CN201396124Y - Punched slot screen pipe - Google Patents
Punched slot screen pipe Download PDFInfo
- Publication number
- CN201396124Y CN201396124Y CN2009201078421U CN200920107842U CN201396124Y CN 201396124 Y CN201396124 Y CN 201396124Y CN 2009201078421 U CN2009201078421 U CN 2009201078421U CN 200920107842 U CN200920107842 U CN 200920107842U CN 201396124 Y CN201396124 Y CN 201396124Y
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- China
- Prior art keywords
- calking
- parent tube
- utility
- face
- model
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- Expired - Fee Related
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Abstract
The utility model provides a punched slot screen pipe, which comprises a base pipe, wherein a punched slot filter sleeve is sleeved on the base pipe, two ends of the punched slot filter sleeve are provided with fixing ends, the punched slot filter is fixed on the base pipe via the fixing ends, and the thickness of each fixing end is equal to that of a body of the punched slot filter sleeve. The punched slot screen pipe utilizes structures of the fixing ends which can be directly connected with the base pipe, is reliable in connection and low in cost, and further can greatly reduce outer diameter of the punched slot screen pipe.
Description
Technical field
The utility model relates to the mechanical filter unit that is used for sand control in a kind of petroleum resources recovery process, relates in particular to a kind of calking screen casing.
Background technology
In oil and gas industry oil-gas reservoir resource exploitation field, shake out along with fluid migration produces in the pit shaft for preventing reservoir sand, and then oil production equipment and ground installation are caused damage, need take the measure of sand block filtrate.The mechanical device that is used for this purpose is called as screen casing.In recent years, a kind of calking screen casing had appearred in the petroleum industry, be mainly used in that sorting is good, at the bottom of the shale content, single reservoir, lithology comparatively loose in, the coarse sand granule reservoir, and in the less demanding oil well of output.
Traditional calking screen casing as shown in Figure 1, filtration net cover 3 is sleeved on the parent tube 1, two ends are fixed on the parent tube 1 by end ring 4.The structure of end ring 4 as shown in Figure 1, end ring 4 one ends are welded on the parent tube 1, the other end exceeds filtration net cover 3, and filtration net cover 3 is welded on the step surface below the end ring 4.This structure is owing to used end ring 4 two sides welded structures, not only increased cost of production, and the reliability that makes filtration net cover 3 be fixed on the parent tube 1 reduces greatly, in addition, owing to use end ring 4 this structures to fix filtration net cover 3, cause calking screen casing entire outer diameter to increase, this has just increased calking screen casing jammed possibility when going into the well, in case the generation stuck phenomenon can be brought heavy losses for following well operations.
The utility model content
The technical problems to be solved in the utility model provide a kind of simple in structure, reliability is high, and can not increase the calking screen casing of entire outer diameter.
In order to address the above problem, the utility model provides a kind of calking screen casing, comprise parent tube, on described parent tube, be set with calking and cross filter ruffle, described calking is crossed the filter ruffle two ends and is provided with fixed end, and be fixed on the described parent tube by described fixed end, the body thickness that described fixed end and described calking are crossed filter ruffle is suitable.
Preferably, described fixed end comprises that calking crosses the installation end face of filter ruffle and be used to support the pad of described installation end face between described installation end face and described parent tube.
Preferably, described pad is an annular, is sleeved on the described parent tube.
Preferably, described pad and described installation end face are structure as a whole.
The utlity model has following advantage:
1, the utility model adopts the fixed end structure, and this fixed end can directly link to each other with parent tube, connects reliably and with low cost, can also reduce the outside dimension of calking screen casing greatly.
2, the utility model adopts the form of pad, makes calking filter to be enclosed within fixing more smooth, attractive in appearance and reliable on the parent tube.
3, the utility model installation end face and pad integrated design that calking is crossed filter ruffle reduced cost, improved reliability.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Fig. 1 shows traditional calking screen casing sectional view structural representation;
Fig. 2 shows first kind of embodiment sectional view of a kind of calking screen casing of the utility model structural representation;
Fig. 3 shows second kind of embodiment sectional view of a kind of calking screen casing of the utility model structural representation.
The specific embodiment
As Fig. 2, shown in Figure 3, the utility model provides a kind of calking screen casing, comprise parent tube 1, on described parent tube 1, be set with calking and cross filter ruffle 2, described calking is crossed filter ruffle 2 two ends and is provided with fixed end 21, and be fixed on the described parent tube 1 by described fixed end 21, fixed end 21 is suitable with body 22 thickness that calking is crossed filter ruffle 2.
The utility model adopts fixed end 21 structures, and this fixed end 21 can directly link to each other with parent tube 1, connects reliably and with low cost, can also reduce the outside dimension of calking screen casing greatly.
Described fixed end 21 comprises that calking crosses the installation end face 211 of filter ruffle 2 and the pad 212 that is used to support described installation end face 211 between end face 211 and the parent tube 1 is being installed.Described pad 212 is an annular, is sleeved on the described parent tube 1.Described pad 212 is structure as a whole with described installation end face 211.
Fixed end of the present utility model 21 adopts the form of pads 212, makes calking cross filter ruffle 2 fixing more smooth, attractive in appearance and reliable on parent tube.Installation end face 211 and pad 212 integrated designs that the utility model is crossed filter ruffle with calking have reduced cost, have improved reliability.
Below the utility model is elaborated:
The utility model as shown in Figure 2, first kind of embodiment adopts pad 212 and the form that end face 211 combines is installed, it is smooth reliable that end face 211 is installed, combine the fixed end 21 that the back forms with pad 212, cross with calking that external diameter all is consistent in filter ruffle 2 main parts, this mode is not only attractive in appearance but also reliable, has reduced the outside dimension of calking screen casing greatly.
The utility model as shown in Figure 3, second kind of embodiment with pad 212 with end face 211 integrated designs are installed, machine-shaping is fixed end 21 as the one one piece, and is this simple and reliable for structure, and greatly reduce and produce and installation cost.
The third embodiment of the utility model to attractive in appearance when less demanding, adopt and the mode that end face 211 is fixed on the parent tube 1 directly will be installed carry out, and end face 211 is installed so directly as fixed end 21 uses.
The 4th kind of embodiment of the utility model installs end face 211 employings and crosses the mode that filter ruffle 2 main bodys close up gradually along calking, finally is fixed on the parent tube 1.
In various embodiments of the present utility model, the fixed end 21 that calking is crossed filter ruffle 2 is fixed on that the most simple and reliable method is to adopt the method for welding on the parent tube 1.Also can adopt other modes in addition, as method such as be threaded.
The utility model is evenly distributed with the eyelet that diameter is 6～15mm on the parent tube 1, and calking is crossed filter ruffle 2 and covered parent tube 1 eyelet part fully.Calking is crossed filter ruffle 2 and is adopted ribbon spiral to be welded, and does not have the punching press slit in the 3～20mm of spiral weld both sides.Calking is crossed and is placed a pad 212 between the installation end face 211 of filter ruffle 2 and the parent tube 1 and form fixed ends 21, end face 211, pad 212 and parent tube 1 is installed by being welded into one; Pad 212 is to use stainless steel belt, by being processed into helically welded tube or longitudinally-welded pipe, cutting off and to form again.
In sum; it below only is preferred embodiment of the present utility model; be not to be used to limit protection domain of the present utility model; therefore; all any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1, a kind of calking screen casing, it is characterized in that: comprise parent tube (1), on described parent tube (1), be set with calking and cross filter ruffle (2), described calking is crossed filter ruffle (2) two ends and is provided with fixed end (21), and be fixed on the described parent tube (1) by described fixed end (21), described fixed end (21) is suitable with body (22) thickness that described calking is crossed filter ruffle (2).
2, calking screen casing as claimed in claim 1 is characterized in that: described fixed end (21) comprise described calking cross the installation end face (211) of filter ruffle (2) and be positioned at described installation end face (211) and described parent tube (1) between be used to support the pad (212) of described installation end face (211).
3, calking screen casing as claimed in claim 2 is characterized in that: described pad (21) is sleeved on the described parent tube (1) for annular.
4, calking screen casing as claimed in claim 2 is characterized in that: described pad (212) is structure as a whole with described installation end face (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201078421U CN201396124Y (en) | 2009-05-05 | 2009-05-05 | Punched slot screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201078421U CN201396124Y (en) | 2009-05-05 | 2009-05-05 | Punched slot screen pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396124Y true CN201396124Y (en) | 2010-02-03 |
Family
ID=41618630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201078421U Expired - Fee Related CN201396124Y (en) | 2009-05-05 | 2009-05-05 | Punched slot screen pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396124Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457626A (en) * | 2017-12-28 | 2018-08-28 | 中国石油天然气集团公司 | A kind of dissolution type sand bridge screen casing |
-
2009
- 2009-05-05 CN CN2009201078421U patent/CN201396124Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457626A (en) * | 2017-12-28 | 2018-08-28 | 中国石油天然气集团公司 | A kind of dissolution type sand bridge screen casing |
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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: 20100203 Termination date: 20170505 |