CN2931778Y - Multifunctional sand protection pipe of oil and gas well - Google Patents
Multifunctional sand protection pipe of oil and gas well Download PDFInfo
- Publication number
- CN2931778Y CN2931778Y CN 200620080288 CN200620080288U CN2931778Y CN 2931778 Y CN2931778 Y CN 2931778Y CN 200620080288 CN200620080288 CN 200620080288 CN 200620080288 U CN200620080288 U CN 200620080288U CN 2931778 Y CN2931778 Y CN 2931778Y
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- CN
- China
- Prior art keywords
- gas well
- sand
- sandpipe
- parent tube
- oil gas
- 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 multifunctional sand control tube in an oil well and comprises a coupling, a basic tube, a sand filtering layer, a wrapped protective sheath, an upper pressure hoop, a lower pressure hoop, and a centralizer, wherein the wrapped protective sheath with the upper pressure hoop and the lower pressure hoop respectively arranged on the upper and the lower ends is arranged outside the sand filtering layer, and the coupling is connected with an end of the basic tube. The utility model has the advantages of erosion resistance and dual sand control parclose, and can be widely utilized in a sand control processing well.
Description
One, technical field
The utility model relates to oil gas well anti-sand process technology, and particularly a kind of multifunctional oil gas well is prevented sandpipe.
Two, background technology
At present, in loose sand oil accumulation oil gas well sand control technique, the gravel filling sand prevention technology relies on advantages such as its wide adaptability, period of validity length for a long time in occupation of the status of sand control tap, becomes a leading queen of flowers.Yet, because the complexity of reservoir and hole condition changes, special increasing along with complex structural wells such as high angle hole, horizontal well, sidetracked holes, proposed a new difficult problem for the gravel pack technology, Here it is: 1. gravel pack is unreal, because some areas lose filling bed, currently used wrapping wire pipe can't play the sand control effect, thereby causes sand control to lose efficacy.2. in anti-sandpipe sand control technique,, cause the shortening in application life of anti-sandpipe because perforate on the sand control pepe covering that is adopted makes formation fluid over against the erosion of filter sand body.
Three, summary of the invention
The purpose of this utility model provides the anti-sandpipe of a kind of improved multifunctional oil gas well, and shortcoming or deficiency that it overcomes effectively or avoids existing in the above-mentioned prior art improve the gravel filling sand prevention effect effectively.
Multifunctional oil gas well described in the utility model is prevented sandpipe; comprise box cupling, parent tube, filter sand layer, wrapping wire protective sleeve, crimp and centralizer up and down, be installed on the filter sand layer on the described parent tube, the filter sand layer is installed on the wrapping wire protective sleeve outward; upper and lower side is installed on crimp up and down, and parent tube one end is connected with box cupling.
Wherein, described wrapping wire protective sleeve is that the slit is the bobbins of 1-5mm.Described parent tube bottom is installed on centralizer.
The utility model has following advantage compared with prior art:
1, adopt bobbins as outer jointing jacket, form the first road sand block barrier, the filter sand body is the second road barrier, eliminates the harmful effect that causes owing to gravel pack is unreal;
2, adopt bobbins as outer jointing jacket, increased the seepage area of anti-sandpipe, reduced the erosion attack effect of fluid, prolong the application life of anti-sandpipe, improve sand controlling result;
3, adopt the centralizer of polyethylene material to carry out provisional card and hold up, both guaranteed that anti-sandpipe is lowered to smoothly, safety, be convenient to the tubing string later stage again to salvage processing.
4, be suitable for extensively, can be widely used in gravel filling sand prevention well, common sand proof well, vertical sand proof well, level and inclined shaft sand proof well.
Four, description of drawings
Accompanying drawing is the utility model structural representation.
Five, the specific embodiment
Consult accompanying drawing; a kind of multifunctional oil gas well is prevented sandpipe; comprise box cupling 1, parent tube 2, filter sand layer 6, wrapping wire protective sleeve 4, crimp 3,7 and centralizer 8 up and down; be installed on filter sand layer 6 on the parent tube 2; the filter sand layer 6 outer wrapping wire protective sleeve 4 that is installed on; upper and lower side is installed on crimp 3,7 up and down, and parent tube 2 one ends are connected with box cupling 1.
Wrapping wire protective sleeve 4 is the bobbins of 1-5mm (being expressed as 3mm among the figure) for the slit.Parent tube 2 bottoms are installed on centralizer.Parent tube 2 is provided with parent tube hole 5.
Claims (3)
1, the anti-sandpipe of a kind of multifunctional oil gas well; comprise box cupling, parent tube, filter sand layer, wrapping wire protective sleeve, crimp and centralizer up and down, it is characterized in that being installed on the filter sand layer on the described parent tube that filter sand layer is installed on the wrapping wire protective sleeve outward; upper and lower side is installed on crimp up and down, and parent tube one end is connected with box cupling.
2, the anti-sandpipe of multifunctional oil gas well according to claim 1 is characterized in that described wrapping wire protective sleeve is that the slit is the bobbins of 1-5mm.
3, the anti-sandpipe of multifunctional oil gas well according to claim 1 and 2 is characterized in that described parent tube bottom is installed on centralizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080288 CN2931778Y (en) | 2006-01-12 | 2006-01-12 | Multifunctional sand protection pipe of oil and gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080288 CN2931778Y (en) | 2006-01-12 | 2006-01-12 | Multifunctional sand protection pipe of oil and gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2931778Y true CN2931778Y (en) | 2007-08-08 |
Family
ID=38348278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620080288 Expired - Fee Related CN2931778Y (en) | 2006-01-12 | 2006-01-12 | Multifunctional sand protection pipe of oil and gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2931778Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222896A (en) * | 2018-01-17 | 2018-06-29 | 中国五冶集团有限公司 | For the halogen mining well structure of the salt pan of drift sand formation containing multilayer geology |
-
2006
- 2006-01-12 CN CN 200620080288 patent/CN2931778Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222896A (en) * | 2018-01-17 | 2018-06-29 | 中国五冶集团有限公司 | For the halogen mining well structure of the salt pan of drift sand formation containing multilayer geology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |