CN101260798A - Oil well oil conduit sand-baffling device - Google Patents
Oil well oil conduit sand-baffling device Download PDFInfo
- Publication number
- CN101260798A CN101260798A CNA2008101046100A CN200810104610A CN101260798A CN 101260798 A CN101260798 A CN 101260798A CN A2008101046100 A CNA2008101046100 A CN A2008101046100A CN 200810104610 A CN200810104610 A CN 200810104610A CN 101260798 A CN101260798 A CN 101260798A
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- sand
- oil well
- tube
- vitta
- calking
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Abstract
The invention relates to the petroleum machinery technical field, in particular to a sand retaining device for an oil well vitta. In order to solve the problems of clogging and abrasion caused by sand grains in an oil well flowing into a pitshaft, the invention provides a sand retaining device for the oil well vitta, which comprises a variable button joint and a sand retaining tube; the sand retaining tube is a high-density punched sieve tube which consists of a base tube, a protective sleeve and a supporting ring; the protective sleeve is fixed on the base tube by the supporting ring; and the high-density punched sieve tube is fixed on the vitta by the variable button joint. The invention is mounted in the vitta of the oil well; when well liquid containing sands in the vitta passes through a sand-retaining nipple, the sand grains are retained by the high-density punched sieve tube and can not enter the tube; a sand-retaining ring of a liquid inlet of the high-density punched sieve tube can ensure that the maximal overcurrent in the vitta and the sand-retaining effect.
Description
Technical field
The present invention relates to the petroleum machinery technical field, be specifically related to a kind of oil well oil conduit sand-baffling device.
Background technology
In the Oilfield developing process, because loose sand formation cementation intensity is low or the influence of pressing crack construction, sand grains can flow into pit shaft along with formation fluid, causes pit shaft obstruction, down-hole string, instrument and ground installation wearing and tearing aggravation, and causes the oil well reduce or stop production.And in some pipes or also must carry out sand block outside the pump and influence its operate as normal to prevent sand grains from entering, when in horizontal well, adopting sand bucket to drag for sand, just must the sand block pipe nipple be installed before piston, block from the shaft bottom and draw up next sand, guarantee the operate as normal of piston.
Summary of the invention
Flow into obstruction, the wear problem that pit shaft brings in order to solve sand grains in the oil well, the invention provides a kind of oil well oil conduit sand-baffling device, can solve sand block in the pipe, make sand grains can not rise in the pump and influence the operate as normal of pump along with well liquid.
The technical solution used in the present invention is: a kind of oil well oil conduit sand-baffling device, comprise: become snapping head, sand retention pipe, its special character is: described sand retention pipe is highly dense calking screen casing, described highly dense calking screen casing is made up of parent tube, protective sleeve, support ring, and protective sleeve is fixed on the parent tube by support ring; Described change snapping head is fixed on highly dense calking screen casing on the oil pipe.
The other end of above-mentioned highly dense calking screen casing is provided with sand stop ring.
Above-mentioned sand stop ring is the plate of two band circular holes, is provided with three layers of fine groove net between two plates, and whole sand stop ring is welded on the parent tube inlet of highly dense calking screen casing.
The beneficial effect that technical scheme provided by the invention produces is: in the oil pipe of oil well, the present invention is installed,
When making well liquid that oil pipe includes sand by the sand block pipe nipple, sand grains can be blocked by highly dense calking screen casing and can't enter in the pipe; The sand stop ring of the inlet of highly dense calking screen casing parent tube also can play the sand block effect when can guarantee in the oil pipe maximum overcurrent.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is the longitudinal sectional drawing of sand stop ring among the present invention;
Fig. 3 is the cross-sectional view of sand stop ring among the present invention.
The specific embodiment
Below in conjunction with Figure of description explanation the specific embodiment of the present invention.
Referring to Fig. 1, of the present inventionly provide a kind of oil well oil conduit sand-baffling device, comprising: become snapping head 1, sand retention pipe, described sand retention pipe is highly dense calking screen casing, described highly dense calking screen casing is made up of parent tube 2, protective sleeve 3, support ring 4, and protective sleeve 3 is fixed on the parent tube 2 by support ring 4; Sand stop ring 5 is welded on parent tube 2 inlets of highly dense calking screen casing; Described change snapping head 1 is fixed on highly dense calking screen casing on the oil pipe 6, and the well liquid that includes sand when oil pipe is during by the sand block pipe nipple, and sand grains can be blocked and can't enter in the pipe by highly dense calking screen casing.Become snapping head 1 and mainly form by the standard box of three kinds of different models, a termination oil pipe 6 and highly dense calking screen casing, the other end adopts the oil pipe that becomes the snapping different model, and the tubing string of three kinds of different tube diameters is effectively coupled together.
Referring to Fig. 2 and Fig. 3, described sand stop ring 5 comprises between 7, two plates of plate of two band circular holes and is provided with three layers of fine groove net 8, also can play the sand block effect when guaranteeing in the oil pipe maximum overcurrent.
Should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1, a kind of oil well oil conduit sand-baffling device comprises: become snapping head, sand retention pipe, it is characterized in that: described sand retention pipe is highly dense calking screen casing, and described highly dense calking screen casing is made up of parent tube, protective sleeve, support ring, and protective sleeve is fixed on the parent tube by support ring; Described change snapping head is fixed on highly dense calking screen casing on the oil pipe.
2, a kind of oil well oil conduit sand-baffling device according to claim 1, it is characterized in that: the other end of described highly dense calking screen casing is provided with sand stop ring.
3, a kind of oil well oil conduit sand-baffling device according to claim 2 is characterized in that: described sand stop ring is the plate of two band circular holes, is provided with three layers of fine groove net between two plates, and whole sand stop ring is welded on the parent tube inlet of highly dense calking screen casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101046100A CN101260798A (en) | 2008-04-22 | 2008-04-22 | Oil well oil conduit sand-baffling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101046100A CN101260798A (en) | 2008-04-22 | 2008-04-22 | Oil well oil conduit sand-baffling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101260798A true CN101260798A (en) | 2008-09-10 |
Family
ID=39961456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101046100A Pending CN101260798A (en) | 2008-04-22 | 2008-04-22 | Oil well oil conduit sand-baffling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101260798A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494276A (en) * | 2020-03-18 | 2021-10-12 | 中国石油天然气股份有限公司 | Washable blockage-removing sand filtering device and blockage-removing sand filtering tubular column |
-
2008
- 2008-04-22 CN CNA2008101046100A patent/CN101260798A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494276A (en) * | 2020-03-18 | 2021-10-12 | 中国石油天然气股份有限公司 | Washable blockage-removing sand filtering device and blockage-removing sand filtering tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20080910 |