CN201915927U - Chemicals feeding device for antiscaling wellhead of oil well - Google Patents
Chemicals feeding device for antiscaling wellhead of oil well Download PDFInfo
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- CN201915927U CN201915927U CN2011200248545U CN201120024854U CN201915927U CN 201915927 U CN201915927 U CN 201915927U CN 2011200248545 U CN2011200248545 U CN 2011200248545U CN 201120024854 U CN201120024854 U CN 201120024854U CN 201915927 U CN201915927 U CN 201915927U
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- oil well
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Abstract
A chemicals feeding device for an antiscaling wellhead of an oil well relates to the chemicals feeding device for the antiscaling wellhead of the oil well for alkali-surfactant-polymer(ASP) combinational flooding. The chemicals feeding device comprises a case, wherein a chemicals storage tank is arranged inside the case and is connected with the input end of a piston pump through a first connection tube; the output end of the piston pump is connected with a liquid inlet end of a second connection tube; a second ball valve is connected onto the second connection tube which is connected with a liquid inlet end of a third connection tube; the third connection tube is connected with a safety valve; a liquid outlet end of the second connection tube is fixedly connected with a vertical check valve; the check valve comprises a lower interface outside which a lower check clamping nut is sleeved; a valve is arranged above the lower interface; the lower end of the valve is in threaded connection with the lower check clamping nut; a valve core sleeve and a gravity type check ball are arranged inside the valve; an upper interface is arranged above the valve; an upper check clamping nut is sleeved outside the upper interface and is in threaded connection with the upper end of the valve body; and the upper end of the upper interface is fixedly connected with a liquid inlet end of a reversed U-shaped pipe. The pipe sealing elements of the chemicals feeding device are not easy to damage; and the check valve cannot be blocked.
Description
Technical field
The utility model relates to and is used for ternary composite oil-displacing well mouth of oil well dosing scale prevention device.
Background technology
In the ternary composite oil-displacing process, the stratum mineral matter is dissolved, be carried into oil well, and constantly crystallization on the borehole wall of oil pumper, the back of assembling, grow up form dirty matter; Thereby make oil pipe along with internal diameter is dwindled in the thickening of dirt layer gradually, increased the load and the power consumption of oil pumper, oil pumper holddown stopping accident takes place when especially fouling is serious.And well head antiscale chemicals dosing plant is with the medicine machine in the antiscale chemical agent injection oil well oil sets annular space.Well head chemicals dosing plant commonly used has: the agravic chemicals dosing plant of well head, throw the ball chemicals dosing plant, measuring pump chemicals dosing plant etc.; But technically all there is certain defective: inject as energy consumption height, no high pressure that breeze way, conduit seals rapid wear, safety attachment are complete, freeze problems such as stifled winter.
Be embodied as: 1, original technology adopts the heating of heating medicine storing pot interpolation type, and temperature is uncontrollable, and its shortcoming is: the soup height of heating when 1. permanent power heating natural environment temperature is high, destroy the composition of chemical agent and waste electric energy; 2. since chemicals dosing plant at the on-the-spot unmanned of well head, soup is during to lowest order, and dry combustion method, danger on fire are arranged.
2, because the injection of the fluid of plunger displacement pump is a pulsation stream, and the high pressure peak pressure of pulsation produces impact to envelope confidential paper, pipeline, long-term work connects pressure piping and seal damages.And fuel gas or crude oil when the plunger displacement pump termination of pumping in the oil well casing return in the chemicals dosing plant.
3, output pipe adopts spring loaded check valve in the past, because spring contacts with chemical corrosivity liquid for a long time, tends to be lost efficacy by corrosion.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of oil well antiscale well head chemicals dosing plant to be provided, make not rapid wear of conduit seals, and flap valve can not stop up, and soup injects stable.
The purpose of this utility model is achieved in that oil well antiscale well head chemicals dosing plant, comprise casing, medicine storing pot is set in the casing, the liquid feeding end that connects first tube connector on the medicine storing pot, connect the strainer and first ball valve on first tube connector, the outlet end of first tube connector connects the input of plunger displacement pump, the plunger delivery side of pump connects the liquid feeding end of second tube connector, connect second ball valve on second tube connector, the liquid feeding end that is connected the 3rd tube connector on second tube connector between described plunger displacement pump and second ball valve, attachment security valve on the 3rd tube connector, the flap valve of the fixedly connected vertical setting of outlet end of described second tube connector, described flap valve comprises lower interface, the upper end of lower interface is provided with the lower convex platform of outside protrusion, the lower interface overcoat deposits the non-return pressure cap, and lower convex platform is arranged on down in the non-return pressure cap; The top of described lower interface is provided with valve body, the lower end of valve body is threaded with following non-return pressure cap, valve core housing and gravity check ball are set in the valve body, the gravity check ball is arranged on the top of valve core housing, and the top of valve body is provided with interface, and the lower end of last interface is provided with the convex platform of outside protrusion, last interface is nested with the non-return pressure cap outward, convex platform is arranged in the non-return pressure cap, and last non-return pressure cap is threaded with the upper end of valve body, the described liquid feeding end of going up the upper end fixedly connected ∩ shape pipeline of interface.
The utility model is by above design, and flap valve and ∩ shape pipeline combination title are ∩ shape injector, and the straight tedge of ∩ shape injector can make and inject upwards mobilization force of high pressure chemistry agent generation, drives flap valve and opens.Because backflow phenomenon appears in regular meeting in the time of in the dosing process, meanwhile can carry a part of impurity and reflux.When impurity is back to curved mouthful of section of ∩ shape pipeline, because the effect of gravity and pipe friction resistance forces impurity to land, finally be deposited in the port of export downwards, effectively avoid impurity to enter flap valve, thereby solved the blocked trouble and worry of flap valve.The gravity check ball is to be processed by a kind of high polymer, possesses good corrosion resistance, thus ∩ shape injector can effectively prevent the plunger displacement pump termination of pumping time fuel gas or the crude oil in the oil well casing return in the device.And after adopting ∩ shape pipeline, reduce and impact, can prevent effectively that arteries and veins stream from damaging pipeline, closing element, makes the pipe fitting steady operation.Advantages such as the while is effectively prevented non-return liquid return-air, and flow resistance is little, and installation and maintenance are convenient.The utility model connects the employing fast connecting joint, can realize that oil well antiscale well head chemicals dosing plant is connected with oil well or the quick of various dosing occasions, easy for installation, simple to operate, safe and reliable, cost is low, is applicable to the dosing of various oil wells, chemical pharmaceutical and various dosing occasions.
In order to prevent that the gravity check ball from upwards pushing up too highly, fixedly connected pin in the valve body, pin is arranged on the top of described gravity check ball.
In order to lock valve body and upper and lower interface, make sealing more between valve body and last interface, the lower interface gasket seal to be set respectively.
The outer bottom of medicine storing pot is provided with heater, and heater connects electric control box.Adopt external convection type heated at constant temperature, the PID temperature adjusting is guaranteed heated at constant temperature in the case.Can not destroy the composition of chemical agent, saves energy; Dry combustion method, danger on fire have simultaneously also been avoided.
Be connected the 4th tube connector on the 3rd tube connector between safety valve and second tube connector, connect isolation controller and overpressure protector on the 4th tube connector.When freezing obstruction and the obstruction of chemical swelling take place the pressure piping between linkage and the well head or owing to shaft mouth operation, closing head valve, rely on safety valve action and unreliable; Therefore is furnished with overpressure protection, the action of stop plunger pump after the pipeline superpressure.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a partial schematic diagram of the present utility model.
Among the figure, 1 casing, 2 medicine storing pots; 3 heaters, 4 strainers, 5 first ball valves; 6 plunger displacement pumps, 7 isolation controllers, 8 safety valves; 9 overpressure protectors, 10 second ball valves, 11 flap valve; the 11-1 lower interface, 11-2 lower seal pad, 11-3 valve core housing; non-return pressure cap under the 11-4,11-5 gravity check ball, 11-6 valve body; the last non-return pressure cap of 11-7, the last gasket seal of 11-8, the last interface of 11-9; the 11-10 convex platform, 11-11 pin, 11-12 lower convex platform; 12 ∩ shape pipelines, 13 electric control boxes, 14 first tube connectors; 15 second tube connectors, 16 the 3rd tube connectors, 17 the 4th tube connectors.
The specific embodiment
As shown in Figure 1, for oil well antiscale well head chemicals dosing plant, comprise casing 1, medicine storing pot 2 is set in the casing 1, the outer bottom of medicine storing pot 2 is provided with heater 3, and heater 3 connects electric control box 13.The liquid feeding end that connects first tube connector 14 on the medicine storing pot 2, connect the strainer 4 and first ball valve 5 on first tube connector 14, the outlet end of first tube connector 14 connects the input of plunger displacement pump 6, the output of plunger displacement pump 6 connects the liquid feeding end of second tube connector 15, the flap valve 11 that connects the fixedly connected vertical setting of outlet end of second ball valve, 10, the second tube connectors 15 on second tube connector 15.
