mounting grooves in a one-to-one correspondence manner, and are parallel to the axis direction of the first cover plate;
the four locking bolts are arranged in one-to-one correspondence with the pillow pins; one end of the locking bolt is connected in the pillow pin, and the other end of the locking bolt penetrates through the pillow pin in the radial direction and is connected with the limiting shaft or the rotating shaft;
wherein, a through groove is formed at the joint of the first cover plate and the second cover plate, and one end of the through groove is communicated with the pillow pin mounting groove; the locking bolt can rotate along the through groove.
Preferably, the riser sealing device of the umbilical cable is further provided with:
and the two locating pins are arranged on the first cover plate and are in one-to-one correspondence with the hinges and used for fixing the hinges on the first cover plate.
The beneficial effects of the invention are as follows:
the riser sealing device for the clamping umbilical cable can seal and dredge the leaked waste gas in the marine riser on the fluctuant platform while protecting the umbilical cable; and the difficulty of personnel operation can be reduced, the safety of operation is improved, and the risk of wellhead falling objects is reduced.
Drawings
FIG. 1 is a front view of a riser seal for a hug umbilical in accordance with the present invention.
Fig. 2 is a rear view of a riser seal for a hug umbilical in accordance with the present invention.
FIG. 3 is a left side view of a riser seal for a hug umbilical in accordance with the present invention.
Fig. 4 is a sectional view of E-E in fig. 3.
Fig. 5 is a cross-sectional view of F-F in fig. 3.
Fig. 6 is a sectional view of G-G in fig. 1.
Fig. 7 is a schematic diagram of a connection structure between a pillow pin and a limiting shaft according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
The invention provides a riser sealing device for clamping umbilical cables, which comprises: the clamping bodies are arranged along the axial direction of the ocean (high pressure) vertical pipe, and the adjacent clamping bodies are connected through buckles.
As shown in fig. 1-7, the holding clamp body is cylindrical, and sequentially comprises from top to bottom: a first cover plate 1, a second cover plate 2 and a third cover plate 3.
The top surface of the first cover plate 1 is an arc surface, and the bottom surface is a plane. A plurality of first grooves 1a are formed in the bottom of the first cover plate 1; the first groove 1a is semi-cylindrical, and the axial direction of the first groove 1a is parallel to the axial direction of the first cover plate 1.
The top surface and the bottom of the second cover plate 2 are respectively plane surfaces, and two sides are respectively cambered surfaces. A plurality of second grooves 2a are formed in the top of the second cover plate 2, a third groove 2b is formed in the bottom of the second cover plate, the second grooves 2a and the third grooves 2b are all semi-cylindrical, and the axial directions of the third grooves of the second grooves 2a and 2b are all parallel to the axial direction of the second cover plate 2. The first grooves 1a and the second grooves 2a are arranged in a one-to-one correspondence, and the second grooves 2a and the corresponding first grooves 1a are combined to form a first cylindrical cavity; the umbilical cables 100 are arranged in one-to-one correspondence with the first cylindrical cavities, and the umbilical cables 100 are clasped in the first cylindrical cavities.
In this embodiment, the number of the first grooves 1a is 2, and correspondingly, the number of the first cylindrical cavities is 2; the inner diameter of the first cylindrical cavity is matched with the external dimension of the umbilical cable which is clamped with the first cylindrical cavity.
The top surface of the third cover plate 3 is a plane, and the bottom surface is an arc surface. A fourth groove 3a is formed in the top of the third cover plate 3, the fourth groove 3a is a semicircular groove, and the axial direction of the fourth groove 3a is parallel to the axial direction of the third cover plate 3. Wherein the fourth groove 3a and the third groove 2b are combined to form a second cylindrical cavity; marine riser 200 is captured in the second cylindrical cavity. The inner diameter of the second cylindrical cavity is matched with the outer diameter of the marine riser clamped by the second cylindrical cavity.
The first cover plate 1 and the second cover plate 2 are connected through a hinge 10 and are fixed through a pillow pin 6; the second cover plate 2 and the third cover plate 3 are connected through anti-drop bolts.
The first sealing rubber strips 17a are arranged at the bottom of the first cover plate 1 in an embedded mode, and the first sealing rubber strips 17a are arranged at intervals along the axial direction of the clamping body. A plurality of second joint strips 17b are embedded at the top of the second cover plate 2, and the second joint strips 17b are arranged in one-to-one symmetry with the first joint strips 17 a. The first sealing adhesive tape 17a and the second sealing adhesive tape 17b respectively transversely penetrate through the clamping body and encircle the two sides of the umbilical cable 100, and two ends of the first sealing adhesive tape 17a and the second sealing adhesive tape 17b respectively extend to the outer surface of the clamping body.
In this embodiment, a plurality of first adhesive tape mounting grooves are formed in the bottom of the first cover plate 1, and the first sealing adhesive tapes 17a are mounted in the first adhesive tape mounting grooves in a one-to-one correspondence manner; a plurality of second adhesive tape mounting grooves are formed in the top of the second cover plate 2, and second sealing adhesive tapes 17b are correspondingly arranged in the second adhesive tape mounting grooves one by one. Wherein, the shape of the first adhesive tape mounting groove at the position corresponding to the first groove 1a is an arc groove coaxial with the first groove 1a, and the shape of the second adhesive tape mounting groove at the position corresponding to the second groove 2a is an arc groove coaxial with the second groove 2 a; the two ends of the first adhesive tape mounting groove and the second adhesive tape mounting groove are respectively dovetail grooves.
The third sealing rubber strips 18a are arranged at the bottom of the second cover plate 2 in an embedded mode and are arranged at intervals along the axial direction of the clamping body; a plurality of fourth sealing rubber strips 18b are arranged on the top of the third cover plate 3 in an embedded mode, and the fourth sealing rubber strips 18b and the third sealing rubber strips 18a are arranged in a one-to-one symmetry mode. The third sealing rubber strip 18a and the fourth sealing rubber strip 18b respectively transversely penetrate through the clamping body and encircle the two sides of the marine riser, and two ends of the third sealing rubber strip 18a and the fourth sealing rubber strip 18b respectively extend to the outer surface of the clamping body.
In this embodiment, a plurality of third adhesive tape mounting grooves are formed in the bottom of the second cover plate 2, and third sealing adhesive tapes 18a are mounted in the third adhesive tape mounting grooves in a one-to-one correspondence manner; a plurality of fourth adhesive tape mounting grooves are formed in the top of the third cover plate 3, and fourth sealing adhesive tapes 18b are correspondingly arranged in the fourth adhesive tape mounting grooves one by one. Wherein the shape of the third adhesive tape mounting groove at the position corresponding to the third groove 2b is an arc-shaped groove coaxial with the third groove 2a, and the shape of the fourth adhesive tape mounting groove at the position corresponding to the fourth groove 3a is an arc-shaped groove coaxial with the fourth groove 3 a; and the two ends of the third adhesive tape mounting groove and the fourth adhesive tape mounting groove are respectively dovetail grooves.
The first sealing adhesive tape 17a, the second sealing adhesive tape 17b, the third sealing adhesive tape 18a and the fourth sealing adhesive tape 18b are made of rubber, the sealing adhesive tapes are plugged into corresponding grooves, and after the two edges of the bending adhesive tapes are plugged into the grooves at the dovetail groove parts corresponding to the two ends, the middle part of the adhesive tapes is knocked into the dovetail groove by using a rubber hammer.
Sealing rubber strips are respectively designed between the first cover plate 1 and the second cover plate 2, between the second cover plate 2 and the third cover plate 3, umbilical cables and marine risers are sealed, the distribution of the sealing rubber strips is set according to the length of a sealing structure outside the system, the outer sealing length is ensured to be met by the rubber strip distance between each two sections and each section, and the riser sealing device of the whole clamp umbilical cables can realize effective sealing on any section of the marine risers under the fluctuation of a platform.
The plane joint position structure of the sealing rubber strip (two ends) is dovetail embedded and is matched with the cover plate body, so that the anti-drop function can be realized when the sealing rubber strip is disassembled, assembled and maintained each time; the joint strip base pipe cooperation position is the embedding nature, and the apron body is embedded to adhesive tape part, when bearing pressure, can play certain restriction effect to the axial displacement of adhesive tape, keeps joint strip's leakproofness.
Meanwhile, support gaskets are arranged between the first cover plate 1 and the second cover plate 2 and between the second cover plate 2 and the third cover plate 3, and the support gaskets are arranged between the axially adjacent sealing rubber strips, so that deformation of the cover plate body in the assembly process due to overlong spans between the sealing rubber strips is avoided; meanwhile, when the sealing device outside the system holds the vertical pipe sealing device tightly, the sealing device plays a supporting role, and the clamping force of the external sealing device is prevented from being too large, so that the vertical pipe sealing device is prevented from being pinched off. Wherein the support pads are fixed to the respective cover plates by screws 20.
