CN2809209Y - Anti-corrosion sand-filtering screen pipe with inner lining - Google Patents

Abstract

The utility model relates to an anti-corrosion sand-filtering screen pipe with an inner lining, which mainly solves the problem that the existing kerf screen pipe has poorer corrosion resistance and intensity and bad sand filtering effect. The utility model is characterized in that the pipe wall of a pipe body (1) is provided with strip-shaped sand filtering holes (2) forming staggered arrangement, and a stainless steel screen net (3) is arranged on the inner wall of the pipe body (1) in a lining way. The anti-corrosion sand-filtering screen pipe with an inner lining has the characteristics of favorable corrosion resistance, large strength and favorable sand filtering effect.

Description

Add metafiltration sand sieve pipe in the anticorrosion

Technical field:

The utility model relates to and adds metafiltration sand sieve pipe in down-hole oil production instrument, the especially anticorrosion used in the oil recovery field, oil field.

Background technology:

In the oil recovery process of oil field, in order to prevent that silt from entering in the flow string, screen casing is important protection tool, be usually used in completion or oil recovery sand control in advance, at present using more screen casing at the oil recovery sand control is the slot steel pipe, and this screen casing corrosion resistance and intensity in use is relatively poor, and the filter sand effect is also bad, application life is short, needs often to change.

The utility model content:

In order to overcome existing cutting seam sieve tube corrosion resistance and intensity is relatively poor, the filter sand effect is bad deficiency, the utility model provides and adds metafiltration sand sieve pipe in a kind of anticorrosion, adds metafiltration sand sieve pipe in this anticorrosion and has good corrosion resistance, intensity and reach the filter sand good effectiveness greatly.

The technical solution of the utility model is: add metafiltration sand sieve pipe in this anticorrosion and comprise body, have staggered bar shaped filter sand hole on the tube wall of body, inboard wall of tube body is lined with stainless steel mesh.

The width in above-mentioned filter sand hole is 1mm.

The utlity model has following beneficial effect: owing to take such scheme, have staggered bar shaped filter sand hole on the tube wall of body, increased the tensile strength of body, inboard wall of tube body is lined with stainless steel mesh, and filter sand is effective, good corrosion resistance.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model.

1-body among the figure, 2-filter sand hole, 3-stainless steel mesh.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By shown in Figure 1, add metafiltration sand sieve pipe in this anticorrosion and comprise body 1, have staggered bar shaped filter sand hole 2 on the tube wall of body 1, increased the tensile strength of body 1, the width in filter sand hole 2 is 1mm, and body 1 inwall is lined with stainless steel mesh 3, filter sand is effective, good corrosion resistance, long service life has been avoided frequent replacing.

Claims (2)

1, add metafiltration sand sieve pipe in a kind of anticorrosion, comprise body (1), it is characterized in that: have staggered bar shaped filter sand hole (2) on the tube wall of body (1), body (1) inwall is lined with stainless steel mesh (3).

2, add metafiltration sand sieve pipe in the anticorrosion according to claim 1, it is characterized in that: the width of filter sand hole (2) is 1mm.

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