CN200989184Y - Well packing device - Google Patents
Well packing device Download PDFInfo
- Publication number
- CN200989184Y CN200989184Y CNU2006201352583U CN200620135258U CN200989184Y CN 200989184 Y CN200989184 Y CN 200989184Y CN U2006201352583 U CNU2006201352583 U CN U2006201352583U CN 200620135258 U CN200620135258 U CN 200620135258U CN 200989184 Y CN200989184 Y CN 200989184Y
- Authority
- CN
- China
- Prior art keywords
- well
- sealing device
- joint
- inner sealing
- sealing
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Earth Drilling (AREA)
Abstract
The utility model discloses a sealing device in the well, which is arranged at the rupture of the well tube. The joint is welded at the head end of the tube; the joint is provided with a hanging mouth capable of screwing together with a drill rod; the space between the two seal assemblies that go through and are connected with the tube body is a rupture; the end of the tube body is provided with a U-shaped opening; the seal assembly is composed of a sealing ring and a rubber piece that is connected by compression between the sealing rings through a bolt; wherein, the outside diameter of the rubber piece is greater than that of the sealing ring; the rubber piece is tight fit with the well tube; therefore, the sealing device inside the well provides the well tube rupture with a tightness of sealing. The utility model is small in volume, low in cost, and easy to be replaced, convenient to be arranged and operated, wide in the field of application and applicable for a sealing and a water-tight seal in the deep well and geothermal well.
Description
Technical field:
The utility model relates to the mechanical seal field, particularly a kind of sealing device of underground well casing.
Background technology:
All geothermal deep wells of China and common water supply well well casing select to be metal material at present, mainly based on petroleum casing pipe and steel pipe, in use all there is the corrosion failure problem, geothermal well particularly, because problems such as water quality, its corrosion rate is very fast, the well casing splintering problem generally just appears in 2-5, the common type of breaking has: local corrosion, the position well casing wearing and tearing of perforation pump head, welding or screw thread place disconnect or misplace, no matter be that the well casing that any reason causes breaks, all can occur to shake out, to go out gravel material and groundwater pollution phenomenon in a large number.The appearance of this problem not only can not normally be used, and also can bring out the pollution of regional underground deep layer water and surface settlement, nearby buildings dipping fracture when serious.When occurring well casing in the past and breaking, mostly the measure of taking is that employing is lowered to little one-level and mends pipe, isolate therebetween with cement placement then and seal, though this method is effective, but maintenance cost is very expensive, and when the bottom well casing goes wrong once more and keeps in repair, because it is little to mend the diameter of pipe, cause bottom problem well casing normally not keep in repair or well-flushing, thereby cause well to scrap and the pollution of underground deep layer water resource.
Summary of the invention:
Technical problem to be solved in the utility model provides a kind of well inner sealing device in order to solve underground well casing corrosion failure problem exactly, and this device volume is little, and cost is low, not only be convenient to change, and easy to install and use, applied range.
The technical solution adopted in the utility model is:
A kind of well inner sealing device is arranged on the rent of well casing, is made of body, joint and at least one black box, and the head end of body is connected with joint, has mouth hanging on the joint; The tail end of body has horseshoe mouth; Cross-under has black box on the body, has rubber parts in the black box.
Described body and joint be connected to welding.
Cross-under has 2-4 black box on the described body.
Described black box is made of joint ring and rubber parts, and rubber parts is crimped between the joint ring.
Described rubber parts is crimped between the joint ring by bolt.
The external diameter of described rubber parts is greater than the joint ring external diameter.
Described rubber parts and well casing interference fit.
Described rubber parts is an expanded rubber spare.
The utility model can be used for the sealing and the sealing of deep-well and geothermal well, have characteristics such as manufacturing cost and use cost is low, replacing convenience, applied range, repairable rate to 200 old wells reaches 100%, result of use is more remarkable in the 2760m geothermal well of Zhengzhou, and only this item is saved 300,000 yuan than traditional water-stopping method.When rent bottom well casing needs repairing, can put forward the sealing device earlier, treat that bottom maintenance or well-flushing finish after, again the sealing device is lowered to original position and gets final product.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model user mode schematic diagram.
The specific embodiment:
The utility model will be further described below in conjunction with accompanying drawing:
As Fig. 1, shown in Figure 2, this well inner sealing device, joint 10 is welded on the head end of body 30, have on the joint 10 can with the mouth hanging 11 that spins with drilling rod, two cross-under are the rent 41 of well casing 40 between the black box on the body 30 20, the tail end of body 30 has horseshoe mouth 31, black box 20 is made of joint ring 21 and the expanded rubber spare 23 that is crimped between the joint ring 21 by bolt 22, wherein the external diameter of expanded rubber spare 23 is greater than joint ring 21 external diameters, expanded rubber spare 23 is an interference fit with well casing 40, makes this well inner sealing device seal in well casing 40 tightly like this.
At first utilize instrument accurately to determine rupture location and well casing diameter before the repairing.Then drilling rod and well inner sealing device are spun, it is sent into well casing 40 implosions place 41, when treating expanded rubber spare 23 and well casing 40 inwall asphyxias by external pressure on the chest and abdomen, again drilling rod is withdrawed from outside the well casing, can following pump carry out well-flushing this moment and draw water, and play isolation and sealing function.
Need to prove: the black box 20 in this well inner sealing device can for 1, two or more, when rent 41 is positioned at the bottom work head end of well casing 40, only need 1 black box 20 can reach sealing effectiveness, when rent 41 is many places, and when distribution distance was relatively far away, black box 20 can be for a plurality of.
Claims (8)
1, a kind of well inner sealing device, be arranged on the rent of well casing (40), it is characterized in that: be made of body (30), joint (10) and at least one black box (20), the head end of body (30) is connected with joint (10), has mouth hanging (11) on the joint (10); The tail end of body (30) has horseshoe mouth (31); Body (30) is gone up cross-under black box (20), has rubber parts (20) in the black box (20).
2, well inner sealing device as claimed in claim 1 is characterized in that: body (30) and joint (10) be connected to welding.
3, well inner sealing device as claimed in claim 1 or 2 is characterized in that: body (30) is gone up cross-under 2-4 black box (20).
4, well inner sealing device as claimed in claim 3 is characterized in that: black box (20) is made of joint ring (21) and rubber parts (23), and rubber parts (23) is crimped between the joint ring (21).
5, well inner sealing device as claimed in claim 4 is characterized in that: rubber parts (23) is crimped between the joint ring (21) by bolt (22).
6, well inner sealing device as claimed in claim 4 is characterized in that: the external diameter of rubber parts (23) is greater than joint ring (21) external diameter.
7, as claim 1,2,4,5 or 6 described well inner sealing devices, it is characterized in that: rubber parts (23) and well casing (40) interference fit.
8, well inner sealing device as claimed in claim 7 is characterized in that: rubber parts (20) is an expanded rubber spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201352583U CN200989184Y (en) | 2006-12-30 | 2006-12-30 | Well packing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201352583U CN200989184Y (en) | 2006-12-30 | 2006-12-30 | Well packing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200989184Y true CN200989184Y (en) | 2007-12-12 |
Family
ID=38940221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201352583U Expired - Fee Related CN200989184Y (en) | 2006-12-30 | 2006-12-30 | Well packing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200989184Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643916A (en) * | 2013-12-04 | 2014-03-19 | 孟克吉日嘎拉 | Exploratory-hole layered pumping test sealing water stop device |
| CN105064942A (en) * | 2015-08-25 | 2015-11-18 | 元玉石 | Airbag well repairing tool |
| CN105352210A (en) * | 2015-11-11 | 2016-02-24 | 河南润恒节能技术开发有限公司 | Shallow geothermal energy device with pumping and recharging in same well |
| CN106368638A (en) * | 2015-07-23 | 2017-02-01 | 中国石油天然气股份有限公司 | Sleeve damaged position blocking tool and blocking method |
| CN115341870A (en) * | 2022-08-24 | 2022-11-15 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | High-temperature steam upward-spraying prevention device for well washing and tripping of high-temperature geothermal well |
-
2006
- 2006-12-30 CN CNU2006201352583U patent/CN200989184Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643916A (en) * | 2013-12-04 | 2014-03-19 | 孟克吉日嘎拉 | Exploratory-hole layered pumping test sealing water stop device |
| CN103643916B (en) * | 2013-12-04 | 2016-01-13 | 孟克吉日嘎拉 | Exploratory hole layering pumping test packing antipriming |
| CN106368638A (en) * | 2015-07-23 | 2017-02-01 | 中国石油天然气股份有限公司 | Sleeve damaged position blocking tool and blocking method |
| CN106368638B (en) * | 2015-07-23 | 2019-04-09 | 中国石油天然气股份有限公司 | Casing damage capping tools and method for blocking |
| CN105064942A (en) * | 2015-08-25 | 2015-11-18 | 元玉石 | Airbag well repairing tool |
| CN105064942B (en) * | 2015-08-25 | 2018-02-23 | 元玉石 | A kind of air bag mends well instrument |
| CN105352210A (en) * | 2015-11-11 | 2016-02-24 | 河南润恒节能技术开发有限公司 | Shallow geothermal energy device with pumping and recharging in same well |
| CN115341870A (en) * | 2022-08-24 | 2022-11-15 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | High-temperature steam upward-spraying prevention device for well washing and tripping of high-temperature geothermal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |