CN203669807U - Oil production sand-control unplugging device - Google Patents
Oil production sand-control unplugging device Download PDFInfo
- Publication number
- CN203669807U CN203669807U CN201420045665.XU CN201420045665U CN203669807U CN 203669807 U CN203669807 U CN 203669807U CN 201420045665 U CN201420045665 U CN 201420045665U CN 203669807 U CN203669807 U CN 203669807U
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- oil
- tube
- unplugging
- nozzle
- control
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Abstract
The utility model relates to an oil production sand-control unplugging device. According to the technical scheme, the oil production sand-control unplugging device is characterized in that an oil tube is arranged inside a casing, a tail tube and a screen tube are connected to the bottom of the oil tube in sequence, an upper connector is connected to the screen tube and connected with a lower connector through a reducing piston, the lower connector is connected with a taper nozzle through a damper, a non-return conducting valve is arranged inside the upper connector, a reverse conducting valve is arranged inside the lower connector, and the taper nozzle is provided with spouts. The oil production sand-control unplugging device has the advantages that recovery efficiency of an oil well can be improved effectively, yield of the oil well is increased, secondary pollution of the oil well is decreased, bottom unplugging effect of the oil well is improved by the use of the taper nozzle, the nozzle is prevented from being jammed, unplugging effect is guaranteed, an electric heating line is arranged between a center tube and a nozzle block, spray water in the center tube can be heated by the electric heating line, spraying effect is good, and effective unplugging is achieved.
Description
Technical field
The utility model relates to a kind of oil production equipment, particularly a kind of oil extraction sand prevention plug-removing device.
Background technology
In the process of oil field development, the pollution of various impurity to oil reservoir, fouling and the wax deposition etc. on stratum itself that cause due to the reason such as drilling well, pressure break, often make reservoir permeability reduce, oil well output is declined, for low-porosity hyposmosis or ultra-low penetration rock stratum, production declining is even more serious especially.Crude oil is at down-hole thickness, causes down-hole to stop up, and conventional method is oil well acidation to be removed to these stop up, but can bring secondary pollution to oil reservoir again when de-plugging in this way.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of oil extraction sand prevention plug-removing device is provided, and avoids causing and blocks shower nozzle, guarantees plugging removal effect, avoids secondary pollution.
Its technical scheme is: comprise sleeve pipe, oil pipe, tail pipe, screen casing, top connection, lower contact, reducing piston, forward conduction valve, reverse-conducting valve, damper, Conic nozzle, inside pipe casing is provided with oil pipe, the bottom of oil pipe is union tail and screen casing successively, described screen casing connects top connection, top connection connects lower contact by reducing piston, described lower contact connects Conic nozzle by damper, described top connection inside is provided with forward conduction valve, described lower contact inside is provided with reverse-conducting valve, and described Conic nozzle is provided with spray-hole.
Above-mentioned Conic nozzle comprises sprayer body, central tube, tube connector, spray-hole, and the inside of sprayer body is provided with central tube, and central tube connects spray-hole by tube connector, between described central tube and sprayer body, is provided with electric heating wire.
The beneficial effects of the utility model are: the efficiency of gathering that effectively improves oil well, improve oil well output, reduce secondary pollution to oil well, Conic nozzle improves oil well bottom plugging removal effect, avoids causing blocking shower nozzle, guarantee plugging removal effect, between central tube and sprayer body, be provided with electric heating wire, electric heating wire can improve the temperature of the injection water of central tube inside, and jeting effect is good, reach good plugging removal effect, avoid secondary pollution.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: sleeve pipe 1, oil pipe 2, tail pipe 3, screen casing 4, top connection 5, lower contact 6, reducing piston 7, forward conduction valve 8, reverse-conducting valve 9, damper 10, Conic nozzle 11;
Accompanying drawing 2 is structural representations of Conic nozzle;
In upper figure: sprayer body 11.1, central tube 11.2, tube connector 11.3, spray-hole 11.4, electric heating wire 11.5.
The specific embodiment
1-2 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises sleeve pipe 1, oil pipe 2, tail pipe 3, screen casing 4, top connection 5, lower contact 6, reducing piston 7, forward conduction valve 8, reverse-conducting valve 9, damper 10, Conic nozzle 11, sleeve pipe 1 inside is provided with oil pipe 2, the bottom of oil pipe 2 is union tail 3 and screen casing 4 successively, the bottom of described screen casing 4 connects top connection 5, described top connection 5 connects lower contact 6 by reducing piston 7, described lower contact 6 connects Conic nozzle 11 by damper 10, described top connection 5 inside are provided with forward conduction valve 8, described lower contact 6 inside are provided with reverse-conducting valve 9, described Conic nozzle 11 is provided with spray-hole 11.4, Conic nozzle 11 improves oil well bottom plugging removal effect, head pyramidal structure is avoided causing and is blocked Conic nozzle 11, guarantee plugging removal effect.
Wherein, Conic nozzle 11 comprises sprayer body 11.1, central tube 11.2, tube connector 11.3, spray-hole 11.4, the inside of sprayer body 11.1 is provided with central tube 11.2, central tube 11.2 connects spray-hole 11.4 by tube connector 11.3, between described central tube 11.2 and sprayer body 11.1, be provided with electric heating wire 11.5, electric heating wire 11.5 can improve the temperature of the injection water of central tube 11.2 inside, and jeting effect is good, reach good plugging removal effect, avoid secondary pollution.
In the time of oil pumper upstroke, oil pipe elastic shrinkage moves upward, driving mechanical block-relief oil production device moves upward, simultaneously, forward conduction valve cuts out, reducing piston assembly shutoff oil jacket ring shaped oil passage, makes forward conduction valve lower zone form negative pressuren zone, is equivalent to stratum to produce a powerful suction force.
In the time of oil pumper down stroke, oil pipe elastic elongation moves downward, and driving mechanical block-relief oil production device moves downward; Meanwhile, reverse-conducting valve portion is closed, and reducing piston assembly is shutoff oil jacket ring shaped oil passage still, makes reverse-conducting valve lower zone form higher-pressure region, and this motion produces a kind of reverse impact force to the oil flow channel in stratum again.
Claims (2)
1. an oil extraction sand prevention plug-removing device, it is characterized in that: comprise sleeve pipe (1), oil pipe (2), tail pipe (3), screen casing (4), top connection (5), lower contact (6), reducing piston (7), forward conduction valve (8), reverse-conducting valve (9), damper (10), Conic nozzle (11), sleeve pipe (1) inside is provided with oil pipe (2), the bottom of oil pipe (2) is union tail (3) and screen casing (4) successively, the bottom of described screen casing (4) connects top connection (5), described top connection (5) connects lower contact (6) by reducing piston (7), described lower contact (6) connects Conic nozzle (11) by damper (10), described top connection (5) inside is provided with forward conduction valve (8), described lower contact (6) inside is provided with reverse-conducting valve (9), described Conic nozzle (11) is provided with spray-hole (11.4).
2. oil extraction sand prevention plug-removing device according to claim 1, it is characterized in that: described Conic nozzle (11) comprises sprayer body (11.1), central tube (11.2), tube connector (11.3), spray-hole (11.4), the inside of sprayer body (11.1) is provided with central tube (11.2), central tube (11.2) connects spray-hole (11.4) by tube connector (11.3), between described central tube (11.2) and sprayer body (11.1), is provided with electric heating wire (11.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045665.XU CN203669807U (en) | 2014-01-24 | 2014-01-24 | Oil production sand-control unplugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045665.XU CN203669807U (en) | 2014-01-24 | 2014-01-24 | Oil production sand-control unplugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203669807U true CN203669807U (en) | 2014-06-25 |
Family
ID=50966119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420045665.XU Expired - Fee Related CN203669807U (en) | 2014-01-24 | 2014-01-24 | Oil production sand-control unplugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203669807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952407A (en) * | 2016-06-03 | 2016-09-21 | 中国石油天然气股份有限公司 | Drilling tool stuck releasing method and stuck releasing device |
-
2014
- 2014-01-24 CN CN201420045665.XU patent/CN203669807U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952407A (en) * | 2016-06-03 | 2016-09-21 | 中国石油天然气股份有限公司 | Drilling tool stuck releasing method and stuck releasing device |
| CN105952407B (en) * | 2016-06-03 | 2018-05-04 | 中国石油天然气股份有限公司 | Drilling tool stuck releasing method and stuck releasing device |
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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 |
Granted publication date: 20140625 Termination date: 20150124 |
|
| EXPY | Termination of patent right or utility model |