CN201763298U - Special-purpose forcing cone for horizontal well sand washing - Google Patents
Special-purpose forcing cone for horizontal well sand washing Download PDFInfo
- Publication number
- CN201763298U CN201763298U CN2010205501210U CN201020550121U CN201763298U CN 201763298 U CN201763298 U CN 201763298U CN 2010205501210 U CN2010205501210 U CN 2010205501210U CN 201020550121 U CN201020550121 U CN 201020550121U CN 201763298 U CN201763298 U CN 201763298U
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- China
- Prior art keywords
- starting taper
- horizontal well
- sand washing
- well sand
- sand
- 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 special-purpose forcing cone for horizontal well sand washing, which aims to resolve the problem of the prior art that the horizontal well screen casing will be damaged by the sand washing pen tip and the horizontal well will even be stopped working. The utility model is advantageous in that the front end of the horizontal well sand washing forcing cone is designed in an ellipsoidal shape, which effectively reduces the mechanical damage on the horizontal well screen casing in the process of sand washing; the front part of the forcing cone is provided with one or a plurality of spiral sand washing holes, thereby strong rotating liquid flow can be generated, which enables the fully stirring of sand setting in the horizontal well screen casing, improves the sand carrying capability of sand cleaning fluid, and reducing the mechanical damage on the horizontal well screen casing.
Description
Technical field
The utility model relates to a kind of oilfield horizontal well sand flushing tool, relates in particular to a kind of horizontal well sand washing starting taper.
Background technology
Horizontal well uses the sand washing nib mostly with sieve tube completion in carrying out horizontal well sand washing operation at present, because the horizontal well gradient is big, nib usually acts directly on the screen casing inwall, and it is caused very major injury.The lighter makes the horizontal well screen casing damage strengthen the sand production amount, and weight person sand buries oil reservoir can't sand washing and cause horizontal well to stop production, and gives national and enterprise causes very large loss.
The utility model content
For overcoming above-mentioned defective, the purpose of this utility model is to provide a kind of can reduce the sand washing nib produces mechanical wounding to the horizontal well screen casing horizontal well sand washing starting taper.
For achieving the above object, horizontal well sand washing starting taper of the present utility model comprises a tubbiness starting taper body, is provided with cavity in described starting taper body interior, is provided with tubing thread in the described cavity.Described starting taper body tip is an opening, and described starting taper body front end is the design of ellipsoid shape, and described front end is provided with 1 or a plurality of inboard spiral scouring sluice that communicates with the outside of leading section that makes.
Particularly, described starting taper is made up of three parts, is followed successively by: starting taper cylindrical shell, starting taper cone and starting taper front end.
Particularly, the tapering of starting taper is 1: 5-1: between 7.
Particularly, front end is a segment shape, and described segment radius is between 40mm-50mm.
Particularly, become 15 degree angles on average to process 4 through holes that can produce eddy flow with axis at starting taper front end sphere, described clear size of opening is Φ 15mm-Φ 20mm, and described through hole center becomes 15 degree angles with axis.
Particularly, described starting taper can directly be connected with the sand washing tubing string is terminal by the tubing thread in its cavity.
To the mechanical wounding problem of horizontal well sand washing screen casing, also improve horizontal well sand washing prop-carrying capacity simultaneously when the design of the utility model horizontal well sand washing starting taper by front end ellipsoid and scouring sluice solved work, reduced operating worker regular job intensity.The utility model horizontal well sand washing starting taper has higher popularization and application values.
Description of drawings
Fig. 1 is the structure chart of the utility model horizontal well sand washing starting taper embodiment.
The specific embodiment
Below in conjunction with Figure of description the specific embodiment of the present utility model is done detailed description.
As shown in Figure 1, horizontal well sand washing starting taper is divided into starting taper cylindrical shell 1, starting taper cone 2 and 3 three parts of starting taper front end.Starting taper cylindrical shell 1 and cone 2 inside are equipped with the perforation cavity, are respectively cavity 5 and cavity 6, are provided with tubing thread 7 in described cavity 6, and the inboard of starting taper front end 3 is provided with cavity 8; Described front end 3 is the design of sphere shape, and front end 3 is provided with 4 spiral scouring sluices 4 that cavity 8 is communicated with the outside.
The tapering of starting taper cone 2 is 1: 5.The segment radius of front end 3 is at 42mm.Become 15 degree angles on average to process 4 through holes 4 that can produce eddy flow with axis at starting taper front end 3 spheres, described through hole 4 is of a size of Φ 15mm, and described through hole 4 centers become 15 degree angles with axis.
The design of the sphere shape of starting taper front end 3 has reduced in the sand washing process mechanical wounding to the horizontal well screen casing effectively.At 4 spiral scouring sluices of front end 3 places design, can produce strong rotation liquid stream simultaneously, sand setting in the horizontal well screen casing is fully stirred, improve the prop-carrying capacity of sand cleaning fluid.
In conjunction with original ground sand flushing device, need only after connect the utility model horizontal well sand washing starting taper, original sand washing tubing string end be lowered to pre-resistance position and can carry out the sand washing operation during work.Horizontal well sand washing starting taper is connected by tubing thread in its cavity and sand washing tubing string are terminal, and connected mode can be multiple modes such as riveted joint, welding.The manufacturing of the utility model horizontal well sand washing starting taper is simple, practical and convenient, and not only reduced the mechanical wounding of horizontal well screen casing but also improved sand washing efficient,
More than; it only is preferred embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (6)
1. horizontal well sand washing starting taper, it is characterized in that: comprise a tubbiness starting taper body, described starting taper body interior is provided with cavity, be provided with tubing thread in the described cavity, described starting taper body tip is an opening, described starting taper body front end is the design of ellipsoid shape, and front end is provided with 1 or a plurality of inboard spiral scouring sluice that communicates with the outside of front end that makes.
2. horizontal well sand washing starting taper according to claim 1, it is characterized in that: described starting taper is made up of three parts, is followed successively by: starting taper cylindrical shell, starting taper cone and starting taper front end.
3. horizontal well sand washing starting taper according to claim 1 is characterized in that: the tapering of described starting taper is 1: 5-1: between 7.
4. horizontal well sand washing starting taper according to claim 1 is characterized in that: described starting taper front end is a segment shape, and described segment radius is between 40mm-50mm.
5. horizontal well sand washing starting taper according to claim 1, it is characterized in that: become 15 degree angles on average to process 4 through holes that can produce eddy flow with axis at described starting taper front end sphere, described clear size of opening is Φ 15mm-Φ 20mm, and described through hole center becomes 15 degree angles with axis.
6. horizontal well sand washing starting taper according to claim 1 is characterized in that: described starting taper can directly be connected with the sand washing tubing string is terminal by the tubing thread in its cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205501210U CN201763298U (en) | 2010-09-30 | 2010-09-30 | Special-purpose forcing cone for horizontal well sand washing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205501210U CN201763298U (en) | 2010-09-30 | 2010-09-30 | Special-purpose forcing cone for horizontal well sand washing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763298U true CN201763298U (en) | 2011-03-16 |
Family
ID=43715907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205501210U Expired - Fee Related CN201763298U (en) | 2010-09-30 | 2010-09-30 | Special-purpose forcing cone for horizontal well sand washing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790891A (en) * | 2015-04-09 | 2015-07-22 | 中国石油集团西部钻探工程有限公司 | Rotary sand washing head |
-
2010
- 2010-09-30 CN CN2010205501210U patent/CN201763298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790891A (en) * | 2015-04-09 | 2015-07-22 | 中国石油集团西部钻探工程有限公司 | Rotary sand washing head |
| CN104790891B (en) * | 2015-04-09 | 2018-10-12 | 中国石油集团西部钻探工程有限公司 | Rotate sand washing head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20110930 |