CN201902195U - Underground intelligent switch - Google Patents
Underground intelligent switch Download PDFInfo
- Publication number
- CN201902195U CN201902195U CN2010206391044U CN201020639104U CN201902195U CN 201902195 U CN201902195 U CN 201902195U CN 2010206391044 U CN2010206391044 U CN 2010206391044U CN 201020639104 U CN201020639104 U CN 201020639104U CN 201902195 U CN201902195 U CN 201902195U
- Authority
- CN
- China
- Prior art keywords
- upper piston
- intelligent switch
- piston tube
- sealing ring
- switch
- 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 an underground intelligent switch, which comprises an upper piston barrel (1). A piston (2) is arranged in the upper piston barrel (1), and a group of guide grooves (3) is arranged at the end of the upper piston barrel (1). The eight guide grooves distributed circumferentially and evenly are arranged at the end of the upper piston barrel, when the piston is moved out of the upper piston barrel, about 5MP differential pressure on two sides of the switch is balanced by the guide grooves (3) firstly, and then a sealing ring on the piston cannot be damaged by impact as the sealing ring remains in the upper piston barrel and is restrained by the upper piston barrel during pressure balancing. The underground intelligent switch with simple structure is capable of effectively solving the problem that a sealing ring in the prior art is frequently damaged by impact.
Description
Technical field
The utility model relates to a kind of downhole intelligent switch, belongs to the downhole tool field.
Background technology
The oil field generally enters high water-cut stage after development late stage.General oil well adopts multilayer generally to close excavating technology more, so oilfield technology developing department can't accurately obtain the detail parameters (as strata pressure, production fluid amount, moisture content, temperature etc.) on a certain stratum, can not take effective technological measure at the situation on each stratum.The essence of intelligence water detector is exactly to cooperate by special process pipe string and tester, formation testing pressure and the variation of producing the stream pressure, and the variation of combined ground detection moisture content find main product layer and high aquifer, thereby technologies such as shutoff are taked in high aquifer, improved oil recovering efficient.
Mechanical switch is wherein most important executing agency in the intelligence water detector, and the operating principle of mechanical switch is a reciprocating-piston, promptly comes the opening and closing of gauge tap by the reciprocating motion of piston.Existing instrument, in the process of switch opens, because there is the pressure reduction about 5M P the switch both sides, when causing piston to move out from the upper piston tube, two piston packings are washed out even destroy by pressure successively under the effect of pressure reduction.
The utility model content
The purpose of this utility model is, a kind of downhole intelligent switch is provided, and guaranteeing has under the situation of 5MP left and right sides pressure reduction in the switch both sides, and the moment of switch opens is a piston when the upper piston tube moves right, and the sealing ring on the piston is not washed out or destroys by pressure.
The technical solution of the utility model: a kind of downhole intelligent switch, comprise the upper piston tube, be provided with piston in the upper piston tube; The end of upper piston tube is provided with one group of guide groove.
In the aforementioned downhole intelligent switch, described one group of guide groove comprises 8 guide grooves, and 8 guide grooves are uniformly distributed along the circumference.
In the aforementioned downhole intelligent switch, described upper piston tube cylindrical is provided with the two seals groove, and the degree of depth of guide groove is concordant near the inner edge of first road sealing groove of end with the two seals groove, and the width of guide groove is 0.4～0.6mm.
In the aforementioned downhole intelligent switch, described piston is provided with sealing ring between the upper piston tube.
Compared with prior art, the utility model has eight guide grooves that are uniformly distributed along the circumference in upper piston tube end, when piston comes out from the upper piston tube, pressure reduction about the 5MP of switch both sides obtains balance by guide groove 3 earlier, in pressure balanced process, because the sealing ring on the piston also in the upper piston tube, is subjected to the constraint of upper piston tube, can not washed out by pressure.The utility model is simple in structure, can well solve the defective that the prior art sealing ring is often washed out.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the prior art constructions schematic diagram;
Fig. 3 is the structural representation of upper piston tube.
Being labeled as in the accompanying drawing: 1-upper piston tube, 2-piston, 3-guide groove, 4-seal groove, 5-sealing ring, 6-shell.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as to any restriction of the present utility model.
Embodiment.Existing instrument, in the process of switch opens, Fig. 2 is that mechanical switch is the schematic diagram of most important executing agency wherein in the prior art intelligence water detector, and the operating principle of mechanical switch is a reciprocating-piston, promptly comes the opening and closing of gauge tap by the reciprocating motion of piston 2.The direction that the moves when arrow among the figure represents that piston 2 is opened, when piston 2 shifts out from upper piston tube 1 in the direction of arrows, as seen from the figure because there is the pressure reduction about 5M P the switch both sides, when causing piston 2 to move out from upper piston tube 1, two sealing rings on the effect lower piston 2 of pressure reduction are washed out even destroy by pressure successively.
The utility model as shown in Figure 1.A kind of downhole intelligent switch comprises upper piston tube 1, is provided with piston 2 in the upper piston tube 1; Upper piston tube 1 as shown in Figure 3, the end of upper piston tube 1 is provided with one group of guide groove 3.Described one group of guide groove 3 comprises that 3,8 guide grooves 3 of 8 guide grooves are uniformly distributed along the circumference.Described upper piston tube 1 cylindrical is provided with double density sealing groove 4, and the degree of depth of guide groove 3 is concordant near the inner edge of first road sealing groove of end with double density sealing groove 4, and the width of guide groove 3 is 0.4～0.6mm.Be provided with single sealing ring 5 between described piston 2 and the upper piston tube 1.
The utility model course of work and principle
Mechanical switch of the present utility model comprises shell 6, is provided with upper piston tube 1 and piston 2 in the shell 6; The utility model changes two sealing rings 5 on the piston 2 into one, as shown in Figure 3, have eight guide grooves that are uniformly distributed along the circumference 3 in upper piston tube 1 end, when piston 2 comes out from upper piston tube 1, pressure reduction about the 5MP of switch both sides obtains balance by guide groove 3 earlier, in pressure balanced process, because the sealing ring 5 on the piston 2 is also in upper piston tube 1, be subjected to the constraint of upper piston tube 1, can not washed out by pressure.The utility model is simple in structure, can well solve the defective that prior art sealing ring 5 is often washed out.
Claims (4)
1. a downhole intelligent switch comprises upper piston tube (1), is provided with piston (2) in the upper piston tube (1); It is characterized in that: the end of upper piston tube (1) is provided with one group of guide groove (3).
2. according to the described downhole intelligent switch of claim 1, it is characterized in that: described one group of guide groove (3) comprises 8 guide grooves (3), and 8 guide grooves (3) are uniformly distributed along the circumference.
3. according to the described downhole intelligent switch of claim 1, it is characterized in that: described upper piston tube (1) cylindrical is provided with two seals groove (4), the degree of depth of guide groove (3) is concordant near the inner edge of first road sealing groove of end with two seals groove (4), and the width of guide groove (3) is 0.4～0.6mm.
4. according to the described downhole intelligent switch of claim 1, it is characterized in that: described piston (2) is provided with sealing ring (5) between upper piston tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206391044U CN201902195U (en) | 2010-12-03 | 2010-12-03 | Underground intelligent switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206391044U CN201902195U (en) | 2010-12-03 | 2010-12-03 | Underground intelligent switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902195U true CN201902195U (en) | 2011-07-20 |
Family
ID=44272795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206391044U Expired - Fee Related CN201902195U (en) | 2010-12-03 | 2010-12-03 | Underground intelligent switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562050A (en) * | 2011-12-16 | 2012-07-11 | 贵州航天凯山石油仪器有限公司 | Method for reducing pressure of switch piston of intelligent water exploration instrument and mechanical switch of intelligent water exploration instrument |
-
2010
- 2010-12-03 CN CN2010206391044U patent/CN201902195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562050A (en) * | 2011-12-16 | 2012-07-11 | 贵州航天凯山石油仪器有限公司 | Method for reducing pressure of switch piston of intelligent water exploration instrument and mechanical switch of intelligent water exploration instrument |
| CN102562050B (en) * | 2011-12-16 | 2015-09-30 | 贵州航天凯山石油仪器有限公司 | Reduce the method for intelligent water detector switch plunger pressure and intelligent water detector mechanical switch |
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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 |
Granted publication date: 20110720 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |