CN205399376U - Simple and easy wellhead platform - Google Patents
Simple and easy wellhead platform Download PDFInfo
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- CN205399376U CN205399376U CN201620159451.4U CN201620159451U CN205399376U CN 205399376 U CN205399376 U CN 205399376U CN 201620159451 U CN201620159451 U CN 201620159451U CN 205399376 U CN205399376 U CN 205399376U
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- superstructure
- pit shaft
- mat
- shaft frame
- spud leg
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Abstract
The utility model relates to a simple and easy wellhead platform, through the adoption triangle -shaped box deck and the pad that sinks, to the requirement reduction of building the place, the marine transportation can be wet and dragged to realize marinely from installation, later stage drilling operation convenience, it is marine from the installation of going up and down through adopting single -column formula spud leg can use one set of elevating gear to realize, save the crane barge resource, through sinking pad, spliced pole and bucket foundation combination, can realize using in different depth of water sea areas, and the recovery is convenient, but reuse, through adopting well barrel holder, can develop the actual need according to the sea and provide different well head numbers.
Description
Technical field
This utility model relates to a kind of simple wellhead platform, especially with regard to the wellhead platform of a kind of bucket foundation box beam formula list lower limb lifting.
Background technology
Under the environmental condition that current international oil price is low, offshore oil and gas field exploitation is required to meet on the basis of certain investment yield and reduces cost as far as possible, and this point is particularly important for the exploitation of marine marginal field.The engineering cost of marine marginal field exploitation mainly includes structure and facilities design expense, expenditure of construction, Attention problems expense and is drilled well cost components, will reduce total investment expenses, need to set about from these several respects.Conventional manifold posture wellhead platform version is complicated, and upper chunk is huge, and the design cycle is longer, build the side, building technology are required higher, need the extra large work harbour in specialty to build, then draw shipment or with the upper barge of large-scale floating crane lifting, transport to installing marine site with barge container.Catheterostat and upper brace Attention problems need to use large-scale floating crane, and piling bar is squeezed into needs to use pile hammer, and need to be connected with catheterostat grouting, and Attention problems is costly.Well head quantity is basic it has been determined that increase well head after being difficult to after construction completes, or needs are paid bigger cost and could be increased well head.For the exploitation of marine marginal field, adopting conventional catheters posture wellhead platform scheme, engineering cost remains high, it is possible to cause that oil gas field is without Development volue.
Present patent application proposes a kind of simple wellhead platform just in this context.
Utility model content
Main purpose of the present utility model is in that the disadvantages mentioned above overcoming prior art to exist, and provides a kind of simple wellhead platform, by adopting triangle casing deck and mat, the requirement of build the side is reduced, marine transportation is wettable drags, and realizes marine self installation, and later stage drillng operation is convenient；Marine from lifting installation by adopting only pillar spud leg that a set of lowering or hoisting gear can be used to realize, save crane barge resource；Combined by mat, joint pin and bucket foundation, it may be achieved at different water depth marine usage, and reclaim conveniently, repeatable utilization；By adopting pit shaft frame, the different well head number of offer can be actually needed according to Offshore development.
The purpose of this utility model is realized by techniques below scheme:
A kind of simple wellhead platform, include superstructure, spud leg, base structure and pit shaft frame, described base structure is by mat, joint pin and bucket foundation composition, described pit shaft frame is by several levels, vertical and oblique steel pipe forms, the deck of described superstructure is triangle body structure, described spud leg is single steel pipe column, described spud leg is through the center of described superstructure and is connected with described superstructure by lowering or hoisting gear, described spud leg lower end and described mat center weld, described mat outboard end is connected with voussoir by bearing pin with described joint pin upper end, described joint pin lower end is welded with described bucket foundation upper end, described pit shaft frame top is through described superstructure and welds with described superstructure, described pit shaft frame lower end is connected with the grouting of described joint pin.
Described mat is made up of several identical box beams, and described box beam one end welds together, and the other end is distributed uniformly and circumferentially.
Described pit shaft frame number visualisation platforms can be actually needed adjustment according to Offshore development, no more than 3.
The beneficial effects of the utility model: the requirement of build the side, owing to adopting technique scheme, by adopting triangle casing deck and mat, is reduced by this utility model, and marine transportation is wettable drags, and realize marine self installation, later stage drillng operation is convenient；Marine from lifting installation by adopting only pillar spud leg that a set of lowering or hoisting gear can be used to realize, save crane barge resource；Combined by mat, joint pin and bucket foundation, it may be achieved at different water depth marine usage, and reclaim conveniently, repeatable utilization；By adopting pit shaft frame, the different well head number of offer can be actually needed according to Offshore development.
Below in conjunction with drawings and Examples, this utility model is described further.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 floats schematic diagram certainly after water under this utility model superstructure, spud leg and mat integral hoisting；
Fig. 3 is this utility model joint pin, bucket foundation, the fixing schematic diagram of pit shaft frame shipment；
Fig. 4 is this utility model superstructure, spud leg and mat towage schematic diagram；
Fig. 5 is this utility model barge towage schematic diagram；
Fig. 6 is that this utility model joint pin, bucket foundation, mat group are to schematic diagram；
Fig. 7 is that in this utility model mat, schematic diagram is transferred in water filling；
Fig. 8 is that this utility model suction pile is from reentry mud schematic diagram；
Fig. 9 is that this utility model suction pile negative pressure enters mud schematic diagram；
Figure 10 is that this utility model superstructure rises schematic diagram；
Figure 11 is this utility model pit shaft frame scheme of installation；
Figure 12 is that in this utility model work progress, schematic diagram squeezed into by waterproof casing.
Major label description in figure:
1 superstructure；2 spud legs；3 mats；4 joint pins；5 bucket foundations；6 pit shaft framves；7 lowering or hoisting gears；8 small-sized barges；9 tugboats；10 small-sized crane barges.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, this utility model is described in detail.
As shown in Figure 1, this utility model includes superstructure 1, spud leg 2, base structure and pit shaft frame 6, the deck of superstructure 1 is triangle body structure, spud leg 2 is made up of single steel pipe column, base structure is made up of mat 3, joint pin 4 and bucket foundation 5, and pit shaft frame 6 is made up of several levels, vertical and oblique steel pipe；Spud leg 2 is through the center of superstructure 1 and is connected with superstructure 1 by lowering or hoisting gear 7, spud leg 2 lower end and mat 3 center weld, mat 3 outboard end is connected with voussoir by bearing pin with joint pin 4 upper end, joint pin 4 lower end is welded with bucket foundation 5 upper end, pit shaft frame 6 top is through superstructure 1 and welds with superstructure 1, and pit shaft frame 6 lower end is connected with joint pin 4 grouting.
Mat 3 is made up of 3 identical box beams, and box beam one end welds together, and the other end is along the circumferential direction uniformly distributed in hexagonal angle.
The number visualisation platforms of pit shaft frame 6 can be actually needed adjustment according to Offshore development, no more than 3.
As shown in Fig. 2-Figure 12, the construction technology of this utility model simple wellhead platform, comprise the following steps:
(1) after wellhead platform has been built, with wharf crane by water under superstructure 1, spud leg 2 and mat 3 integral hoisting, make it from floating in water (see Fig. 2), lift together with joint pin 4 and bucket foundation 5(weld with wharf crane), pit shaft frame 6 is to small-sized barge 8, and it is welded and fixed (see Fig. 3), by a tugboat 9 towage superstructure 1, spud leg 2 and mat 3 overall (see Fig. 4), the small-sized barge 8 (see Fig. 5) of another tugboat 9 towage；
(2) in anchorage with 10 groups of small-sized crane barge to joint pin 4, bucket foundation 5, mat 3, and with bearing pin and voussoir by joint pin 4 and mat 3 fixing (see Fig. 6)；
(3) after arriving installation marine site and positioning, superstructure is from floating in water, water filling in mat 3, start lowering or hoisting gear 7 and transfer mat 3 (see Fig. 7), bucket foundation 5 relies on it from reentrying mud (see Fig. 8), after reaching stake soil air-proof condition, extract the water in bucket foundation 5 with water pump, make bucket foundation 5 under suction function in injection ocean bottom soil (see Fig. 9)；
(4) start lowering or hoisting gear 7 and superstructure 1 is raised up to design height (see Figure 10)；
(5) starting small-sized crane barge 10 and lift 6 times water of pit shaft frame, pit shaft frame 6 lower end is inserted in joint pin 4 and connection of being in the milk, and pit shaft frame 6 upper end is welded (see Figure 11) with superstructure 1；
(6) with pile hammer, waterproof casing is squeezed into ocean bottom soil projected depth (see Figure 12) along pit shaft frame 6 with small-sized crane barge 10.
The above, it it is only preferred embodiment of the present utility model, not this utility model is done any pro forma restriction, every any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, all still falls within the scope of technical solutions of the utility model.
Claims (3)
1. a simple wellhead platform, include superstructure, spud leg, base structure and pit shaft frame, described base structure is by mat, joint pin and bucket foundation composition, described pit shaft frame is by several levels, vertical and oblique steel pipe forms, it is characterized in that the deck of described superstructure is triangle body structure, described spud leg is single steel pipe column, described spud leg is through the center of described superstructure and is connected with described superstructure by lowering or hoisting gear, described spud leg lower end and described mat center weld, described mat outboard end is connected with voussoir by bearing pin with described joint pin upper end, described joint pin lower end is welded with described bucket foundation upper end, described pit shaft frame top is through described superstructure and welds with described superstructure, described pit shaft frame lower end is connected with the grouting of described joint pin.
2. simple wellhead platform according to claim 1, it is characterised in that described mat is made up of several identical box beams, described box beam one end welds together, and the other end is distributed uniformly and circumferentially.
3. simple wellhead platform according to claim 1, it is characterised in that described pit shaft frame number visualisation platforms can be actually needed adjustment according to Offshore development, no more than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620159451.4U CN205399376U (en) | 2016-03-03 | 2016-03-03 | Simple and easy wellhead platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620159451.4U CN205399376U (en) | 2016-03-03 | 2016-03-03 | Simple and easy wellhead platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205399376U true CN205399376U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620159451.4U Active CN205399376U (en) | 2016-03-03 | 2016-03-03 | Simple and easy wellhead platform |
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| CN (1) | CN205399376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042818A (en) * | 2019-03-01 | 2019-07-23 | 武汉船用机械有限责任公司 | Offshore wind farm mounting platform |
-
2016
- 2016-03-03 CN CN201620159451.4U patent/CN205399376U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042818A (en) * | 2019-03-01 | 2019-07-23 | 武汉船用机械有限责任公司 | Offshore wind farm mounting platform |
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| GR01 | Patent grant |