CN2926497Y - Coupling injector of gas driving well - Google Patents
Coupling injector of gas driving well Download PDFInfo
- Publication number
- CN2926497Y CN2926497Y CN 200520126741 CN200520126741U CN2926497Y CN 2926497 Y CN2926497 Y CN 2926497Y CN 200520126741 CN200520126741 CN 200520126741 CN 200520126741 U CN200520126741 U CN 200520126741U CN 2926497 Y CN2926497 Y CN 2926497Y
- Authority
- CN
- China
- Prior art keywords
- giving
- seat
- gas
- plug
- packer
- 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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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model disclosing a releasing sub gas-flooding device for a gas-drive well comprises a working barrel, a packer, a ball constant pressure valve, a sieve tube, a screwed plug, a seal plug which connects the lower end of the working barrel and the top end of the packer in turn, a releasing sub tieback drum and a dish valve controller. The lower end of the packer is connected with the ball constant pressure valve, the sieve tube and the screwed plug successively. The utility model which is applied in the art of oil-mining and gas-flooding has the function that the oil tube is closed or communicated according to need with convenient operation and high reliability and safety.
Description
One, technical field
The utility model relates to the oil exploitation down-hole string, particularly a kind of gas drive well gas injection device of giving up.
Two, background technology
Existing oil exploitation gas injection tubing string is generally used conventional flow string or import tubing string, but all exists separately shortcoming or deficiency: 1. the import tubing string adopts permanent packer, can not take out, can only bore, so the application cost height; 2. domestic tubing string gas tightness is poor, and is withstand voltage low, has only 10-15Mpa; 3. domestic tubing string does not have the down-hole blowout hookup, needs kill-job during lift pipe string, and complex procedures and polluted reservoir as not kill-job well take place easily then and overflow or blowout, cause environment pollution and have potential safety hazard.
Three, summary of the invention
The purpose of this utility model provides a kind of gas drive well gas injection device of giving up, shortcoming or deficiency that it can overcome effectively or avoid existing in the above-mentioned prior art, solve closing and connectivity problem of oil pipe in case of necessity effectively, thereby guarantee the safety of gas injection well operation.
The gas drive well described in the utility model gas injection device of giving up, comprise seating nipple, packer, level pressure ball valve, screen casing and plug, also comprise sealing plug, give up tieback tube and dish valve control that described seating nipple lower end and packer upper end are connected in turn, described packer lower end is connected with level pressure ball valve, screen casing and plug in turn.
Wherein, described sealing plug comprise seal receptacle and on baffle ring, seal and the top connection of installing, the close plug in guide peg that the other end connects.Described dish valve control comprises the seal nipple that adapter sleeve and lower end thereof connect, the valve seat of installing in the upper end, " L " shape seal and top connection, the dish valve plate of installing on the valve seat and torsion spring pin and torsion spring.Described top connection and " L " shape seal lower end are toroidal, match with the dish valve plate, form the soft or hard double containment.The described tieback tube of giving up comprises the fishing head that lock dog seat, lock dog and ball seat that sealing drum and inner chamber thereof install are closely inserted, the lower end is connected, and lock dog seat and sealing drum are fixed by lock dog, and ball seat is close is slottingly located by control nail mutually with the lock dog seat.
The utility model has following advantage or beneficial effect compared with prior art:
1, design has the dish valve control, can close or be communicated with tubing string as required automatically;
2, flow chart is simple, and is easy to use, need not the well killing fluid kill-job, can prevent oil layer pollution, and full well casing post can trip out easily, need not to bore the miller preface;
3, gas injection well job safety, blowout prevention, anti-overflow, the pressure-bearing height can withstand voltage 30-50Mpa.
Four, description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is by sealing plug structural representation shown in Figure 1,
Fig. 3 is by the tieback barrel structure schematic diagram of giving up shown in Figure 1,
Fig. 4 is for pressing dish valve control structural representation shown in Figure 1.
Five, the specific embodiment
Consult Fig. 1-Fig. 3, a kind of gas drive well gas injection device of giving up, comprise seating nipple 1, packer 5, level pressure ball valve 6, screen casing 7 and plug 8, also comprise sealing plug 2, give up tieback tube 3 and dish valve control 4 that described seating nipple 1 lower end and packer 5 upper ends are connected in turn, packer 5 lower ends are connected with level pressure ball valve 6, screen casing 7 and plug 8 in turn.
Sealing plug 2 comprise seal receptacle 24 and on baffle ring 23, seal 22 and the top connection 21 of installing, the close plug in guide peg 25 that the other end connects.Dish valve control 4 comprises the seal nipple 410 that adapter sleeve 49 and lower end thereof connect, the valve seat of installing in the upper end 42, " L " shape seal 44 and top connection 41, dish valve plate of installing on the valve seat 42 46 and torsion spring pin 48 thereof and torsion spring 47.Top connection and " L " shape seal 44 lower ends are toroidal, match with dish valve plate 46, form the soft or hard double containment, are installed on sealing ring 43 and 45 on top connection 41, valve seat 42 and the seal nipple 410.The tieback tube 3 of giving up comprises that lock dog seat 31, lock dog 33 and ball seat that sealing drum 32 and inner chamber thereof install are close and inserts 35, the fishing head 36 that the lower end connects, and lock dog seat 31 is fixed by lock dog 33 with sealing drum 32, and ball seat is close to be inserted 35 and is located mutually by control nail 4 with lock dog seat 1.
Claims (5)
1, a kind of gas drive well gas injection device of giving up, comprise seating nipple, packer, level pressure ball valve, screen casing and plug, it is characterized in that also comprising sealing plug, give up tieback tube and the dish valve control that is connected in turn on described seating nipple lower end and the packer, described packer lower end is connected with level pressure ball valve, screen casing and plug in turn.
2, the gas drive well according to claim 1 gas injection device of giving up, it is characterized in that described sealing plug comprise seal receptacle and on baffle ring, seal and the top connection of installing, the close plug in guide peg that the other end connects.
3, the gas drive well according to claim 1 gas injection device of giving up, it is characterized in that described dish valve control comprises the seal nipple that adapter sleeve and lower end thereof connect, valve seat, " L " shape seal and the top connection of installing in the upper end, the dish valve plate of installing on the valve seat and torsion spring pin and torsion spring.
4, the gas drive well according to claim 3 gas injection device of giving up is characterized in that described top connection and " L " shape seal lower end are toroidal, matches with the dish valve plate, forms the soft or hard double containment.
5, the gas drive well according to claim 1 gas injection device of giving up, it is characterized in that the fishing head that lock dog seat, lock dog and ball seat that the described tieback tube of giving up comprises that sealing drum and inner chamber thereof install are closely inserted, the lower end is connected, lock dog seat and sealing drum are fixed by lock dog, and close the inserting of ball seat located by control nail mutually with the lock dog seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126741 CN2926497Y (en) | 2005-12-31 | 2005-12-31 | Coupling injector of gas driving well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126741 CN2926497Y (en) | 2005-12-31 | 2005-12-31 | Coupling injector of gas driving well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926497Y true CN2926497Y (en) | 2007-07-25 |
Family
ID=38280741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520126741 Expired - Fee Related CN2926497Y (en) | 2005-12-31 | 2005-12-31 | Coupling injector of gas driving well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926497Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536183A (en) * | 2012-01-31 | 2012-07-04 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
-
2005
- 2005-12-31 CN CN 200520126741 patent/CN2926497Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536183A (en) * | 2012-01-31 | 2012-07-04 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
| CN102536183B (en) * | 2012-01-31 | 2014-11-12 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
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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 |