As shown in Figure 2, flap valve 11 comprises lower interface 11-1, the outlet end welding of the lower end of lower interface 11-1 and second tube connector 15, the upper end of lower interface 11-1 is provided with the lower convex platform 11-12 of outside protrusion, lower interface 11-1 overcoat deposits non-return pressure cap 11-4, and lower convex platform 11-12 is arranged on down in the non-return pressure cap 11-4.The top of lower interface 11-1 is provided with lower seal pad 11-2, and the top of lower seal pad 11-2 is provided with valve body 11-6, and the lower end of valve body 11-6 is threaded with following non-return pressure cap 11-4.Valve core housing 11-3 and gravity check ball 11-5 are set in the valve body 11-6, and gravity check ball 11-5 is arranged on the top of valve core housing 11-3, the pin 11-11 of fixedly connected horizontally set in the valve body 11-6, and pin 11-11 is arranged on the top of gravity check ball 11-5.The top of valve body 11-6 is provided with gasket seal 11-8, the top of last gasket seal 11-8 is provided with interface 11-9, the lower end of last interface 11-9 is provided with the convex platform 11-10 of outside protrusion, last interface 11-9 is nested with non-return pressure cap 11-7 outward, convex platform 11-10 is arranged in the non-return pressure cap 11-7, and last non-return pressure cap 11-7 is threaded with the upper end of valve body 11-6.The liquid feeding end of the upper end welding ∩ shape pipeline 12 of last interface 11-9, the outlet end 12-1 of ∩ shape pipeline 12 connects the bushing of well head to the oil well dosing.
The liquid feeding end that is connected the 3rd tube connector 16 on second tube connector 15 between plunger displacement pump 6 and second ball valve 10; attachment security valve 8 on the 3rd tube connector 16; be connected on the 3rd tube connector 16 between safety valve 8 and second tube connector 15 and connect isolation controller 7 and overpressure protector 9 on the 4th tube connector 17, the four tube connectors 17.
Claims (5)
1. oil well antiscale well head chemicals dosing plant, comprise casing, medicine storing pot is set in the casing, the liquid feeding end that connects first tube connector on the medicine storing pot, connect the strainer and first ball valve on first tube connector, the outlet end of first tube connector connects the input of plunger displacement pump, the plunger delivery side of pump connects the liquid feeding end of second tube connector, connect second ball valve on second tube connector, the liquid feeding end that is connected the 3rd tube connector on second tube connector between described plunger displacement pump and second ball valve, attachment security valve on the 3rd tube connector, it is characterized in that: the flap valve of the fixedly connected vertical setting of outlet end of described second tube connector, described flap valve comprises lower interface, the upper end of lower interface is provided with the lower convex platform of outside protrusion, the lower interface overcoat deposits the non-return pressure cap, and lower convex platform is arranged on down in the non-return pressure cap; The top of described lower interface is provided with valve body, the lower end of valve body is threaded with following non-return pressure cap, valve core housing and gravity check ball are set in the valve body, the gravity check ball is arranged on the top of valve core housing, and the top of valve body is provided with interface, and the lower end of last interface is provided with the convex platform of outside protrusion, last interface is nested with the non-return pressure cap outward, convex platform is arranged in the non-return pressure cap, and last non-return pressure cap is threaded with the upper end of valve body, the described liquid feeding end of going up the upper end fixedly connected ∩ shape pipeline of interface.
2. oil well antiscale well head chemicals dosing plant according to claim 1 is characterized in that: fixedly connected pin in the described valve body, pin is arranged on the top of described gravity check ball.
3. oil well antiscale well head chemicals dosing plant according to claim 1 is characterized in that: between described valve body and last interface, the lower interface gasket seal is set respectively.
4. oil well antiscale well head chemicals dosing plant according to claim 1, it is characterized in that: the outer bottom of described medicine storing pot is provided with heater, and heater connects electric control box.
5. oil well antiscale well head chemicals dosing plant according to claim 1 is characterized in that: be connected the 4th tube connector on the 3rd tube connector between described safety valve and second tube connector, connect isolation controller and overpressure protector on the 4th tube connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200248545U CN201915927U (en) | 2011-01-26 | 2011-01-26 | Chemicals feeding device for antiscaling wellhead of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200248545U CN201915927U (en) | 2011-01-26 | 2011-01-26 | Chemicals feeding device for antiscaling wellhead of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915927U true CN201915927U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200248545U Expired - Fee Related CN201915927U (en) | 2011-01-26 | 2011-01-26 | Chemicals feeding device for antiscaling wellhead of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829716A (en) * | 2017-10-26 | 2018-03-23 | 胜利新大实业集团有限公司 | Polished rod kinetic energy chemicals dosing plant |
-
2011
- 2011-01-26 CN CN2011200248545U patent/CN201915927U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829716A (en) * | 2017-10-26 | 2018-03-23 | 胜利新大实业集团有限公司 | Polished rod kinetic energy chemicals dosing plant |
| CN107829716B (en) * | 2017-10-26 | 2018-10-02 | 胜利新大实业集团有限公司 | Oil well polished rod kinetic energy chemicals dosing plant |
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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: 20110803 Termination date: 20170126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |