CN202152673U - Anti-erosion nozzle - Google Patents
Anti-erosion nozzle Download PDFInfo
- Publication number
- CN202152673U CN202152673U CN 201120240451 CN201120240451U CN202152673U CN 202152673 U CN202152673 U CN 202152673U CN 201120240451 CN201120240451 CN 201120240451 CN 201120240451 U CN201120240451 U CN 201120240451U CN 202152673 U CN202152673 U CN 202152673U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- erosion
- hole
- impact erosion
- erosion nozzle
- 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 - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0078—Nozzles used in boreholes
Abstract
The utility model relates to an anti-erosion nozzle which is applied to oilfield fracture well production layer and used for increasing the productivity. The anti-erosion nozzle is in a shape of a cylinder, and threads are arranged on the outer wall of the anti-erosion nozzle; a regular hexagonal cylinder is arranged at the outer end of the anti-erosion nozzle, and the anti-erosion nozzle is provided with a center hole which is divided into an inner end conical hole, a middle cylinder hole and an outer end conical hole; the diameter of the middle cylinder hole ranges from 5mm to 6mm, and the length of the middle cylinder hole ranges from 5mm to 8mm; the conical degree of the inner end conical hole ranges from 13 degrees to 14 degrees; and the maximum external diameter of the outer end conical hole is ranging from 20mm to 29mm. The anti-erosion nozzle is made of tungsten carbide hard alloy. The anti-erosion nozzle resists erosion and has an optimal flow channel; and with the adoption of the anti-erosion nozzle, longer jetting range of a jet flow is ensured, so that the high pressure water jet flow is easier to jet a bushing and the production layer to open.
Description
Technical field
The utility model relates to casing-head gas down-hole technical field of construction, particularly a kind of nozzle of anti-impact erosion of oil well delamination pressure break.
Background technology
The Sichuan oil gas field has numerous multilayered reservoir gas reservoir, for example in the river, the Xu Jia river group gas reservoir that extensively distributes of Chuan Nan, the Sha Xi mausoleum group gas reservoir of Chuan Xi, Peng Lai town group gas reservoir of shallow-layer.These gas reservoirs show more than the layer mostly and payzone is thin, the individual layer production capacity is low, the gas field development benefit is low.For the oil gas well of this type reservoir, must implement separate stratum fracfturing in the vertical, could at utmost liberate payzone.Implement separate stratum fracfturing in the vertical and adopt common nozzle, the oil gas field payzone is penetrated out in very difficult realization.Nozzle is fixed on the ejector body wall, and high-pressure fluid washes away payzone from nozzle center's hole ejection.The quality of nozzle arrangements directly influences the speed and the ejection efficiency of water jet.
Summary of the invention
The purpose of the utility model is: a kind of nozzle of anti-impact erosion is provided, is installed on the body of ejector, improve the impact velocity of jet particle, the oil gas field payzone is opened in the short period injection.
The technical scheme that the utility model adopts is: the nozzle of anti-impact erosion is characterized in that: its shape of nozzle of anti-impact erosion is the cylinder bodily form, on the nozzle outer wall of anti-impact erosion screw thread is arranged; There is the orthohexagonal cylinder outer end at the nozzle of anti-impact erosion, and the orthohexagonal cylinder is the fixing hexagon spanner usefulness when nozzle of anti-impact erosion is installed.The nozzle of anti-impact erosion has centre bore, and the centre bore of the nozzle of anti-impact erosion is divided into inner conical bore, intermediate cylindrical hole and outer end conical bore; The diameter in intermediate cylindrical hole is between 5～6mm, and the length in intermediate cylindrical hole is between 5～8mm; The roughness of intermediate cylindrical internal surface of hole is between the Ra 0.2～0.4; The tapering of inner conical bore is between 13～14 °; The maximum outside diameter of outer end conical bore is 20～29mm.The nozzle of described anti-impact erosion adopts Talide to process.
The installation of the nozzle of summary anti-impact erosion.With reference to Fig. 1.Nozzle 2 screw threads of anti-impact erosion are fixed on injector body 1 wall.Nozzle 2 in the anti-impact erosion has sealing ring 3 between injector body 1.The nozzle 2 that the erosion of four lines anti-impact is arranged on injector body 1 wall; Nozzle 2 interlaced the opening of the anti-impact erosion of adjacent two row.Passage (centre bore) surface of the nozzle 2 of anti-impact erosion has the effect of anti-backwash; The nozzle 2 of anti-impact erosion adopts carbide alloy to be processed into, and does not have the reaming phenomenon through flow passage aperture after several hours the erosion, and centre bore does not have distortion.
The beneficial effect of the utility model: the nozzle of the utility model anti-impact erosion, have erosion resistance, best runner is arranged, guarantee that jet has range far away, make high-pressure water jet penetrate out sleeve pipe and payzone more easily.The nozzle of anti-impact erosion makes the speed difference of exit particle and water jet as far as possible little, and the life-span of blast nozzle also can reach the designing requirement of erosion rock.In the broken rock construction of abrasive water-jet, the nozzle of anti-impact erosion is one of critical component, and the quality of its performance and the length in application life directly have influence on rock breaking capacity and cutting energy consumption.
Description of drawings
Fig. 1 is that the nozzle of the utility model anti-impact erosion is installed in the structural profile sketch map on the injector body.
Among the figure, 1-injector body, the nozzle of 2-anti-impact erosion, 3-sealing ring.
The specific embodiment
Embodiment 1:
Consult Fig. 1.The nozzle 2 of anti-impact erosion be shaped as the cylinder bodily form, on nozzle 2 outer walls of anti-impact erosion screw thread is arranged; There is the orthohexagonal cylinder outer end at the nozzle 2 of anti-impact erosion.The nozzle 2 of anti-impact erosion has centre bore, and the centre bore of the nozzle 2 of anti-impact erosion is divided into inner conical bore, intermediate cylindrical hole and outer end conical bore.The diameter 5.5mm in intermediate cylindrical hole, the length in intermediate cylindrical hole is 7mm.The roughness of intermediate cylindrical internal surface of hole is Ra 0.4; The tapering of inner conical bore is 13 °.The maximum outside diameter of outer end conical bore is 25mm.The nozzle 2 of anti-impact erosion adopts Talide to process.
Claims (1)
1. the nozzle of anti-impact erosion is characterized in that: the nozzle (2) of anti-impact erosion be shaped as the cylinder bodily form, on nozzle (2) outer wall of anti-impact erosion screw thread is arranged; There is the orthohexagonal cylinder outer end at the nozzle (2) of anti-impact erosion, and the nozzle (2) of anti-impact erosion has centre bore, and the centre bore of the nozzle (2) of anti-impact erosion is divided into inner conical bore, intermediate cylindrical hole and outer end conical bore; The diameter in intermediate cylindrical hole is between 5～6mm, and the length in intermediate cylindrical hole is between 5～8mm; The roughness of intermediate cylindrical internal surface of hole is between the Ra 0.2～0.4; The tapering of inner conical bore is between 13～14 °; The maximum outside diameter of outer end conical bore is 20～29mm; The nozzle (2) of described anti-impact erosion adopts Talide to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120240451 CN202152673U (en) | 2011-07-08 | 2011-07-08 | Anti-erosion nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120240451 CN202152673U (en) | 2011-07-08 | 2011-07-08 | Anti-erosion nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202152673U true CN202152673U (en) | 2012-02-29 |
Family
ID=45693173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120240451 Expired - Lifetime CN202152673U (en) | 2011-07-08 | 2011-07-08 | Anti-erosion nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202152673U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727794A (en) * | 2015-02-03 | 2015-06-24 | 北京众博达石油科技有限公司 | Scouring-resistant ejector |
| CN108086964A (en) * | 2017-12-04 | 2018-05-29 | 中煤科工集团西安研究院有限公司 | Coal bed gas horizontal well orients hydrajet tool string and construction method |
| CN112610197A (en) * | 2020-12-16 | 2021-04-06 | 靖江市强林石油钻采设备制造有限公司 | Anti-erosion nozzle for oil field stratum fracturing |
-
2011
- 2011-07-08 CN CN 201120240451 patent/CN202152673U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727794A (en) * | 2015-02-03 | 2015-06-24 | 北京众博达石油科技有限公司 | Scouring-resistant ejector |
| CN108086964A (en) * | 2017-12-04 | 2018-05-29 | 中煤科工集团西安研究院有限公司 | Coal bed gas horizontal well orients hydrajet tool string and construction method |
| CN112610197A (en) * | 2020-12-16 | 2021-04-06 | 靖江市强林石油钻采设备制造有限公司 | Anti-erosion nozzle for oil field stratum fracturing |
| CN112610197B (en) * | 2020-12-16 | 2023-11-24 | 靖江市强林石油钻采设备制造有限公司 | Erosion-resistant nozzle for oilfield stratum fracturing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120229 |
|
| CX01 | Expiry of patent term |