CN215520801U

CN215520801U - System for hoisting riser pipe and hoisting device

Info

Publication number: CN215520801U
Application number: CN202121202454.9U
Authority: CN
Inventors: 傅超; 杨进; 贺馨悦; 魏庆峰; 朱春霖; 马阔
Original assignee: China University of Petroleum Beijing
Current assignee: China University of Petroleum Beijing
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-01-14
Anticipated expiration: 2031-05-31

Abstract

The utility model provides a system for hoisting a riser pipe and a hoisting device, wherein the system for hoisting the riser pipe comprises: the riser comprises a riser, a locking mechanism and a plurality of hoop bodies, wherein the hoop bodies can be sleeved outside the riser, are distributed circumferentially around the axis of the riser, and are detachably connected together; the hoop body is provided with a first bearing part, at least one riser pipe is provided with a second bearing part matched with the first bearing part, and the hoop body can apply upward force to the riser pipe through the first bearing part and the second bearing part. By the aid of the method, the technical problem that hoisting operation of the riser pipe is time-consuming and labor-consuming is solved.

Description

System for hoisting riser pipe and hoisting device

Technical Field

The utility model relates to the field of ocean exploration engineering, in particular to a system for hoisting a riser and a hoisting device.

Background

The large-scale offshore oil platform has more wellheads. The number of risers is increasing with the number of wellheads. The riser pipe is short in single section and multiple in sections, and needs to be hoisted section by section and lowered section by section and connected.

At present, use board-like lug to hoist riser pipe usually, board-like lug welding is on riser pipe, and hoist and mount are connected and are accomplished the back, need through artifical cutting to the excision lug, and polish the back to the incision, just can go into the certain degree of depth of mud face with riser pipe, this kind of mode, it is consuming time longer, efficiency is slower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a system and a hoisting device for hoisting a riser pipe, so as to solve the technical problem that the hoisting operation of the riser pipe is time-consuming and labor-consuming.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a system for hoisting a riser, which comprises: the riser comprises a riser, a locking mechanism and a plurality of hoop bodies, wherein the hoop bodies can be sleeved outside the riser, are distributed circumferentially around the axis of the riser, and are detachably connected together;

the hoop body is provided with a first bearing part, at least one riser pipe is provided with a second bearing part matched with the first bearing part, and the hoop body can apply upward force to the riser pipe through the first bearing part and the second bearing part.

In a preferred embodiment, the locking mechanism includes longitudinal support plates extending in an axial direction of the hoop bodies, at least one of the longitudinal support plates of one hoop body abuts against at least one of the longitudinal support plates of the other hoop body when two adjacent hoop bodies are circumferentially distributed around an axis of the riser pipe, and a locking bolt locks the longitudinal support plates of the two hoop bodies together.

In a preferred embodiment, the locking mechanism includes a transverse support plate and a locking bolt, an included angle between the transverse support plate and the axial direction of the hoop body is greater than 0, when two adjacent hoop bodies are distributed circumferentially around the axis of the riser, at least one transverse support plate of one hoop body abuts against at least one transverse support plate of the other hoop body, and the locking bolt locks the transverse support plates of the two hoop bodies together.

In a preferred embodiment, the locking mechanism comprises a longitudinal support plate, a transverse support plate and a locking bolt, wherein the longitudinal support plate extends along the axial direction of the hoop body; the included angle between the transverse support plate and the hoop body in the axial direction is larger than 0, the transverse support plate is fixedly connected with the longitudinal support plate, and the transverse support part comprises a transverse abutting part; when two adjacent hoop bodies are distributed circumferentially around the axis of the riser, at least one longitudinal support plate of one hoop body abuts against at least one longitudinal support plate of the other hoop body, at least one transverse abutment portion of one hoop body abuts against at least one transverse abutment portion of the other hoop body, and the locking bolt locks the transverse support plates of the two hoop bodies together.

In a preferred embodiment, the first bearing portion includes a protrusion disposed on an inner wall of the hoop body, and the second bearing portion includes a groove disposed on an outer wall of the riser pipe.

In a preferred embodiment, the bumps are rectangular.

In a preferred embodiment, the first bearing part is formed on the inner wall of the hoop body, and the inner wall of the hoop body is subjected to sand blasting treatment; the second bearing part is formed on the outer wall of the water-stop pipe which is subjected to sand blasting treatment.

In a preferred embodiment, the hoop body is provided with a lifting lug.

In a preferred embodiment, the riser pipe is provided with a casing thread at each of its upper and lower ends, the casing thread being a four-start thread.

The utility model provides a hoisting device, which is applied to the system for hoisting the riser, and comprises: the locking mechanism comprises a locking mechanism and a plurality of hoop bodies, wherein the hoop bodies can be distributed in a circumference shape and are connected into a ring body; at least one of the hoop bodies is provided with a first bearing part, and the hoop body can transmit upward force through the first bearing part.

The utility model has the characteristics and advantages that:

the system for hoisting the riser has the following advantages: (1) the hoop body is convenient to detach from the riser pipe and can be installed and detached as required; (2) the operation of cutting the lifting lug after the hoisting operation of the traditional riser pipe is omitted, the mounting operation time of the riser pipe is favorably shortened, the operation period is shortened, the hoisting efficiency is improved, the operation cost is saved, and the cost reduction and the efficiency improvement of construction are realized; (3) the detached hoop body can be used for next hoisting, the hoop body can be repeatedly utilized, materials are saved, the utilization rate is improved, and the operation cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a system for hoisting a riser provided by the present invention;

FIG. 2 is a schematic view of the riser pipe of the system of FIG. 1;

FIG. 3 is a partial schematic view of the riser pipe of FIG. 2;

fig. 4-6 are schematic structural views of the hoop body and the locking mechanism in the system shown in fig. 1.

The reference numbers illustrate:

10. a riser pipe; 11. threading the sleeve; 101. an external thread; 102. an internal thread;

20. a hoop body;

30. a locking mechanism; 31. locking the bolt; 32. a locking hole;

40. a longitudinal support plate; 50. a transverse support plate; 51. an abutting portion;

60. a first bearing part; 61. a bump;

70. a second bearing part; 71. a groove; 711. a top surface of the sidewall of the recess; 72. sand blasting;

80. lifting lugs; 81. and (4) hoisting holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The present invention provides a system for hoisting a riser, as shown in fig. 1, 2 and 4, the system for hoisting a riser comprises: the riser comprises a riser 10, a locking mechanism 30 and a plurality of hoop bodies 20, wherein the hoop bodies 20 can be sleeved outside the riser 10, the hoop bodies 20 are distributed circumferentially around the axis of the riser 10, and the locking mechanism 30 is configured to detachably connect the hoop bodies 20 together; the hoop body 20 is provided with a first bearing part 60, at least one riser pipe 10 is provided with a second bearing part 70 matched with the first bearing part 60, and the hoop body 20 can apply upward force to the riser pipe 10 through the first bearing part 60 and the second bearing part 70.

When the riser pipe 10 is lifted, the hoop bodies 20 are attached to the outer side wall of the riser pipe 10, the hoop bodies 20 are assembled into a ring shape, the hoop bodies 20 are locked together by the locking mechanism 30, and the hoop bodies 20 can drive the riser pipe 10 to move upwards through the first bearing part 60 and the second bearing part 70. The crane is connected to the hoop body 20, and the crane can lift the riser pipe 10 through the hoop body 20 to perform a lifting operation. After the hoisting is completed, the plurality of hoop bodies 20 are detached by the locking mechanism 30, the hoop bodies 20 can be detached from the riser pipe 10, and the hoop bodies 20 can be used for hoisting the next riser pipe 10. The system for hoisting the riser has the following advantages: (1) the hoop body 20 is convenient to detach from the riser pipe 10, and can be installed and detached as required; (2) the operation of cutting the lifting lug after the traditional riser pipe 10 is hoisted is omitted, so that the installation operation time of the riser pipe 10 is reduced, the operation period is shortened, the hoisting efficiency is improved, the operation cost is saved, and the cost reduction and the efficiency improvement of construction are realized; (3) the unloaded hoop body 20 can also be used for next hoisting, the hoop body 20 can be repeatedly used, materials are saved, the utilization rate is improved, and the operation cost is reduced.

In the system for hoisting riser pipes, the number of the hoop bodies 20 is greater than or equal to 2, and may be, for example, 2, 3 or 4. The hoop body 20 is arc-shaped and can be attached to the outer wall of the riser pipe 10. Preferably, the number of the hoop body 20 is 2, the hoop body 20 is in a semicircular ring shape,

in one embodiment, the locking mechanism 30 includes longitudinal support plates 40 and locking bolts 31, the longitudinal support plates 40 extend along the axial direction of the hoop bodies 20, when two adjacent hoop bodies 20 are distributed circumferentially around the axis of the riser pipe 10, at least one longitudinal support plate 40 of one hoop body 20 abuts against at least one longitudinal support plate 40 of the other hoop body 20, and the locking bolts 31 lock the longitudinal support plates 40 of the two hoop bodies 20 together. As shown in fig. 4 and 5, the longitudinal support plates 40 facilitate the locking together of two adjacent hoops 20, while bringing the hoops 20 into relatively close proximity to clamp the riser 10. The longitudinal support plate 40 may extend in a direction parallel to the axial direction of the hoop body 20. The longitudinal support plates 40 are provided with locking holes 32, and locking bolts are arranged in the locking holes 32 in a penetrating mode to clamp the two longitudinal support plates 40.

In one embodiment, the locking mechanism 30 includes a transverse support plate 50 and a locking bolt 31, an included angle between the transverse support plate 50 and the axial direction of the hoop body 20 is greater than 0, when two adjacent hoop bodies 20 are distributed circumferentially around the axis of the riser pipe 10, at least one transverse support plate 50 of one hoop body 20 abuts against at least one transverse support plate 50 of the other hoop body 20, and the locking bolt 31 locks the transverse support plates 50 of the two hoop bodies 20 together. As shown in fig. 4 and 5, the two adjacent hoop bodies 20 are prevented from relative movement in the longitudinal direction by the transverse support plate 50, and the two hoop bodies 20 can transmit the vertical force through the transverse support plate 50. The transverse support plates 50 are provided with locking holes 32, and locking bolts are arranged in the locking holes 32 in a penetrating mode to clamp the two transverse support plates 50. The included angle beta between the transverse support plate 50 and the axial direction of the hoop body 20 satisfies the following conditions: beta is 0 < beta.ltoreq.90 deg., and the transverse support plate 50 is preferably perpendicular to the axial direction of the hoop body 20.

In one embodiment, the locking mechanism 30 includes a longitudinal support plate 40, a lateral support plate 50, and a locking bolt 31, the longitudinal support plate 40 extending in the axial direction of the band body 20; the included angle between the transverse support plate 50 and the hoop body 20 in the axial direction is greater than 0, the transverse support plate 50 is fixedly connected to the longitudinal support plate 40, and the transverse support part comprises a transverse abutting part 51; when two adjacent hoop bodies 20 are distributed circumferentially around the axis of the riser pipe 10, at least one longitudinal support plate 40 of one hoop body 20 abuts against at least one longitudinal support plate 40 of the other hoop body 20, at least one transverse abutment 51 of one hoop body 20 abuts against at least one transverse abutment 51 of the other hoop body 20, and the locking bolt 31 locks the transverse support plates 50 of the two hoop bodies 20 together. As shown in fig. 4-6, the transverse support plates 50 and the longitudinal support plates 40 are staggered, so that two adjacent hoop bodies 20 can be connected more firmly, the hoop bodies 20 can clamp the riser pipe 10, relative movement between the two adjacent hoop bodies 20 is avoided, longitudinal force can be transmitted between the hoop bodies 20, and the reliability of the operation of each hoop body 20 is guaranteed. As shown in fig. 5 and 6, the lateral abutment 51 extends to the outside of the longitudinal support plate 40. Further, a plurality of longitudinally distributed transverse support plates 50 are attached to one of the longitudinal support plates 40. After the riser 10 is lifted to a designated position or the assembly and connection are completed, the locking bolt 31 can be unlocked manually, the hoop body 20 is removed, and the next step of work is facilitated.

In one embodiment, as shown in fig. 2 to 5, the first bearing part 60 includes a protrusion 61 disposed on an inner wall of the hoop body 20, and the second bearing part 70 includes a groove 71 disposed on an outer wall of the riser pipe 10. Before hoisting, the hoop body 20 is installed at the groove 71 of the riser 10, the projection 61 on the hoop body 20 is aligned with the groove 71 on the riser 10, the locking bolt 31 locks the hoop body 20, the projection 61 is embedded into the groove 71, and the projection 61 is combined with the groove 71 to limit the hoop body 20 from sliding relative to the riser 10, so that the connection strength of the hoop body 20 and the riser 10 is enhanced. Preferably, the outer wall of the riser pipe 10 is distributed with 4 grooves 71 along the circumferential direction, and the plurality of hoop bodies 20 are correspondingly provided with 4 protrusions 61.

Further, the protrusion 61 is rectangular, and the top surface of the protrusion 61 is matched with the top surface 711 of the side wall of the groove, so that the protrusion 61 can transmit upward force to the riser pipe 10. Furthermore, the top surface 711 of the groove side wall of the riser pipe 10 is provided with an inside cut angle, that is, the top surface 711 of the groove side wall is inclined upwards from the outside to the inside, when the riser pipe is lifted upwards by the hoop body 20, the top surface of the protrusion 61 of the hoop body 20 is tightly combined with the top surface 711 of the groove side wall, so that the combination of the protrusion 61 of the hoop body 20 and the groove 71 of the riser pipe 10 is strengthened, and the protrusion 61 can be prevented from slipping off the groove 71 in the lifting process. Preferably, the internal tangent angle is set to 45 °, i.e. the top surface 711 of the groove sidewall is angled at 45 ° with respect to the axial direction of the riser pipe 10.

In one embodiment, the first receiving portion 60 is formed on the inner wall of the hoop body 20, and the inner wall of the hoop body 20 is sandblasted; the second receiving portion 70 is formed on the outer wall of the riser pipe 10 subjected to the sand blasting. Through sand blasting, the contact friction of the hoop body 20 and the riser pipe 10 is increased, the holding force is enhanced, and the risk that the riser pipe 10 and the hoop body 20 slide off can be effectively eliminated. Specifically, as shown in fig. 2, the outer wall of the riser pipe 10 is provided with a sand blasting surface 72, and the second bearing part 70 includes the sand blasting surface 72.

As shown in fig. 4 and 5, the hoop body 20 is provided with a lifting lug 80 to facilitate connection with a crane. In an embodiment, each lifting lug 80 is provided with a circular lifting hole 81, and a crane hook passes through the circular lifting hole 81 to realize the lifting operation of the riser 10. The ear 80 may be connected to the hoop body 20 by welding. The floating crane is lifted from the barge, and the crane shackle passes through the lifting hole 81 of the lifting lug 80 to lift the riser pipe 10.

The upper end and the lower extreme of riser pipe 10 are equipped with sleeve pipe screw thread 11 respectively, and sleeve pipe screw thread 11 is four-wire thread, through adopting four-wire thread, and the reducible number of turns of detaining makes things convenient for the connection between riser pipe 10. As shown in fig. 1, the casing thread 11 at the upper end of the riser pipe 10 is an internal thread 102, and the casing thread 11 at the lower end of the riser pipe 10 is an external thread 101. This system of hoist and mount riser pipe improves hoop body 20, has carried out configuration optimization to riser pipe 10 simultaneously, can guarantee to hang when putting hoop body 20 and riser pipe 10 locking and do not break away from, guarantees the safe high efficiency of the operation of going into under the hoist and mount of riser pipe 10.

The hoisting process of the system for hoisting the riser comprises the following steps: (1) fixing the hoop body 20 outside the riser 10, and clamping the bump 61 into the groove 71; (2) locking the adjacent hoop bodies 20 by using the locking bolts 31 to ensure stable connection; (3) the crane hanging buckle passes through a hanging hole 81 of a lifting lug 80 on the hoop body 20 to lift the riser pipe 10; (4) after the riser pipe 10 reaches a preset position, the locking bolt 31 is removed, the connection between the groove 71 and the bump 61 is released, and the hoop body 20 is unloaded; (5) the riser pipe 10 is connected to the next riser pipe 10 by means of the casing threads 11 at the end of the riser pipe 10, and the run-in is completed.

Example two

The utility model provides a hoisting device, which comprises: the locking mechanism 30, a plurality of hoop bodies 20, the plurality of hoop bodies 20 can be distributed in a circumference shape and connected into a ring body, the locking mechanism 30 is configured to detachably connect the plurality of hoop bodies 20 together; at least one hoop body 20 is provided with a first bearing part 60, by means of which the hoop body 20 can transmit upward forces through the first bearing part 60.

This hoist device can be applied to foretell system of hoist riser pipe, and the loop wheel machine connects riser pipe 10 through this hoist device, realizes going into the operation under the hoist and mount of riser pipe 10, has following advantage: (1) the hoop body 20 is convenient to detach from the riser pipe 10 and can be installed and detached as required; (2) the operation of cutting the lifting lug 80 after the traditional riser pipe 10 is hoisted is omitted, so that the installation operation time of the riser pipe 10 is reduced, the operation period is shortened, the operation cost is saved, the hoisting efficiency is improved, and the cost reduction and the efficiency improvement of construction are realized; (3) the hoisting device can be used for next hoisting, can be repeatedly utilized, saves materials, improves the utilization rate and reduces the operation cost.

The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims

1. A system for hoisting riser pipes, comprising: the riser comprises a riser, a locking mechanism and a plurality of hoop bodies, wherein the hoop bodies can be sleeved outside the riser, are distributed circumferentially around the axis of the riser, and are detachably connected together;

2. The system for hoisting a riser pipe according to claim 1, wherein the locking mechanism comprises longitudinal support plates extending in the axial direction of the hoop bodies, at least one of the longitudinal support plates of one hoop body abutting against at least one of the longitudinal support plates of the other hoop body when two adjacent hoop bodies are circumferentially distributed around the axis of the riser pipe, and locking bolts locking the longitudinal support plates of the two hoop bodies together.

3. The system for hoisting a riser pipe according to claim 1, wherein the locking mechanism comprises a transverse support plate and a locking bolt, an included angle between the transverse support plate and the hoop body in the axial direction is greater than 0, when two adjacent hoop bodies are distributed circumferentially around the axis of the riser pipe, at least one transverse support plate of one hoop body abuts against at least one transverse support plate of the other hoop body, and the locking bolt locks the transverse support plates of the two hoop bodies together.

4. The system for hoisting riser pipes according to claim 1, wherein the locking mechanism comprises a longitudinal support plate, a transverse support plate and a locking bolt, the longitudinal support plate extending in the axial direction of the hoop body; the included angle between the transverse support plate and the hoop body in the axial direction is larger than 0, the transverse support plate is fixedly connected with the longitudinal support plate, and the transverse support part comprises a transverse abutting part;

when two adjacent hoop bodies are distributed circumferentially around the axis of the riser, at least one longitudinal support plate of one hoop body abuts against at least one longitudinal support plate of the other hoop body, at least one transverse abutment portion of one hoop body abuts against at least one transverse abutment portion of the other hoop body, and the locking bolt locks the transverse support plates of the two hoop bodies together.

5. The system for hoisting a riser pipe according to claim 1, wherein the first bearing part comprises a projection arranged on the inner wall of the hoop body, and the second bearing part comprises a groove arranged on the outer wall of the riser pipe.

6. The system for hoisting riser pipes according to claim 5, wherein the projections are rectangular.

7. The system for hoisting a riser according to claim 1, wherein the first bearing part is formed on the inner wall of the hoop body, and the inner wall of the hoop body is subjected to sand blasting; the second bearing part is formed on the outer wall of the water-stop pipe which is subjected to sand blasting treatment.

8. The system for hoisting riser pipes according to claim 1, wherein the hoop body is provided with a lifting lug.

9. The system for hoisting a riser pipe according to claim 1, wherein the riser pipe is provided with a casing thread at each of its upper and lower ends, the casing thread being a four-start thread.

10. A hoisting device for use in a system for hoisting riser pipes according to any one of claims 1-9, the hoisting device comprising: the locking mechanism comprises a locking mechanism and a plurality of hoop bodies, wherein the hoop bodies can be distributed in a circumference shape and are connected into a ring body; at least one of the hoop bodies is provided with a first bearing part, and the hoop body can transmit upward force through the first bearing part.