CN201056685Y

CN201056685Y - Combined simple shaft mouth processing platform

Info

Publication number: CN201056685Y
Application number: CNU2007200955889U
Authority: CN
Inventors: 王翎羽
Original assignee: HAIWANGXING OCEAN ENGINEERING TECHNOLOGY Co LTD TIANJIN CITY
Current assignee: HAIWANGXING OCEAN ENGINEERING TECHNOLOGY Co LTD TIANJIN CITY
Priority date: 2007-03-27
Filing date: 2007-03-27
Publication date: 2008-05-07
Anticipated expiration: 2017-03-27

Abstract

A combined type simple wellhead process platform consists of a tube type base 1, a combined type support structure and an upper part structure. The combined support structure has at least one layer. The bottom layer support structure integrates with the tube type base 1, and the top layer support structure is connected with the upper part structure, which comprises a box body deck 2 and corner columns and adjusts the height position of the corner columns 3 relative to the box body deck 2 by a lifting chamber 4 arranged on the deck 2. A connecting structure is arranged on the lower end of each corner column 3. The support structure consists of a box beam 5 and upright posts 6. The number of the upright posts is the same as that of the upper structure corner columns 3, and the posts and columns are arranged in corresponding positions in a one-to-one manner. Both ends of the upright posts 6 are provided with connecting structures. The utility model has the beneficial effect that by serialized support structure combination and tube type base replacement, the platform structure is applicable to different water depth conditions and different soil conditions, with the advantages of convenience to install, recycle, remove and re-install, repeated usage and improved cost-effectiveness for the development of small oilfields.

Description

A kind of combined simple well head processing platform

Technical field

The utility model relates to a kind of marine small oil field Development Engineering structure, especially can adapt to the combined simple well head processing platform of the different depth of waters and edaphic condition.

Background technology

At present, known well head processing platform mainly comprises pile foundation jacket structure, tube substrate casing structure, basic jacket structure three classes of tube.Wherein tube substrate casing structure, the basic jacket structure of tube be owing to adopt bucket foundation, and having can be with the characteristic that receive, re-use, therefore adapts to the needs of short, small investment of small oil field construction cycle.When above two class formations re-use, need to consider following condition: 1, ambient conditions (mainly being the depth of water and edaphic condition) compliance to re-using the place; 2, after reclaim former place to use to the transportation that re-uses between the place; 3, the compliance of the production technology facility on the Platform Deck.Because the design feature of tube substrate casing structure, tube basic jacket structure self under situation about not transforming, can not adapt to ambient conditionss such as the different depth of water and soil; And it is far away more to re-use between place and the former place to use distance, and it is big more that ambient conditions differs, and migration transportation difficulty.Therefore tube substrate casing structure, the basic jacket structure of tube operability aspect re-using are relatively poor, only can re-use the engineering services expense of reduction small oil field exploitation that can not be effective near former place to use.

Summary of the invention

Relatively poor and re-use the problem of poor operability to environmental suitability in re-using in order to solve existing bucket foundation well head processing platform, the utility model provides a kind of combined simple well head processing platform.This combined simple well head processing platform is strong to the adaptive capacity of ambient conditions, re-use workable, marine install and migration convenient, effectively reduce the engineering services expense of small oil field exploitation.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of combined simple well head processing platform is made up of bucket foundation, combined type braced structures and superstructure.It is characterized in that said combined type braced structures has one deck at least, the base layer support structure connects bucket foundation for whole, and the top layer braced structures is connected with superstructure.Superstructure is made up of casing deck and the leg post that is no less than three, and adjusts the height and position of leg post with respect to the deck by the cage that is provided with above deck; The lower end of every leg post is provided with syndeton, and superstructure can be bubbled through the water column certainly and be satisfied the towage requirement.Every layer of braced structures formed by box beam and column, the quantity of column is identical with superstructure leg post quantity, and the position is corresponding one by one, the two ends of column are equipped with syndeton, the towage requirement can be bubbled through the water column and satisfy to each layer braced structures all certainly, and wherein base layer support structure and bucket foundation connect for also bubbling through the water column certainly after the integral body and satisfying the towage requirement.More than said syndeton can be flange, also can be mechanical connection mechanism.When Platform Structure Design, braced structures is according to the different seriesization of its height, and bucket foundation is according to design load and different also seriations of edaphic condition.The combination of the braced structures by some differing heights makes platform structure adapt to different depth conditions; By changing the bucket foundation of different size, make platform structure adapt to different edaphic condition.For fear of the influence of drilling operation course drill ship plug stake, should consider that the bucket foundation edge is big as far as possible to the distance at drill ship shoe edge to bucket foundation.For this this platform adopts corresponding three bucket foundations of three leg posts, the well head sheet is positioned at the wherein outside of one leg post.

The beneficial effects of the utility model are: the 1) combination of the braced structures by seriation, and platform structure can adapt to different depth conditions; 2), make platform structure adapt to different edaphic condition by changing bucket foundation; 3) by adopting three bucket foundations, and the well head sheet is arranged on the outside of leg post, reduced the influence of drillng operation, improve the safety of bucket foundation platform the bucket foundation bearing capacity; 4) the towage requirement can be bubbled through the water column and satisfy to the each several part structure of on-the-spot aggregate erection all certainly, therefore do not need barge and large-scale crane ship, and marine mounting cost is low; 5) platform structure marine reclaim, migration, easy for installation again, reach the effect of repeateds use, raising small oil field exploiting economy.

Description of drawings

Be described further below in conjunction with drawings and Examples.

Fig. 1 is an elevation of the present utility model;

Fig. 2 is the vertical view of the utility model superstructure;

Fig. 3 is the vertical view of the utility model braced structures;

Fig. 4～Fig. 7 is the marine installation process of the utility model;

Fig. 8～Figure 10 moves installation process again for the utility model.

Wherein: the 1-bucket foundation; 2-casing deck; 3-leg post; The 4-cage; 5-box beam: 6-column; 7-well head sheet; The 8-waterproof casing; The 9-water surface; 10-mud face.

The specific embodiment

As shown in Figure 1, be example with the platform structure of three leg posts, two-layer braced structures, a kind of combined simple well head processing platform is made up of bucket foundation 1, combined type braced structures and superstructure.The base layer support structure connects bucket foundation 1 for whole, and the top layer braced structures is connected with superstructure.Superstructure is formed (seeing Fig. 1, Fig. 2) by casing deck 2 and leg post 3, and adjusts leg post 3 height and positions with respect to casing deck 2 by the cage 4 that is arranged on the casing deck 2, and the lower end of every leg post 3 is provided with and is used for flange connecting.Braced structures is formed by box beam 5 with column 6, and the quantity of column 6 is identical with superstructure leg post 3 quantity, and the corresponding one by one (see figure 3) in position, and the two ends of column 6 are equipped with and are used for flange connecting, and wherein the outside of column welding well head sheet 7.

Fig. 4～Fig. 7 reflects the marine installation process of the platform structure of three leg posts, two-layer braced structures.Fig. 4: for base layer support structure and bucket foundation 1 are coupled as one, self-floating towing is to marine infield, and exhaust is drowned oneself and transferred in the water under the tractive state, and last suction sinking puts in place; Fig. 5: the braced structures self-floating towing also is connected with the contraposition of base layer support structure under the tractive state to marine infield; Fig. 6: drill ship carries out waterproof casing 8 to be installed and drillng operation, and can carry out the prefabricated of superstructure this moment simultaneously; Fig. 7: the superstructure self-floating towing also is connected with the braced structures contraposition to marine infield, and casing deck 2 promotes and puts in place.In above marine installation process, only need tugboat to carry out the towage operation and small-sized crane barge carries out the tractive operation.

Fig. 8～Figure 10 reflects that platform structure from the darker marine site of the depth of water (as Fig. 7), moves to the installation process in the more shallow marine site of the depth of water.According to depth condition and edaphic condition design, prefabricated corresponding bucket foundation and braced structures, install then than neritic zone.The installation process of Fig. 8 is identical with the installation process of Fig. 4; The installation process of Fig. 9 is identical with the installation process of Fig. 6; Figure 10: the superstructure in former place (as Fig. 7) dismounting, self-floating towing is to installing than neritic zone, the process of superstructure dismounting is: casing deck 2 descends, entry promotes from floating---cutting off the connecting bolt of 6 on leg post 3 and braced structures column in the water---leg post 3, breaks away from braced structures; Superstructure installation process again is identical with Fig. 7.

Claims

1. a combined simple well head processing platform is made up of bucket foundation, combined type braced structures and superstructure, it is characterized in that said combined type braced structures has one deck at least, the base layer support structure connects bucket foundation for whole, and the top layer braced structures is connected with superstructure.

2. according to the combined simple well head processing platform of claim 1, it is characterized in that superstructure is by the casing deck be no less than three leg post and form, and adjust the height and position of leg post with respect to the casing deck by the cage that is arranged on the casing deck, the lower end of every leg post is provided with syndeton, and superstructure can be bubbled through the water column certainly and be satisfied the towage requirement.

3. according to the combined simple well head processing platform of claim 1, it is characterized in that braced structures is made up of box beam and column, the quantity of column is identical with superstructure leg post quantity, and the position is corresponding one by one, the two ends of column are equipped with syndeton, and each layer braced structures all can be bubbled through the water column certainly and be satisfied the towage requirement.

4. according to the combined simple well head processing platform of claim 1, it is characterized in that syndeton can be a flange, also can be mechanical connecting structure.