CN2744829Y - Sand prevention and scale control device - Google Patents
Sand prevention and scale control device Download PDFInfo
- Publication number
- CN2744829Y CN2744829Y CN 200420075017 CN200420075017U CN2744829Y CN 2744829 Y CN2744829 Y CN 2744829Y CN 200420075017 CN200420075017 CN 200420075017 CN 200420075017 U CN200420075017 U CN 200420075017U CN 2744829 Y CN2744829 Y CN 2744829Y
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- CN
- China
- Prior art keywords
- sand
- shaft
- sand prevention
- utility
- control device
- 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 sand prevention and scale control device which is composed of an upper joint, a shaft, a casing and a suction inlet. A sand prevention pipe is arranged in the inner cavity of the casing, the upper end of the sand prevention pipe is connected with the internal screw thread of the upper joint, and the lower end is connected with the screw thread of a press plate which is connected with the screw thread of the suction inlet. A shaft protection sleeve is arranged between the shaft and the upper joint, and a shaft sleeve is arranged between the shaft and the press plate. The shaft at the position of the inner cavity of the sand prevention pipe is provided with a magnetization scale control device. The utility model can filter coarse sand in well liquid which enters an electric submersible pump and can magnetize mineral substance with easy scaling to weaken the scaling tendency of the mineral substance and avoid blocking an electric submersible centrifugal pump caused by the scaling in a sand filtering pipe. Therefore, the utility model has the functions of sand prevention and descaling and prolongs pump inspection period.
Description
Technical field
The utility model relates to a kind of sand control scale-proof apparatus, is applicable in the big electric submersible pump producing well of salinity height, sand production rate.
Technical background
Oil well well liquid sand content height easily causes Electric Submersible Pump Unit heavy wear, block and phenomenon such as pump card takes place; Salinity Gao Zeyi makes the fouling of electrical submersible pump assembly and makes accessory or unit damage and aging in the oil well well liquid, has shortened the working life of electrical submersible pump assembly.The scene only is to take anti-sandpipe sand control at the big situation of sand production amount at present, promptly carries out filter sand before well liquid enters centrifugal pump, adds packer in the electric submersible pump motor lower portion, makes the well liquid through filter sand enter into the electric submersible pump annular space.This sand control Manifold technology exists sand screen and easily stops up, in a single day damages with the matching used packer of anti-sandpipe, then lose the shortcoming of sand control effect, and anti-sandpipe does not have scale control treatments.
Summary of the invention
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of sand control scale-proof apparatus is provided.
The purpose of this utility model is achieved in that the sand control scale-proof apparatus is made up of top connection, axle, housing, intake, and top connection, housing, intake are threaded successively, are welded with anti-down between them; Anti-sandpipe is contained in the housing inner chamber, and its upper end is connected with the top connection internal thread, and the lower end is threaded with pressing plate, and pressing plate is threaded with intake, is equipped with between protective shaft sleeve and the pressing plate between axle and the top connection axle sleeve is housed; Axle is provided with the magnetic antiscale device on the inner chamber position of anti-sandpipe.
The utility model combines sand control and antiscale, be one with the eliminator serial connection of electric submersible pump, suction passage as whole electric submersible pump extract, make the well liquid medium coarse sand filtering that will enter electric submersible pump, sand content reduces, and makes the mineral matter magnetization of easy fouling simultaneously, slacken the mineral matter scaling tendency, can avoid stopping up electric submersible centrifugal pump, reach the effect of sand control, scale removal, prolong pump detection period because of the sand screen fouling.
Description of drawings
Fig. 1: the utility model structural representation;
Among the figure: 1-top connection, 2-axle, 3-protective shaft sleeve, 4-housing, the anti-sandpipe of 5-, 6-magnetic antiscale device, 7-pressing plate, 8-axle sleeve, anti-down of 9-, 10-intake.
The specific embodiment
As shown in Figure 1, the sand control scale-proof apparatus is made up of top connection 1, axle 2, housing 4, intake 10, and top connection 1, housing 4, intake 10 are threaded successively, are welded with anti-down 9 between them, prevent reversing; Anti-sandpipe 5 is contained in housing 4 inner chambers, and its upper end is connected with top connection 1 internal thread, and the lower end is threaded with pressing plate 7, and pressing plate 7 is threaded with suction 10, spools 2 and top connection 1 between be equipped with protective shaft sleeve 3, and pressing plate 7 between axle sleeve 8 is housed; Axle 2 is provided with magnetic antiscale device 6 on the inner chamber position of anti-sandpipe 5.
During use; protector in this instrument and the electric submersible pump extract system is linked; in electric submersible pump extract system, drive its axle 2 under the high speed of the submersible electric machine with oil axle rotation and rotate, the multistage high gradient field that this moment, magnetic antiscale device 6 can produce along the shaft section radiation profiles.Well liquid enters in the sand control scale-proof apparatus chamber by intake 10 under the effect of pump external and internal pressure; After entering in the sand control scale-proof apparatus chamber, passes through well liquid anti-sandpipe 5, being covered with specification on the anti-sandpipe 5 is 100 purpose stainless steel metal filter screens, filtration by filter screen makes diameter in the well liquid, and big (＞0.1mm) sand grains is filtered, thereby significantly reduce the content of sand grains in the well liquid, played the effect of falling the sand sand control; Well liquid in sand control scale-proof apparatus chamber, and by preventing that the well liquid that enters magnetic antiscale device 6 after sandpipe filters all is subjected to the high-intensity magnetic effect, along being able to whole magnetization in the multistage high gradient field of shaft section radiation profiles, the mineral matter molecular structure of easy fouling is changed, destroy the trend of its fouling, reached the purpose of antiscale.Well liquid through the passage by top connection 1 after the above-mentioned sand control antiscale twice PROCESS FOR TREATMENT enter again with this joining gs-oil separator chamber, sand control scale-proof apparatus upper end in, enter electric submersible pump extract system at last, reach the effect of sand control, scale removal.
Claims (1)
1, a kind of sand control scale-proof apparatus is characterized in that: it is made up of top connection (1), axle (2), housing (4), intake (10), and top connection (1), housing (4), intake (10) are threaded successively, are welded with anti-down (9) between them; Anti-sandpipe (5) is contained in housing (4) inner chamber, its upper end is connected with top connection (1) internal thread, the lower end is threaded with pressing plate (7), and pressing plate (7) is threaded with intake (10), be equipped with between axle (2) and the top connection (1) protective shaft sleeve (3), and pressing plate (7) between axle sleeve (8) is housed; Axle (2) is provided with magnetic antiscale device (6) on the inner chamber position of anti-sandpipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075017 CN2744829Y (en) | 2004-10-30 | 2004-10-30 | Sand prevention and scale control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075017 CN2744829Y (en) | 2004-10-30 | 2004-10-30 | Sand prevention and scale control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744829Y true CN2744829Y (en) | 2005-12-07 |
Family
ID=35579610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075017 Expired - Fee Related CN2744829Y (en) | 2004-10-30 | 2004-10-30 | Sand prevention and scale control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744829Y (en) |
-
2004
- 2004-10-30 CN CN 200420075017 patent/CN2744829Y/en not_active Expired - Fee Related
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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 |