CN207673934U - A kind of long-range pressure relief device in acid fracturing scene - Google Patents
A kind of long-range pressure relief device in acid fracturing scene Download PDFInfo
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- CN207673934U CN207673934U CN201820018777.4U CN201820018777U CN207673934U CN 207673934 U CN207673934 U CN 207673934U CN 201820018777 U CN201820018777 U CN 201820018777U CN 207673934 U CN207673934 U CN 207673934U
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- acid fracturing
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Abstract
The utility model discloses a kind of long-range pressure relief devices in acid fracturing scene, it is related to the long-range pressure release technical field in acid fracturing scene in process for petroleum recovery, it solves hydraulic control system in the prior art and is not suitable for high torque output place, also it cannot achieve and the technical problems such as accurately control, it includes control device, hydraulic station, torsion mechanism and plug valve, hydraulic station includes motor, hydraulic oil container and oil pump, torsion mechanism includes hydraulic lock, pressure cylinder and gear shaft, control device includes PLC controller, fuel feeding executive component and man-machine interaction unit, fuel feeding executive component includes electric proportional dump valve, electric proportional flow control valve, first solenoid valve and second solenoid valve.The structure design of the utility model is reasonable, easy to operate, can remotely realize the accurate pressure release for acid solution, mainly carry out long-range pressure release after acid fracturing construction.
Description
Technical field
It is the utility model is related to the long-range pressure release technical field in acid fracturing scene in process for petroleum recovery, more particularly to a kind of
The long-range pressure relief device in acid fracturing scene.
Background technology
Sour acid processing work is squeezed to stratum being enough to press off under stratum forms crack or the pressure for opening stratum primary fracture
Skill is known as fracture acidizing.Fore negative bed and common acid fracturing (or general acid fracturing) can be divided into.Fracture acidizing is mainly used for blocking model
Enclose the oil/gas well in relatively depth or hyposmosis area.Acid filling pressure is higher than the fracture acidizing of oily (gas) layer fracture pressure, and people are accustomed to claiming
Be acid fracturing.It is a widely used increasing yield and injection measure of domestic and international oil field LIMESTONE RESERVOIR to be acidified hydraulic pressure.Start to become
Important completion means.
Fracturing work scene manifold operating pressure is very high, and conventional maximum working pressure can reach 140MPA at this stage.Just
In the case of often, scene need 4~5 adults resultant force to open valve manually by lever principle, in special circumstances, 8 people even
Valve pressure release can not be opened.Moreover, when valve is opened to certain angle, since the effect of pipe inner pressure medium, valve may
It generates revolution and either increases open angle suddenly.Because there are high pressures in pipeline, cock is caused to be not easy to switch, or manually let out
Pressure is firmly uneven, and pressure release is caused to be unable to control, and even cock is easily pierced leakage and slided, to jeopardize the personal safety of pressure release personnel, and
Influence sand fracturing or the acidification transformation operation in later stage.Existing long-range pressure release control technology and product are suitable for normal ranges,
It is mainly solved the problems, such as using automatically controlled, gas control or hydraulic control principle, existing long-range pressure release technology is by automatically controlled, gas control, hydraulic control
It is controlled in terms of these three, but there are prodigious defects for their control mode, cannot be satisfied high pressure place job requirements：Electricity
Dynamic control may be implemented to accurately control, and mainly for the low Work places of pressure rank, output torque is bigger, and power of motor is also
It is bigger.Pneumatic control is suitable under environment under low pressure, and equipment volume is big, and noise is big, can also realize and accurately control.It is existing
Hydraulic control system be not suitable for high torque output place, also cannot achieve and accurately control, can only simply realize standard-sized sheet or
Person is fully closed.But acid fracturing valve site switch needs large torque, high-precision.Existing long-range pressure release technology can not be applicable in
In acid fracturing operation medium-long range pressure release.
Utility model content
The purpose of this utility model is that：
Accurate pressure release can be carried out to high pressure line by providing one kind, and the acid fracturing for improving the safe coefficient of pressure release is existing
The long-range pressure relief device in field.
The utility model specifically uses following technical scheme to achieve the goals above：
A kind of long-range pressure relief device in acid fracturing scene, including control device, hydraulic station, torsion mechanism and plug valve, tool
Body：
The hydraulic station includes motor, hydraulic oil container and oil pump；
The torsion mechanism includes hydraulic lock, pressure cylinder and gear shaft；
The control device includes PLC controller, fuel feeding executive component and man-machine interaction unit, the man-machine interaction unit
Signal input/output terminal and the signal input/output terminal of PLC controller connect, the fuel feeding executive component includes electric ratio
Pressure regulator valve, electric proportional flow control valve, the first solenoid valve and second solenoid valve, the electricity proportional dump valve, electric proportional flow control valve, first
Solenoid valve connects the signal output end of PLC controller with the control signal input of second solenoid valve；
The hydraulic station is connected with the first hydraulic oil input channel and the second hydraulic oil input channel, first hydraulic oil
It is not connected between input channel and the second hydraulic oil input channel, passes through institute between the hydraulic station and the torsion mechanism
It states the first hydraulic inlet road to connect with the second hydraulic oil input channel, electric ratio is equipped in the middle part of the first hydraulic oil input channel
Example pressure regulator valve, electric proportional flow control valve and the first solenoid valve, be equipped in the middle part of the second hydraulic oil input channel electric proportional dump valve,
Electric proportional flow control valve and second solenoid valve；
The plug valve is connected with high-voltage tube bus, and the high-voltage tube bus is connected with high pressure line device, the high pressure
Pipe bus is equipped with pressure sensor, and the output end of the pressure sensor is connect with the input terminal of the PLC controller, described
Pass through gear axis connection between plug valve and the torsion mechanism.
The operation principle of the utility model：It is powered first to equipment, system, which is in, prepares operating status.Adjusting hydraulic station,
The output pressure and flow in the first hydraulic inlet road or the second hydraulic inlet road, electric proportional dump valve are used for adjusting hydraulic pressure
The output pressure stood, according to scene, different pressure rank operations selects different pressure outputs, ensures the versatility of equipment.Electricity
Proportional flow control valve is for controlling the output of hydraulic station flow, and uninterrupted determines the period of valve switch action, and flow is bigger,
Valve event is faster.Then starting motor drives oil pump to suppress, to drive torsion mechanism to move, and the movement of torsion mechanism passes through
Gear shaft controls the rotation of plug valve so that plug valve is opened or is closed.Pressure sensor is equipped in senior executive's bus,
Pressure state in high-voltage tube bus is passed to PLC controller by pressure sensor, and PLC controller passes to after signal is converted
Man-machine interaction unit, the information that can be transmitted according to pressure sensor control electric proportional dump valve, the output of hydraulic station are adjusted
Pressure, to carry out the torque of control gear shaft so that plug valve rotates suitable angle, to complete safety relief.
Further, the plug valve is connected with multiple high pressure line devices.
Further, the first solenoid valve and the electric proportional flow control valve and electric ratio on the first hydraulic oil input channel
Example pressure regulator valve series connection, it is in parallel between the electricity proportional flow control valve and the electric proportional dump valve；The second hydraulic oil input pipe
Second solenoid valve is connected with the electric proportional flow control valve and electric proportional dump valve on road, the electricity proportional flow control valve and the electricity
It is in parallel between proportional dump valve.After opening the first solenoid valve or second solenoid valve, it can be controlled on the first hydraulic inlet road
The electric proportional flow control valve of system carries out accurate pressure release with electric proportional dump valve so as to the torque of adjustment gear axis.
Further, described plug valve one end is communicated with return agent recovery tank.The setting of return agent recovery tank makes
Acid solution in high pressure line is recovered, and is not polluted the environment, and has achieved the purpose that recycling and environmental protection.
Further, it is provided with manual pump on the hydraulic station.Manual pump can be used in no electric energy, enhance dress
Set versatility.
Further, the man-machine interaction unit is touch screen.Touch screen facilitates control to operate, and can more accurately control
Pressure leak process processed.
Further, the torsion mechanism is 90 ° of corner hydraulic structures.Torsion mechanism is that 90 ° of corner hydraulic structures can be with
The angle that plug valve rotates is increased, and controls the flow of acid solution.
Further, the high pressure line bus branch out setting parallel with one another the first high pressure line bus branch line and
Second high pressure line bus branch line, the second high pressure line bus branch line are provided with safety valve.In the second high pressure line
Diaphragm blasting type safety valve is installed, to ensure pressure more than being automatically opened after setting value, quick pressure releasing ensures on bus branch line
The setting of Field Force's safety, diaphragm blasting type safety valve makes entire compression system outside the overpressure protection system of pressure vehicle again
Increase a superpressure insurance.
The beneficial effects of the utility model are as follows：
1. the utility model in high pressure line bus by being arranged pressure sensor, and setting receives pressure sensor
The PLC controller of information controls fuel feeding executive component by PLC controller so that the torsion of torsion mechanism middle gear axis
Square is precisely controlled, and to realize accurate pressure release, the utility model structure setting is reasonable, easy to operate.
2. the setting of return agent recovery tank makes the acid solution in high pressure line be recovered in the utility model, will not pollute
Environment has achieved the purpose that recycling and environmental protection.
3. diaphragm blasting type safety valve is installed in the utility model on the second high pressure line bus branch line, to ensure to press
Power is more than to automatically open after setting value, and quick pressure releasing ensures that Field Force's safety, the setting of diaphragm blasting type safety valve make whole
A compression system increases a superpressure insurance again outside the overpressure protection system of pressure vehicle.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Reference numeral：1- the first hydraulic oil input channels, 2- the second hydraulic oil input channels, 3- high-voltage tube buses, 4-
One high pressure line bus branch line, 5- the second high pressure line bus branch lines, 6- man-machine interaction units, 7-PLC controllers, 8- liquid
Pressure station, 9- torsion mechanisms, 10- plug valves, 11- pressure sensors, 12- high pressure line devices, 13- safety valves, 14- return media
Recycling can.
Specific implementation mode
In order to which those skilled in the art are better understood from the utility model, below in conjunction with the accompanying drawings with following embodiment to this
Utility model is described in further detail.
Embodiment 1
As shown in Figure 1, the utility model provides a kind of acid fracturing scene long-range pressure relief device, including control device, liquid
Pressure station 8, torsion mechanism 9 and plug valve 10, specifically：
The hydraulic station 8 includes motor, hydraulic oil container and oil pump；
The torsion mechanism 9 includes hydraulic lock, pressure cylinder and gear shaft；
The control device includes PLC controller 7, fuel feeding executive component and man-machine interaction unit 6, the human-computer interaction list
The signal input/output terminal of member 6 is connect with the signal input/output terminal of PLC controller 7, and the fuel feeding executive component includes electricity
Proportional dump valve, electric proportional flow control valve, the first solenoid valve and second solenoid valve, the electricity proportional dump valve, electric proportional flow control valve,
First solenoid valve connects the signal output end of PLC controller 7 with the control signal input of second solenoid valve；
The hydraulic station 8 is connected with the first hydraulic oil input channel 1 and the second hydraulic oil input channel 2, first liquid
Be not connected between pressure oil input channel 1 and the second hydraulic oil input channel 2, the hydraulic station 8 and the torsion mechanism 9 it
Between connect with the second hydraulic oil input channel 2 by first hydraulic inlet road, in the first hydraulic oil input channel 1
Portion is equipped with electric proportional dump valve, electric proportional flow control valve and the first solenoid valve, and 2 middle part of the second hydraulic oil input channel is equipped with electricity
Proportional dump valve, electric proportional flow control valve and second solenoid valve；
The plug valve 10 is connected with high-voltage tube bus 3, and the high-voltage tube bus 3 is connected with high pressure line device 12, institute
It states high-voltage tube bus 3 and is equipped with pressure sensor 11, the output end of the pressure sensor 11 is defeated with the PLC controller 7
Enter end connection, passes through gear axis connection between the plug valve 10 and the torsion mechanism 9.
Embodiment 2
As shown in Figure 1, the utility model provides a kind of acid fracturing scene long-range pressure relief device, including control device, liquid
Pressure station 8, torsion mechanism 9 and plug valve 10, specifically：
The hydraulic station 8 includes motor, hydraulic oil container and oil pump；
The torsion mechanism 9 includes hydraulic lock, pressure cylinder and gear shaft；
The control device includes PLC controller 7, fuel feeding executive component and man-machine interaction unit 6, the human-computer interaction list
The signal input/output terminal of member 6 is connect with the signal input/output terminal of PLC controller 7, and the fuel feeding executive component includes electricity
Proportional dump valve, electric proportional flow control valve, the first solenoid valve and second solenoid valve, the electricity proportional dump valve, electric proportional flow control valve,
First solenoid valve connects the signal output end of PLC controller 7 with the control signal input of second solenoid valve；
The hydraulic station 8 is connected with the first hydraulic oil input channel 1 and the second hydraulic oil input channel 2, first liquid
Be not connected between pressure oil input channel 1 and the second hydraulic oil input channel 2, the hydraulic station 8 and the torsion mechanism 9 it
Between connect with the second hydraulic oil input channel 2 by first hydraulic inlet road, in the first hydraulic oil input channel 1
Portion is equipped with electric proportional dump valve, electric proportional flow control valve and the first solenoid valve, and 2 middle part of the second hydraulic oil input channel is equipped with electricity
Proportional dump valve, electric proportional flow control valve and second solenoid valve；
The plug valve 10 is connected with high-voltage tube bus 3, and the high-voltage tube bus 3 is connected with high pressure line device 12, institute
It states high-voltage tube bus 3 and is equipped with pressure sensor 11, the output end of the pressure sensor 11 is defeated with the PLC controller 7
Enter end connection, passes through gear axis connection between the plug valve 10 and the torsion mechanism 9.
The plug valve 10 is connected with multiple high pressure line devices 12.
First solenoid valve and the electric proportional flow control valve and electric proportional dump valve on the first hydraulic oil input channel 1
Series connection, it is in parallel between the electricity proportional flow control valve and the electric proportional dump valve；Second on the second hydraulic oil input channel 2
Solenoid valve is connected with the electric proportional flow control valve and electric proportional dump valve, the electricity proportional flow control valve and the electric ratio pressure regulation
It is in parallel between valve.
10 one end of the plug valve is communicated with return agent recovery tank 14.
It is provided with manual pump on the hydraulic station 8.
The man-machine interaction unit 6 is touch screen.
The torsion mechanism 9 is 90 ° of corner hydraulic structures.
The high pressure line bus branches out the first high pressure line bus branch line 4 and the second high pressure of setting parallel with one another
Pipeline bus branch line, the second high pressure line bus branch line 5 are provided with safety valve 13.
The operation principle of the utility model：It is powered first to equipment, system, which is in, prepares operating status.Adjusting hydraulic station 8,
The output pressure and flow in the first hydraulic inlet road or the second hydraulic inlet road, electric proportional dump valve are used for adjusting hydraulic pressure
Stand 8 output pressure, different pressure outputs is selected according to the different pressure rank operation in scene, ensures the versatility of equipment.
Electric proportional flow control valve is for controlling the output of 8 flow of hydraulic station, and uninterrupted determines that the period of valve switch action, flow get over
Greatly, valve event is faster.Then starting motor drives oil pump to suppress, to drive torsion mechanism 9 to move, the fortune of torsion mechanism 9
The dynamic rotation that plug valve 10 is controlled by gear shaft so that plug valve 10 is opened or is closed.It is equipped in senior executive's bus
Pressure state in high-voltage tube bus 3 is passed to PLC controller 7, PLC controller 7 by pressure sensor 11, pressure sensor 11
Man-machine interaction unit 6 is passed to after signal is converted, the information that can be transmitted according to pressure sensor 11 controls electric ratio pressure regulation
The output pressure of hydraulic station 8 is adjusted in valve, to carry out the torque of control gear shaft so that plug valve 10 rotates suitably
Angle, to complete safety relief.The setting of return agent recovery tank 14 makes the acid solution in high pressure line be recovered, will not be dirty
Environment is contaminated, has achieved the purpose that recycling and environmental protection.In pressure leak process, if the first high pressure line bus branch line 4
It breaks down, system pressure increases, then the diaphragm blasting type safety valve being set on the second high pressure line bus branch line 5 is automatic
Explosion, the second high pressure line bus branch line 5 are opened, and high-pressure medium is successively by the second high pressure line bus branch line 5 and high pressure
Pipeline bus 3, and enter return agent recovery tank 14 via the outlet on plug valve 10, complete pressure release, diaphragm blasting type safety
The setting of valve 13 is so that entire compression system increases a superpressure insurance outside the overpressure protection system of pressure vehicle again.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by every specification and accompanying drawing content with the utility model
Structure change similarly should be included in the scope of protection of the utility model.
Claims (8)
1. a kind of long-range pressure relief device in acid fracturing scene, it is characterised in that：Including control device, hydraulic station (8), torsion mechanism
(9) and plug valve (10), specifically：
The hydraulic station (8) includes motor, hydraulic oil container and oil pump；
The torsion mechanism (9) includes hydraulic lock, pressure cylinder and gear shaft；
The control device includes PLC controller (7), fuel feeding executive component and man-machine interaction unit (6), the human-computer interaction list
The signal input/output terminal of first (6) is connect with the signal input/output terminal of PLC controller (7), the fuel feeding executive component packet
Include electric proportional dump valve, electric proportional flow control valve, the first solenoid valve and second solenoid valve, the electricity proportional dump valve, electric ratio stream
Amount valve, the first solenoid valve connect the signal output end of PLC controller (7) with the control signal input of second solenoid valve；
The hydraulic station (8) is connected with the first hydraulic oil input channel (1) and the second hydraulic oil input channel (2), and described first
It is not connected between hydraulic oil input channel (1) and the second hydraulic oil input channel (2), the hydraulic station (8) and the torsion
It is connect with the second hydraulic oil input channel (2) by first hydraulic inlet road between force mechanisms (9), first hydraulic pressure
Electric proportional dump valve, electric proportional flow control valve and the first solenoid valve, the second hydraulic oil input are equipped in the middle part of oily input channel (1)
Electric proportional dump valve, electric proportional flow control valve and second solenoid valve are equipped in the middle part of pipeline (2)；
The plug valve (10) is connected with high-voltage tube bus (3), and the high-voltage tube bus (3) is connected with high pressure line device
(12), the high-voltage tube bus (3) be equipped with pressure sensor (11), the output end of the pressure sensor (11) with it is described
The input terminal of PLC controller (7) connects, and passes through gear axis connection between the plug valve (10) and the torsion mechanism (9).
2. a kind of long-range pressure relief device in acid fracturing scene according to claim 1, it is characterised in that：The plug valve
(10) several high pressure line devices (12) are connected with.
3. a kind of long-range pressure relief device in acid fracturing scene according to claim 1, it is characterised in that：First hydraulic pressure
The first solenoid valve is connected with the electric proportional flow control valve and electric proportional dump valve on oily input channel (1), the electricity ratio stream
It measures in parallel between valve and the electric proportional dump valve；Second solenoid valve and the electricity on the second hydraulic oil input channel (2)
Proportional flow control valve and electric proportional dump valve series connection, it is in parallel between the electricity proportional flow control valve and the electric proportional dump valve.
4. a kind of long-range pressure relief device in acid fracturing scene according to claim 1, it is characterised in that：The plug valve
(10) one end is communicated with return agent recovery tank (14).
5. a kind of long-range pressure relief device in acid fracturing scene according to claim 1, it is characterised in that：The hydraulic station
(8) manual pump is provided on.
6. a kind of long-range pressure relief device in acid fracturing scene according to claim 1, it is characterised in that：The human-computer interaction
Unit (6) is touch screen.
7. a kind of long-range pressure relief device in acid fracturing scene according to claim 1, it is characterised in that：The torsion mechanism
(9) it is 90 ° of corner hydraulic structures.
8. a kind of long-range pressure relief device in acid fracturing scene according to claim 1, it is characterised in that：The high pressure line
Bus branches out the first high pressure line bus branch line (4) and the second high pressure line bus branch line (5) of setting parallel with one another,
The second high pressure line bus branch line (5) is provided with safety valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018777.4U CN207673934U (en) | 2018-01-05 | 2018-01-05 | A kind of long-range pressure relief device in acid fracturing scene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018777.4U CN207673934U (en) | 2018-01-05 | 2018-01-05 | A kind of long-range pressure relief device in acid fracturing scene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207673934U true CN207673934U (en) | 2018-07-31 |
Family
ID=62973188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820018777.4U Active CN207673934U (en) | 2018-01-05 | 2018-01-05 | A kind of long-range pressure relief device in acid fracturing scene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207673934U (en) |
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2018
- 2018-01-05 CN CN201820018777.4U patent/CN207673934U/en active Active
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