CN102720918A - Outer sealing device for marine riser - Google Patents
Outer sealing device for marine riser Download PDFInfo
- Publication number
- CN102720918A CN102720918A CN2012101925161A CN201210192516A CN102720918A CN 102720918 A CN102720918 A CN 102720918A CN 2012101925161 A CN2012101925161 A CN 2012101925161A CN 201210192516 A CN201210192516 A CN 201210192516A CN 102720918 A CN102720918 A CN 102720918A
- Authority
- CN
- China
- Prior art keywords
- marine riser
- sealing device
- outer sealing
- seal
- gland
- 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
An outer sealing device for a marine riser comprises lifting pins, a packing gland, seal gaskets and a body. Lifting rings and positioning pins are arranged on the body to facilitate lifting during mounting. Adjusting nuts are arranged at two ends of the lateral side of the body and can be locked outside the marine riser. The outer sealing device has the advantages that the outer sealing device can be mounted out the marine riser for sealing when a connecting seal fails after long-term use, and the outer sealing device is simple in structure, convenient to mount, widely applicable and the like.
Description
Technical field
The invention belongs to a kind of ocean marine riser outer seal device.
Background technique
Along with the increase in operation time of marine oil and gas production platform; A lot of production platforms all are faced with the marine riser etching problem, possibly cause the marine riser corrosion leakage when serious, thus pollution of marine environment; Even can cause the oil gas well to close a well in, and bring difficulty when giving ocean abandoned well operation.At sea usually through at marine riser outer brush anticorrosive property paint, through installing the corrosion that scraper slows down marine riser additional, increase marine riser working life.After the marine riser corrosion leakage took place, if adopt replacing marine riser method to solve this problem, the cycle is long, cost is high, and was not high from construction cycle and economic evaluation aspect consideration feasibility.
Summary of the invention
The purpose of this invention is to provide a kind of ocean marine riser outer seal device, realize the sealing of marine riser leakage point, thereby reach the effect of protecting the marine environment when continuing production or abandoned well.
The present invention is made up of lifting pin, Gland, sealing gasket, body, and being symmetrically distributed up and down at body promotes pin, Gland and bolt, packing seal, plays the leak point upper and lower end effect of sealing marine riser.
Be symmetrically distributed on the described body locating stud, hanger are fixed on the marine riser outside through the lock bolt combination, through gasket seal sealing marine riser leakage point both sides.
Described body, Gland and bolt, packing seal, gasket seal are bilateral symmetry two-part, are connected through lock bolt.
Main effect of the present invention:
1) the sealing apparatus structure is simple, and cost of investment is low, easy for installation.
2) can when ordinary production or abandoned well operation, prevent that annular space oily water or oil-cut mud from leaking, and protects the marine environment.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that this is with bright plan view.
Embodiment
Below in conjunction with accompanying drawing practical implementation method of the present invention is further described.
Like Fig. 1, shown in 2, can packing seal 3 be fixed on the body 4 through Gland and bolt 2 in advance on ground.Promote pin 1 Gland and bolt 2 are mentioned easily, the convenient installation, after Gland installed, promoting pin 1 can lay down.
When well head is installed, can be connected through compressed air hoist and slowly send body 4 to marine riser external leaks point on the hanger 6, be locked at the marine riser outside to seal arrangement through lock bolt combination 7.Lock bolt make up 7 urgent after, can make seal arrangement be fixed on the marine riser outside through locating stud 5, prevent that it is to lower slider.Guarantee leakage point when mounted between two groups of packing seals 3, through packing seal 3 seal leakage point upper and lower end, gasket seal 8 is fixed in the body 4 through lock bolt combination 7, plays seal leakage point double side acting, can guarantee the sealing fully of leakage point like this.
Claims (3)
1. ocean marine riser outer seal device; Form by lifting pin, Gland, sealing gasket, body; It is characterized in that being symmetrically distributed up and down at body (4) promotes pin (1), Gland and bolt (2), packing seal (3), plays the leak point upper and lower end effect of sealing marine riser.
2. according to the described ocean of claim 1 marine riser outer seal device, it is characterized in that body (4) upward symmetrical distribution locating stud (5), hanger (6), be fixed on the marine riser outside, through gasket seal (8) sealing marine riser leakage point both sides through lock bolt combination (7).
3. according to the described ocean of claim 1 marine riser outer seal device, it is characterized in that body (4), Gland and bolt (2), packing seal (3), gasket seal (8) are bilateral symmetry two-part, connect through lock bolt combination (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101925161A CN102720918A (en) | 2012-06-07 | 2012-06-07 | Outer sealing device for marine riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101925161A CN102720918A (en) | 2012-06-07 | 2012-06-07 | Outer sealing device for marine riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720918A true CN102720918A (en) | 2012-10-10 |
Family
ID=46946751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101925161A Pending CN102720918A (en) | 2012-06-07 | 2012-06-07 | Outer sealing device for marine riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720918A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139207Y (en) * | 1992-11-19 | 1993-07-28 | 无锡县管道附件厂 | Device for quickly covering leak in pipe |
| US6293593B1 (en) * | 1999-10-21 | 2001-09-25 | Westinghouse Electric Company Llc | Collar clamp assembly for repairing core spray piping |
| CN1746776A (en) * | 2004-09-06 | 2006-03-15 | 东京毅力科创株式会社 | Substrate processing apparatus and substrate positioning device |
| CN200999943Y (en) * | 2006-12-15 | 2008-01-02 | 盖永超 | Pressure pipe line rapid leak mender |
| CN201090899Y (en) * | 2007-10-30 | 2008-07-23 | 阜新市水源工程公司 | Under-pressure quick maintaining fluid sac type piping clip |
| CN101435524A (en) * | 2007-11-16 | 2009-05-20 | 中国海洋石油总公司 | Submarine pipeline underwater flange seal protecting device |
| KR20120002285A (en) * | 2010-06-30 | 2012-01-05 | 지원건설(주) | Apparatus for preventing water leak of pipe joint and constructing method thereof |
| CN202674702U (en) * | 2012-06-07 | 2013-01-16 | 中国海洋石油总公司 | Outer sealing device for marine riser |
-
2012
- 2012-06-07 CN CN2012101925161A patent/CN102720918A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139207Y (en) * | 1992-11-19 | 1993-07-28 | 无锡县管道附件厂 | Device for quickly covering leak in pipe |
| US6293593B1 (en) * | 1999-10-21 | 2001-09-25 | Westinghouse Electric Company Llc | Collar clamp assembly for repairing core spray piping |
| CN1746776A (en) * | 2004-09-06 | 2006-03-15 | 东京毅力科创株式会社 | Substrate processing apparatus and substrate positioning device |
| CN200999943Y (en) * | 2006-12-15 | 2008-01-02 | 盖永超 | Pressure pipe line rapid leak mender |
| CN201090899Y (en) * | 2007-10-30 | 2008-07-23 | 阜新市水源工程公司 | Under-pressure quick maintaining fluid sac type piping clip |
| CN101435524A (en) * | 2007-11-16 | 2009-05-20 | 中国海洋石油总公司 | Submarine pipeline underwater flange seal protecting device |
| KR20120002285A (en) * | 2010-06-30 | 2012-01-05 | 지원건설(주) | Apparatus for preventing water leak of pipe joint and constructing method thereof |
| CN202674702U (en) * | 2012-06-07 | 2013-01-16 | 中国海洋石油总公司 | Outer sealing device for marine riser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204060602U (en) | A kind of bimetallic (spring cone) seal formula casing head | |
| CN2893366Y (en) | Sealed insulating joint | |
| CN204879266U (en) | Harf union joint | |
| CN101435524A (en) | Submarine pipeline underwater flange seal protecting device | |
| CN202674309U (en) | Rubber sealing ring | |
| CN202674702U (en) | Outer sealing device for marine riser | |
| CN102720918A (en) | Outer sealing device for marine riser | |
| CN201738915U (en) | Sealing and suppressing device of well sealing device for oil field | |
| CN200989509Y (en) | Spigot-and-socket multifunction fast urgent repair device | |
| CN204024571U (en) | high-pressure gas well casing head | |
| CN104963649A (en) | Embedded sealing and isolating sealed casing head | |
| CN201954122U (en) | Sealing device for wire through hole on top of cab | |
| CN202031977U (en) | Sealing device for joint of upper and lower inner rings of slewing bearing | |
| CN202914271U (en) | Stuffing box with positioning ring and water seal bolt | |
| CN104633380A (en) | Pipeline leakage double-slip containing cavity plugging device | |
| CN204493777U (en) | Corrosion preventive ball-valve stuffing box structure | |
| CN201170396Y (en) | Connecting flange | |
| CN206328767U (en) | A kind of foundation ditch waterproof steel bushing tubular construction | |
| CN203067122U (en) | Cylinder ring with high sealing performance | |
| CN204782901U (en) | Embedded seal and separate seal cover tube head | |
| CN204327648U (en) | A kind of hydraulic jack sectionalized piston | |
| CN203560667U (en) | Binding belt slip plugging device applicable to pipeline leakage | |
| CN205745274U (en) | A kind of high-temperature resistant seal ring | |
| CN202325347U (en) | Two-stage integrated high-pressure self-sealing device | |
| CN215630149U (en) | Filling station uses waterproof well lid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |