CN204000813U - A kind of standardization that adopts floating holder method to install can be moved formula wellhead platform - Google Patents
A kind of standardization that adopts floating holder method to install can be moved formula wellhead platform Download PDFInfo
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- CN204000813U CN204000813U CN201420387822.5U CN201420387822U CN204000813U CN 204000813 U CN204000813 U CN 204000813U CN 201420387822 U CN201420387822 U CN 201420387822U CN 204000813 U CN204000813 U CN 204000813U
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- wellhead platform
- upper chunk
- platform
- leg
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- 238000007667 floating Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 230000004308 accommodation Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 12
- 238000004064 recycling Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 101150006257 rig-4 gene Proteins 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The utility model discloses a kind of standardization that adopts floating holder method to install and can move formula wellhead platform.Described wellhead platform comprises upper chunk and four leg's jackets leg; Described upper chunk comprises the deck of cellar, middle deck and the main deck that set gradually from the bottom to top; Between described upper chunk and described jacket leg for being threaded.The utility model can be realized the recycling that repeats of oil field development upper chunk facility, connect and float holder method and install by flange, greatly reduce the marine set-up time, construction installation period and engineering services investment are reduced, operating expenses and the dependence to construction equipment are reduced, can share oil field development cost and risk, have broad application prospects for domestic greater coasting area oil field development.
Description
Technical field
The utility model relates to a kind of standardization that adopts floating holder method to install can move formula wellhead platform, belongs to ocean engineering field.
Background technology
The conventional offshore platform top facility complete function that current domestic marine site is used, the cost of whole upper chunk equipment and structure is very high, according to statistical analysis, 50 meters of depth of waters account for the more than 70% of whole platform gross investment with its upper chunk investment of interior four leg's jackets platform.And the marine installation of platform need to be employed large-scale floating crane resource, and mounting cost is high, makes project face larger economic risk, dollar return is difficult to ensure, especially for middle-size and small-size oil field, adopt routine techniques and equipment, will more be difficult to obtain gratifying dollar return.In addition, the platform that at present domestic floating holder method is installed is macrotype platform, and the middle-size and small-size platform of this four legs not yet has the case that adopts floating holder method to install; The platform that in the past can move is the platform that adopts cylindrical foundation form simultaneously, does not have the platform moved that adopts jacket form; And upper chunk and jacket adopt and are welded to connect, inconvenience dismounting and again installation.
The oil and gas production at China sea improved year by year in recent years, the operation of offshore oilfield requires very urgent, and construction period anxiety, often will face the construction of simultaneously carrying out multiple field facilities, this has caused short-term to be increased sharply to the demand of steel, and the acquisition cycle of steel is forced to extend.Purchase and the design cycle for shortening, ensure the operation on time in oil field, the resettlement recycling of employing standardized designs and platform is undoubtedly a kind of effectively shortening engineering construction cycle, promotes the effective means of economic benefit.
Based on above-mentioned factor, the not reproducible use of conventional wellhead platform, install and rely on construction equipment, the design-build cycle key factor that is still the conventional oil field of restriction and marginal oil field such as long.If realize the standardized designs construction of upper chunk, quick marine installation and recycling with the form of less expensive, the development investment in single oil field will be saved greatly.
Provide a kind of standardization that adopts floating holder method to install can move the alternative conventional wellhead platform upper chunk of formula wellhead platform upper chunk and complete the exploitation in target oil field; after target oilfield exploitation, platform upper chunk can be floated holder resettlement to another oil field continuation use; realize the recycling of upper chunk; build installation period and construction investment for saving; protection reservoir, promoting oilfield economic benefit all has very large benefit.
Utility model content
The purpose of this utility model is to provide a kind of standardization that adopts floating holder method to install can move formula wellhead platform, the well workover of the utility model wellhead platform collection is defeated outside recovering the oil, measuring, life is held in one, be applicable to reusing of the middle-size and small-size oil field development of Production Life about 10 years, can realize the recycling that repeats of oil field development upper chunk facility, thereby significantly reduce the development cost in oil field, this part oil field is early day by day produced.
The standardization that the floating holder method of employing provided by the utility model is installed can be moved formula wellhead platform, it is characterized in that: described wellhead platform comprises upper chunk and four leg's jackets leg;
Described upper chunk comprises the deck of cellar, middle deck and the main deck that set gradually from the bottom to top;
Between described upper chunk and described jacket leg for being threaded.
In the described formula moved wellhead platform, between described upper chunk and described jacket leg, be connected by flange.
In the described formula moved wellhead platform, described main deck is provided with workover module and accommodation module;
Described workover module comprises platform workover rig and ancillary facility;
Described accommodation module comprises life building and is arranged at described life helicopter deck upstairs.
In the described formula moved wellhead platform, described middle deck is provided with production module;
Described production module comprises production tree and waterproof casing, and described production tree is located on described middle deck, and its lower end connects described waterproof casing, and described waterproof casing extends to seabed.
In the described formula moved wellhead platform, described deck of cellar is provided with the outer defeated module of oil gas metering.
In the described formula moved wellhead platform, the spacing between 2 described jacket legs is 18m～22m, both can ensure to meet floating holder resources on board rich of chunk construction requirement, also can avoid by the structural strength problem of bringing compared with large span simultaneously.
The utility model wellhead platform, compared with conventional 4 leg platforms, has following characteristics:
1, conventional platform upper chunk is connected with jacket to adopt and is welded to connect, and is moving of implementation platform, and the utility model middle and upper part chunk is connected employing flange connection with jacket;
2, between following, the main leg of two row in chunk bottom deck, form wide open space, avoid arranging structural member, the bottom jacket platform simultaneously coordinating with it also possesses certain wide open space, therefrom passes through for floating holder barge;
3, for realizing the recycling of upper chunk, the upper chunk structure design life-span is 30 years (or longer), and the oil field for Production Life about 10 years can repeatedly reuse.
4, platform adopts standardized designs, meet the platform standard basic demand in corresponding military service marine site.
The utility model is owing to taking above technical scheme, and it has the following advantages:
Upper chunk integrates well workover and recovers the oil, measures outer defeated, life support function, and the projected life of structure and equipment is longer, and upper chunk adopts flange to be connected with lower guide pipe support, can move comparatively efficiently and reuse.Realize sharing equally of Oilfield Development Engineering facility expense, reduced single Invitation of Oilfield Development, promoted oilfield economic benefit.
Upper chunk adopts small-sized barge to float holder method and installs, and its resettlement is simultaneously installed and also can be used floating holder method to install.Reduce the dependence to large-scale floating crane boats and ships, reduced on the one hand operating expenses, also alleviated the pressure that construction equipment overburden is brought to programming simultaneously.
Upper chunk adopts floating holder method to install, and it is shorter that the required duration is installed, shifts at sea, is conducive to the protection to oil reservoir.
Platform adopts standardized designs, has reduced design-build and has purchased the duration, to promoting region rolling development to have greater significance.
The utility model can be realized the recycling that repeats of oil field development upper chunk facility, connect and float holder method and install by flange, greatly reduce the marine set-up time, construction installation period and engineering services investment are reduced, operating expenses and the dependence to construction equipment are reduced, can share oil field development cost and risk, have broad application prospects for domestic greater coasting area oil field development.
Brief description of the drawings
Fig. 1 is the schematic diagram of the installation of the utility model wellhead platform and recycling process.
Fig. 2 is the schematic diagram that the utility model wellhead platform middle and upper part chunk is connected by flange with jacket leg, and wherein Fig. 2 (a) is overall schematic, the top view that Fig. 2 (b) is flange.
Fig. 3 is that the facade of the utility model wellhead platform is always schemed.
Fig. 4 is the top view of main deck in the utility model wellhead platform.
In figure, each mark is as follows:
1 deck of cellar, 2 middle decks, 3 main decks, 4 workover rigs, 5 production trees, the 6th life buildings, 7 helicopter decks.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As Figure 1-Figure 4, for standardization of the present utility model can be moved formula wellhead platform, platform is established 4 main legs, 16 well slots, workover rig, 40 people life buildings, helicopter platform and all kinds of production of hydrocarbons facility, 30 years projected lives.Platform is steel space truss structure, and it is in 50m that platform adapts to the depth of water, has workover module, production module, the outer defeated module of oil gas metering and accommodation module etc.Upper chunk adopts standardized designs, establishes three layers of deck, is followed successively by deck of cellar 1, middle deck 2 and main deck 3 from bottom to top.Upper chunk is provided with workover module, production module, the outer defeated module of oil gas metering and accommodation module etc.Workover module is arranged on main deck 3, comprises workover rig 4 and ancillary facility, and the production tree 5 in production module is arranged on middle deck 2, its lower connection waterproof casing, and after platform installs, waterproof casing extends to seabed.Accommodation module is arranged on main deck 3, comprises life house 6 and helicopter deck 7.The staffing of life house 6 is 40 people, and helicopter deck 7 is arranged on life roof portion.The outer defeated metering module of oil gas is arranged on deck of cellar 2.
As shown in Figure 3, between the main leg of two row below 1 of the deck of cellar in upper chunk, structural member is not set, forms wide open space, main leg spacing is 20m.The bottom jacket platform simultaneously coordinating with it also must possess certain wide open space, therefrom passes through for floating holder barge.
As shown in Figure 2, upper chunk is connected by flange with lower guide pipe support, for ease of marine abutting joint, is provided with long slotting point in upper chunk leg.
As shown in Figure 1, key step is as follows for upper chunk installation and recycling process:
1) in advance by jacket installation in precalculated position, and squeeze into piling bar;
2) ask barging to predetermined maritime area by floating upper chunk, prepare into ship;
3) enter ship to jacket top, point is inserted in the main leg bottom of upper chunk and aim at the main leg of jacket, slowly ballast, the weight of carrying out upper chunk shifts;
4), after completing upper chunk total weight being turned, barge continues ballast, is down to predetermined altitude and moves back ship;
5) carry out the connection of flange fastener, and carry out the connection debugging of upper chunk equipment, and use drill ship to pierce water proof to pipe pipe;
So far platform reaches the state of putting into operation, completes and when production operation need be carried out recycling by upper chunk, carries out lower continuous step until this oil field.
6) remove after this platform riser pipe and other pillar cables, floating holder barge enters precalculated position, upper chunk below, and row is carried chunk braced structures on barge is connected with upper chunk bottom;
7) remove flange bolting, continue row and carry, make upper chunk weight all be transferred to barge;
8) move back ship, barge carried to upper chunk and drive towards recycling target marine site, repeating step 1) to 5) can realize recycling.
Claims (6)
1. the standardization that adopts floating holder method to install can be moved a formula wellhead platform, it is characterized in that: described wellhead platform comprises upper chunk and four leg's jackets leg;
Described upper chunk comprises the deck of cellar, middle deck and the main deck that set gradually from the bottom to top;
Between described upper chunk and described jacket leg for being threaded.
2. the formula wellhead platform of moving according to claim 1, is characterized in that: between described upper chunk and described jacket leg, be connected by flange.
3. the formula wellhead platform of moving according to claim 1 and 2, is characterized in that: described main deck is provided with workover module and accommodation module;
Described workover module comprises platform workover rig and ancillary facility;
Described accommodation module comprises life building and is arranged at described life helicopter deck upstairs.
4. the formula wellhead platform of moving according to claim 3, is characterized in that: described middle deck is provided with production module;
Described production module comprises production tree and waterproof casing, and described production tree is located on described middle deck, and its lower end connects described waterproof casing, and described waterproof casing extends to seabed.
5. the formula wellhead platform of moving according to claim 4, is characterized in that: described deck of cellar is provided with the outer defeated module of oil gas metering.
6. the formula wellhead platform of moving according to claim 5, is characterized in that: the spacing between 2 described jacket legs is 18m～22m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387822.5U CN204000813U (en) | 2014-07-14 | 2014-07-14 | A kind of standardization that adopts floating holder method to install can be moved formula wellhead platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387822.5U CN204000813U (en) | 2014-07-14 | 2014-07-14 | A kind of standardization that adopts floating holder method to install can be moved formula wellhead platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000813U true CN204000813U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420387822.5U Expired - Lifetime CN204000813U (en) | 2014-07-14 | 2014-07-14 | A kind of standardization that adopts floating holder method to install can be moved formula wellhead platform |
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| Country | Link |
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| CN (1) | CN204000813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088266A (en) * | 2014-07-14 | 2014-10-08 | 中国海洋石油总公司 | Standardized movable wellhead platform installed in floatover mode |
| CN105292392A (en) * | 2015-11-09 | 2016-02-03 | 中国海洋石油总公司 | Relocatable self-elevating drilling production platform and self-installing and recycling method thereof |
-
2014
- 2014-07-14 CN CN201420387822.5U patent/CN204000813U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088266A (en) * | 2014-07-14 | 2014-10-08 | 中国海洋石油总公司 | Standardized movable wellhead platform installed in floatover mode |
| CN105292392A (en) * | 2015-11-09 | 2016-02-03 | 中国海洋石油总公司 | Relocatable self-elevating drilling production platform and self-installing and recycling method thereof |
| CN105292392B (en) * | 2015-11-09 | 2017-10-20 | 中国海洋石油总公司 | One kind can move jack up drilling production platform and its self installation and recovery method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |