CN106703747A - Remote automatic control digital needle valve device and method and application thereof - Google Patents
Remote automatic control digital needle valve device and method and application thereof Download PDFInfo
- Publication number
- CN106703747A CN106703747A CN201611136897.6A CN201611136897A CN106703747A CN 106703747 A CN106703747 A CN 106703747A CN 201611136897 A CN201611136897 A CN 201611136897A CN 106703747 A CN106703747 A CN 106703747A
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- China
- Prior art keywords
- valve
- well
- automatic control
- remote automatic
- needle
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
Abstract
The invention provides a remote automatic control digital needle valve device and a method and application thereof. A stepping motor mechanism capable of conducting precise position control is adopted, a remote automatic control digital needle valve controls a gas well to open and close the well, the principle is simple, a single chip sends a sequence pulse, a small current signal of the sequence pulse is amplified through an amplifier to drive the stepping motor to work, angle displacement sent by the stepping motor is adopted as a command, straight line displacement of a valve core is manipulated through screw thread fit to further control the motion of the needle valve so as to achieve the reciprocating motion of a variable of the needle valve, thus the needle valve is promoted to control the gas amount of a well opening of the gas well, finally the opening and closing state of the well opening of the gas well is changed, ground pipeline hydrops is removed by utilizing high speed gas flow to vibrate and blow a pipeline when the well is opened, the energy of the gas well itself is reasonably utilized to discharge liquid, no external matter is introduced, and the running cost is low. The remote automatic control digital needle valve device and the method and application thereof has the advantages that the opening and closing state of the needle valve can be remotely and safely controlled, the device is simple in structure, opening and closing can be remotely conducted at any time, and manpower labor is reduced.
Description
Technical field
The invention belongs to gas field production gas technology field, and in particular to a kind of remote automatic control numeral for the discharge opeing of gas field ground
Needle-valve method.
Background technology
During the natural gas extraction of gas field, with the Persisting exploitation in gas field, and stratum energy is gradually reduced, gas
Well production reduction, air-flow velocity decline, natural gas fluid-carrying capability weakens, and cause individual well flow line hydrops serious, indivedual gas transmissions
Pipeline pressure drop substantially, causes gas well to have a strong impact on gas well deliverability performance to require to be produced with generation.Scene excludes gas production at present
Pipeline hydrops mainly take to flow line filling foaming agent, stand in be vented band liquid, using siphunculus ball and siphunculus plug removing hydrops
Deng measure.
Flow line fills foaming agent, by producing substantial amounts of bubble, increases fluid-carrying capability during natural gas flow, big
Buret line hydrops is taken away, but there are problems that adding amount is big, labor strength big and；Gas field is using in station
Dewatering process, filling foaming agent can influence dehydrating effect, therefore using emptying band liquid measure in station, the measure workload is huge,
And a large amount of emptying waste the energy, pollute environment；Pipeline hydrops is removed using siphunculus ball, siphunculus plug, it is necessary to install pitching in well head
Device, while installing ball collecting device in station, flow is complicated, there is certain applicability, and throwing is received ball and there is potential safety hazard.
The content of the invention
The purpose of the present invention is, using remote automatic control numeral needle-valve, to overcome and be vented in existing station discharge opeing high cost, pollution ring
Border, filling foaming agent, using the complicated problem of siphunculus ball or the technological process of siphunculus plug.
Therefore, the invention provides a kind of remote automatic control numeral pin valve device, including the needle-valve being made up of valve element and valve seat,
Valve element is arranged in valve seat, and also including stepper motor, the top of the valve element is connected by shaft coupling with the output shaft of stepper motor
Connect, stepper motor electrically connect driving power supply and amplifier, amplifier electrically connect single-chip microcomputer, and single-chip microcomputer electrically connect upper
Machine.
A kind of remote automatic control numeral needle-valve method, comprises the following steps：
Step one, judges flow line hydrops, and closing well
Remote automatic control numeral pin valve device is arranged on the flow line of well head, driving a well carries out gas well liquid loading, and observes gas production
Oil pressure gauge on pipeline, if oil pressure drops to below 1MPa, is judged as flow line hydrops, and now host computer is sent out to single-chip microcomputer
Send the time sequential pulse for closing valve, single-chip microcomputer that time sequential pulse is sent into amplifier, low current signal of the amplifier time sequential pulse again
Stepper motor is sent to after amplification, then Driving Stepping Motor rotates a fixed step angle, stepper motor passes through shaft coupling again
Device further manipulates valve element and moves along a straight line, while increasing the time sequential pulse number of input on host computer, changes needle-valve pass amount
Size, until needle-valve is closed, so as to realize closing well；
Step 2, drives a well, and discharges the hydrops in flow line
After closing well 7.5~8.5 hours, treat that the oil pressure of flow line rises to more than 2MPa, sent to single-chip microcomputer by host computer and opened
The time sequential pulse of valve, then changes the size of needle-valve opening amount in repeat step one to the manipulation of remote automatic control numeral pin valve device,
Until needle-valve is in open mode, so as to realize driving a well, purging flow line is agitated using high velocity air when driving a well after driving a well,
And then discharge the hydrops in flow line.
Sensor, sensor and monolithic mechatronics are installed on described valve element.
It refers to that oil pressure recovers to more than 2MPa from liter that the oil pressure for treating flow line described in step 2 rises to more than 2MPa
Or pumping rises to more than 2MPa.
Closing well more than 8 hours in step 2.
A kind of application of remote automatic control numeral pin valve device, remote automatic control numeral pin valve device is arranged on the gas production of well head
On pipeline, for the discharge opeing of gas field ground.
Beneficial effects of the present invention：This remote automatic control numeral pin valve device and its methods and applications that the present invention is provided,
Employing can be simple with the stepper motor mechanism of Accurate Position Control, remote automatic control numeral noticeable degree gas well switch well, principle,
Discharge opeing is safe and efficient, and time sequential pulse is sent by single-chip microcomputer, the low current signal of time sequential pulse is amplified by amplifier, it is sufficient to drive
Dynamic stepper motor work, the angular displacement that stepper motor sends is used as instruction, the straight line position for coordinating to manipulate valve element by screw thread
Move, and then control the motion of needle-valve, to realize the reciprocating motion of variable needle-valve, so as to promote noticeable degree gas well mouth large-minded
It is small, it is final to change gas well mouth on off state, agitate blow line using high velocity air when driving a well and exclude surface line hydrops, close
Reason utilizes gas well self-energy discharge opeing, does not introduce foreign substance, and operating cost is cheap.The present invention is unique in that can be long-range
Security control needle valve switch state, only makes full use of gas well self-energy to exclude surface line hydrops, and apparatus structure is simple, can
Long-range start and stop, reduces manual labor at any time.
When device works, safety and environmental protection, noise pollution is small.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of remote automatic control numeral pin valve device.
Fig. 2 is the control principle drawing of remote automatic control numeral pin valve device.
Description of reference numerals：1st, needle-valve；2nd, valve element；3rd, valve seat；4th, stepper motor；5th, amplifier；6th, driving power supply；7th, it is single
Piece machine；8th, host computer；9th, sensor.
Specific embodiment
Embodiment 1：
Be vented in existing station discharge opeing high cost, pollution environment to overcome, filling foaming agent, using siphunculus ball or siphunculus plug technique
The complicated problem of flow, present embodiments provides a kind of remote automatic control numeral pin valve device as shown in Figure 1, including by valve element 2
The needle-valve 1 constituted with valve seat 3, valve element 2 is arranged in valve seat 3, and also including stepper motor 4, the top of the valve element 2 passes through shaft coupling
Device is connected with the output shaft of stepper motor 4, and stepper motor 4 electrically connect driving power supply 6 and amplifier 5, and amplifier 5 electrically connect
Single-chip microcomputer 7, single-chip microcomputer 7 electrically connect host computer 8.
The remote automatic control numeral pin valve device operation principle be：
Remote automatic control numeral pin valve device is arranged on the flow line of well head, during normal gas well liquid loading, flow line
Pressure drop substantially, is judged as pipeline hydrops, because gas well yield declines, air-flow velocity reduction, fluid-carrying capability weakens, and causes part
Flow line hydrops.Now in the remote control of host computer 8 numeral needle-valve, to the single-chip microcomputer 7 on well head numeral needle-valve（Microcomputer is controlled
Device）It is to send pulse train that valve signal is closed in transmission, and the low current signal of time sequential pulse is amplified by amplifier 5, drives stepping
Motor 4 rotates a fixed step angle and is converted into spool displacement, coordinates to manipulate the straight-line displacement of valve element 2 by screw thread（Can
With by the umber of pulse of input and the step number actually walked）To change the size of needle-valve pass amount, so as to realize the purpose of closing well.
Closing well for a period of time after, wait gas well recover pressure, now the remote control of host computer 8 numeral needle-valve, to well head
Single-chip microcomputer 7 on digital needle-valve（Microcomputerized controller）Transmission valve opening signal be to send pulse train, by amplifier 5 when serial vein
The low current signal of punching amplifies, and Driving Stepping Motor 4 rotates a fixed step angle and is converted into the displacement of valve element 2, by screw thread
Coordinate to manipulate the straight-line displacement of valve element 2（Can be by the umber of pulse of input and the step number actually walked）To change needle-valve opening amount
Size, so as to realize the purpose for driving a well, blow line is agitated using high velocity air when driving a well, and discharge pipe hydrops is rationally utilized
Gas well self-energy discharge opeing, does not introduce foreign substance, and operating cost is cheap.
It should be noted that driving power supply 6 provides power supply to stepper motor 4, stepper motor is to change electric impulse signal
It is angular displacement or the opened loop control element of displacement of the lines.In the case of non-overload, the rotating speed of motor, the position for stopping are solely dependent upon
The frequency and umber of pulse of pulse signal, without being influenceed by load change, when step actuator receives a pulse signal, it
One fixed angle is rotated by the direction of setting with regard to Driving Stepping Motor, referred to as " step angle ", its rotation is with fixed
What angle was run step by step.Angular displacement can be controlled by controlling pulse number, so as to reach the purpose being accurately positioned;
Simultaneously can be by the speed and acceleration that control pulse frequency to be rotated come controlled motor, so as to reach the purpose of speed governing.
The remote automatic control numeral pin valve device that the present embodiment is provided overcomes and be vented in existing station discharge opeing high cost, pollution ring
Border, filling foaming agent, using siphunculus ball or the technological process of siphunculus plug it is complicated the problems such as, remote automatic control numeral pin valve device can be remote
Control periodic switch gas well, realizes that low-pressure gas well effective and safe environmental protection low cost excludes the purpose of surface line hydrops.
Embodiment 2：
As shown in Fig. 2 present embodiments providing a kind of remote automatic control numeral needle-valve method, comprise the following steps：
Step one, judges flow line hydrops, and closing well
Remote automatic control numeral pin valve device is arranged on the flow line of well head, driving a well carries out gas well liquid loading, and observes gas production
Oil pressure gauge on pipeline, if oil pressure drops to below 1MPa, is judged as flow line hydrops, and now host computer 8 is to single-chip microcomputer 7
The time sequential pulse for closing valve is sent, time sequential pulse is sent to amplifier 5, low current of the amplifier 5 time sequential pulse by single-chip microcomputer 7 again
Signal is sent to stepper motor 4 after amplifying, and then Driving Stepping Motor 4 rotates a fixed step angle, and stepper motor 4 leads to again
Cross shaft coupling and further manipulate valve element 2 and move along a straight line, while increasing the time sequential pulse number of input on host computer 8, change pin
The size of the pass of valve 1 amount, until needle-valve 1 is closed, so as to realize closing well；
Step 2, drives a well, and discharges the hydrops in flow line
After closing well 7.5~8.5 hours, treat that the oil pressure of flow line rises to more than 2MPa, sent to single-chip microcomputer 7 by host computer 8
The time sequential pulse of valve opening, then changes the big of the opening amount of needle-valve 1 in repeat step one to the manipulation of remote automatic control numeral pin valve device
It is small, until needle-valve 1 is in open mode, so as to realize driving a well, purging gas production is agitated using high velocity air when driving a well after driving a well
Pipeline, and then discharge the hydrops in flow line.
The present embodiment is directed to a main application process of remote automatic control numeral pin valve device, in sum, this implementation
The method of the remote automatic control numeral needle-valve that example is provided, employing can be with the stepper motor mechanism of Accurate Position Control, by single-chip microcomputer 7
Time sequential pulse is sent, the low current signal of time sequential pulse is amplified by amplifier 5, it is sufficient to which Driving Stepping Motor 4 works, stepping
The angular displacement that motor 4 sends coordinates to manipulate the straight-line displacement of valve element 2, and then control needle-valve 1 as instruction by screw thread
Motion, to realize the reciprocating motion of variable needle-valve 1, so as to promote needle-valve 1 to control gas well mouth tolerance size, finally changes gas well
Well head on off state, agitates blow line and excludes surface line hydrops using high velocity air when driving a well.The method unique distinction exists
In needle valve switch state can be controlled with telesecurity, gas well self-energy is only made full use of to exclude surface line hydrops.
Embodiment 3：
On the basis of embodiment 2, sensor 9 is installed on described valve element 2, sensor 9 is electrically connected with single-chip microcomputer 7.In reality
In the step of applying example 2 one and step 2, valve element 2 is linearly moved to certain state, can by sensor 9 feed back the state of needle-valve 1 come
Judge whether closing well or drive a well to finish, play safely controllable effect.
By test of many times, preferably, the oil pressure for treating flow line described in step 2 rises to more than 2MPa referring to
Oil pressure recovers to more than 2MPa or pumping to rise to more than 2MPa from liter.And closing well more than 8 hours in step 2.
Embodiment 4：
A kind of application of remote automatic control numeral pin valve device is present embodiments provided, remote automatic control numeral pin valve device is arranged on
On the flow line of well head, for the discharge opeing of gas field ground.
This remote automatic control numeral pin valve device and its methods and applications that the present invention is provided, rationally utilize gas well itself energy
Amount discharge opeing, does not introduce foreign substance, and operating cost is cheap；Using remote automatic control numeral noticeable degree gas well switch well, principle letter
Single, discharge opeing is safe and efficient；Apparatus structure is simple, can long-range start and stop at any time, reduce manual labor；When device works, safety collar
Protect, noise pollution is small.
It is exemplified as above be only to of the invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.The portion that the present embodiment is not described in detail
Part and structure belong to the well-known components and common structure or conventional means of the industry, do not describe one by one here.
Claims (6)
1. a kind of remote automatic control numeral pin valve device, including by valve element（2）And valve seat（3）The needle-valve of composition（1）, valve element（2）Peace
Mounted in valve seat（3）It is interior, it is characterised in that：Also include stepper motor（4）, the valve element（2）Top pass through shaft coupling and stepping
Motor（4）Output shaft connection, stepper motor（4）Electrically connect driving power supply（6）And amplifier（5）, amplifier（5）Electrical connection
Single-chip microcomputer（7）, single-chip microcomputer（7）Electrically connect host computer（8）.
2. a kind of remote automatic control numeral needle-valve method, it is characterised in that comprise the following steps：
Step one, judges flow line hydrops, and closing well
Remote automatic control numeral pin valve device is arranged on the flow line of well head, driving a well carries out gas well liquid loading, and observes gas production
Oil pressure gauge on pipeline, if oil pressure drops to below 1MPa, is judged as flow line hydrops, now host computer（8）To monolithic
Machine（7）Send the time sequential pulse for closing valve, single-chip microcomputer（7）Time sequential pulse is sent to amplifier again（5）, amplifier（5）Sequential
The low current signal of pulse is sent to stepper motor after amplifying（4）, then Driving Stepping Motor（4）One fixed step pitch of rotation
Angle, stepper motor（4）Valve element is further manipulated by shaft coupling again（2）Move along a straight line, while in host computer（8）It is upper to increase defeated
The time sequential pulse number for entering, changes needle-valve（1）The size of pass amount, until needle-valve（1）It is closed, so as to realize closing well；
Step 2, drives a well, and discharges the hydrops in flow line
After closing well 7.5~8.5 hours, treat that the oil pressure of flow line rises to more than 2MPa, by host computer（8）To single-chip microcomputer（7）
The time sequential pulse of valve opening is sent, needle-valve then is changed to the manipulation of remote automatic control numeral pin valve device in repeat step one（1）Open
The size of amount, until needle-valve（1）In open mode, so as to realize driving a well, agitated using high velocity air when driving a well after driving a well
Purging flow line, and then discharge the hydrops in flow line.
3. remote automatic control as claimed in claim 2 numeral needle-valve method, it is characterised in that：Described valve element（2）On be installed with
Sensor（9）, sensor（9）With single-chip microcomputer（7）Electrical connection.
4. remote automatic control as claimed in claim 2 numeral needle-valve method, it is characterised in that：Air collecting pipe is treated described in step 2
It refers to that oil pressure recovers to more than 2MPa or pumping to rise to more than 2MPa from liter that the oil pressure of line rises to more than 2MPa.
5. remote automatic control as claimed in claim 2 numeral needle-valve method, it is characterised in that：Closing well more than 8 hours in step 2.
6. a kind of application of remote automatic control numeral pin valve device, it is characterised in that be arranged on remote automatic control numeral pin valve device
On the flow line of well head, for the discharge opeing of gas field ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136897.6A CN106703747A (en) | 2016-12-12 | 2016-12-12 | Remote automatic control digital needle valve device and method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136897.6A CN106703747A (en) | 2016-12-12 | 2016-12-12 | Remote automatic control digital needle valve device and method and application thereof |
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| CN106703747A true CN106703747A (en) | 2017-05-24 |
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| CN201611136897.6A Pending CN106703747A (en) | 2016-12-12 | 2016-12-12 | Remote automatic control digital needle valve device and method and application thereof |
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Cited By (2)
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| CN110863795A (en) * | 2019-10-30 | 2020-03-06 | 中国石油天然气股份有限公司 | Method for removing accumulated liquid of ground pipeline through high-pressure air source |
| CN111075408A (en) * | 2019-12-27 | 2020-04-28 | 山西晋城无烟煤矿业集团有限责任公司 | Device and method for remotely controlling gas production rate of coal-bed gas well |
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| CN111075408A (en) * | 2019-12-27 | 2020-04-28 | 山西晋城无烟煤矿业集团有限责任公司 | Device and method for remotely controlling gas production rate of coal-bed gas well |
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Application publication date: 20170524 |
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