CN201218059Y - High pressure nozzle of radial horizontal well - Google Patents
High pressure nozzle of radial horizontal well Download PDFInfo
- Publication number
- CN201218059Y CN201218059Y CNU2008200904557U CN200820090455U CN201218059Y CN 201218059 Y CN201218059 Y CN 201218059Y CN U2008200904557 U CNU2008200904557 U CN U2008200904557U CN 200820090455 U CN200820090455 U CN 200820090455U CN 201218059 Y CN201218059 Y CN 201218059Y
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- CN
- China
- Prior art keywords
- pressure nozzle
- high pressure
- horizontal well
- spray
- hole
- 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
A high-pressure nozzle for a radial horizontal well mainly solves the problems that the prior high-pressure nozzle generates relatively larger counterforce and the well diameter becomes small. The high-pressure nozzle for a radial horizontal well is characterized in that the central circumference of a main body (1) is evenly provided with 4 to 6 back spraying holes (2) maintaining 45 degrees with an axes-included angle A, and the lower circumference of the main body (1) is evenly provided with 2 to 4 front spraying holes (3) maintaining 160 degrees with an axes-included angle B. The utility model has the advantages of small counterforce and relatively larger well diameter.
Description
Technical field:
The utility model relates to oil drilling field horizontal well drilling used nozzle, especially radially horizontal well high pressure nozzle.
Background technology:
Along with the development of oil drilling technology, the radially horizontal well technology has obtained significant progress, for the recovery ratio that improves the oil field is made great contribution.Radially horizontal well is meant and utilizes special transfer (steering gear) and high-pressure nozzle (mouth), spray broken rock by high-pressure hydraulic, in the same oil reservoir of a bite well or different oil reservoir radially get out the radial horizontal hole of or several different azimuth, the purpose completion is arranged then.This technology is the remaining oil production technique of a kind of low cost, high benefit, and high pressure nozzle is a key equipment wherein.Present nozzle sprays shorter at net horizontal section, the borehole diameter of spraying is little, do not reach expected effect, the one of the main reasons that this phenomenon occurs is that high pressure nozzle exists in operation that to creep into high pressure nozzle water jet in the process that injection is crept into bigger to the reaction force of nozzle, cause the net horizontal section that sprays shorter, do not reach the length of expection, the borehole diameter that causes boring diminishes.
The utility model content:
Reach the problem that borehole diameter diminishes more greatly in order to solve existing high pressure nozzle reaction force, the utility model provides a kind of radially horizontal well high pressure nozzle, and this radially horizontal well high pressure nozzle has the advantages that reaction force is little and borehole diameter is bigger.
The technical solution of the utility model is: this radially horizontal well high pressure nozzle comprises the main body of high pressure nozzle, it is the back spray-hole of 45 degree with axis angle A that main body middle part circumference evenly has 4-6, and it is the preceding spray-hole of 160 degree with axis angle B that main body lower end circumference evenly has 2-4.
The utlity model has following beneficial effect: this radially horizontal well high pressure nozzle is owing to take such scheme, because of two groups of spray-holes before and after the front-back that creeps into high pressure nozzle has, before and after two groups of spray-holes with axially have different angles, back spray-hole has two effects: the one, offset high-pressure spray that preceding spray-hole sprays reaction force to nozzle; The 2nd, the borehole diameter of enlarge spraying, make creep into high pressure nozzle and flexible pipe can be easily by the high pressure window that nozzle opens on sleeve pipe of windowing, and can obtain to grow, injection well that diameter is bigger.This radially horizontal well high pressure nozzle has the advantages that reaction force is little and borehole diameter is bigger thus.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-main body among the figure, spray-hole before the spray-hole behind the 2-, 3-.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Shown in accompanying drawing, this radially horizontal well high pressure nozzle comprises the main body 1 of high pressure nozzle, it is the back spray-hole 2 of 45 degree with axis angle A that main body 1 middle part circumference evenly has 4-6, and the high-pressure spray of spray-hole ejection is to the reaction force of nozzle before offsetting by back spray-hole 2; It is the preceding spray-hole 3 of 160 degree with axis angle B that main body 1 lower end circumference evenly has 2-4.
During actual the use, use identical with existing nozzle.Because of the front and back of this radially horizontal well high pressure nozzle have back spray-hole 2 and before spray-hole 3, back spray-hole 2 and preceding spray-hole are organized spray-hole and are axially had different angles for 3 liang, when creeping into, offset the reaction force of the high-pressure spray of preceding spray-hole 3 ejections by back spray-hole 2 to nozzle, enlarge borehole diameter simultaneously, make that creeping into high pressure nozzle and flexible pipe can be easily leave window by the high pressure nozzle of windowing on sleeve pipe, and can obtain to grow, well that diameter is bigger.This radially horizontal well high pressure nozzle has the advantages that reaction force is little and borehole diameter is bigger thus.
Claims (1)
1, a kind of radially horizontal well high pressure nozzle, the main body (1) that comprises high pressure nozzle, it is characterized in that: it is the back spray-hole (2) of 45 degree with axis angle A that main body (1) middle part circumference evenly has 4-6, and it is the preceding spray-hole (3) of 160 degree with axis angle B that main body (1) lower end circumference evenly has 2-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200904557U CN201218059Y (en) | 2008-07-18 | 2008-07-18 | High pressure nozzle of radial horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200904557U CN201218059Y (en) | 2008-07-18 | 2008-07-18 | High pressure nozzle of radial horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218059Y true CN201218059Y (en) | 2009-04-08 |
Family
ID=40540895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200904557U Expired - Fee Related CN201218059Y (en) | 2008-07-18 | 2008-07-18 | High pressure nozzle of radial horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218059Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061712A (en) * | 2012-12-24 | 2013-04-24 | 中国石油大学(北京) | Rotary flow pickling method and device for removing contaminations in near-wellbore area of oil and gas well |
| CN105003204A (en) * | 2015-08-05 | 2015-10-28 | 重庆大学 | Punching device for coalbed methane mining physical simulation test |
-
2008
- 2008-07-18 CN CNU2008200904557U patent/CN201218059Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061712A (en) * | 2012-12-24 | 2013-04-24 | 中国石油大学(北京) | Rotary flow pickling method and device for removing contaminations in near-wellbore area of oil and gas well |
| CN103061712B (en) * | 2012-12-24 | 2016-01-27 | 中国石油大学(北京) | A kind of eddy flow acid washing method removed Oil/gas Well near wellbore zone and pollute |
| CN105003204A (en) * | 2015-08-05 | 2015-10-28 | 重庆大学 | Punching device for coalbed methane mining physical simulation test |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20170718 |