CN202467790U - Detachable wellhead sand taking device for oil well - Google Patents
Detachable wellhead sand taking device for oil well Download PDFInfo
- Publication number
- CN202467790U CN202467790U CN 201220098851 CN201220098851U CN202467790U CN 202467790 U CN202467790 U CN 202467790U CN 201220098851 CN201220098851 CN 201220098851 CN 201220098851 U CN201220098851 U CN 201220098851U CN 202467790 U CN202467790 U CN 202467790U
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- shell
- oil nozzle
- oil
- sand
- filter screen
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Abstract
The utility model discloses a detachable wellhead sand taking device for an oil well, and relates to a sampling and sand preventing device for oilfield operation. The sand taking device comprises an oil nozzle; external threads are arranged at one end of the oil nozzle; oil nozzle bosses are arranged in the radial direction on the periphery of the middle part of the oil nozzle; a shell is sleeved outside the oil nozzle bosses; shell bosses are arranged at one end of the shell; the shell bosses are arranged between the threads of the oil nozzle and the oil nozzle bosses; the shell is provided with a plurality of through holes; an annular filter screen is sleeved in the shell; and the other end of the shell is detachably connected with a gland. The sand taking device has the advantages that oil flows out of the oil nozzle, is filtered through the filter screen and then flows out of the through holes of the shell; sand is discovered in time by replacing the filter screen with different meshes, and the filter screen is protected through the shell; the sand taking device is easy and convenient to install; and the confusion in production is solved, the sand outlet oil well is accurately judged, and a good foundation is laid for the next operation.
Description
Technical field
The utility model relates to the sample circuit sand control installation of oil field operation.
Background technology
The part oilfield influences production because of sand production in oil at present, and phenomenons such as sand holddown, sand plug flow process often take place.The normal measure of adopting is that lift pipe string, lower tubular column are visited the sand face, and finding has a large amount of sand could confirm that this well shakes out.And have the part oil well low because of sand content, and the sand grains diameter is smaller, and well head does not have tangible sand grains in normal productive process, does not find sand grains during the inspection pump yet; But in fact contain the less sand grains of diameter in the crude oil, and after these grits entering flow processs, As time goes on, fine sand produces deposition on stream; Liquid measure descends gradually, and flow velocity also decreases, and turns over the elbow blockage phenomenon on particularly overhead on stream; Cause the flow process dry-pressing to raise, the oil well load increases, and has serious consequences for the crude oil production process; Causing inspection pump probability to increase simultaneously, increased the flow process maintenance workload, the power cost of equipment is also increasing.Improve cost of crude oil production, increased the oil extraction difficulty again.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of prior art, and a kind of oil well detachable well head sand extractor that shakes out and the sand in the crude oil is filtered of judging is provided.
The purpose of the utility model is achieved in that oil well detachable well head sand extractor, comprises oil nozzle, and an end of oil nozzle is provided with external screw thread; The middle part outer periphery of oil nozzle is provided with the oil nozzle boss, and the oil nozzle boss is nested with shell outward, and an end of shell radially is provided with the shell boss; The shell boss is arranged on outside the screw thread and the oil nozzle between the oil nozzle boss of oil nozzle; Several through holes are set on the said shell, are nested with annular filter screen in the shell, the detachable connection gland of the other end of shell.
During installation, at first, the shell of sand extractor is installed on the oil nozzle; The shell of pushing down sand extractor with oil nozzle is inner, plays fixing effect, after shell has fixed; Send filter screen the inside of sand extractor to hand, externally, played the effect of sealing simultaneously again with the fixing filter screen of gland.All fixing used instruments are oil nozzle erecting tools of using always, and processing is used all more convenient.
Because the sand grains in the oil well varies, big sand grains is prone to find, and little sand grains is often got less than appearance because of filter screen is too rare; To this situation; Can gland be taken off, the filter screen of replaceable different reticular densities is to meet the oil well sampling and can change instructions for use at any time.
Oil well in process of production, well head has certain pressure, when in the filter screen sand grains being arranged, often inside and outside filter screen, produce pressure reduction, and filter screen density is big more, its bearing capacity is more little.So adopt shell to come bearing pressure in the outside of filter screen, the protection filter screen is not destroyed, and bores around on shell and open some apertures, can guarantee crude oil Channel Group, has guaranteed the safe and reliable of filter screen again.
The beneficial effect of the utility model is: oil flows out in oil nozzle, behind strainer filtering, from the through hole of shell, flows out.Can the filter screen through changing different meshes in time find the phenomenon of shaking out, and through shell protection filter screen, installs simple and conveniently, solved the puzzlement in the production, accurately judged sand well, for further work is laid a good foundation.Designed screw thread at an end of device and linked to each other, can make the whole device volume smaller, installed and inside that the oil nozzle of well head overlaps, made things convenient for oil well to get sand with internal thread in the oil nozzle cover.The filter screen of sand extractor can adopt the metal screen of the order number that varies in size, and installs in the enclosure, and filter screen is had fixation.
For the ease of the gland on the shell is pulled down the replacing filter screen, gland is connected with outer casing screw.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
The specific embodiment
As shown in Figure 1, for oil well detachable well head sand extractor, comprise oil nozzle 5; One end of oil nozzle 5 is provided with external screw thread 5-1, and the middle part outer periphery of oil nozzle 5 is provided with oil nozzle boss 5-2, and oil nozzle boss 5-2 is nested with shell 1 outward; One end of shell 1 radially is provided with shell boss 1-1, and shell boss 1-1 is arranged on outside the screw thread 5-1 and the oil nozzle 5 between the oil nozzle boss 5-2 of oil nozzle 5, and several through holes 2 are set on the shell 1; Be nested with annular filter screen 3 in the shell 1, the other end of shell 1 gland 4 that is threaded.
Claims (2)
1. oil well detachable well head sand extractor, it is characterized in that: comprise oil nozzle, an end of oil nozzle is provided with external screw thread; The middle part outer periphery of oil nozzle is provided with the oil nozzle boss, and the oil nozzle boss is nested with shell outward, and an end of shell radially is provided with the shell boss; The shell boss is arranged on outside the screw thread and the oil nozzle between the oil nozzle boss of oil nozzle; Several through holes are set on the said shell, are nested with annular filter screen in the shell, the detachable connection gland of the other end of shell.
2. oil well detachable well head sand extractor according to claim 1, it is characterized in that: said gland is connected with outer casing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220098851 CN202467790U (en) | 2012-03-16 | 2012-03-16 | Detachable wellhead sand taking device for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220098851 CN202467790U (en) | 2012-03-16 | 2012-03-16 | Detachable wellhead sand taking device for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202467790U true CN202467790U (en) | 2012-10-03 |
Family
ID=46915955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220098851 Expired - Fee Related CN202467790U (en) | 2012-03-16 | 2012-03-16 | Detachable wellhead sand taking device for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202467790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845947A (en) * | 2012-11-29 | 2014-06-11 | 大连凯泓科技有限公司 | Valve with adjustable filter screen mesh size |
-
2012
- 2012-03-16 CN CN 201220098851 patent/CN202467790U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845947A (en) * | 2012-11-29 | 2014-06-11 | 大连凯泓科技有限公司 | Valve with adjustable filter screen mesh size |
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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: 20121003 Termination date: 20180316 |