阅读说明：本技术 海洋石油平台井口区建造模块及其建造方法 (Offshore oil platform wellhead area building module and building method thereof ) 是由 杜光 王东锋 李家福 王娴 焦茗 张刚 王国 张少华 宋文文 赵刚 卫军 李长 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种海洋石油平台井口区建造模块,所述海洋石油平台井口区建造模块包括根据海洋石油平台井口区结构的设计方案划分的最大化建造模块,所述最大化建造模块于陆地组装完成,使原本需要在海上完成的庞大的管线组装工作在资源更为充足、施工条件更为方便的陆地完成,大大缩短了海上施工时间,节约了海上施工成本,并且有利于建造水平和建造质量的提高,首次突破了传统建造技术方案的束缚,创新性地解决了海上建造面临的缺少材料、施工效率低下、管线试压失败等而带来的困难,从而对传统建造技术方案进行创新性优化,大幅度降低了建造难度,节省了巨额施工成本,确保了项目按期投产增效。(The invention discloses a building module for a wellhead area of an offshore oil platform, which comprises a maximized building module divided according to a design scheme of the wellhead area structure of the offshore oil platform, wherein the maximized building module is assembled on land, so that huge pipeline assembly work which needs to be finished on the sea originally is finished on land with more sufficient resources and more convenient construction conditions, the offshore construction time is greatly shortened, the offshore construction cost is saved, the building level and the building quality are improved, the constraint of the traditional building technical scheme is broken through for the first time, the difficulties caused by material shortage, low construction efficiency, pipeline pressure test failure and the like in the offshore construction are innovatively solved, the traditional building technical scheme is optimized innovatively, the building difficulty is greatly reduced, and the huge construction cost is saved, ensures that the project is put into production and synergized according to the schedule.)

1. An offshore oil platform wellhead area building module is characterized by comprising maximized building modules which are divided according to the design scheme of the offshore oil platform wellhead area structure, and the maximized building modules are assembled on the land.

2. Offshore oil platform wellhead area building module according to claim 1, characterised in that the maximization building module is temporarily fixed on a temporary support (10).

3. The offshore oil platform wellhead area building module of claim 2,

the height of the maximized building module temporarily fixed on the temporary support (10) is more than or equal to the designed installation height of the maximized building module installed at the wellhead area of the offshore oil platform.

4. The offshore oil platform wellhead area building module according to claim 1 wherein the maximum building module is provided with an adjustment locating member for adjusting and locating the maximum building module at a preset position when installed.

5. The offshore oil platform wellhead area building module according to claim 1 wherein the maximization building module comprises an integral part of a Christmas tree.

6. Offshore oil platform wellhead area building module according to claim 5, characterised in that the maximization building module is reserved with a slot for passing through a tree trunk (9).

7. Offshore oil platform wellhead area building module according to claim 6, characterised in that the maximization building module is provided with a reserve string end connected with the christmas tree body and/or with the offshore oil platform wellhead area string (5).

8. The offshore oil platform wellhead area construction module according to any one of claims 1 to 7 wherein the construction module performs non-destructive inspection on land.

9. A method of constructing a wellhead area of an offshore oil platform using a module as claimed in claims 1 to 8, the method comprising the steps of:

integrally moving the building module of the wellhead area of the offshore oil platform to the position above the design position of the wellhead area of the offshore oil platform to complete land integrated building;

moving the building module of the wellhead area of the offshore oil platform downwards and fixing the building module at the design position of the wellhead area of the offshore oil platform to carry out offshore folding in place;

connecting the reserved pipeline end of the offshore oil platform wellhead area building module to the Christmas tree body and/or the offshore oil platform wellhead area.

Technical Field

The invention belongs to the technical field of offshore oil platform construction, and particularly relates to a construction module for a wellhead area of an offshore oil platform and a construction method thereof.

Background

In a traditional offshore oil platform construction project, an offshore oil platform is constructed by constructing platform blocks on land and then assembling the platform blocks and constructing a wellhead area of the offshore oil platform or constructing the offshore oil platform completely, so that huge construction workload on the sea is caused, all specialties in the wellhead area are constructed on the sea, cross operation is serious, uncertain risk factors exist in offshore construction, project construction progress and project cost saving are not facilitated, the construction period is long, the cost is high, and the offshore oil platform is not beneficial to improvement of construction technical level and innovation of an offshore engineering company.

The traditional wellhead area construction method is that a wellhead area structure is broken into structural pieces, the scattered structural pieces are placed at design and specified positions and then combined into a large piece for positioning and welding, opening and construction progress of other professional operation surfaces of the wellhead area is severely limited under severe environment of offshore one-line operation and extremely resource-lacking construction conditions, offshore construction time is long, construction cost is high, a plurality of adverse factors exist, and the offshore oil platform is not beneficial to production and creation of effects.

Disclosure of Invention

The invention provides a building module of a wellhead area of an offshore oil platform and a building method thereof, aiming at the technical problems of large offshore construction amount, large construction difficulty and high construction cost in the traditional construction of the wellhead area of the offshore oil platform.

The invention provides an offshore oil platform wellhead area building module which comprises a maximized building module divided according to a design scheme of an offshore oil platform wellhead area structure, wherein the maximized building module is assembled on the land.

In one of the embodiments, the maximum building module is temporarily fixed on a temporary support.

In one embodiment, the height at which the maximized building module is temporarily fixed on the temporary support is greater than or equal to the designed installation height at which the maximized building module is installed at the wellhead area of the offshore oil platform.

In one embodiment, the maximum building module is provided with an adjusting and positioning member, and the adjusting and positioning member is used for adjusting and positioning the maximum building module at a preset position when the maximum building module is installed.

In one embodiment, the maximum build module comprises an integral part of a tree.

In one embodiment, the maximum building module is reserved with a slot for passing through the tree trunk of the tree.

In one of the embodiments, the maximum build module is provided with a reserve line end connected to the christmas tree body and/or to the offshore oil platform wellhead area line.

In one of the embodiments, the building module performs a non-destructive inspection on land.

The invention also provides a method for constructing a wellhead area of an offshore oil platform, which uses the offshore oil platform wellhead area construction module as claimed in the claim, and comprises the following steps:

integrally moving the building module of the wellhead area of the offshore oil platform to the position above the design position of the wellhead area of the offshore oil platform to complete land integrated building;

moving the building module of the wellhead area of the offshore oil platform downwards and fixing the building module at the design position of the wellhead area of the offshore oil platform to carry out offshore folding in place;

connecting the reserved pipeline end of the offshore oil platform wellhead area building module to the Christmas tree body and/or the offshore oil platform wellhead area.

The construction module and the construction method thereof at the wellhead area of the offshore oil platform divide the wellhead area structure of the offshore oil platform into the maximized construction modules, assemble the maximized construction modules on land, and integrally move and install the maximized construction modules at the wellhead area of the offshore oil platform after the offshore oil platform is in place, thereby completing the assembly work of huge pipelines which are originally needed to be completed on the sea on the land with more sufficient resources and more convenient construction conditions, greatly shortening the offshore construction time, saving the offshore construction cost, being beneficial to improving the construction level and the construction quality, breaking through the constraint of the traditional construction technical scheme for the first time, innovatively solving the difficulties caused by the lack of materials, low construction efficiency, failed pipeline pressure test and the like in the offshore construction, further optimizing the traditional construction technical scheme, greatly reducing the construction difficulty and saving huge construction cost, ensures that the project is put into production and synergized according to the schedule.

Drawings

FIG. 1 is a schematic illustration of the installation of a construction module for a wellhead area of an offshore oil platform according to the present invention;

FIG. 2 is a schematic view of another angle installation of the offshore oil platform wellhead area construction modules of the present invention;

FIG. 3 is a schematic illustration of the temporary support location of the offshore oil platform wellhead area construction module of the present invention;

1-a first structural sheet; 2-a second structural sheet; 3-a third structural sheet; 4-structural uprights; 5-a pipeline; 6-tube holder; 7-valve group; 8-christmas tree head; 9-Christmas tree body; 10-temporary support.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

The invention considers the factors of severe offshore construction environment, limited offshore construction resources, limited offshore construction quality, low construction efficiency and the like, overcomes the technical bias that the construction quality of on-site construction and installation is higher in the traditional construction method through serious analysis and audit of the construction technical scheme of the wellhead area of the offshore oil platform, and advances the operations of structure construction, pipeline 5 installation and the like which are originally required to be completed at sea to the offshore oil platform for land construction before the offshore oil platform comes out, thereby realizing the land integrated construction of the wellhead area structure of the offshore oil platform.

The invention provides a wellhead area building module of an offshore oil platform, which comprises a maximization building module divided according to a design scheme of a wellhead area structure of the offshore oil platform, and the maximization building module is assembled on land.

The second aspect of the invention also provides a construction method for the wellhead area of the offshore oil platform, which uses the construction module for the wellhead area of the offshore oil platform, and comprises the following steps:

integrally moving the building module of the wellhead area of the offshore oil platform to the position above the design position of the wellhead area of the offshore oil platform to complete land integrated building;

moving the building module of the wellhead area of the offshore oil platform downwards and fixing the building module at the design position of the wellhead area of the offshore oil platform to carry out offshore folding in place;

connecting the reserved pipeline end of the offshore oil platform wellhead area building module to the Christmas tree body and/or the offshore oil platform wellhead area.

The invention relates to a building module of a wellhead area of an offshore oil platform and a building method thereof, which divide the wellhead area structure of the offshore oil platform into maximum building modules, complete the assembly on land, and can be integrally and movably arranged on the wellhead area of the offshore oil platform after the offshore oil platform is in place, so that the assembly work of a huge pipeline 5 which needs to be completed on the sea originally can be completed on the land with more sufficient resources and more convenient construction conditions.

According to the method for building the wellhead area of the offshore oil platform, the sequence and the time point of the construction of the wellhead area are changed, the structure and the pipeline 5 assembly operation which are originally required to be completed on the sea are constructed on the land before the offshore oil platform comes out, the construction is carried out under the conditions of sufficient construction resources, good construction conditions and safety, the offshore construction time is greatly shortened, and the offshore construction cost is saved. The constraint of the traditional construction technical scheme is broken through for the first time, and the difficulties caused by material shortage, low construction efficiency, pipeline 5 pressure test failure and the like in the offshore construction are innovatively solved, so that the traditional construction technical scheme is innovatively optimized, the construction difficulty is greatly reduced, huge construction cost is saved, the purposes of energy conservation and emission reduction, cost reduction and efficiency improvement are achieved, and the project is ensured to be put into production and improved on schedule.

As an alternative embodiment, the maximized building module is temporarily fixed to the temporary support 10, and the temporary support 10 is used to temporarily support the maximized building module to facilitate its assembly on the land, on the one hand, and to support the maximized building module at a predetermined position by being fixed to the offshore oil platform body when the maximized building module is integrally moved to the offshore oil platform for installation, on the other hand.

Optionally, the height at which the maximized building module is temporarily fixed on the temporary support 10 is equal to or greater than the designed installation height at which the maximized building module is installed at the wellhead area of the offshore oil platform. Specifically, the integrated structure can be lifted up to a designated height from the upper-layer structural beam frame for temporary fixation, the pipeline 5, the pipe bracket 6 and the valve group 7 are installed on the lifted integrated structure according to a design scheme, and the integrated structure is assembled in place on land at one time to form a maximized building module. During offshore construction, the maximized building module is integrally lowered and installed. The temporary fixed height of the maximized building mold is higher than the design height, so that the pipeline 5, the pipe bracket 6 and the valve group 7 can be conveniently assembled, a foundation is provided for the assembly of the pipeline 5, the pipe bracket 6 and the valve group 7, and the transportation and the subsequent offshore installation and construction are also facilitated.

Further optionally, the maximum building module is provided with an adjusting positioning member, and the adjusting positioning member is used for adjusting and positioning the maximum building module at a preset position during installation. When this maximize construction module is installed at offshore oil platform, can put maximize construction module wholly down, pass christmas tree trunk 9, make the maximize construction module transfer to the design position through the setting element, install christmas tree head 8 after fixing the maximize construction module through modes such as welding.

Optionally, the maximization building module comprises an integral part of a tree. For example, the various valves, lines 5, etc. of the tree may be included, and these components connected to the tree may be pre-assembled on land, and then ported to the tree body after the maximum build module is integrally secured.

Optionally, the maximization building module is reserved with a slot for passing through the tree trunk 9. The maximized building module is reserved with a notch, so that the whole Christmas tree can be conveniently installed by penetrating through the Christmas tree.

Further, the maximization building module is provided with a reserve line end connected to the christmas tree body and/or to the offshore oil platform wellhead area line 5. After the maximization building module is fixed with the offshore oil platform, the reserved pipeline end is connected with the Christmas tree body or connected with the wellhead area pipeline 5 of the offshore oil platform, communication between the maximization building module and the offshore oil platform is achieved, and mechanical completion is achieved.

As an alternative, it is first necessary to divide the maximum building blocks according to the design scheme of the wellhead area structure of the offshore oil platform, i.e. to disassemble and split the wellhead area structure, so that the components that can be assembled on land are divided into the maximum building blocks as much as possible, leaving corresponding installation locations/installation ports for the connection and/or fixing work that can only be built on the offshore oil platform. And (4) after the components of the maximized building module are installed on the land, completing nondestructive inspection on the land. And then integrally transporting and moving the maximized building module and the offshore oil platform block to the sea to finish the installation of the oil platform. Specifically, when the maximization building module is installed, the maximization building module is integrally lowered to pass through the Christmas tree body 9, the maximization building module is finally fixed in a welding mode and the like when being lowered to the designed position, and then the maximization building module reserved pipeline 5 end is connected with the Christmas tree body and the pipeline 5 on the offshore oil platform to complete the mechanical completion.

Referring to fig. 1 to 3, an embodiment of a module for constructing a wellhead area of an offshore oil platform according to the present invention includes a structural plate set, a structural column 4, a pipeline 5, a pipe support 6, and a valve set 7. When the offshore oil platform is assembled on land, the structural sheet group and the structural upright post 4 are assembled into an integrated structure, then the integrated structure after being combined is temporarily fixed on the temporary support piece 10, and then the pipelines 5, the pipe bracket 6 and the valve group 7 are installed according to the design scheme of the wellhead area structure of the offshore oil platform, so that the assembly of the maximum building module is completed.

In this embodiment, the structural sheet group of the maximum building module has the first structural sheet 1, the second structural sheet 2 and the third structural sheet 3, and the first structural sheet 1, the second structural sheet 2 and the third structural sheet 3 are fixed on the structural columns 4 to form an integrated main structure of the maximum building module, and then the integrated main structure is temporarily fixed on the temporary support, and then the pipeline 5 and the valve group 7 are connected according to the design scheme, and the pipeline 5 is fixed on each corresponding structural sheet by the pipe support 6, so that the pipeline 5 is kept fixed on the design position by the pipe support 6, and the building module is ensured to be integrally moved, and the design position where the pipeline 5 is kept when the offshore oil platform is installed, and further, the stability of the pipeline 5 when the offshore oil platform wellhead area is transported can also be ensured.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.