CN106702990A - Installation process for back well drilling type platform sleeving-free wellhead - Google Patents
Installation process for back well drilling type platform sleeving-free wellhead Download PDFInfo
- Publication number
- CN106702990A CN106702990A CN201611166188.2A CN201611166188A CN106702990A CN 106702990 A CN106702990 A CN 106702990A CN 201611166188 A CN201611166188 A CN 201611166188A CN 106702990 A CN106702990 A CN 106702990A
- Authority
- CN
- China
- Prior art keywords
- casing pipe
- insulation casing
- sea
- water insulation
- waterproof casing
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides an installation process for a back well drilling type platform sleeving-free wellhead. The installation process comprises the following installation steps that 1, a water insulation casing pipe is divided into three or four sections of water insulation casing pipe bodies, the first two or three sections of water insulation casing pipe bodies are made to reach the designed driving depth after penetration into the seabed, and the tail section of water insulation casing pipe body is reserved; 2, a pipe guide frame is installed on the sea; 3, the first two or three sections of water insulation casing pipe bodies which reach the designed driving depth after penetration into the seabed are installed on the sea; 4, an upper assembling block is built on the land, and the tail section of water insulation casing pipe body is installed and fixed to a wellhead area of the upper assembling block; 5, the upper assembling block and the tail section of water insulation casing pipe body fixed to the upper assembling block are transported on the sea; and 6, after the upper assembling block is installed on the sea, fixing of the tail section of water insulation casing pipe body is removed, and the tail section of water insulation casing pipe body is connected back to the first two or three sections of water insulation casing pipe bodies. According to the installation process for the back well drilling type platform sleeving-free wellhead, the problems that the lifting difficulty of the upper assembling block on the sea is large, and the requirements for a weather window and the sea conditions are high are solved; and in addition, wellhead sleeving is avoided, so that the installation risk of the upper assembling block on the sea is reduced.
Description
Technical field
The present invention relates to the Attention problems of drilling platforms, more particularly to a kind of peace for exempting from set well head for rear drilling well type platform
Dress technique, belongs to Offshore Engineering field.
Background technology
At present, with the popularization and application of modularization rig, traditional drill ship carries out preboring after the completion of jacket installation
The platform of completion is gradually decreased, corresponding use crane barge driving into type waterproof casing design and installation technology, always edge
With the form matched with the pre- drilling well of drill ship, i.e.,：In the jacket Attention problems stage, by the disposable injection of waterproof casing to setting
Meter driving depth (its elevation of top is general at 23 meters or so).Although when such platform chunk is installed, waterproof casing top nothing is adopted
Oil tree, but still need to carry out the superelevation difficulty lifting that waterproof casing passes through two-layer chunk horizontal plate during chunk installation.
The content of the invention
It is a primary object of the present invention to the disadvantages mentioned above for overcoming prior art to exist, and provide a kind of rear drilling well type platform
Exempt from the mounting process of set well head, it is installed waterproof casing in two stages, i.e.,：Jacket Attention problems in the first stage
Period carry out install waterproof casing first three section or first-half (according to concrete scheme), minor details waterproof casing (i.e. final section every
Jacket pipe) hung on upper chunk bank in advance in the land formation stage, and load transporting and hoisting onto ship with chunk, make minor details water proof set
Pipe only needs tieback, without injection (i.e. without piling), not only solve upper chunk offshore lifting difficulty it is big, to weather window and
Sea situation situation requirement problem high；And, it is to avoid set well head, reduce upper chunk Attention problems risk, save conduit
Frame Attention problems duration, the efficiency for substantially increasing upper chunk sea.
The purpose of the present invention is realized by following technical scheme：
A kind of rear drilling well type platform exempts to cover the mounting process of well head, it is characterised in that：Using following installation steps：
The first step：Waterproof casing is divided into three sections or four sections, and is reached after making first-half or first three section injection sea bed
To design driving depth, and reserve the waterproof casing of minor details；
Second step：Jacket is at sea installed；
3rd step：Design driving depth is reached after the first-half of Attention problems waterproof casing or first three section injection sea bed；
4th step：In land formation upper chunk, and the waterproof casing of minor details is fixed on the well head of upper chunk
Area；
5th step：Marine transportation upper chunk and the minor details waterproof casing being fixed in upper chunk；
6th step：After the completion of Attention problems upper chunk, release minor details waterproof casing fixation, and with first-half or
The waterproof casing of first three section carries out tieback.
Beneficial effects of the present invention：
1) cause that chunk bank land formation completion status is maximized, saved the marine connection debugging stage well head of platform
The workload that plot structure beam is installed；
2) solve the problems, such as that upper chunk offshore lifting difficulty is big, high to weather window and the requirement of sea situation situation；
3) set well head, pre-hung minor details waterproof casing are avoided, the eccentricity issues of conventional well head chunk are correct for, top is reduced
Chunk offshore lifting risk；
4) the marine efficiency of upper chunk is improve while saving the jacket Attention problems duration.
Brief description of the drawings
Fig. 1 is mounting process schematic diagram of the present invention.
Major Symbol explanation in figure：
1. jacket, 2. waterproof casing, 3, upper chunk.
Specific embodiment
As shown in figure 1, the present invention uses following installation steps：
The first step：The segmentation of waterproof casing 2 is optimized, waterproof casing 2 three sections or four sections is divided into, and make preceding two
Design driving depth is reached after section or first three section (being determined depending on specific design requirement) injection sea bed, and reserves the water proof of minor details
Sleeve pipe 2；
Second step：Jacket 1 is at sea installed；
3rd step：The first-half of Attention problems waterproof casing 2 or first three section (being determined depending on specific design requirement) injection sea
Design driving depth is reached after bed, design standard is reached；
4th step：In land formation upper chunk 3, and the waterproof casing 2 of minor details is fixed on the well of upper chunk 3
Mouth region；
5th step：Marine transportation upper chunk 3 and the minor details waterproof casing 2 being fixed in upper chunk 3；
6th step：After the completion of Attention problems upper chunk 3, release minor details waterproof casing 2 fixation, and with first-half or
Person first three section waterproof casing 2 carry out tieback.
Above-mentioned jacket, upper chunk are prior art, and the technology of not specified (NS) is prior art, therefore is repeated no more.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, all
It is any simple modification, equivalent variations and the modification made to above example according to technical spirit of the invention, still falls within
In the range of technical solution of the present invention.
Claims (1)
1. a kind of rear drilling well type platform exempts to cover the mounting process of well head, it is characterised in that：Using following installation steps：
The first step：Waterproof casing is divided into three sections or four sections, and makes to reach after first-half or first three section injection sea bed to set
Meter driving depth, and reserve the waterproof casing of minor details；
Second step：Jacket is at sea installed；
3rd step：Design driving depth is reached after the first-half of Attention problems waterproof casing or first three section injection sea bed；
4th step：In land formation upper chunk, and the waterproof casing of minor details is fixed on the bank of upper chunk；
5th step：Marine transportation upper chunk and the minor details waterproof casing being fixed in upper chunk；
6th step：After the completion of Attention problems upper chunk, release minor details waterproof casing fixation, and with first-half or first three
The waterproof casing of section carries out tieback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611166188.2A CN106702990A (en) | 2016-12-16 | 2016-12-16 | Installation process for back well drilling type platform sleeving-free wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611166188.2A CN106702990A (en) | 2016-12-16 | 2016-12-16 | Installation process for back well drilling type platform sleeving-free wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106702990A true CN106702990A (en) | 2017-05-24 |
Family
ID=58938981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611166188.2A Pending CN106702990A (en) | 2016-12-16 | 2016-12-16 | Installation process for back well drilling type platform sleeving-free wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106702990A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560524A (en) * | 2018-04-13 | 2018-09-21 | 海洋石油工程股份有限公司 | For marine drilling well early period and the installation method of later stage platform |
| CN109505293A (en) * | 2018-10-16 | 2019-03-22 | 中海福陆重工有限公司 | A kind of building method of waterproof casing platform |
| CN111706289A (en) * | 2020-05-29 | 2020-09-25 | 海洋石油工程（青岛）有限公司 | Offshore oil platform wellhead area building module and building method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106162A (en) * | 1985-08-15 | 1987-03-04 | 麦克德莫特国际公司 | The conduit guide system of offshore drilling platform |
| CN103953022A (en) * | 2014-05-05 | 2014-07-30 | 中国海洋石油总公司 | Supersized wellhead platform |
| WO2014130320A1 (en) * | 2013-02-19 | 2014-08-28 | Conocophillips Company | Floatable subsea platform (fsp) |
| CN204225076U (en) * | 2014-11-06 | 2015-03-25 | 中国海洋石油总公司 | A kind of production wellhead fender bracket supported by waterproof casing |
-
2016
- 2016-12-16 CN CN201611166188.2A patent/CN106702990A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106162A (en) * | 1985-08-15 | 1987-03-04 | 麦克德莫特国际公司 | The conduit guide system of offshore drilling platform |
| WO2014130320A1 (en) * | 2013-02-19 | 2014-08-28 | Conocophillips Company | Floatable subsea platform (fsp) |
| CN103953022A (en) * | 2014-05-05 | 2014-07-30 | 中国海洋石油总公司 | Supersized wellhead platform |
| CN204225076U (en) * | 2014-11-06 | 2015-03-25 | 中国海洋石油总公司 | A kind of production wellhead fender bracket supported by waterproof casing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560524A (en) * | 2018-04-13 | 2018-09-21 | 海洋石油工程股份有限公司 | For marine drilling well early period and the installation method of later stage platform |
| CN108560524B (en) * | 2018-04-13 | 2020-03-27 | 海洋石油工程股份有限公司 | Installation method for offshore early drilling and later platform |
| CN109505293A (en) * | 2018-10-16 | 2019-03-22 | 中海福陆重工有限公司 | A kind of building method of waterproof casing platform |
| CN111706289A (en) * | 2020-05-29 | 2020-09-25 | 海洋石油工程（青岛）有限公司 | Offshore oil platform wellhead area building module and building method thereof |
| CN111706289B (en) * | 2020-05-29 | 2022-07-05 | 海洋石油工程（青岛）有限公司 | Offshore oil platform wellhead area building module and building method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: Offshore Oil Engineering Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: Offshore Oil Engineering Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |