CN217233469U - Sand-proof screen pipe - Google Patents
Sand-proof screen pipe Download PDFInfo
- Publication number
- CN217233469U CN217233469U CN202221243646.9U CN202221243646U CN217233469U CN 217233469 U CN217233469 U CN 217233469U CN 202221243646 U CN202221243646 U CN 202221243646U CN 217233469 U CN217233469 U CN 217233469U
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- China
- Prior art keywords
- parent tube
- sand control
- pipe
- protective sleeve
- protective sheath
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Abstract
The utility model discloses a sand control screen pipe, include, the parent tube and set up the filter assembly in the parent tube outside, be provided with a plurality of inlet port on the pipe wall of parent tube, filter assembly includes the interior protective sheath that sets gradually from inside to outside, weave the filter screen, metal foam filter layer and outer protective sheath, all be provided with a plurality of discharge orifice on the pipe wall of interior protective sheath and outer protective sheath, be provided with the support frame on the inside wall of interior protective sheath, support frame and parent tube contact, make and form the annular gap that can supply oil stream to flow through between interior protective sheath and the parent tube, the parent tube both ends are provided with the external screw thread, end and parent tube threaded connection, and it is fixed with the outside filter assembly of parent tube. The utility model discloses simple structure, reasonable in design filters the sand-containing crude oil through the outside filter assembly of parent tube, has better sand control effect, in addition the utility model discloses a sand control screen pipe adopts assembled structure, can conveniently wash or change, makes screen pipe repeatedly usable after wasing or changing parts, saves the cost.
Description
Technical Field
The utility model relates to a sand control screen pipe.
Background
The screen pipe sand control is a sand control method for blocking formation sand outside a well casing by a physical means. Sand screens have been widely used in oilfield applications as one of the important mechanical screens.
The existing sand control screen pipe comprises a base pipe and a filter sleeve, wherein the filter sleeve is arranged outside the base pipe and is welded with the base pipe through a plugging ring, the base pipe, the plugging ring and the filter sleeve are welded into a whole, although the sand control screen pipe has a good sand control effect, the production cost is high, and due to the adoption of a welding mode for connection, when the filter sleeve is blocked, the sand control screen pipe cannot be cleaned or replaced, the service life is short, and the permeability is low.
Disclosure of Invention
The utility model provides a sand control screen pipe, this sand control screen pipe have better sand control effect, and sand control screen pipe adopts assembled structure, can conveniently change or wash, save the cost.
The utility model provides a sand control screen pipe, includes, parent tube and the setting is provided with a plurality of inlet port, its characterized in that at the outside filter assembly of parent tube on the pipe wall of parent tube: the filter assembly comprises an inner protective sleeve, a woven filter screen, a metal foam filter layer and an outer protective sleeve which are sequentially arranged from inside to outside, wherein the pipe walls of the inner protective sleeve and the outer protective sleeve are respectively provided with a plurality of overflowing holes, the inner side wall of the inner protective sleeve is provided with a support frame, the support frame is in contact with the base pipe, an annular gap through which oil flow can flow is formed between the inner protective sleeve and the base pipe, and the annular gap is communicated with an oil inlet hole of the base pipe; the parent tube both ends are provided with the external screw thread, be provided with on the end with the external screw thread matched with screw hole of parent tube, end and parent tube threaded connection to it is fixed with the outside filtering component of parent tube through the end.
The inside wall of end is provided with the circular bead, and filtering component's outer edge is fixed with the circular bead cooperation of end.
The end is also provided with an external thread which can be connected with the oil pipe.
The inside notch that is provided with of end, be provided with the sealing washer on this notch, the end is screwed on the parent tube, seals through the sealing washer.
The inner protective sleeve and the outer protective sleeve are both stainless steel sleeves.
The end head is made of stainless steel material.
The utility model discloses simple structure, reasonable in design filters the sand-containing crude oil through the outside filter assembly of parent tube, has better sand control effect, and the oil permeability is high, improves the oil production volume, in addition the utility model discloses a sand control screen pipe adopts assembled structure, can conveniently wash or change, makes screen pipe repeatedly usable after wasing or changing parts, saves manufacturing cost greatly.
Drawings
FIG. 1 is a cross-sectional view of a sand control screen according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are not intended to limit the scope of the invention, but rather, are intended to cover all modifications and equivalents of the claims.
As shown in figure 1, the utility model discloses a sand control screen pipe includes parent tube 1, the outside of parent tube 1 is provided with filter assembly, this filter assembly includes interior protective sheath 2 that sets gradually from inside to outside, weave filter screen 3, metal foam filter layer 4 and outer protective sheath 5, be provided with a plurality of inlet port on parent tube 1's the pipe wall, all be provided with a plurality of discharge orifice on interior protective sheath 2 and outer protective sheath 5's the pipe wall, be provided with support frame 9 on interior protective sheath 2's the inside wall, this support frame 9 contacts with parent tube 1, form annular gap 8 that can supply the oil stream to flow through between messenger interior protective sheath 2 and the parent tube 1, this annular gap 8 is linked together with the inlet port of parent tube 1. The base pipe 1 both ends are provided with the external screw thread, are provided with on the end 6 with the external screw thread matched with screw hole of base pipe 1, end 6 and 1 threaded connection of base pipe to it is fixed with the outside filtering component of base pipe 1 through end 6.
Furthermore, the inside wall of end 6 is provided with the shoulder, and the outer edge of filter component is fixed with the shoulder cooperation of end 6.
The end head 6 is also provided with an external thread, and can be connected with an oil pipe through the external thread.
A notch is arranged in the end head 6, a sealing ring 7 is arranged on the notch, and the end head 6 is screwed on the base tube 1 and sealed by the sealing ring 7.
The utility model discloses a parent tube 1, interior protective sheath 2, weave filter screen 3, metal foam filter layer 4 and outer protective sheath 5 and be the assembled connection, conveniently wash or change filter assembly, can not wash or change the problem in having solved the conventional art.
Metal foam filter layer 4 with weave filter screen 3 and set up between outer protective sheath 5 and interior protective sheath 2, can effectively avoid containing sand crude oil direct impact metal foam filter layer 4 and weave filter screen 3, reduce to metal foam filter layer 4 and weave filter screen 3 erosion destruction, filter crude oil through metal foam filter layer 4 and weave filter screen 3, strengthen the sand control effect of screen pipe.
The utility model discloses an interior protective sheath 2 all adopts stainless steel sleeve with outer protective sheath 5, and end 6 adopts stainless steel material to make and forms, can improve the corrosion resistance of sand control screen pipe.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides a sand control screen pipe, includes, parent tube (1) and the setting is provided with a plurality of inlet port, its characterized in that on the pipe wall of parent tube (1) at the outside filter assembly of parent tube (1): the filter assembly comprises an inner protective sleeve (2), a woven filter screen (3), a metal foam filter layer (4) and an outer protective sleeve (5) which are sequentially arranged from inside to outside, wherein the pipe walls of the inner protective sleeve (2) and the outer protective sleeve (5) are respectively provided with a plurality of overflowing holes, the inner side wall of the inner protective sleeve (2) is provided with a support frame (9), the support frame (9) is in contact with the base pipe (1), an annular gap (8) through which oil can flow is formed between the inner protective sleeve (2) and the base pipe (1), and the annular gap (8) is communicated with an oil inlet hole of the base pipe (1); the base pipe (1) both ends are provided with the external screw thread, are provided with on end (6) with the external screw thread matched with screw hole of base pipe (1), end (6) and base pipe (1) threaded connection to it is fixed with the outside filtering component of base pipe (1) through end (6).
2. The sand control screen of claim 1, wherein: the inside wall of end (6) is provided with the shoulder, and the outer edge of filtering component is fixed with the shoulder cooperation of end (6).
3. The sand control screen of claim 2, wherein: the end head (6) is also provided with an external thread, and can be connected with an oil pipe through the external thread.
4. The sand control screen of claim 3, wherein: the inside notch that is provided with of end (6), be provided with sealing washer (7) on this notch, end (6) are screwed on parent tube (1), are sealed through sealing washer (7).
5. The sand control screen of claim 1, wherein: the inner protective sleeve (2) and the outer protective sleeve (5) both adopt stainless steel sleeves.
6. The sand control screen of claim 1, wherein: the end head (6) is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221243646.9U CN217233469U (en) | 2022-05-23 | 2022-05-23 | Sand-proof screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221243646.9U CN217233469U (en) | 2022-05-23 | 2022-05-23 | Sand-proof screen pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217233469U true CN217233469U (en) | 2022-08-19 |
Family
ID=82824152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221243646.9U Active CN217233469U (en) | 2022-05-23 | 2022-05-23 | Sand-proof screen pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217233469U (en) |
-
2022
- 2022-05-23 CN CN202221243646.9U patent/CN217233469U/en active Active
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