CN218712792U - Sectional type simple three-leg wellhead platform - Google Patents

Abstract

The utility model relates to a simple and easy three-legged well head platform of sectional type, including the lower part basic module that sets gradually from bottom to top, jacket module and upper portion chunk module, lower part basic module includes a plurality of first main legs, the jacket module includes a plurality of second main legs, be equipped with a plurality of guide posts in the basic module of lower part, the guide post is connected through the mode of pegging graft with the second main leg, the size of first main leg is greater than the size of second main leg, and the geometric area that a plurality of first main legs enclosed on the horizontal direction is greater than the geometric area that a plurality of second main legs enclosed on the horizontal direction. The utility model discloses a jacket module size is less, and the wave power that receives is showing and is reducing, and lower part foundation module size is great, can increase the stability of simple and easy platform, and lower part foundation module, jacket module and upper portion chunk module are independently installed respectively simultaneously, can avoid using large-scale floating crane resource, and engineering operation is last simple and convenient relatively, reduces the engineering investment, increases economic benefits.

Description

Sectional type simple three-leg wellhead platform

Technical Field

The utility model relates to an ocean engineering technology field, concretely relates to simple and easy three-legged well head platform of sectional type.

Background

With the great increase of petroleum resource consumption in China, the national energy strategy is greatly challenged, and the economic, effective and rapid development of offshore petroleum resources in China has attracted much attention. Simple platforms have been increasingly used in offshore marginal medium and small oil and gas field projects due to their low construction costs.

For the development of marginal oil fields in the east China sea area, the development difficulty is higher due to the fact that the water depth is larger and is generally 80-120 m. The economic rationality of development facilities must be guaranteed, and the development value is achieved. In order to further reduce the development cost of the marginal oil and gas field in the east China sea and enable more marginal oil and gas fields to have development value, therefore, the standardized simple three-leg wellhead platform suitable for medium water depth is designed so as to be convenient for adapting to water depth of 60-120 m, large floating crane resources can be saved, expenses can be saved from offshore installation, the development cost of the marginal oil field in the sea area is reduced to the lowest possible, and the platform has important significance for the exploitation of the oil and gas fields in China.

Disclosure of Invention

The utility model aims at providing a simple and easy three leg well head platforms of sectional type to solve among the prior art simple and easy platform and be not applicable to great depth of water, the installation is complicated, problem with high costs.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a simple and easy three-legged well head platform of sectional type, include lower part basic module, jacket module and the upper portion chunk module that sets gradually from bottom to top, lower part basic module includes the first main leg of a plurality of vertical settings, and is a plurality of connect fixedly through first horizontal frame between the first main leg, the jacket module includes the second main leg of a plurality of vertical settings, and is a plurality of connect fixedly through second horizontal frame between the second main leg be equipped with the guide post of a plurality of vertical settings on the basic module of lower part, and is a plurality of guide post and a plurality of second main leg one-to-one, the bottom rigid coupling of guide post is in on the first horizontal frame, just the top of guide post with the bottom of second main leg is connected through the mode of pegging graft, wherein, the size of first main leg is greater than the size of second main leg, and is a plurality of the geometric area that first main leg encloses in the horizontal direction is greater than a plurality of the geometric area that second main leg encloses in the horizontal direction.

Furthermore, a plug-in groove is formed in the top end face of each guide upright post, a plurality of annular plates are fixedly connected to the inner wall of the plug-in groove in the vertical direction, annular holes of the annular plates and the rod body of the second main leg form plug-in fit, and the guide upright posts are fixedly connected through a third horizontal frame.

Furthermore, the top end of the guide upright column is integrally formed with a butt joint part upwards, the butt joint part is in a circular truncated cone shape with the area of the top end surface larger than that of the bottom end surface, a guide channel in the vertical direction is formed in the top end surface of the butt joint part, and the guide channel is communicated to the insertion groove.

Further, lower part basis module includes the first main leg of three vertical setting, and three first main leg encloses into the isosceles triangle structure on the horizontal direction, first horizontal frame includes a plurality of first connecting rods that enclose into triangle-shaped on the horizontal direction, adjacent two through one between the first main leg first connecting rod is connected fixedly, wherein, first horizontal frame is provided with a plurality of along vertical direction, just the guide post rigid coupling is lieing in lower part basis module top on the first horizontal frame.

Further, the lower base module has a height ranging from 40m to 50m.

Furthermore, two vertical piles are arranged on the outer side of the first main leg, the two vertical piles and the first main leg enclose an isosceles triangle structure in the horizontal direction, and the vertical piles and the first main leg are fixedly connected through a horizontally arranged connecting plate.

Further, the jacket module comprises three second main legs which are vertically arranged, the three second main legs are in an isosceles triangle structure in the horizontal direction, the second horizontal frame comprises a plurality of second connecting rods which are in a triangular shape in the horizontal direction, two adjacent second main legs are fixedly connected through one second connecting rod, and the number of the second horizontal frames is arranged in the vertical direction.

Further, the lower base module has a height ranging from 25m to 35m.

Further, the top end of the second main leg is detachably connected with the bottom of the upper block module.

The utility model discloses owing to take above technical scheme, it possesses following beneficial effect:

the utility model discloses a lower part foundation module that sets gradually from bottom to top, jacket module and upper portion chunk module, the size that utilizes lower part foundation module is greater than the size of jacket module, it is less to make jacket module size, the wave power that it receives is showing and is reducing, and lower part foundation module size is great, can increase the stability of simple and easy platform, reduce the quantity that lower part foundation module bore required stake, lower part foundation module simultaneously, jacket module and upper portion chunk module are independent installation respectively, can avoid using large-scale floating crane resource, it is simple and convenient relatively in the engineering operation, reduce the engineering investment, increase economic benefits, so that form the simple and easy three-legged well head platform of standardization that is applicable to the medium depth of water 60m-120 m.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like reference numerals refer to like parts throughout the drawings. In the drawings:

fig. 1 is an overall structural schematic diagram of a sectional type simple three-leg wellhead platform provided by an embodiment of the present invention;

fig. 2 is an assembly structure schematic diagram of a sectional type simple three-leg wellhead platform provided by the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a lower foundation module of a sectional type simple three-leg wellhead platform according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a conduit frame module of a sectional type simple three-leg wellhead platform according to an embodiment of the present invention.

The reference symbols in the drawings denote the following:

1. a lower base module; 11. a first main leg; 12. a first horizontal frame; 2. a conduit frame module; 21. a second main leg; 22. a second horizontal frame; 3. an upper block module; 4. a guide upright post; 41. a docking portion; 42. a third horizontal frame; 5. and (6) erecting the pile.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Because the simple platform in the existing marginal oil field development engineering project is not suitable for larger water depth, the installation is complex and the cost is high. The utility model provides a simple and easy three-legged well head platform of sectional type, including lower part basic module, jacket module and the upper portion chunk module that sets gradually from bottom to top, lower part basic module includes the first main leg of a plurality of vertical settings, and the jacket module includes the second main leg of a plurality of vertical settings be equipped with the guide post of a plurality of vertical settings on the basic module of lower part, the guide post with the second main leg is connected through the mode of pegging graft, and the size of first main leg is greater than the size of second main leg, and is a plurality of the geometric area that first main leg encloses on the horizontal direction is greater than a plurality of the geometric area that second main leg encloses on the horizontal direction. The jacket module is small in size, wave force borne by the jacket module is remarkably reduced, the lower foundation module is large in size, the stability of the simple platform can be improved, the number of piles required by the lower foundation module is reduced, meanwhile, the lower foundation module, the jacket module and the upper module are independently installed respectively, large floating crane resources can be avoided, engineering operation is simple and convenient, engineering investment is reduced, economic benefit is increased, and the jacket module is suitable for medium water depth.

The embodiment of the present invention will be described in detail by way of examples.

Examples

As shown in fig. 1-3, the utility model provides a simple and easy three-legged well head platform of sectional type, including lower part basic module 1, jacket module 2 and the upper portion chunk module 3 that set gradually from bottom to top. The lower base module 1 includes a plurality of vertically arranged first main legs 11, and the plurality of first main legs 11 are connected and fixed by a first horizontal frame 12. The jacket module 2 includes a plurality of second main legs 21 (see fig. 3) arranged vertically, and the plurality of second main legs 21 are connected and fixed to each other by a second horizontal frame 22. A plurality of vertically arranged guide posts 4 are arranged on the lower base module 1, and the plurality of guide posts 4 correspond to the plurality of second main legs 21 one to one. The bottom end of the guide upright post 4 is fixedly connected to the first horizontal frame 12, and the top end of the guide upright post 4 is connected with the bottom end of the second main leg 21 in an inserting manner. Specifically, the top end face of the guide upright post 4 is provided with a plug-in groove, a plurality of annular plates are fixedly connected to the inner wall of the plug-in groove along the vertical direction, and the annular holes of the annular plates and the rod body of the second main leg 21 form a plug-in fit. Through the arrangement of the structure, the lower base module 1 and the jacket module 2 form an independent installation structure, and in the installation process, only the second main legs 21 of the jacket module 2 need to be inserted into the corresponding guide upright posts 4, and the second main legs 21 are fixed through the annular plates in the guide upright posts 4, so that the jacket module 2 is positioned and fixed.

Further, the top end of the guide column 4 is integrally formed with an abutting portion 41 upward, and the abutting portion 41 is in the shape of a circular truncated cone having a top end surface area larger than a bottom end surface area. A guide channel in the vertical direction is formed on the top end surface of the abutting portion 41, and the guide channel is communicated to the insertion groove. Wherein the area of the top end surface of the abutting part 41 is larger than the rod body diameter of the second main leg 21. With this arrangement, the second main leg 21 is smoothly inserted into the guide post 4 along the abutting portion 41 during the installation of the jacket module 2, so as to facilitate the installation and abutting of the jacket module 2.

Further, the plurality of guide pillars 4 are connected and fixed to each other by a third horizontal frame 42. Specifically, the number of the guide columns 4 is three, and the three guide columns 4 enclose an isosceles triangle structure in the horizontal direction. The third horizontal frame 42 includes a plurality of third connecting rods which enclose a triangle in the horizontal direction, and two adjacent guide columns 4 are connected and fixed through one third connecting rod. The rigidity and stability among the guide columns 4 can be improved by supporting the guide columns 4 through horizontal rod pieces.

Further, the top end of the second main leg 21 is detachably connected to the bottom of the upper block module 3. The lower base module 1, the jacket module 2 and the upper chunk module 3 are independently installed respectively, so that large floating crane resources can be avoided, the engineering operation is relatively simple and convenient, the engineering investment is reduced, and the economic benefit is increased, so that a standardized simple three-leg wellhead platform suitable for medium water depths of 60-120 m is formed.

Further, two vertically arranged stakes 5 are provided outside the first main leg 11. Two vertical piles 5 and first main leg 11 enclose into an isosceles triangle structure in the horizontal direction, and vertical pile 5 and first main leg 11 are connected fixedly through the connecting plate that the level set up. I.e. one lower foundation module 1 contains six stakes 5.

As described above, in the installation process, the lower foundation module 1 is installed first, the lower foundation module 1 is fixed by driving the vertical piles 5 at the bottom of the water, then the jacket module 2 is installed by hoisting, the second main leg 21 of the jacket module 2 is inserted into the guide upright post 4 through the butt joint part 41, and is fixed by grouting in the second main leg 21, and finally the upper block module 3 is hoisted, so that the installation of the whole standardized and reusable simple platform is completed, and the upper block module 3 of the simple platform can be conveniently disassembled, thereby realizing the reutilization.

Further, the size of the first main leg 11 is larger than that of the second main leg 21, and the geometric area enclosed by the plurality of first main legs 11 in the horizontal direction is larger than that enclosed by the plurality of second main legs 21 in the horizontal direction. Specifically, the lower base module 1 includes three vertically arranged first main legs 11, and the three first main legs 11 enclose an isosceles triangle structure in the horizontal direction. The first horizontal frame 12 includes a plurality of first links that form a triangle in the horizontal direction, and two adjacent first main legs 11 are connected and fixed by one first link. Wherein, a plurality of first horizontal frames 12 are arranged along the vertical direction, and the guide upright posts 4 are fixedly connected on the first horizontal frame 12 positioned at the top of the lower base module 1. By supporting the plurality of first main legs 11 by horizontal bars, the rigidity and stability of the lower base module 1 can be increased.

Preferably, the height of the lower foundation module 1 is in the range of 40m-50m, and the isosceles size of the lower foundation module 1 is 30mx30m, and compared with the small size of 15mx15m, each lower foundation module 1 can be changed from nine piles to six piles, which can save 3 piles and 1000 tons of steel.

Further, the jacket module 2 includes three second main legs 21 vertically arranged, and the three second main legs 21 enclose an isosceles triangle structure in the horizontal direction. The second horizontal frame 22 includes a plurality of second links that enclose a triangle in the horizontal direction, and two adjacent second main legs 21 are connected and fixed by one second link. Wherein, the second horizontal frame 22 is provided with a plurality of along the vertical direction. By supporting the plurality of second main legs 21 by horizontal bars, the rigidity and stability of the jacket module 2 can be increased.

Preferably, the height of the jacket module 2 is in the range of 25m-35m, and the isosceles dimension of the jacket module 2 is 15mx15m, the smaller dimension effectively reducing the wave load on the simple platform compared to the larger dimension of 30mx30 m. The jacket modules 2 can be divided into 1-3 according to different water depths.

Through the setting of this structure, it is less to utilize jacket module 2 size, makes its wave power that receives show and reduces to utilize lower part foundation module 1 size great, can increase the stability of simple and easy platform, reduce lower part foundation module 1 and bear required pile 5 quantity.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (9)

1. The utility model provides a simple and easy three-legged well head platform of sectional type which characterized in that: the sectional type simple three-leg wellhead platform comprises a lower portion base module, a jacket module and an upper portion chunk module which are sequentially arranged from bottom to top, wherein the lower portion base module comprises a plurality of vertically arranged first main legs, the first main legs are fixedly connected through a first horizontal frame, the jacket module comprises a plurality of vertically arranged second main legs, the second main legs are fixedly connected through a second horizontal frame, a plurality of vertically arranged guide stand columns are arranged on the lower portion base module and correspond to the second main legs one to one, the bottom ends of the guide stand columns are fixedly connected onto the first horizontal frame, the top ends of the guide stand columns are connected with the bottom ends of the second main legs in an inserting mode, the size of the first main legs is larger than that of the second main legs, and the geometric area formed by the first main legs in the horizontal direction is larger than that formed by the second main legs in the horizontal direction.

2. The segmented simple three-legged wellhead platform according to claim 1, further comprising: the top end faces of the guide stand columns are provided with inserting grooves, a plurality of ring plates are fixedly connected to the inner walls of the inserting grooves in the vertical direction, ring holes of the ring plates are in inserting fit with the rod body of the second main leg, and the guide stand columns are fixedly connected through a third horizontal frame.

3. The segmented simple three-legged wellhead platform according to claim 2, characterized in that: the top end of the guide upright post is upwards integrally formed with a butt joint part, the butt joint part is in a circular truncated cone shape with the area of the top end surface larger than that of the bottom end surface, a guide channel in the vertical direction is arranged on the top end surface of the butt joint part, and the guide channel is communicated to the insertion groove.

4. A segmented simple three-legged wellhead platform according to claim 3 in which: lower part basic module includes the first main leg of three vertical setting, and three first main leg encloses into the isosceles triangle structure in the horizontal direction, first horizontal frame includes a plurality of first connecting rods that enclose into triangle-shaped in the horizontal direction, adjacent two through one between the first main leg first connecting rod is connected fixedly, wherein, first horizontal frame is provided with a plurality of along vertical direction, just the guide post rigid coupling is lieing in lower part basic module top on the first horizontal frame.

5. The segmented simple three-legged wellhead platform according to claim 4, characterized in that: the height of the lower base module ranges from 40m to 50m.

6. The segmented simple three-legged wellhead platform according to claim 5, further comprising: the outer side of the first main leg is provided with two vertically arranged vertical piles, the two vertical piles and the first main leg enclose an isosceles triangle structure in the horizontal direction, and the vertical piles and the first main leg are fixedly connected through a horizontally arranged connecting plate.

7. The segmented simple three-legged wellhead platform according to claim 6, further comprising: the jacket module comprises three second main legs which are vertically arranged, the three second main legs are in an isosceles triangle structure in the horizontal direction, the second horizontal frame comprises a plurality of second connecting rods which are in a triangular shape in the horizontal direction, two adjacent second main legs are fixedly connected through one second connecting rod, and the number of the second horizontal frames is arranged in the vertical direction.

8. The segmented simple three-legged wellhead platform according to claim 7, further comprising: the height of the lower base module ranges from 25m to 35m.

9. The segmented simple three-legged wellhead platform according to claim 8, further comprising: the top end of the second main leg is detachably connected with the bottom of the upper block module.

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