CN205955711U - A screen pipe for geothermal well producing horizon - Google Patents
A screen pipe for geothermal well producing horizon Download PDFInfo
- Publication number
- CN205955711U CN205955711U CN201620994515.2U CN201620994515U CN205955711U CN 205955711 U CN205955711 U CN 205955711U CN 201620994515 U CN201620994515 U CN 201620994515U CN 205955711 U CN205955711 U CN 205955711U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- base
- main pipe
- geothermal well
- screen
- 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
The utility model discloses a screen pipe for geothermal well producing horizon, person in charge's body outlying filter screen is located to person in charge's body and cover including being equipped with the hole that leaks, it is equipped with a plurality of support bars to be responsible for between the body and the filter screen, the support bar is used for supporting the filter screen and makes the filter screen and be responsible for a formation wall between the external wall, the upper end of being responsible for the body and filter screen is equipped with a connector that is used for the jointed rod, the bottom of being responsible for the body is equipped with a base, and the edge of base is equipped with a plurality of stationary dogs, the stationary dog is V -arrangement and pin joint in base edge. The utility model discloses a double -deck filtration, the filter effect is good, is equipped with duct main body in the filter screen, and overall structure intensity is high, the bottom sets up the stationary dog, can improve the installation stability of screen pipe, can not produce the displacement.
Description
Technical field
This utility model is related to geothermal energy resources production technique apparatus field, produces layer particularly to a kind of for geothermal well
Screen casing.
Background technology
Geothermal energy is the natural heat energy being extracted by the earth's crust, and this energy is derived from the lava of earth interior, and with heating power form
Exist.Geothermal energy is a kind of new clear energy sources, day by day strengthens the feelings increasingly in short supply with the energy in the environmental consciousness of current people
Under condition, the rational exploitation and utilization of geothermal energy resources is more and more favored by people.Geothermal well completion side is sent out generally bore hole
Method, bushing pipe (screen casing and filter pipe) and perforation method.Bushing pipe method is usually that a screen casing is placed in the production layer of underground heat bottom, this
Require screen casing have higher intensity, filter capacity and install after stability, current screen casing is generally only by one
Layer stainless steel filter screen composition, the stability after intensity and installation does not all reach requirement.
Utility model content
This utility model is in order to make up the deficiencies in the prior art, there is provided a kind of intensity is high, filter capacity is strong, it is stable to install
For geothermal well produce layer screen casing.
For achieving the above object, this utility model adopts following technical proposals：A kind of screen casing producing layer for geothermal well,
Including the main pipe being provided with leaking hole and the filter screen being sheathed on main pipe's periphery, if being provided with the Heavenly Stems and Earthly Branches between described main pipe and filter screen
Stay, described support bar is used for supporting filter screen and making to be formed a wall between filter screen and main pipe's outer wall, described main pipe and
The upper end of filter screen is provided with a union joint being used for jointed rod, and the bottom of described main pipe is provided with a base, and the edge of base sets
There are some fixed claws, described fixed claw is V-arrangement and is pinned at base edge.
First side being located at base on the bottom surface of base of two pawls of described fixed claw, two pawl heads
Corner dimension scope is 90 ° -180 °.
Described leaking hole is tubaeform and big mouth towards inside main pipe.
During use, with drilling rod, screen casing is sent into underground heat bottom, when the base contacts underground heat bottom of screen casing, fixed claw
Pawl head positioned at base bottom is pushed, and the pawl head that fixed claw is located at base side rotates to chassis outer side and is stuck in geothermal well
On the borehole wall.
The beneficial effects of the utility model are：This utility model adopts double medium filtration, good filtration effect, is provided with filter screen
Pipe main body, overall construction intensity is high；Bottom arranges fixed claw, can improve the mounting stability of screen casing, will not produce displacement.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the matching chart of filter screen and main pipe.
Wherein 1, main pipe, 2, filter screen, 3, support bar, 4, union joint, 5, base, 6, fixed claw, 7, filter screen circle.
Specific embodiment
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before not paying creative labor
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of screen casing producing layer for geothermal well as depicted in figs. 1 and 2, including main pipe 1 He being provided with leaking hole
It is sheathed on the filter screen 2 of main pipe 1 periphery, between described main pipe 1 and filter screen 2, is provided with some support bars 3, described support bar 3 is used
In supporting filter screen 2 and making to be formed a wall between filter screen 2 and main pipe 1 outer wall, the upper end of described main pipe 1 and filter screen 2 sets
Have one for jointed rod union joint 4, the bottom of described main pipe 1 is provided with a base 5, if the edge of base 5 be provided with solid
Determine pawl 6, described fixed claw 6 is V-arrangement and is pinned at base 5 edge.
Two pawls of described fixed claw 6 first side being located at base, two pawl heads on the bottom surface of base
Corner dimension scope be 90 ° -180 °.
Described leaking hole is tubaeform and big mouth towards inside main pipe 1.
Described filter screen 2 includes the filter screen circles 7 of some fixing annulars with support bar 3, upper and lower two adjacent filter screen circles it
Between form the little water inlet of outer imperial palace.
During use, with drilling rod, screen casing is sent into underground heat bottom, when the base 5 contact geothermal well bottom of screen casing, fixing
The pawl head that pawl 6 is located at base 5 bottom is pushed, and the pawl head that fixed claw 6 is located at base 5 side rotates to outside base 5 and is stuck in
On the borehole wall of geothermal well.
Although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model, not new to this practicality
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel do not need to pay the various modifications that creative work can make or deformation still in protection model of the present utility model
Within enclosing.
Claims (3)
1. a kind of for geothermal well produce layer screen casing it is characterised in that：Including being provided with the main pipe of leaking hole and be sheathed on master
The filter screen of body periphery, is provided with some support bars, described support bar is used for supporting filter screen and making between described main pipe and filter screen
Form a wall, the upper end of described main pipe and filter screen is provided with a company being used for jointed rod between filter screen and main pipe's outer wall
Joint, the bottom of described main pipe is provided with a base, and the edge of base is provided with some fixed claws, and described fixed claw is V-arrangement and pin
It is connected to base edge.
2. be used for as claimed in claim 1 geothermal well produce layer screen casing it is characterised in that：Two pawl heads of described fixed claw
One side being located at base on the bottom surface of base, the corner dimension scope of two pawl heads is 90 ° -180 °.
3. be used for as claimed in claim 1 geothermal well produce layer screen casing it is characterised in that：Described leaking hole be tubaeform and
Big mouth is towards inside main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620994515.2U CN205955711U (en) | 2016-08-30 | 2016-08-30 | A screen pipe for geothermal well producing horizon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620994515.2U CN205955711U (en) | 2016-08-30 | 2016-08-30 | A screen pipe for geothermal well producing horizon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205955711U true CN205955711U (en) | 2017-02-15 |
Family
ID=57978517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620994515.2U Expired - Fee Related CN205955711U (en) | 2016-08-30 | 2016-08-30 | A screen pipe for geothermal well producing horizon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205955711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661567A (en) * | 2018-05-04 | 2018-10-16 | 张辰生 | A kind of efficient combined-type geothermal well well casing structure |
-
2016
- 2016-08-30 CN CN201620994515.2U patent/CN205955711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661567A (en) * | 2018-05-04 | 2018-10-16 | 张辰生 | A kind of efficient combined-type geothermal well well casing structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170830 |