CN201170086Y - Stainless steel corrugated filter sand tube - Google Patents
Stainless steel corrugated filter sand tube Download PDFInfo
- Publication number
- CN201170086Y CN201170086Y CNU2008200115378U CN200820011537U CN201170086Y CN 201170086 Y CN201170086 Y CN 201170086Y CN U2008200115378 U CNU2008200115378 U CN U2008200115378U CN 200820011537 U CN200820011537 U CN 200820011537U CN 201170086 Y CN201170086 Y CN 201170086Y
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- China
- Prior art keywords
- stainless steel
- filter screen
- pipe
- tube
- standard oil
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a sand filtering tube for oil extraction of an oil field, in particular to a stainless steel corrugation sand filtering tube, comprising a standard oil extraction central tube and a standard oil pipe clamp catcher. A stainless steel corrugation sieve tube is sleeved on the standard oil extraction central tube. The standard oil extraction central pipe is in point contact with the stainless steel corrugation sieve tube. A protecting steel mesh is sleeved on the sieve tube. A sealing ring is sleeved on the joint of two adjacent stainless steel corrugation sieves. The sieve tube is a longitudinal or axial corrugation sieve tube. The stainless steel corrugation sieve tube is a double-layer composite welded stainless steel corrugation sieve tube. The thickness of a filtering layer is between 0.33 and 0.50 mm, and the thickness of the double-layer composite welded sieve tube is between 0.66 and 1.00 mm. The aperture of the mesh is between 0.06 and 0.40 mm, and the aperture of the mesh of the double-layer composite welded sieve tube is between 0.03 and 0.20 mm. The sand filtering tube which is thin in filter layer, high in sand stopping precision, large in flow area, and long in service life is provided.
Description
Technical field
The utility model relates to the sand screen of oil field oil recovery usefulness, especially a kind of stainless steel ripple sand screen.
Background technology
In the oil recovery process of oil field, enter in the oil recovery in order to prevent silt, use the stainless steel sand screen usually.A lot of horizontal wells, inclined shaft have appearred in the continuous development along with oil recovery technique, and this class oil well is higher to the requirement of sand screen, and the technical performance major part of existing various sand screens does not reach requirement, and the filtering layer of the sand screen that has is thicker; The sand block precision of the sand screen that has is not high; The area of passage of the sand screen that has is big inadequately; Fall short of application life.Therefore need that a kind of filtering layer of exploitation is thin, sand block precision height, area of passage are big, the sand screen of long service life.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, provides that a kind of filtering layer is thin, sand block precision height, area of passage are big, the sand screen of long service life.
The purpose of this utility model is achieved in that
Stainless steel ripple sand screen of the present utility model; comprise standard oil recovery central tube, standard oil pipe collar catcher; it is characterized in that outside described standard oil recovery central tube, being with stainless steel wave line filter screen pipe; between these stainless steel ripple filter screen pipe two ends and described standard oil recovery central tube, adopt and be tightly connected; between this stainless steel ripple filter screen tube body and described standard oil recovery central tube surface, be the some contact; this stainless steel ripple filter screen pipe is with the protection steel mesh outward, and the protection steel mesh at adjacent place, stainless steel ripple filter screen pipe junction surface is with joint ring.
Described stainless steel ripple filter screen pipe is longitudinal ripple filter screen pipe or axial corrugated screens pipe.
Described stainless steel ripple filter screen pipe is a double-layer stainless steel corrugated screens pipe.Repressed one-tenth half elliptic filter screen pipe.
The thickness of filter bed of described stainless steel ripple filter screen pipe is 0.33-0.50mm, described bilayer
Composite welding stainless steel corrugated screens tube thickness is 0.66-1.00mm.
The mesh aperture of described stainless steel ripple filter screen pipe is 0.06-0.40mm, and the mesh aperture of described two-layer compound soldering stainless steel corrugated screens pipe is 0.03-0.20mm.
Stainless steel ripple sand screen of the present utility model, owing to adopted the corrugated screens pipe, its developed area is big, has therefore increased area of passage, has improved oil recovery efficiency; Owing to strengthened the compressive strength of filtering layer behind the repressed one-tenth half elliptic of double-layer stainless steel corrugated screens pipe, changed stress, improved the critical external compressive resistance ability; Because be the some contact between stainless steel ripple filter screen tube body and the described standard oil recovery central tube surface, ripple high spot space is big, has improved permeability significantly; Because the mesh aperture of stainless steel ripple filter screen pipe is 0.06-0.40mm, the mesh aperture of two-layer compound soldering stainless steel corrugated screens pipe is adjustable to 0.03-0.20mm, and sand control precision can be adjusted to adapt to the sand control precision requirement of different oil wells by the actual state of oil well.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model.
As shown in Figure 1; stainless steel ripple sand screen of the present utility model; comprise standard oil recovery central tube 1; standard oil pipe collar catcher 6; it is characterized in that outside described standard oil recovery central tube 1, being with stainless steel wave line filter screen pipe 2; between these stainless steel ripple filter screen pipe 2 two ends and described standard oil recovery central tube 1, adopt seal connector 5 to be tightly connected; between this stainless steel ripple filter screen tube body and described standard oil recovery central tube surface, be the some contact; these stainless steel ripple filter screen pipe 2 outer protection steel meshes 3 that are with, the protection steel mesh at adjacent place, stainless steel ripple filter screen pipe junction surface is with joint ring 4.
Described stainless steel ripple filter screen pipe 2 is longitudinal ripple filter screen pipe or axial corrugated screens pipe.It shown in the figure axial corrugated screens pipe.
Described stainless steel ripple filter screen pipe 2 is a double-layer stainless steel corrugated screens pipe.Repressed one-tenth half elliptic filter screen pipe.
The thickness of filter bed of described stainless steel ripple filter screen pipe 2 is 0.33-0.50mm, and described two-layer compound soldering stainless steel corrugated screens tube thickness is 0.66-1.00mm.
The mesh aperture of described stainless steel ripple filter screen pipe 2 is 0.06-0.40mm, and the mesh aperture of described two-layer compound soldering stainless steel corrugated screens pipe is 0.03-0.20mm.
Stainless steel ripple sand screen of the present utility model, owing to adopted the corrugated screens pipe, its developed area is big, has therefore increased area of passage, has improved the oil recovery benefit; Owing to strengthened the compressive strength of filtering layer behind the repressed one-tenth half elliptic of double-layer stainless steel corrugated screens pipe, changed stress, improved the critical external compressive resistance ability; Because be the some contact between stainless steel ripple filter screen tube body and the described standard oil recovery central tube surface, ripple high spot space is big, has improved permeability significantly; Because the mesh aperture of stainless steel ripple filter screen pipe is 0.06-0.40mm, the mesh aperture of two-layer compound soldering stainless steel corrugated screens pipe is adjustable to 0.03-0.20mm, and sand control precision can be adjusted to adapt to the sand control precision requirement of different oil wells by the actual state of oil well.
Claims (5)
1, a kind of stainless steel ripple sand screen; comprise standard oil recovery central tube, standard oil pipe collar catcher; it is characterized in that outside described standard oil recovery central tube, being with stainless steel wave line filter screen pipe; between these stainless steel ripple filter screen pipe two ends and described standard oil recovery central tube, adopt and be tightly connected; between this stainless steel ripple filter screen tube body and described standard oil recovery central tube surface, be the some contact; this stainless steel ripple filter screen pipe is with the protection steel mesh outward, and the protection steel mesh at adjacent place, stainless steel ripple filter screen junction surface is with joint ring.
2, stainless steel ripple sand screen according to claim 1 is characterized in that described stainless steel ripple filter screen pipe is longitudinal ripple filter screen pipe or axial corrugated screens pipe.
3, stainless steel ripple sand screen according to claim 1 is characterized in that described stainless steel ripple filter screen pipe is a two-layer compound soldering stainless steel corrugated screens pipe.
4, according to claim 1 or 3 described stainless steel ripple sand screens, it is characterized in that the thickness of filter bed of described stainless steel ripple filter screen pipe is 0.33-0.50mm, described two-layer compound soldering stainless steel corrugated screens tube thickness is 0.66-1.00mm.
5, stainless steel ripple sand screen according to claim 3 is characterized in that the mesh aperture of described stainless steel ripple filter screen pipe is 0.06-0.40mm, and the mesh aperture of described two-layer compound soldering stainless steel corrugated screens pipe is 0.03-0.20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200115378U CN201170086Y (en) | 2008-03-12 | 2008-03-12 | Stainless steel corrugated filter sand tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200115378U CN201170086Y (en) | 2008-03-12 | 2008-03-12 | Stainless steel corrugated filter sand tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170086Y true CN201170086Y (en) | 2008-12-24 |
Family
ID=40209139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200115378U Expired - Fee Related CN201170086Y (en) | 2008-03-12 | 2008-03-12 | Stainless steel corrugated filter sand tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170086Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494278A (en) * | 2021-08-12 | 2021-10-12 | 大安鸿源管业有限公司 | Large-flow-rate high-efficiency underground oil extraction sand prevention device |
-
2008
- 2008-03-12 CN CNU2008200115378U patent/CN201170086Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494278A (en) * | 2021-08-12 | 2021-10-12 | 大安鸿源管业有限公司 | Large-flow-rate high-efficiency underground oil extraction sand prevention device |
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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: 20081224 Termination date: 20100312 |