The riser sealing device of the clamping umbilical cable further comprises: the two rotating shafts 8 and 9 are respectively and rotatably arranged in the second cover plate 2, the rotating shafts 8 and 9 are respectively arranged along the axial direction of the second cover plate 2, the rotating shafts 8 and 9 are respectively arranged at two axial ends of the second cover plate 2, and the rotating shafts 8 and 9 are simultaneously arranged close to one transverse end (the same cambered surface) of the second cover plate 2. Preferably, the rotary shaft 8 and the rotary shaft 9 are respectively sleeved with a sealing ring 19. The hinge 10 is two and corresponds to the rotating shafts 8 and 9 one by one; one end of the hinge 10 is fixedly connected to the rotating shaft 8 or the rotating shaft 9, and the other end of the hinge is fixedly connected with the first cover plate 1. Wherein, the first cover plate 1 and the second cover plate 2 are provided with through grooves at the rotating positions corresponding to the hinges 10, so that the hinges 10 can freely rotate in the through grooves. The first cover plate 1 and the second cover plate 2 are connected at one transverse end through the hinge 10, so that the operation is convenient, and the cover plate can be prevented from falling off.
The two limiting shafts 4 and 5 are rotatably arranged in the second cover plate 2, the limiting shafts 4 and 5 are arranged along the axial direction of the second cover plate 2, and the limiting shafts 4 and 5 are respectively positioned at two ends of the second cover plate 2; wherein, spacing axle 4 and 5 and pivot 9 and 8 set up relatively respectively, and spacing axle 4 and 5 are close to another cambered surface (the cambered surface that keeps away from pivot 9 and 8) of second apron 2 and set up.
The four pillow pin mounting grooves are formed in the first cover plate 1; four pillow pins 6 are arranged in the pillow pin mounting grooves in a one-to-one correspondence manner, the pillow pins 6 are cylindrical, and the axis direction of the pillow pins 6 is parallel to the axis direction of the first cover plate 1. The four locking bolts 7 are arranged in one-to-one correspondence with the pillow pins 6; one end of the locking bolt 7 is fixedly connected in the 6 pillow pin, and the other end of the locking bolt penetrates through the pillow pin 6 in the radial direction and is connected with the limit shaft 4/5 or the rotating shaft 8/9. Wherein, the pillow pin 6 is in one-to-one correspondence with the limit shaft 4/5 or the rotating shaft 8/9. Four through grooves 6a are formed in the joint of the first cover plate 1 and the second cover plate 2, the positions of the four through grooves 6a correspond to the positions of the four locking bolts 7 one by one, and one end of each through groove 6a is communicated with the pillow pin mounting groove; the lock bolts 7 can be turned along their corresponding through slots 6 a. By pulling the pillow pin 6, the locking bolt 7 is moved (rotated) along its corresponding through groove 6a, and when the pillow pin 6 is pushed into the pillow pin installation groove, the first cover plate 1 and the second cover plate 2 are locked, and when the pillow pin 6 is pulled out of the pillow pin installation groove, the first cover plate 1 and the second cover plate 2 can be unlocked.
In this embodiment, the pillow pin 6 is provided with a counterbore in which the nut of the lock bolt 7 sits.
Through setting up columniform pillow round pin 6, on anti-drop's design basis, increased the area of action of bolt locking force to first apron 1 again, make first apron 1 more even to joint strip's extrusion force distribution, sealing performance is better.
The hinge 10 is fixed on the first cover plate 1 through a locating pin 11; the positioning pins 11 are split pins and are arranged in one-to-one correspondence with the hinges 10; the hinge 10 is provided with a pin hole along the axial direction, the first cover plate 1 is provided with a pin hole coaxially corresponding to the hinge 10, and the positioning pin 11 is simultaneously assembled in the pin holes of the hinge 10 and the first cover plate to fix one end of the hinge 10 on the first cover plate 1.
The second cover plate 2 and the third cover plate 3 are connected by adopting an anti-falling bolt 13, so that falling objects at the wellhead are prevented; the installation of umbilical cable, need erect the riser, personnel need stand on the high bench when installing the umbilical cable, in order to avoid too much complicacy operation, design first apron 1 into hinge connection form. After the umbilical cable is fixed, the umbilical cable can be clamped by closing the hinge 10, so that the operation safety is improved.
In the embodiment, the anti-falling bolt 13 is perpendicular to the bottom surface of the second cover plate 2 and the top surface of the third cover plate 3, and the nut 14, the gasket 15 and the clamp spring 16 of the anti-falling bolt 13 are arranged in the third cover plate 3; the nut of the anti-drop bolt 13 is arranged in a counter bore of the second cover plate 2, and a flat pad 12 is arranged in the counter bore.
Preferably, a clamping groove (groove) is formed in one end of the second cover plate 2, a clamping table 2c matched with the clamping groove is arranged at the other end of the second cover plate 2, and rotation prevention is achieved through cooperation of the clamping groove and the clamping table 2 c. Thereby avoiding the possibility that the umbilical cable and the marine riser are damaged due to torsion of the pipe string caused by external factors during operation. One end of the third cover plate 3 is provided with an arc-shaped boss 3b, and the other end of the third cover plate is provided with a groove matched with the arc-shaped boss 3b so as to realize connection of two adjacent third cover plates 3. As a further preference, the bottom of the arc-shaped boss 3b is provided with an anti-rotation plane 3c, and an anti-rotation plane is also arranged in the corresponding groove, so that the connected third cover plates 3 can be prevented from rotating mutually by arranging the anti-rotation plane.
The using method of the riser sealing device for the clamp umbilical cable provided by the invention comprises the following steps:
the first sealing rubber strip 17a, the second sealing rubber strip 17b, the third sealing rubber strip 18a and the fourth sealing rubber strip 18b are respectively filled into the corresponding cover plates through dovetail grooves, and the supporting gasket is arranged between the two corresponding cover plates.
The hinge 10 is clamped into a hinge mounting groove of the first cover plate groove 1 and is positioned by a mounting pin 11; the first cover plate is in butt joint with the second cover plate 2. The rotating shafts 8, 9 and the limiting shafts 4, 5 are respectively inserted into corresponding holes in the second cover plate 2. In the anti-drop bolt component, a nut 14, a gasket 15 and a clamp spring 16 are arranged in the third cover plate 3; and a plurality of third cover plates 3 are sequentially clamped together, and the marine riser is rested in a fourth groove 3a in the third cover plates 3.
The connecting body of the first cover plate 1 and the second cover plate 2 is sequentially buckled on the third cover plate 3, and the second cover plate 2 and the third cover plate 3 are tightly pressed by using the anti-falling bolts 13.
The pillow pin 6 is arranged in a pillow pin mounting groove of the first cover plate 1, and the bolt 7 passes through the pillow pin 6 and is positioned in the holes of the hinge rotating shafts 8 and 9 and the limiting shafts 4 and 5. The pillow pin 6 is pulled outwards, so that the pillow pin 6 is separated from the pillow pin mounting groove, and the first cover plate 1 is opened.
The marine riser is erected, umbilical cables are dredged and placed in the corresponding semi-cylindrical grooves, the first cover plate 1 is buckled back, the sleeper pins 6 are pushed inwards, the sleeper pins 6 are clamped into the sleeper pin mounting grooves, and the first cover plate 1 is pressed.
The riser sealing device for clamping the umbilical cable solves the problem that an offshore operation platform floats along with waves and the sealing of the device on the marine riser is difficult; the marine riser leakage exhaust gas can be dredged by being matched with the rotary sprayer, and the safety is prevented from being influenced by the leakage of the marine riser.
The vertical pipe sealing device for clamping the umbilical cable can effectively protect the umbilical cable, and solves the problem that the umbilical cable is extruded and damaged at the platform; the risk of falling objects at the wellhead due to the fact that personnel carry tools to be installed on the platform is avoided; meanwhile, the problem of sealing stability of the strip-shaped sealing piece is solved.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. A riser sealing device for a hugging umbilical comprising:
the clamping bodies are arranged along the axial direction of the marine riser, and the adjacent clamping bodies are connected through buckles;
the embracing clamp body is cylindrical, and comprises:
the top surface of the first cover plate is an arc surface, and the bottom surface of the first cover plate is a plane; a plurality of first grooves are formed in the bottom of the first cover plate, the first grooves are semi-cylindrical, and the axial direction of the first grooves is parallel to the axial direction of the first cover plate;
the top surface and the bottom of the second cover plate are respectively plane surfaces, and the two sides of the second cover plate are respectively cambered surfaces; a plurality of second grooves are formed in the top of the second cover plate, a third groove is formed in the bottom of the second cover plate, the second grooves and the third grooves are all semi-cylindrical, and the axial directions of the second grooves and the third grooves are all parallel to the axial direction of the second cover plate;
the first grooves and the second grooves are arranged in one-to-one correspondence, and the second grooves and the corresponding first grooves are combined to form a first cylindrical cavity; the umbilical cables are arranged in one-to-one correspondence with the first cylindrical cavities, and are clamped in the first cylindrical cavities;
the top surface of the third cover plate is a plane, and the bottom surface of the third cover plate is an arc surface; a fourth groove is formed in the top of the third cover plate, the fourth groove is a semicircular groove, and the axial direction of the fourth groove is parallel to the axial direction of the third cover plate;
wherein the fourth groove and the third groove are combined to form a second cylindrical cavity; the marine riser is clasped in the second cylindrical cavity;
the first cover plate and the second cover plate are connected through a hinge and are fixed through pillow pins; the second cover plate is connected with the third cover plate through an anti-falling bolt.
2. The riser seal of a hugging umbilical of claim 1, further comprising:
the first sealing rubber strips are arranged at the bottom of the first cover plate in an embedded mode and are arranged at intervals along the axial direction of the clamping body;
the second sealing rubber strips are arranged on the top of the second cover plate in an embedded mode and are arranged in one-to-one symmetry with the first sealing rubber strips;
the first sealing rubber strip and the second sealing rubber strip transversely penetrate through the clamping body respectively, and two ends of the first sealing rubber strip and the second sealing rubber strip extend to the outer surface of the clamping body respectively.
3. The riser seal of a hugging umbilical of claim 2, further comprising:
the third sealing rubber strips are arranged at the bottom of the second cover plate in an embedded mode and are arranged at intervals along the axial direction of the clamping body;
the plurality of fourth sealing rubber strips are arranged on the top of the third cover plate in an embedded mode and are arranged in one-to-one symmetry with the third sealing rubber strips;
the third sealing rubber strip and the fourth sealing rubber strip transversely penetrate through the clamping body respectively, and two ends of the third sealing rubber strip and the fourth sealing rubber strip extend to the outer surface of the clamping body respectively.
4. The riser sealing device for the umbilical cord of the clamp of claim 3, wherein a plurality of first adhesive tape mounting grooves are formed in the bottom of the first cover plate, and the first sealing adhesive tapes are mounted in the first adhesive tape mounting grooves in a one-to-one correspondence;
a plurality of second adhesive tape mounting grooves are formed in the top of the second cover plate, and second sealing adhesive tapes are correspondingly arranged in the second adhesive tape mounting grooves one by one.
5. The riser sealing device of the clamp umbilical of claim 4, wherein a plurality of third adhesive tape mounting grooves are formed in the bottom of the second cover plate, and the third sealing adhesive tapes are mounted in the third adhesive tape mounting grooves in a one-to-one correspondence;
a plurality of fourth adhesive tape mounting grooves are formed in the top of the third cover plate, and fourth sealing adhesive tapes are correspondingly arranged in the fourth adhesive tape mounting grooves one by one.
6. The riser seal of a hug umbilical of claim 5, wherein two ends of the first, second, third, and fourth adhesive strip mounting grooves are provided as dovetail grooves, respectively.
7. The riser seal of a hugging umbilical of claim 6, further comprising:
the two rotating shafts are rotatably arranged in the second cover plate, are arranged along the axial direction of the second cover plate and are respectively positioned at two ends of the second cover plate;
the hinge is two and corresponds to the two rotating shafts one by one; one end of the hinge is connected to the rotating shaft, and the other end of the hinge is fixedly connected with the first cover plate.
8. The riser seal of a hugging umbilical of claim 7, further comprising:
the two limiting shafts are rotatably arranged in the second cover plate, are arranged along the axial direction of the second cover plate and are respectively positioned at two ends of the second cover plate;
the two limiting shafts are arranged opposite to the two rotating shafts, the two limiting shafts are arranged close to one cambered surface of the second cover plate, and the two rotating shafts are arranged close to the other cambered surface of the second cover plate;
four pillow pin mounting grooves which are formed in the first cover plate;
the four pillow pins are cylindrical, are arranged in the pillow pin mounting grooves in a one-to-one correspondence manner, and are parallel to the axis direction of the first cover plate;
the four locking bolts are arranged in one-to-one correspondence with the pillow pins; one end of the locking bolt is connected in the pillow pin, and the other end of the locking bolt penetrates through the pillow pin in the radial direction and is connected with the limiting shaft or the rotating shaft;
wherein, a through groove is formed at the joint of the first cover plate and the second cover plate, and one end of the through groove is communicated with the pillow pin mounting groove; the locking bolt can rotate along the through groove.
9. The riser seal of a hugging umbilical of claim 8, further comprising:
and the two locating pins are arranged on the first cover plate and are in one-to-one correspondence with the hinges and used for fixing the hinges on the first cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311009550.5A CN116877001A (en) | 2023-08-11 | 2023-08-11 | Riser sealing device for umbilical cable clamping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311009550.5A CN116877001A (en) | 2023-08-11 | 2023-08-11 | Riser sealing device for umbilical cable clamping |
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| CN116877001A true CN116877001A (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311009550.5A Pending CN116877001A (en) | 2023-08-11 | 2023-08-11 | Riser sealing device for umbilical cable clamping |
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