CN2223778Y - Pressure remote control device being able to repeatedly switch - Google Patents
Pressure remote control device being able to repeatedly switch Download PDFInfo
- Publication number
- CN2223778Y CN2223778Y CN 95220580 CN95220580U CN2223778Y CN 2223778 Y CN2223778 Y CN 2223778Y CN 95220580 CN95220580 CN 95220580 CN 95220580 U CN95220580 U CN 95220580U CN 2223778 Y CN2223778 Y CN 2223778Y
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- China
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- guide
- positioning sleeve
- control device
- remote control
- utility
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Abstract
The utility model relates to the technical field of oil extraction, belonging to a pressure remote control device being able to a repeated switch for a production well, which is composed of an upper joint, a body, a middle joint, a casing, etc. The inside of the casing is provided with a large spring, and the body is provided with a positioning sleeve, ball seats, balls, and the pins of guide rails. The sliding valve is driven via wellhead pressure, and the sliding valve is positioned on different positions via the pin of guide rail and multistage track grooves on the positioning sleeve for completing the opening and closing of the device. The utility model has the advantages of unique structure and flexible operation and can be used for the lamination test and the repeated adjustment for the segment of a manufacturing layer under the regular production condition without rising a pump. The utility model can be used for blocking high yield water layer and the lamination test.
Description
The utility model relates to the oil recovery technique field, but belongs to a kind of control device of producing well pressure remote control repeat switch.
At present, switching device in the producing well separate-layer production string, when needs carry out switch, adopt is lowered to special tool by ground and carries out the breakdown of switching device or close more, complex process, particularly be lowered to the major diameter plunger displacement pump for some, the well of electric submersible pump does not also play at present pump and just can finish the pay interval breakdown or the control device of closing repeatedly.
The purpose of this utility model is to overcome the deficiency of above-mentioned known technology, thereby but provides a kind of control device of pressure remote control repeat switch of uniqueness.
The purpose of this utility model is realized by following mode: structure is seen Fig. 1: the utility model is made up of top connection 1, main body 3, center tap 20 and shell 22, is threaded successively.Adjusted cap 2 is connected with rise pole 4 and positioning sleeve 8 by screw thread, guide pins 9 is connected with main body 3 by screw thread, and embed in the guide-track groove of positioning sleeve 8 external surfaces, positioning sleeve 8 is connected with ball seat 13 by spacer pin 12, guiding valve 15 is threaded with guiding valve stifled 18, ball 11 contacts with ball seat 13 under the effect of the little spring 7 and the cover 10 of blocking, form one way valve, big spring cover 21 is threaded with main body 3, under regulate cap 24 and be connected by screw thread and lower dolly bar 25 and big spring cover 21, hole 26 on the main body is the passage in the FIH access to plant, it is borehole fluid pressure that hole 27 makes the fluid pressure in the annular space 28, the circular area that the circular area that sealing ring 14 is surrounded is surrounded greater than sealing ring 16, so ball seat 13 is subjected to a downward pressure when the device internal hydraulic pressure is P, under this power effect, make ball seat 13 promote sliding sleeves 15 and drive positioning sleeves 8 by spacer pin 12 simultaneously and move down and compress big spring.
The utility model compared with prior art has following advantage: adopts different grave power values to finish the breakdown of each control device on the ground or close, and can repeat repeatedly breakdown or close, and novel structure, easy to operate.
Below by separate-layer production string Fig. 2, the process that the multistage guide-track groove expanded view 3,4,5 of positioning sleeve 8 and table 1 further specify a circulation.
Flow string is separated into three intervals by conventional packer with oil reservoir, but control device I, II, the III of the corresponding pressure remote control repeat switch of each interval, the multistage guide-track groove difference of three control device on positioning sleeve 8 external surfaces, remaining part is all identical, and can adjust the precompression of big spring to guiding valve by lower dolly bar 25.
When well head applies hydraulic pressure P1, positioning sleeve in three devices is all followed ball seat by spacer pin and is moved down into H1, and all enter 2 grades of guide-track grooves by a point of 1 grade of guide-track groove, when removing well head pressure P1, under the effect of big spring elastic force, make on the positioning sleeve and move by guiding valve, ball seat, the guide pins among the device I is got back to 1 grade of a point in the guide-track groove along 2 grades of guide-track grooves, the displacement of guiding valve is zero, and guiding valve should be in closed condition.The device II, III, in guide pins be positioned 2 grades of b points on the guide-track groove, open in hole 26, the device II, III just be in the breakdown state.
When well head applies hydraulic pressure P2, positioning sleeve in three devices is all by spacer pin and follow ball seat and move down into H2, the guide pins of device among the I enters 3 grades of guide-track grooves along 1 grade of guide-track groove after through 2 grades of guide-track grooves, device II, guide pins among the III enters 3 grades of guide-track grooves by 2 grades of guide-track grooves, when removing well head pressure P2, under the effect of big spring elastic force, pass through guiding valve, ball seat makes on the positioning sleeve and moves, device I, guide pins among the III is positioned 3 grades of b on the guide-track groove respectively, the c point, hole 26 device for opening I, III just is in the breakdown state, guide pins among the device II is got back to 1 grade of a point in the guide-track groove along 3 grades of guide-track grooves, spool displacement is zero, and device II is in closed condition.
When import applies hydraulic pressure P3, positioning sleeve in three devices all moves down into H3 by spacer pin is amusing with ball seat, guide pins among the device I enters 4 grades of guide-track grooves along 3 grades of guide-track grooves, guide pins among the device II is through reaching 1,2, go into 4 grades of guide-track grooves during 3 grades of guide-track grooves, guide pins among the device III enters 4 grades of guide-track grooves along 3 grades of guide-track grooves, when removing well head pressure P3, under the effect of big spring elastic force, pass through guiding valve, ball seat makes on the positioning sleeve and moves, device I, guide pins among the II is positioned 4 grades of c points on the guide-track groove, open in hole 26, device I, II just is in the breakdown state, guide pins among the device III is got back to 1 grade of a point in the guide-track groove along 4 grades of guide-track grooves, and spool displacement is zero, and device III is in closed condition.
When well head applies hydraulic pressure P4, turning round the rail pin among device I, II, the III all enters 5 grades of guide-track grooves and arrives the d point, when removing well head pressure P4, under the effect of big spring elastic force, pass through guiding valve, ball seat makes on the positioning sleeve and moves, guide pins among device I, II, the III is all got back to 1 grade of a point in the guide rail along 5 grades of guide-track grooves, and the sliding sleeve displacement is zero, and device I, II, III all are in closed condition, at this moment just finished the overall process of a circulation, repeated above-mentioned steps and can enter second circulation.
In Fig. 1: 1, top connection; 2, adjusted cap; 3, main body; 4, raise pole; 5, little spring cover; 6, little spring pad; 7, little spring; 8, positioning sleeve; 9, guide pins; 10, the cover of blocking; 11, ball; 12, spacer pin; 13, ball seat; 15, guiding valve; 18, guiding valve is stifled; 19, big spring; 20, center tap; 21, big spring cover; 22, shell; 23, big spring pad; 24, regulate cap down; 25, lower dolly bar; 14,16,17, sealing ring.
In Fig. 2: 26, pump; 27, packer; 28, oil reservoir; 29, oil pipe; 30, sleeve pipe.
The utility model can be finished the program of table 2 by adjusting the guide rail grooved shape on the positioning sleeve 8.
＜table 1 〉
| Well head pressure | Breakdown | Close |
| P 1 | II、III | I |
| P 2 | I、III | II |
| P 3 | I、II | III |
| P 4 | Close All | |
＜table 2 〉
| Well head pressure | Breakdown | Close |
| P 1 | I | II、III |
| P 2 | II | I、III |
| P 3 | III | I、II |
| P 4 | Close All | |
Claims (2)
1, but a kind of control device of producing well pressure remote control repeat switch, be by top connection (1), main body (3), center tap (20) and shell (22) are formed, be threaded successively, it is characterized in that: adjusted cap (2) is connected with rise pole (4) positioning sleeve (8) by screw thread, guide pins (9) is connected with main body (3) by screw thread, the protuberance of guide pins (9) embeds in the guide-track groove of positioning sleeve (8), positioning sleeve (8) is connected with ball seat (13) by spacer pin (12), guiding valve (15) is threaded with guiding valve stifled (18), ball (11) contacts with ball seat (13) under the effect of the little spring (7) and cover (10) of blocking forms one way valve, big spring cover (21) is connected with main body (3) spiral shell mosquito, and following adjusting cap (24) is connected with lower dolly bar (25) and big spring cover (21) by screw thread.
But 2, the control device of pressure remote control repeat switch according to claim 1 is characterized in that forming multipoint positioning mechanism by the guide pins (9) that embeds in the multistage guide-track groove of positioning sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220580 CN2223778Y (en) | 1995-08-29 | 1995-08-29 | Pressure remote control device being able to repeatedly switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220580 CN2223778Y (en) | 1995-08-29 | 1995-08-29 | Pressure remote control device being able to repeatedly switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2223778Y true CN2223778Y (en) | 1996-04-03 |
Family
ID=33868427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95220580 Expired - Fee Related CN2223778Y (en) | 1995-08-29 | 1995-08-29 | Pressure remote control device being able to repeatedly switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2223778Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019862A (en) * | 2015-03-23 | 2015-11-04 | 浙江大学 | Accumulator-driven sliding sleeve switch used for petroleum well completion |
| CN105186439A (en) * | 2015-09-29 | 2015-12-23 | 沈阳工业大学通益科技有限公司 | Cable joint seal structure of high-temperature electric submersible pump |
| CN105422037A (en) * | 2015-11-26 | 2016-03-23 | 梁伟成 | Hydraulic automatic blowout control controller |
| CN105672931A (en) * | 2016-01-18 | 2016-06-15 | 梁伟成 | Novel hydraulic blowout prevention automatic controller |
-
1995
- 1995-08-29 CN CN 95220580 patent/CN2223778Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019862A (en) * | 2015-03-23 | 2015-11-04 | 浙江大学 | Accumulator-driven sliding sleeve switch used for petroleum well completion |
| CN105019862B (en) * | 2015-03-23 | 2017-05-24 | 浙江大学 | Accumulator-driven sliding sleeve switch used for petroleum well completion |
| CN105186439A (en) * | 2015-09-29 | 2015-12-23 | 沈阳工业大学通益科技有限公司 | Cable joint seal structure of high-temperature electric submersible pump |
| CN105422037A (en) * | 2015-11-26 | 2016-03-23 | 梁伟成 | Hydraulic automatic blowout control controller |
| CN105422037B (en) * | 2015-11-26 | 2018-02-09 | 辽宁新华仪器有限公司 | Fluid pressure type blowout prevention automatic controller |
| CN105672931A (en) * | 2016-01-18 | 2016-06-15 | 梁伟成 | Novel hydraulic blowout prevention automatic controller |
| CN105672931B (en) * | 2016-01-18 | 2018-02-09 | 辽宁新华仪器有限公司 | New Type of Hydraulic blowout prevention automatic controller |
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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 |