CN109491318A - A kind of long-range extremely-low density automatic control system - Google Patents
A kind of long-range extremely-low density automatic control system Download PDFInfo
- Publication number
- CN109491318A CN109491318A CN201910007739.8A CN201910007739A CN109491318A CN 109491318 A CN109491318 A CN 109491318A CN 201910007739 A CN201910007739 A CN 201910007739A CN 109491318 A CN109491318 A CN 109491318A
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- control unit
- control
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- long
- mixing tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000002002 slurry Substances 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a kind of long-range extremely-low density automatic control systems, including control unit, water valve, flowmeter, grey valve, slurry mixing tank, liquidometer, circulating pump and plunger pump, grey valve, water valve, circulating pump and plunger pump are connected with slurry mixing tank respectively, the water supply of real-time monitoring is fed back to control unit by flowmeter, liquidometer is located in slurry mixing tank, control unit realizes automatic displacement on demand by the revolution and default discharge capacity of control plunger pump, the ratio of mud and level value are preset in a control unit, water requirement is calculated and needs ash quantity, to control the aperture of water valve and grey valve, control unit includes remote control unit and equipment end control unit, remote control unit is connected with equipment end control unit.The utility model has the advantages that realizing long-range cementing equipment monitoring, long-range liquid automatic control, remote automatic-taking-water, remote auto for ash, remote auto premix, the automatic control of long-range density and remote auto discharge capacity, long-range extremely-low density automatic control system.
Description
Technical field
The invention belongs to petroleum equipment fields, and in particular to a kind of long-range extremely-low density automatic control system.
Background technique
Low-density well cementing density cement pulp density is generally in 1.0g/cc or so, in general, high density is cemented the well, generally by
Densitometer detection density carries out control dreg discharge amount, carries out Auto-regulating System of Density of Heavy Medium.And when low-density well cementing operation, since mud density is with clear
Water density is close, and densitometer can not detect dreg discharge amount, therefore conventional cementing control algolithm is not used to low-density well cementing operation.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of the prior art and provide a kind of long-range extremely-low density automatic control system, make
Operator is far from noisy and high pressure operating environment, in well cementation measuring truck, to the extremely-low density slurry stream in well cementing operation
The long-range cementing equipment monitoring of Cheng Shixian, long-range liquid automatic control, remote automatic-taking-water, remote auto are pre- for ash, remote auto
Remote auto discharge capacity is mixed, so that well cementing operation has been strided forward major step in security fields, also makes the automation technolo water entirely cemented the well
It is flat to greatly improve.
The present invention is achieved by the following technical solutions: a kind of long-range extremely-low density automatic control system, including control
Unit, water valve, flowmeter, grey valve, slurry mixing tank, liquidometer, circulating pump and plunger pump, water supply pass sequentially through the flowmeter and water
Valve enters in slurry mixing tank, and the water supply of real-time monitoring is fed back to control unit by flowmeter, enters slurry mixing tank by grey valve for ash
In, the liquidometer for measuring slurry mixing tank level value is located in slurry mixing tank, and circulating pump is used for the slurry of slurry mixing tank, and control unit is logical
The revolution and default discharge capacity for crossing control plunger pump realize automatic displacement on demand, preset the ratio of mud and level value in a control unit,
Water requirement is calculated and needs ash quantity, to control the aperture of water valve and grey valve, described control unit includes remote control unit
With equipment end control unit, remote control unit is connected with equipment end control unit.
Preferably, the remote control unit is formed by far controlling PLC processor and remote-control operation screen, by remote-control operation
Long-range control is realized in the operation of screen.
Preferably, the equipment end control unit is located at well cementing operation scene, and equipment end control unit is by equipment end PLC
Device and equipment end operator control panel composition are managed, the field control of cementing equipment is realized by the operation to equipment end operator control panel.
Preferably, described remote control PLC processor one end is connect with remote-control operation screen, remote to control the PLC processor other end and set
Standby end PLC processor connection, remote-control operation screen are communicated by Ethernet and equipment end control unit.
Preferably, it is additionally provided with PTZ camera at cementing equipment scene, for being monitored to cementing equipment scene, and led to
It crosses hard disk video recorder to be recorded, video can export, for checking field operation situation and slurry mixing effect in the future.
Compared with prior art, beneficial effects of the present invention: making operator far from noisy and high pressure operating environment,
It cements the well in measuring truck, long-range cementing equipment monitoring, long-range liquid level are automatic to be realized to the extremely-low density slurry process in well cementing operation
Control, remote automatic-taking-water, remote auto lead well cementing operation in safety for ash, remote auto premix remote auto discharge capacity
Domain has strided forward major step, also greatly improves the automation technolo level entirely cemented the well.
Detailed description of the invention
Fig. 1 is the functional block diagram of long-range extremely-low density automatic control system.
Specific embodiment
As shown in Figure 1, a kind of long-range extremely-low density automatic control system, including control unit, water valve 1, grey valve 2, flow
Meter 3, slurry mixing tank 4, liquidometer 5, circulating pump 11 and plunger pump 6, water supply passes sequentially through the flowmeter 3 and water valve 1 enters slurry
In tank 4, the water supply of real-time monitoring is fed back to control unit by flowmeter 3, is entered in slurry mixing tank 4 for ash by grey valve 2, is used for
The liquidometer 5 of metering 4 level value of slurry mixing tank is located in slurry mixing tank 4, and circulating pump 11 is used for the slurry of slurry mixing tank 4, and control unit is logical
The revolution and default discharge capacity for crossing control plunger pump 6 realize automatic displacement on demand, preset the ratio of mud and level value in a control unit,
Water requirement is calculated and needs ash quantity, to control the aperture of water valve 1 and grey valve 2, described control unit includes that long-range control is single
Member and equipment end control unit, remote control unit are connected with equipment end control unit.
The remote control unit is formed by far controlling PLC processor 8 and remote-control operation screen 10, by remote-control operation screen 10
Operation realize long-range control.
The equipment end control unit is located at well cementing operation scene, and equipment end control unit is by 7 He of equipment end PLC processor
Equipment end operator control panel 9 forms, and the field control of cementing equipment is realized by the operation to equipment end operator control panel 9.
Described remote 8 one end of control PLC processor is connect with remote-control operation screen 10, remote to control 8 other end of PLC processor and equipment end
PLC processor 7 connects, and remote-control operation screen 10 is communicated by Ethernet and equipment end control unit.
It is additionally provided with PTZ camera at cementing equipment scene, for being monitored to cementing equipment scene, and passes through hard disk
Video recorder is recorded, and video can export, for checking field operation situation and slurry mixing effect in the future.
Remote-control operation screen 10 and remote control PLC processor 8 are mounted in long-range control cabinet, are connected between the two by cable.
Communication connection is carried out by cable between remote control PLC processor 8 and equipment end PLC processor 7 in long-range control cabinet, to make
Long-range control cabinet can be operated and be controlled to equipment end PLC processor 7 by remote-control operation screen 10.Equipment end PLC processing
Device 7 is connect with equipment end operator control panel 9 by cable.Cement density used in low-density well cementing is approximately 1g/cc, and the density of water is
1g/cc, the two are added by a certain percentage.Level value and the ratio of mud are first set in a control unit, open extremely-low density control
System processed, equipment end PLC processor 7 are calculated automatically by parameters such as level value, 4 volume of slurry mixing tank and the ratio of muds of setting
Required water requirement and ash quantity is needed, control unit opens water valve 1, grey valve 2, realizes water inlet with into ash, flowmeter 3 is by real-time monitoring
Water supply feed back to control unit, the real-time level value in slurry mixing tank 4 is fed back to control unit by liquidometer 5, according to needing water
Amount, 1 aperture of automatic control water valve.According to the real-time level value that liquidometer 5 detects, 2 aperture of grey valve is automatically controlled.
Long-range control cabinet top panel configures a ultra-thin notebook, real by the network PTZ camera assembled in equipment
Now the video datas such as equipment slurry mixing tank 4, wellsite operating environment are monitored, and are recorded by hard disk video recorder,
On-site supervision video and construction data can be real-time transmitted to information centre by 3G/4G or satellite communication.For remotely monitoring
Center personnel carries out the data analysis and data sharing at scene.
Claims (5)
1. a kind of long-range extremely-low density automatic control system, including control unit, water valve, flowmeter, grey valve, slurry mixing tank, liquid level
Meter, circulating pump and plunger pump, water supply passes sequentially through the flowmeter and water valve enters in slurry mixing tank, and flowmeter is by real-time monitoring
Water supply feeds back to control unit, is entered in slurry mixing tank for ash by grey valve, the liquidometer for measuring slurry mixing tank level value is set
In slurry mixing tank, circulating pump is used for the slurry of slurry mixing tank, and control unit is realized by the revolution and default discharge capacity of control plunger pump
Automatic displacement on demand, it is characterised in that: preset the ratio of mud and level value in a control unit, water requirement is calculated and needs ash
Amount, so that the aperture of water valve and grey valve is controlled,
Described control unit includes remote control unit and equipment end control unit, remote control unit and equipment end control unit
It is connected.
2. long-range extremely-low density automatic control system according to claim 1, it is characterised in that: the remote control unit
It is formed by far controlling PLC processor and remote-control operation screen, long-range control is realized by the operation to remote-control operation screen.
3. long-range extremely-low density automatic control system according to claim 2, it is characterised in that: the equipment end control is single
Member is located at well cementing operation scene, and equipment end control unit is made of equipment end PLC processor and equipment end operator control panel, by setting
The field control of cementing equipment is realized in the operation of standby end operator control panel.
4. long-range extremely-low density automatic control system according to claim 3, it is characterised in that: the remote control PLC processing
Device one end is connect with remote-control operation screen, and the remote PLC processor other end of controlling is connect with equipment end PLC processor, and remote-control operation screen is logical
It crosses Ethernet and equipment end control unit communicates.
5. long-range extremely-low density automatic control system according to claim 1, it is characterised in that: cementing equipment scene also
Equipped with PTZ camera, for being monitored to cementing equipment scene, and recorded by hard disk video recorder, video can be led
Out, for checking field operation situation and slurry mixing effect in the future.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007739.8A CN109491318A (en) | 2019-01-04 | 2019-01-04 | A kind of long-range extremely-low density automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910007739.8A CN109491318A (en) | 2019-01-04 | 2019-01-04 | A kind of long-range extremely-low density automatic control system |
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| CN201910007739.8A Pending CN109491318A (en) | 2019-01-04 | 2019-01-04 | A kind of long-range extremely-low density automatic control system |
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