CN202741985U - Drill conductor pile extension fixture of offshore jacket for deepwater wellhead platform - Google Patents
Drill conductor pile extension fixture of offshore jacket for deepwater wellhead platform Download PDFInfo
- Publication number
- CN202741985U CN202741985U CN 201220426478 CN201220426478U CN202741985U CN 202741985 U CN202741985 U CN 202741985U CN 201220426478 CN201220426478 CN 201220426478 CN 201220426478 U CN201220426478 U CN 201220426478U CN 202741985 U CN202741985 U CN 202741985U
- Authority
- CN
- China
- Prior art keywords
- pile extension
- extension fixture
- waterproof casing
- drill
- 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.)
- Expired - Fee Related
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Abstract
A drill conductor pile extension fixture of an offshore jacket for a deepwater wellhead platform consists of two sheets of clamping apparatuses and connection bolts, wherein each clamping apparatus is in a semicircle shape, an upper drill conductor and a lower drill conductor are hooped tightly by the two sheets of clamping apparatuses through the connection bolts and are welded in a butted way through a welding gap in the middle of the pile extension fixture, and after the drill conductors are welded, the drill conductor pile extension fixture is dismounted. Due to the connection by the drill conductor pile extension fixture, the floating crane matching time is effectively shortened, the influences, caused by weather and severe sea conditions, on the installation process are reduced, in addition, the drill conductor can be properly lengthened if the hoisting limit of a floating crane allows, so that the marine installation period is shortened, and the project cost is lowered.
Description
Technical field
The utility model relates to the innovation that a kind of offshore oil field development wellhead platform waterproof casing is installed the pile extension jig, especially is adapted to the wellhead platform in deep water hydrocarbon field.
Background technology
For general offshore wellhead platform, comprise jacket installation in the installation process, chunk is installed, connect debugging etc., the jacket installation process has generally comprised the installation exercise of waterproof casing, because the depth of water and working ship hang high restriction, waterproof casing generally is divided into some joints, except the first segment waterproof casing, other parts all need to dock welding with last joint waterproof casing before installation, need before the docking at bottom waterproof casing mouth every 60 degree weld metal baffle plates, so that concentric and remain on stable in the welding process when waterproof casing to be installed docks with stiff end, this mounting means is had relatively high expectations to sea situation, and because the metal baffle volume can not be excessive, so the waterproof casing merogenesis can not be oversize.For the deep water wellhead platform, because sea situation is comparatively abominable, and the waterproof casing total length lengthens along with the increase of the depth of water, and therefore, integral construction efficient is very low, and the risk in the installation process is higher.
Summary of the invention
For solving the installation question of existing deep water well head platform jacket waterproof casing, the utility model provides a kind of waterproof casing pile extension jig, this mechanism can effectively be connected and installed the up and down two parts waterproof casing in the process, effectively guarantee the stability of waterproof casing in installation process, and loop wheel machine cooperates the time short, affected by the weather sea situation less.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of deep water well head platform jacket waterproof casing pile extension jig is comprised of two jigs and connecting bolt, it is semicircle that jig becomes, in installation process, two parts waterproof casing was held tightly about two pile extension jigs were incited somebody to action by connecting bolt, to reach the requirement that waterproof casing is stable and weld, strap bolt is fastening finish after, carry out the installation preparation of next waterproof casing after the crane barge decoupling device, this moment, two parts waterproof casing docked welding by the void in the middle of the pile extension jig up and down, weld complete after, remove waterproof casing pile extension jig, and waterproof casing integral body transferred to design height, reinstall the pile extension jig, continue the installation of next joint waterproof casing.
The beneficial effects of the utility model are: by the connection of waterproof casing pile extension jig, can effectively reduce crane barge and cooperate the time, reduce weather and severe sea condition to the impact of installation process, and waterproof casing is in the situation that but crane barge hangs the high proper extension that allows, thereby shorten marine installation period, save engineering cost.
Description of drawings
Be described further below in conjunction with drawings and Examples.
Fig. 1 is the utility model main structure front view;
Fig. 2 is the utility model main structure side view;
Fig. 3 is the utility model main structure top view;
Fig. 4-6 is the utility model work progress schematic diagram.
Wherein: left jig of 1-; Right jig of 2-; The 3-connecting bolt; The 4-soldered; 5-pitching pile auxiliary loudspeaker mouth; Two jig seam 7-first segment waterproof casings about 6-; 8-jacket main structure surface; 9-second section waterproof casing.
The specific embodiment
As shown in the figure, deep water well head platform jacket waterproof casing pile extension jig is comprised of left jig 1, right jig 2 and connecting bolt 3.After first segment waterproof casing 7 installs, by the crane barge cooperation pile extension utensil is installed in the waterproof casing top that has fixed, all bolts are suitably afterburning, insert second section waterproof casings 9 by pitching pile auxiliary loudspeaker mouth 5.Crane barge lifting second section waterproof casing 9, insert jig, about the 6 place's weld bonds docking of two jig seams complete after, all bolted are complete, hold up and down two parts waterproof casing tightly, the crane barge uncoupling continues other work, and can two save waterproof casings up and down this moment from soldered 4 welding, weld complete after, remove bolt, the crane barge cooperation removes two pile extension jigs, finishes the welding job of residue weld seam, whole waterproof casing after the crane barge lifting welding is transferred to design height, reinstall the pile extension jig, repeat above-mentioned steps, until all waterproof casings install.
Claims (1)
1. deep water well head platform jacket waterproof casing pile extension jig, formed by two jigs and connecting bolt, it is characterized in that jig becomes semicircle, two parts waterproof casing was held tightly about two jigs were incited somebody to action by connecting bolt, two parts waterproof casing docks welding by the void in the middle of the pile extension jig up and down, weld complete after, remove waterproof casing pile extension jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426478 CN202741985U (en) | 2012-08-27 | 2012-08-27 | Drill conductor pile extension fixture of offshore jacket for deepwater wellhead platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426478 CN202741985U (en) | 2012-08-27 | 2012-08-27 | Drill conductor pile extension fixture of offshore jacket for deepwater wellhead platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202741985U true CN202741985U (en) | 2013-02-20 |
Family
ID=47701433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220426478 Expired - Fee Related CN202741985U (en) | 2012-08-27 | 2012-08-27 | Drill conductor pile extension fixture of offshore jacket for deepwater wellhead platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202741985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113264161A (en) * | 2021-06-28 | 2021-08-17 | 江苏金风科技有限公司 | Tower frame butt joint tool and tower frame butt joint method |
-
2012
- 2012-08-27 CN CN 201220426478 patent/CN202741985U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113264161A (en) * | 2021-06-28 | 2021-08-17 | 江苏金风科技有限公司 | Tower frame butt joint tool and tower frame butt joint method |
| CN113264161B (en) * | 2021-06-28 | 2022-07-26 | 江苏金风科技有限公司 | Tower frame butt joint tool and tower frame butt joint method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130827 |