CN203847050U - Shaft-penetrating sleeve sealing device - Google Patents
Shaft-penetrating sleeve sealing device Download PDFInfo
- Publication number
- CN203847050U CN203847050U CN201420100029.2U CN201420100029U CN203847050U CN 203847050 U CN203847050 U CN 203847050U CN 201420100029 U CN201420100029 U CN 201420100029U CN 203847050 U CN203847050 U CN 203847050U
- Authority
- CN
- China
- Prior art keywords
- stop
- sleeve
- sleeve pipe
- sealing device
- water
- 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
Links
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a shaft-penetrating sleeve sealing device. The shaft-penetrating sleeve sealing device comprises a first water stopper which is arranged at the upper end of a large sleeve on a superposition section of sleeves in different diameters, a small sleeve is connected to the lower end of the first water stopper, a second water stopper is connected to the bottom of the small sleeve, and an annular space between the small sleeve and the large sleeve is filled with cement paste. The shaft-penetrating sleeve sealing device is capable of reliably sealing a superposition position two sleeves different in diameters and durably effective.
Description
Technical field
The utility model relates to a kind of sleeve pipe and wears sleeve sealing device, for the connection sealing between pump chamber section sleeve pipe, protective casing and the production casing of geothermal well.
Background technology
At present, the connection between pump chamber section sleeve pipe, protective casing and the production casing of geothermal well seals many sleeve pipes that can relate to different-diameter, and it need to require sealing tight, and still, prior art all cannot facilitate, economic, solution reliably.
Utility model content
The purpose of this utility model is to provide a kind of sleeve pipe to wear sleeve sealing device.
It is as follows that the utility model solves the problems of the technologies described above taked technical scheme:
A kind of sleeve pipe is worn sleeve sealing device, comprise: the first water-stop of being located at the large sleeve pipe upper end of different-diameter sleeve pipe superposition section, the lower end of described water-stop connects small casing, and the bottom of small casing is connected with the second water-stop, and the annular gap between small casing and large sleeve pipe is filled with cement paste.
Further, preferably, the top of described the first water-stop connects a horn mouth.
Further, preferably, it is long that the small casing between two water-stops arranges 10-25m, and small casing arranges one or two.
Further, preferably, described water-stop is chosen Conjuncted umbrella type water-stop.
Further, preferably, described water-stop is made by elastomeric material.
After the utility model has been taked such scheme, can make the junction sealing of two kinds of different-diameter sleeve pipes reliable, effective lastingly.
Other features and advantages of the utility model will be set forth in the following description, and, partly from manual, become apparent, or understand by implementing the utility model.The purpose of this utility model and other advantages can be realized and be obtained by specifically noted structure in the manual write, claims and accompanying drawing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in detail, so that above-mentioned advantage of the present utility model is clearer and more definite.
Fig. 1 is that the utility model sleeve pipe is worn sleeve sealing device;
Fig. 2 is the structural representation that the utility model sleeve pipe is worn Conjuncted umbrella type water-stop in sleeve sealing device.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.
As shown in Figure 1, what the utility model was taked is to wear sleeve sealing device, for connecting different-diameter sleeve pipe.In general, when the sleeve pipe of existing different-diameter is connected in well, the sleeve pipe coincidence certain length (30-50m) of two kinds of specifications, for this reason, the utility model sealing device, mainly realizes its sealing.
Specifically, it comprises: be located at the water-stop 3 of large sleeve pipe 1 upper end, referred to here as the first water-stop.The lower end of described water-stop connects small casing, and the bottom of small casing is connected with water-stop 3, referred to here as the second water-stop.And the annular gap between small casing and large sleeve pipe is filled with cement paste 4, and cement paste 4 is generally taked oil well cement.
Further, preferably, the top of described the first water-stop connects a horn mouth 2.
Further, preferably, it is long that the small casing between two water-stops arranges 10-25m, and small casing arranges one or two, and small casing arranges one or two.
Further, preferably, described water-stop is chosen Conjuncted umbrella type water-stop, and as shown in Figure 2, it comprises: the rubber ring of a plurality of inverse-umbrella type shapes, and these rubber rings are integrally connected successively, its good sealing effect.
That is to say, by above-mentioned design, in the sleeve pipe superposition section of two kinds of specifications, use the junction of Conjuncted umbrella type water-stop and two kinds of different-diameter sleeve pipes of cement seal, and, Conjuncted umbrella type water-stop is generally elastomeric material, thus, utilizes top-quality rubber and the sealing of cement double effects of Conjuncted umbrella type water-stop, make the junction sealing of two kinds of different-diameter sleeve pipes reliable, effective lastingly.
Concrete operation step is as follows: 1. according to order from top to bottom, arrange small casing erection sequence, calculate, design small casing fitting depth and wear sleeve Hermetical connecting structure fitting depth and (after requiring small casing to be in place, wear sleeve syndeton all in large sleeve pipe, and require to wear water-stop bottom under sleeve syndeton and exceed at least 5 meters of large sleeve bottoms, large and small sleeve pipe superposition section length is between 30m-50m);
2. when small casing is installed to projected depth, start to install and wear sleeve syndeton by order from top to bottom, first connect a Conjuncted umbrella type water-stop;
3. connect again one to two small casing (long 10m-25m);
4. transfer after small casing makes first water-stop all enter large sleeve pipe and start to the annular gap cement ejecting between large sleeve pipe and small casing, small casing limit cement ejecting (cement paste is thick, does not substantially have mobility, and shape is as paste) is transferred on limit;
5. connect second Conjuncted umbrella type water-stop (between two Conjuncted umbrella type water-stops, distance is also all filled with cement paste between 10m-25m);
6. connect horn mouth.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a sleeve pipe is worn sleeve sealing device, it is characterized in that, comprise: the first water-stop of being located at the large sleeve pipe upper end of different-diameter sleeve pipe superposition section, the lower end of described water-stop connects small casing, and the bottom of small casing is connected with the second water-stop, and the annular gap between small casing and large sleeve pipe is filled with cement paste.
2. sleeve pipe according to claim 1 is worn sleeve sealing device, it is characterized in that, the top of described the first water-stop connects a horn mouth.
3. sleeve pipe according to claim 1 and 2 is worn sleeve sealing device, it is characterized in that, it is long that the small casing between two water-stops arranges 10-25m, and small casing arranges one or two.
4. sleeve pipe according to claim 1 and 2 is worn sleeve sealing device, it is characterized in that, described water-stop is chosen Conjuncted umbrella type water-stop.
5. sleeve pipe according to claim 1 and 2 is worn sleeve sealing device, it is characterized in that, described water-stop is made by elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100029.2U CN203847050U (en) | 2014-03-06 | 2014-03-06 | Shaft-penetrating sleeve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100029.2U CN203847050U (en) | 2014-03-06 | 2014-03-06 | Shaft-penetrating sleeve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847050U true CN203847050U (en) | 2014-09-24 |
Family
ID=51560084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100029.2U Expired - Fee Related CN203847050U (en) | 2014-03-06 | 2014-03-06 | Shaft-penetrating sleeve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727377A (en) * | 2021-01-08 | 2021-04-30 | 西安交通大学 | Sandstone heat storage three-throw geothermal well body structure and construction method |
-
2014
- 2014-03-06 CN CN201420100029.2U patent/CN203847050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727377A (en) * | 2021-01-08 | 2021-04-30 | 西安交通大学 | Sandstone heat storage three-throw geothermal well body structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203847050U (en) | Shaft-penetrating sleeve sealing device | |
| CN205012957U (en) | Sealed hanger | |
| CN203585619U (en) | One-way sleeve type telescopic device | |
| CN201818276U (en) | Rubber stopper packer | |
| CN203515571U (en) | An improved high temperature and high pressure sand filling pipe experimental device | |
| CN203822278U (en) | Casing patch well separated layer water injection device | |
| CN203685106U (en) | Hydraulic control protector | |
| CN204267973U (en) | The resistance to tamponade of pipeline | |
| CN203716925U (en) | Floating section hoop | |
| CN205063888U (en) | Sleeve pipe suspension connection sealing device | |
| CN204213373U (en) | A kind of no-arbitrary pricing inside screw non-rising stem type gate valve | |
| CN105757383A (en) | Pipe connecting device easy to assemble and disassemble | |
| CN205243429U (en) | Edge natural gas well well head protection and mining devices | |
| CN204113188U (en) | A low temperature resistant tubing hanger | |
| CN205745846U (en) | A kind of seal plug for detection | |
| CN204254077U (en) | Movable telescopic saves | |
| CN204283318U (en) | High temperature high voltage resistant tubing packer | |
| CN204532215U (en) | Extension hanger combined bidirectional inner sealing device | |
| CN203691818U (en) | Wire out through hole waterproof structure | |
| CN203099125U (en) | Telescopic structure for mine pasty fluid filling pipeline | |
| CN204252918U (en) | A kind of wellhead for production | |
| CN201802339U (en) | Horizontal Well Steam Injection Wellhead Sealing Device | |
| CN205975801U (en) | A sealed ware for water supply pipe well | |
| CN203796217U (en) | Compression packer for well cementation | |
| CN204457534U (en) | Eccentric oil pipe hanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |