CN103046521A - Novel, simple and easy wellhead rack structure and construction method - Google Patents
Novel, simple and easy wellhead rack structure and construction method Download PDFInfo
- Publication number
- CN103046521A CN103046521A CN2011103062415A CN201110306241A CN103046521A CN 103046521 A CN103046521 A CN 103046521A CN 2011103062415 A CN2011103062415 A CN 2011103062415A CN 201110306241 A CN201110306241 A CN 201110306241A CN 103046521 A CN103046521 A CN 103046521A
- Authority
- CN
- China
- Prior art keywords
- waterproof casing
- wellhead
- rack
- novel
- drill conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
Disclosed is a novel, simple and easy wellhead rack structure and a construction method. The wellhead rack structure comprises a lower wellhead rack portion, a drill conductor and an upper component and is characterized in that the drill conductor replaces a prior guide tube rack and can achieve functions of the drill conductor and support the upper component. The lower wellhead rack portion is firstly sunken and put down by a large hook or a small floating crane on a drilling ship, a suction pile cylindrical foundation is injected into seabed soil, and the drill conductor is gradually driven into a seabed by a drill conductor protecting tube. Finally, the upper component is in a butt joint with the drill conductor by the large hook or the small floating crane on the drilling ship. The novel, simple and easy wellhead rack structure has the advantages that the drill conductor replaces the traditional guide tube rack, and the steel used amount of the structure is reduced; marine installation can be achieved by the large hook or the small floating crane on the drilling ship, and requirements for construction resources are reduced; the structure is flexible, easy to install, the construction period of the marine installation is shortened, and project costs can be remarkably lowered; and simultaneously, the water surface wave force exerted on the structure is small, and the resistance to cold is high.
Description
Technical field
The invention belongs to the innovation of shallow sea, ocean engineering field marginal oil field wellhead frame structure pattern and mounting method thereof.
Background technology
In the marine petroleum development, for reducing cost, various countries are optimized offshore production facility and simplify, and relatively are typically marine Light Platform and multi-bucket.
Light Platform has single leg, two legs and three leg structural shapes.The maximum characteristics that single leg Light Platform is different from the conventional catheters body panel are that it all adopts the riser pipe of drilling well or single leg band of column of larger diameter (such as 3m) to overlap its outer leg column type formula as platform, the lower end of leg post is positioned at more than the mud face, the leg post is with 3 or 4 diagonal brace supports and be aided with necessary stull, with being fixed in sea bed.Thereby greatly reduced steel using amount and the offshore construction amount of platform leg post and stake, the platform cost is reduced for it.This type of platform is furnished with the Texas deck of individual layer to three layer, as the individual well platform or be equipped with the production that the equipment such as metering separator, well control, chemical agent injection can be supported 4-6 mouth well.They all are used with existing central platform, perhaps rely on the land terminal facility of offshore to produce.
The bucket foundation platform is a kind of of simple platform.In the jacket platform of shallow sea, the steel using amount of stake accounts for half of platform structure steel using amount, and the marine guidance piling of platform and mounting cost account for half of cost, so the reform traditional pile foundation is significant to reducing the platform cost.Bucket foundation is to develop on the differential prolonged application basis of sinking to stake, when the platform sinking when sea bed is in place, by its deadweight the bottom of cylinder base is pressed in the mud certain depth and forms bottom end seal first; Then, make the inside and outside generation of cylindrical shell pressure differential with the pump pumping, thereby the cylinder base is pressed in the mud until desired depth.
Summary of the invention
In order to shorten the marine installation period of shallow sea marginal oil field platform structure, and decrease cost, the invention provides a kind of shallow sea marginal oil field wellhead frame structure, basic function that to a certain extent can implementation platform.This structure is because simple structure, the characteristics such as lightweight can directly realize marine the installation by the hook on the drill ship or little crane barge.Waterproof casing has substituted original jacket in the present invention, both can play the waterproof casing effect, can substitute again the conventional catheters frame as the support of upper chunk, thereby optimized form of structure, reduced construction weight, and fully developed the multi-functional of traditional waterproof casing, when simplifying marine erection procedure, reach the purpose that shortens marine installation period, reduces mounting cost.
The technical solution adopted for the present invention to solve the technical problems is: simple wellhead frame structure is comprised of well-head frame bottom, waterproof casing, upper chunk.Wherein the well-head frame bottom includes waterproof casing pillar and a suction pile cylindrical foundation, and the suction pile cylindrical foundation adopts suction type to install, and outside suction pile cylindrical foundation anchor ring uniform 4 waterproof casing leads.Its installation process is that the each several part structure is transported to the construction marine site with barge or other method, and the each several part construction weight is not only light than traditional structure, and compact conformation, flexible, thereby can carry out combined type at sea and install.Hook on the drill ship or little crane barge are first with well-head frame bottom sinking, and the suction pile cylindrical foundation by extracting the water in the suction pile cylindrical foundation, makes it in the injection ocean bottom soil after relying on the deadweight initial penetration into mud to reach air-proof condition.Installation pile extension platform is squeezed into waterproof casing in the sea bed one by one by the waterproof casing pillar after finishing, and hangs away the pile extension platform after finishing, and docks with waterproof casing upper group is packaged with drill ship hook or little crane barge at last.
The invention has the beneficial effects as follows that waterproof casing substitutes the conventional catheters shelf structure, not only reduced the steel using amount of structure self, also given full play to the new function of traditional structure; Marine installation process does not need to use large-scale floating crane, can install with the hook on the drill ship or little crane barge, has reduced the requirement to working sources; And the structure maneuverability is installed simple and easyly, so that marine installation period shortens, therefore can significantly reduce engineering cost; The water surface wave power that is subject to of this wellhead frame structure is little simultaneously, and anti-ice ability is strong.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is that structure of the present invention is always schemed;
Fig. 2 is well-head frame of the present invention bottom installation figure;
Fig. 3 is waterproof casing installation figure of the present invention;
Fig. 4 is that upper chunk of the present invention is installed docking scheme.
Wherein: 1-suction pile cylindrical foundation; 2-waterproof casing pillar; The 3-waterproof casing; 4-well-head frame bottom; The 5-upper chunk; The 6-horizontal support; The 7-diagonal brace; 8-soil; The 9-water surface.
The specific embodiment
As shown in Figure 1, simple wellhead frame structure is seen Fig. 1, is comprised of suction pile cylindrical foundation 1, waterproof casing pillar 2, waterproof casing 3, upper chunk 5, horizontal support 6 and diagonal brace 7.
The prefabricated simple wellhead frame structure of finishing is lifted shipment at harbour, mainly be divided into three parts and lift, be respectively: waterproof casing 3, well-head frame bottom 4 and upper chunk 5.
As shown in Figure 2, the Landed by Lighter of simple wellhead frame structure parts is to the construction marine site.Barge is behind near the location of casting anchor drill ship or the little crane barge, with drill ship hook or little crane barge well-head frame bottom 4 is lifted by crane from barge, make it entry, under the righting of suspension hook, well-head frame bottom 4 slowly is placed to the mud face, rely on deadweight to make suction pile cylindrical foundation 1 initial penetration into mud of well-head frame bottom, after reaching the native air-proof condition of stake, the water by in the submersible pump extraction suction pile cylindrical foundation 1 makes in its injection ocean bottom soil.4 installations of well-head frame bottom.
As shown in Figure 3, the pile extension platform is installed, one by one squeeze in sea bed along waterproof casing pillar 2 waterproof casing 3 by pile hammer or drill ship rig after the installation, after waterproof casing 3 is all squeezed into and is put in place, fixing with being in the milk between waterproof casing 3 outer walls and waterproof casing pillar 2 inwalls, hang away the pile extension platform after finishing.
As shown in Figure 4, with drill ship hook or little crane barge upper chunk 5 and waterproof casing 3 are connected and welded, finish the integral installation of simple wellhead frame.
Claims (3)
1. a Novel simple well mouth support structure and job practices, by the suction pile cylindrical foundation, the waterproof casing pillar, waterproof casing and upper chunk form, it is characterized in that the suction pile cylindrical foundation adopts suction type to install, mounting means is to adopt suction penetration method and piling method or boring method to combine, finish parts (suction pile cylindrical foundation, waterproof casing) installation, and outside suction pile cylindrical foundation anchor ring uniform 4 waterproof casing leads, substituted original jacket in waterproof casing, both can play the effect of waterproof casing, can replace again the conventional catheters frame as the support of upper chunk, waterproof casing is squeezed into sea bed by the waterproof casing pillar, the realization upper chunk is docked with waterproof casing, and waterproof casing forms upper chunk and supports.
2. a kind of Novel simple well mouth support structure according to claim 1 and job practices is characterized in that the water surface wave power that said wellhead frame structure is subject to is little, and anti-ice ability is strong.
3. a kind of novel type simple wellhead frame structure according to claim 1 and job practices is characterized in that said mounting means adopts suction penetration method and piling method or boring method to combine, and finishes the installation of suction pile, bucket foundation, waterproof casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103062415A CN103046521A (en) | 2011-10-11 | 2011-10-11 | Novel, simple and easy wellhead rack structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103062415A CN103046521A (en) | 2011-10-11 | 2011-10-11 | Novel, simple and easy wellhead rack structure and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103046521A true CN103046521A (en) | 2013-04-17 |
Family
ID=48059359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103062415A Pending CN103046521A (en) | 2011-10-11 | 2011-10-11 | Novel, simple and easy wellhead rack structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103046521A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362478A (en) * | 2013-07-22 | 2013-10-23 | 江苏文汇钢业工程有限公司 | Preassembled type fixed and movable two-function bracket |
| CN105586862A (en) * | 2014-11-11 | 2016-05-18 | 江苏海王星海洋油气装备有限公司 | Simple tubular pile type wellhead platform and construction method thereof |
| CN107152016A (en) * | 2016-03-03 | 2017-09-12 | 天津市海王星海上工程技术股份有限公司 | A kind of self installation simple wellhead platform and its installation method |
| CN107191138A (en) * | 2017-06-29 | 2017-09-22 | 中国石油天然气股份有限公司 | Deepwater composite conduit running tubular column and underwater installation method thereof |
| CN108463610A (en) * | 2015-12-18 | 2018-08-28 | 奥德弗吉尔钻探公司 | System and method for executing well operation |
| CN112077469A (en) * | 2020-08-25 | 2020-12-15 | 广东工业大学 | Method for continuously preheating and welding and installing giant maritime work pile leg in field and in multiple sections |
| CN112943175A (en) * | 2021-04-13 | 2021-06-11 | 上海帛曼科技中心 | Single-cylinder double-wellhead drilling and production equipment |
| CN113898318A (en) * | 2021-10-12 | 2022-01-07 | 北部湾大学 | Simple and easy well head platform of integral type |
| CN116696252A (en) * | 2023-08-07 | 2023-09-05 | 浙江华东岩土勘察设计研究院有限公司 | Hole protection casing frame lifting system for offshore exploration operation |
-
2011
- 2011-10-11 CN CN2011103062415A patent/CN103046521A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362478A (en) * | 2013-07-22 | 2013-10-23 | 江苏文汇钢业工程有限公司 | Preassembled type fixed and movable two-function bracket |
| CN105586862A (en) * | 2014-11-11 | 2016-05-18 | 江苏海王星海洋油气装备有限公司 | Simple tubular pile type wellhead platform and construction method thereof |
| CN108463610A (en) * | 2015-12-18 | 2018-08-28 | 奥德弗吉尔钻探公司 | System and method for executing well operation |
| CN107152016A (en) * | 2016-03-03 | 2017-09-12 | 天津市海王星海上工程技术股份有限公司 | A kind of self installation simple wellhead platform and its installation method |
| CN107191138A (en) * | 2017-06-29 | 2017-09-22 | 中国石油天然气股份有限公司 | Deepwater composite conduit running tubular column and underwater installation method thereof |
| CN112077469A (en) * | 2020-08-25 | 2020-12-15 | 广东工业大学 | Method for continuously preheating and welding and installing giant maritime work pile leg in field and in multiple sections |
| CN112943175A (en) * | 2021-04-13 | 2021-06-11 | 上海帛曼科技中心 | Single-cylinder double-wellhead drilling and production equipment |
| CN112943175B (en) * | 2021-04-13 | 2024-04-19 | 上海帛曼科技中心 | Single-cylinder double-wellhead drilling and production equipment |
| CN113898318A (en) * | 2021-10-12 | 2022-01-07 | 北部湾大学 | Simple and easy well head platform of integral type |
| CN116696252A (en) * | 2023-08-07 | 2023-09-05 | 浙江华东岩土勘察设计研究院有限公司 | Hole protection casing frame lifting system for offshore exploration operation |
| CN116696252B (en) * | 2023-08-07 | 2023-10-20 | 浙江华东岩土勘察设计研究院有限公司 | Hole protection casing frame lifting system for offshore exploration operation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103046521A (en) | Novel, simple and easy wellhead rack structure and construction method | |
| CN200971492Y (en) | Pile submarine drilling basal disc with suction | |
| CN110001870B (en) | Suction anchor intermittent penetration device and penetration method | |
| CN203007918U (en) | Self-lifting type drilling platform based on truss-type stake legs | |
| CN205653772U (en) | Small -size platform is from lift -type spud leg | |
| CN101169108A (en) | Oversea wind power generation tower structure and its mounting method | |
| WO2022126802A1 (en) | Self-advancing mining device and mining method for marine natural gas hydrate | |
| CN104002937A (en) | Offshore oilfield extending testing platform | |
| CN105003232B (en) | A kind of ultra-deep sea marine oil and gas dry type production system and its installation evacuation method | |
| CN107558488A (en) | A kind of embedding rock single pile of offshore wind farm and its construction system and construction method | |
| CN110541418A (en) | Self-locking nested deepwater drilling surface conduit and installation method thereof | |
| CN102116017A (en) | Foam platform for drilling on waterways | |
| CN201962696U (en) | Underwater cup-shaped foundation with functions of hydraulic scouring assisted sinking and foundation consolidation | |
| CN112878375A (en) | Vertical jacking implementation method and structure in underwater tunnel suitable for hard stratum | |
| CN207176723U (en) | A kind of embedding rock single pile of offshore wind farm and its construction system | |
| AU2006300972A1 (en) | Installation of underwater anchorages | |
| CN202023182U (en) | Waterborne drilling foam platform | |
| CN103556972A (en) | Self-installed ocean floor drilling template and installation method thereof | |
| CN202176267U (en) | Novel suction pile type seabed drilling base plate | |
| CN103423093A (en) | Platform floating type wind driven generator provided with suction caissons and used for sea surface of deep sea | |
| CN116263084A (en) | Drilling and production system and method for offshore natural gas hydrate development | |
| CN106368197A (en) | Mat type self-mounted platform with large wellheads | |
| CN101761341A (en) | Simple wellhead frame structure and construction method | |
| CN201347191Y (en) | Suction pile type ocean floor drilling novel basal disc | |
| CN103482036A (en) | Buoyancy tower type ocean platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |