CN203463072U - Novel inner ball valve tool - Google Patents
Novel inner ball valve tool Download PDFInfo
- Publication number
- CN203463072U CN203463072U CN201320549221.5U CN201320549221U CN203463072U CN 203463072 U CN203463072 U CN 203463072U CN 201320549221 U CN201320549221 U CN 201320549221U CN 203463072 U CN203463072 U CN 203463072U
- Authority
- CN
- China
- Prior art keywords
- ball valve
- interior ball
- inner ball
- key
- connector
- 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 novel inner ball valve tool which comprises an upper connector, a stress cracking nozzle, a connecting shear pin, an inner ball valve, a seal ring, a key, a convex base, a concave base and a lower connector, wherein the inner side of the lower end of the upper connector and the outer side of the upper end of the lower connector are fixedly connected through a screw thread, the connecting shear pin is mounted and fixed between the upper connector and the inner ball valve, the lower connector and the inner ball valve are connected through the key and slide, the concave base on the inner side of the lower end of the lower connector is matched with the convex base on the upper side of the lower end of the inner ball valve, the key is fixedly mounted on the outer side of the inner ball valve, a groove is formed in the inner side surface of the lower connector, the key slides in the groove, the lower end of the inner ball valve comprises a sleeve claw, square through slots are formed at the tail end of the inner ball valve, and the inner ball valve slides to expand the sleeve claw. The novel ball valve tool greatly increases the area communicating with a reservoir stratum, is simple in structure and excellent in function, and fulfills the purposes of saving the cost to the greatest extent and efficiently developing the reservoir stratum.
Description
Technical field
The utility model relates to the special downhole tool for conventional gas and oil, shale gas, coal bed gas, particularly relates to for horizontal bare hole well section and the matching used novel interior ball valve instrument of open hole packer.
Background technology
Horizontal well multistage pressure break completion technique is an efficient completion yield-increasing technology of rising in recent years.China's low-permeability oil gas reservoir complex structure, there is the problems such as hop count is few, inefficiency, core tool dependence on import in existing fracturing technique, the pressure break ball valve product of China's independent research still exists many limitations: pitching negligible amounts, pressure break ball valve efficiency be lower, link up with stratum that area is less, seepage area is narrow and small.
Around the problems referred to above, in the urgent need to developing a kind of novel interior ball valve instrument that is applicable to conventional gas and oil, coal seam oil gas, fine and close oil gas, shale oil gas, can realize multistage horizontal bare hole well is carried out to effective pressure break, ball valve instrument in a plurality of pressure breaks is opened in a pitching, hydraulic pressure impacts pressure break shower nozzle and sprays pressure break, can according to the situation of user's request and reservoir to be developed, formulate orientation and the shape of pressure break shower nozzle completely simultaneously, greatly improve and rock stratum contact surface and post-fracturing seepage area, significantly increase incipient crack quantity.
Utility model content
The purpose of this utility model is to provide that a kind of crush speed is fast, flexibility is high, and can to horizontal well, carry out a kind of novel interior ball valve instrument that multistage pressure break increases substantially pressure break efficiency simultaneously.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of novel interior ball valve instrument, by top connection, pressure break spout, connect shear pin, interior ball valve, sealing ring, key, projection seat, dimple, lower contact forms, it is characterized in that: inner side, top connection lower end is fixed together by screw thread with outside, lower contact upper end, between top connection and interior ball valve, install and be connected shear pin and fix, lower contact is connected slip with interior ball valve by key, inner side, lower contact lower end has a dimple to match with the projection seat of interior ball valve lower end upside, interior ball valve stops sliding, key is fixedly mounted on interior ball valve outside, and on lower contact medial surface, open a groove, allow key slide betwixt, interior ball valve lower end consists of sleeve pawl, its end has square three-way groove, dimple and projection seat match and make the hole enlargement of sleeve pawl after interior ball valve slides.
Compared with prior art, the beneficial effect having is the utility model: (1) has the function that several novel interior ball valve instruments are opened in a pitching, maximizes and improves pressure break efficiency; (2) simple in structure, applied widely, powerful, greatly improve with rock stratum contact area, maximize cost-saving and exploitation reservoir.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of novel interior ball valve instrument of the utility model;
Structural representation when Fig. 2 is the work of a kind of novel interior ball valve instrument of the utility model.
In figure: 1. top connection, 2. pressure break spout, 3. connects shear pin, 4. key, 5. projection seat, 6. lower contact, 7. interior ball valve, 8. sealing ring, 9. dimple.
The specific embodiment
As shown in Figure 1, a kind of novel interior ball valve instrument is top connection 1, pressure break spout 2, connect shear pin 3, key 4, projection seat 5, lower contact 6, interior ball valve 7, sealing ring 8, dimple 9 forms, top connection 1 inner side, lower end is fixed together by screw thread with lower contact 6 outsides, upper end, there is pressure break spout 2 top connection 1 upper end, before unlatching, by interior ball valve 7, sheltered from, it is fixing with top connection 1 that interior ball valve 7 connects shear pin 3 by installation, reach the object that hides pressure break spout 2, lower contact 6 is connected slip with interior ball valve 7 by key 4, key 4 is fixedly mounted on above interior ball valve 7 lower ends, outside, and the corresponding groove of opening on lower contact 6 medial surfaces, can allow key 4 slide betwixt, until interior ball valve 7 stop motions, lower contact 6 inner sides, lower end have a dimple 9 to match with the projection seat 5 of interior ball valve 7 lower end upsides, interior ball valve 7 lower ends consist of sleeve pawl, at its end, have square three-way groove, dimple 9 matches and makes the hole enlargement of sleeve pawl after interior ball valve 7 slides with projection seat 5.
By Fig. 2, shown, novel interior ball valve instrument is lowered into after object well depth, after the interior pitching of tubing string, compound pitching falls on the sleeve pawl of interior ball valve 5, thereafter tubing string internal pressure rises, promote descending the cutting off of compound pitching and connect shear pin 3, due to the effect that has the projection seat 5 in interior ball valve 7 outsides, lower end and the dimple 9 of lower contact 6 inner sides, lower end to match, when projection seat 5 has just started to enter dimple 9, because sleeve pawl has a plurality of square three-way grooves radially, can tubing string sprain press in diameter slightly expand and allow compound pitching pass through, until interior ball valve 7 lower ends can not be descending.
Claims (2)
1. a novel interior ball valve instrument, by top connection, pressure break spout, connect shear pin, interior ball valve, sealing ring, key, projection seat, dimple, lower contact forms, it is characterized in that: inner side, top connection (1) lower end is fixed together by screw thread with outside, lower contact (6) upper end, between top connection (1) and interior ball valve (7), install and is connected shear pin (3) and fixes, lower contact (6) is connected slip with interior ball valve (7) by key (4), inner side, lower contact (6) lower end has a dimple (9) to match with the projection seat (5) of interior ball valve (7) lower end upside, interior ball valve (7) stops sliding.
2. novel interior ball valve instrument according to claim 1, it is characterized in that: key (4) is fixedly mounted on interior ball valve (7) outside, and on lower contact (6) medial surface, open a groove, allow key (4) slide betwixt, interior ball valve (7) lower end consists of sleeve pawl, its end has square three-way groove, and dimple (9) matches and makes the hole enlargement of sleeve pawl after interior ball valve (7) slides with projection seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549221.5U CN203463072U (en) | 2013-09-05 | 2013-09-05 | Novel inner ball valve tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549221.5U CN203463072U (en) | 2013-09-05 | 2013-09-05 | Novel inner ball valve tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463072U true CN203463072U (en) | 2014-03-05 |
Family
ID=50175444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320549221.5U Expired - Fee Related CN203463072U (en) | 2013-09-05 | 2013-09-05 | Novel inner ball valve tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075793A (en) * | 2022-07-01 | 2022-09-20 | 西南石油大学 | Unlimited-level intelligent sliding sleeve |
-
2013
- 2013-09-05 CN CN201320549221.5U patent/CN203463072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075793A (en) * | 2022-07-01 | 2022-09-20 | 西南石油大学 | Unlimited-level intelligent sliding sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |