CN109283016A - Multifunction automatic sample pretreatment unit for Produced Water In Oil-gas Fields, Ngi on-line monitoring - Google Patents

Multifunction automatic sample pretreatment unit for Produced Water In Oil-gas Fields, Ngi on-line monitoring Download PDF

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Publication number
CN109283016A
CN109283016A CN201811217747.7A CN201811217747A CN109283016A CN 109283016 A CN109283016 A CN 109283016A CN 201811217747 A CN201811217747 A CN 201811217747A CN 109283016 A CN109283016 A CN 109283016A
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CN
China
Prior art keywords
pipeline
valve
sampling
water
oil
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CN201811217747.7A
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Chinese (zh)
Inventor
刘建民
史晓龙
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SHAANXI RUIHAI LIJUN ENVIRONMENT TECHNOLOGY CO LTD
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SHAANXI RUIHAI LIJUN ENVIRONMENT TECHNOLOGY CO LTD
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Priority to CN201811217747.7A priority Critical patent/CN109283016A/en
Publication of CN109283016A publication Critical patent/CN109283016A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18Water

Abstract

The invention discloses a kind of multifunction automatic sample pretreatment units for Produced Water In Oil-gas Fields, Ngi on-line monitoring, water sampling pipeline assembly is arranged three groups and is connected to sampling Trunk Line, clear water flushing pipeline component is connected to sampling Trunk Line, sampling Trunk Line successively passes through pressure regulator valve, flow control valve, pressure sensor, flow sensor, after temperature sensor the first via after pretreatment water sample pipeline respectively with main screen filter, standby granular membrane connects, second tunnel is through first check-valve, second check-valve is connect with the first ball valve, first ball valve is connect with discharge pipe line, main screen filter, standby granular membrane passes through the first control valve respectively, pipeline is connected to after second control valve, using water sample pipeline after connection pretreatment after the second ball valve, air blowback wash pipeline assembly respectively with main screen filter, standby the screen to filtrate Device connection.Integrated design of the present invention, it is compact-sized, standard sample interface and outer drainage interface are reserved, in-site installation is convenient for.

Description

Multifunction automatic sample pretreatment unit for Produced Water In Oil-gas Fields, Ngi on-line monitoring
Technical field
The invention belongs to Produced Water In Oil-gas Fields, Ngi on-line monitoring technique fields, and in particular to one kind exists for Produced Water In Oil-gas Fields, Ngi The multifunction automatic sample pretreatment unit of line monitoring.
Background technique
Produced Water In Oil-gas Fields, Ngi is a kind of special sewage, contains solid impurity, liquid impurity, dissolved gas and dissolved salts Etc. more complicated heterogeneous system, including silt particle, various corrosion products and dirt, sulfate reducing bacteria, saprophytic bacteria and heavy oils Deng;Due to the geological conditions of each oil gas field, base oil properties, defeated and separation condition the different differences of collection, various regions Produced Water In Oil-gas Fields, Ngi Water quality be not quite similar, generally have the following characteristics that higher complicated component, high oil-containing, high salinity, water temperature, strong corrosive and Radioactivity.With deepening continuously for exploitation of oil-gas field, the waste water of this special nature is continued for increasing.If direct outlet, Problem of environmental pollution very serious will be not only caused, but also wastes valuable water resource again.Oil and gas enterprise passes through at present Advanced water treatment technology is after oiliness sewage treatment, and reinjection into reservoir both can be to avoid environment to supplement the pressure on stratum again Pollution, and a large amount of water resource can be saved.Produced Water In Oil-gas Fields, Ngi is handled, and meets requirement of the technique re-injection to water quality Afterwards, stratum depths is recycled by high pressure, not only realizes the Sustainable Exploitation of oil gas field, and economic effect can be improved Benefit, save the cost.
Produced Water In Oil-gas Fields, Ngi processing and re-injection technique in, need to before produced water treatment, processing after, the differences such as before re-injection The water quality parameters such as pH value, oil concentration, solid suspension concentration, the iron concentration of the operation stages such as processing, dosing carry out quasi- True measurement and analysis.Since Produced Water In Oil-gas Fields, Ngi is at underground deep layer, property is complicated and changeable, different disposal operation stage Change of water quality is big, and the measured medium in each stage contains variable grain object impurity, is not only easy the measuring flume of blocking measuring instrument, also It may cause electrode or photometer damage;The mixed sewage of this special nature easily precipitates easy attachment, in sample detection process In easily cause the fouling of instrument electrode and photosensitive detection device failure, make instrument real-time online detection performance and accuracy dislike Change, lead to measurement data bias distortion, cannot accurate response practical variation of water in real time, influence treatment effect.
Produced Water In Oil-gas Fields, Ngi monitoring water quality on line system, it is desirable that the transient change of each processing stage water quality is reflected rapidly, These water quality parameter indexs have important guiding value in daily production operation, simultaneously for reinjected water water quality parameter country ring Guarantor department needs real time on-line monitoring, it is ensured that it is recycled into the water quality reaching standard of underground, in order to avoid pollute underground water and environmental disruption.
There has been no one kind to sample automatically for existing market, the switching of multichannel water sample;Pretreatment necessary and appropriate, it is automatic to adjust Voltage-controlled stream;And the automatic clear water for having sample lines, filter and measuring unit rinses, the integration of compressed air blowing function The multi-functional sampling pretreatment device of structure meets conditions above requirement.Produced Water In Oil-gas Fields, Ngi monitoring water quality on line system is generally adopted Used in a set of on-line monitoring instrument of each measuring configuration and single sampling line, automatic cleaning, pressure regulation control generally cannot achieve Stream, when long-play, cause instrument fault, accelerate the aging of electrode photosensitive component, and be not able to satisfy water quality and supervise online The need of work of instrument is surveyed, the maintenance workload and investment operating cost that the above causes on-line monitoring system excessive make oil Gas field recovered water monitoring water quality on line system can not operate normally steadily in the long term;The production of oil gas field waterflooding extraction is also influenced simultaneously Normal process operation, reduce production efficiency.
Currently, many Produced Water In Oil-gas Fields, Ngi on-line monitorings in China field still only relies on single instrument or grab sampling monitoring Means carry out manual cleaning maintenance to on-line monitoring system by the working experience of site operation personnel.It is this only to be passed through with individual The judgement for lacking scientific basis is tested, along with the flowing, break tour operation and factor and individual subjective factor of field personnel, accuracy It is difficult to secure.
Shown in sum up, development is a set of to have real-time automatic sampling switching, can satisfy sample pressure regulation, filtering and flow control System, and can automatic clear water rinse, the Produced Water In Oil-gas Fields, Ngi multifunction automatic sample pretreatment unit of air blowback, by gesture must Row.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of for the multi-functional of Produced Water In Oil-gas Fields, Ngi on-line monitoring Automatic sampling pretreatment unit.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The embodiment of the present invention provides a kind of multifunction automatic sample pretreatment dress for Produced Water In Oil-gas Fields, Ngi on-line monitoring It sets, which includes that pipeline assembly is washed in water sampling pipeline assembly, clear water flushing pipeline component, air blowback, and the water sample is adopted Collection pipeline assembly is arranged three groups and is connected to sampling Trunk Line, and the clear water flushing pipeline component and sampling Trunk Line connect Logical, the sampling Trunk Line is successively after pressure regulator valve, flow control valve, pressure sensor, flow sensor, temperature sensor Water sample pipeline is connect with main screen filter, standby granular membrane the first via respectively after pretreatment, second the first non-return of tunnel Valve, second check-valve are connect with the first ball valve, and first ball valve is connect with discharge pipe line, the main screen filter, standby sieve Web filter is connected to pipeline after the first control valve, the second control valve respectively, pre-processes using connecting after the second ball valve Water sample pipeline afterwards, the air blowback are washed pipeline assembly and are connect respectively with main screen filter, standby granular membrane.
In above scheme, the water sampling pipeline assembly includes sample lines, first manual ball valve, third non-return Valve, first filter, the first pneumatic diaphragm valve group, set gradually in the sample lines first manual ball valve, third check-valves, First filter, the first pneumatic diaphragm valve group and with sampling Trunk Line be connected to.
In above scheme, the clear water flushing pipeline component includes clear water flushing pipeline, the second manual ball valve, the 6th non-return Valve, the 4th filter, the 4th pneumatic diaphragm valve group set gradually the second manual ball valve in the clear water flushing pipeline, the 6th stop It returns valve, the 4th filter, the 4th pneumatic diaphragm valve group and is connected to sampling Trunk Line.
In above scheme, it includes compressed air line, air blowback sweeping, first that pipeline assembly is washed in the air blowback Air back valve, third control valve, the second air back valve, the 4th control valve, pressure regulation filter, third ball valve, the compression Air pipe line is connect by third ball valve, pressure regulation filter with air blowback sweeping, and the first of the air blowback sweeping Road is connect by the 4th control valve, the second air back valve with standby granular membrane, and the second tunnel passes through third control valve, the first sky Gas check-valves is connect with main screen filter.
In above scheme, the main screen filter is connect by the first blowdown pipeline with the second tunnel for sampling Trunk Line, First blowdown pipeline is disposed with the 7th check-valves, the 5th pneumatic diaphragm valve group;The standby granular membrane passes through the Two blowdown pipelines are connect with the second tunnel of sampling Trunk Line, and second blowdown pipeline is disposed with the 8th check-valves, the 6th Pneumatic diaphragm valve group.
In above scheme, which further includes embedded scm control module, the embedded scm control module Respectively with the 5th pneumatic diaphragm valve group, the 6th pneumatic diaphragm valve group, the 4th pneumatic diaphragm valve group, integrated diaphragm valve group controller Connection, the embedded scm control module are also connect by long-range wire communication or wireless telecommunications with remote supervisory station.
In above scheme, the integration diaphragm valve group controller respectively with first in every road water sampling pipeline assembly The connection of pneumatic diaphragm valve group.
In above scheme, which further includes shell, the water sampling pipeline assembly, clear water flushing pipeline component, sky Gas blowback is washed pipeline assembly and is respectively provided with inside the shell.
In above scheme, the shell includes stainless steel casing body, malfunction indicator lamp, start-stop button, operation touch-screen;Institute After the compressed air blowback pipe interface of general stainless steel cutting ferrule connection is arranged in the left side for stating stainless steel casing body, sampling pre-processes Water outlet mouthpiece, on-line monitoring instrument drainage interface;Right side be respectively set sample lines interface, pipe interface, sample lines interface, Clear water flushing pipeline interface, sample water outlet pipe interface;The operation touch-screen is located at the front of stainless steel casing body, described The upside or downside of operation touch-screen is arranged in malfunction indicator lamp, start-stop button.
Compared with prior art, integrated design of the present invention, compact-sized, flexible for installation, device is reserved standard sample and is connect Mouth and outer drainage interface are convenient for in-site installation;It samples pretreated sample and passes through stainless steel pipe interface and on-line instrument instrument Table connection, air blowback are washed interface and are connected using general quick coupling.
Detailed description of the invention
Fig. 1 for the embodiment of the present invention provide it is a kind of for Produced Water In Oil-gas Fields, Ngi on-line monitoring multifunction automatic sample locate in advance Manage the pipeline structure schematic diagram of device;
Fig. 2 for the embodiment of the present invention provide it is a kind of for Produced Water In Oil-gas Fields, Ngi on-line monitoring multifunction automatic sample locate in advance Manage the structural schematic diagram of shell in device;
Fig. 3 for the embodiment of the present invention provide it is a kind of for Produced Water In Oil-gas Fields, Ngi on-line monitoring multifunction automatic sample locate in advance Manage the control flow chart in device.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of multifunction automatic sample pretreatment dress for Produced Water In Oil-gas Fields, Ngi on-line monitoring It sets, as shown in Figure 1, the device includes that pipeline assembly is washed in water sampling pipeline assembly, clear water flushing pipeline component, air blowback, The water sampling pipeline assembly is arranged three groups and be connected to sampling Trunk Line 201, the clear water flushing pipeline component and It samples Trunk Line 201 to be connected to, the sampling Trunk Line 201 successively passes through pressure regulator valve 23, flow control valve 24, pressure sensor 25, after flow sensor 26, temperature sensor 27 first via after pretreatment water sample pipeline 303 respectively with main screen filter 30, standby granular membrane 31 connects, and the second tunnel is connect through first check-valve 46, second check-valve 45 with the first ball valve 501, described First ball valve 501 is connect with discharge pipe line 105, and the main screen filter 30, standby granular membrane 31 are respectively by the first control It is connected to pipeline 302 after valve 36 processed, the second control valve 37, using water sample pipeline 303 after connection pretreatment after the second ball valve 38, The air blowback is washed pipeline assembly and is connect respectively with main screen filter 30, standby granular membrane 31.
The water sampling pipeline assembly includes sample lines 101, first manual ball valve 1, third check-valves 6, first Filter 15, the first pneumatic diaphragm valve group 19 set gradually first manual ball valve 1, third check-valves in the sample lines 101 6, first filter 15, the first pneumatic diaphragm valve group 19 and with sampling Trunk Line 201 be connected to.
The water sampling pipeline assembly includes three tunnels, and first via water sampling pipeline assembly includes sample lines 101, the One manual ball valve 1, third check-valves 6, first filter 15, the first pneumatic diaphragm valve group 19, in the sample lines 101 successively Be arranged first manual ball valve 1, third check-valves 6, first filter 15, the first pneumatic diaphragm valve group 19 and with sampling Trunk Line 201 connections;Second tunnel water sampling pipeline assembly includes sample lines 102, third manual ball valve 2, the 4th check-valves 7, second Filter 16, the second pneumatic diaphragm valve group 20 set gradually third manual ball valve 2, the 4th check-valves in the sample lines 102 7, the second filter 16, the second pneumatic diaphragm valve group 20 and with sampling Trunk Line 201 be connected to;Third road water sampling pipeline group Part includes sample lines 103, the 4th manual ball valve 3, the 5th check-valves 8, third filter 17, third pneumatic diaphragm valve group 21, The 4th manual ball valve 3, the 5th check-valves 8, third filter 17, third pneumatic diaphragm are set gradually in the sample lines 103 Valve group 21 and with sampling Trunk Line 201 be connected to.
The clear water flushing pipeline component includes clear water flushing pipeline 104, the second manual ball valve 4, the 6th check-valves 9, Four filters 18, the 4th pneumatic diaphragm valve group 22 set gradually the second manual ball valve the 4, the 6th in the clear water flushing pipeline 104 Check-valves 9, the 4th filter 18, the 4th pneumatic diaphragm valve group 22 and with sampling Trunk Line 201 be connected to.
It includes compressed air line 401, air blowback sweeping 402, the first air that pipeline assembly is swept in the air blowback Check-valves 39, third control valve 40, the second air back valve 41, the 4th control valve 42, pressure regulation filter 43, third ball valve 44, The compressed air line 401 is connect by third ball valve 44, pressure regulation filter 43 with air blowback sweeping 402, the sky The first via of gas blowback sweeping 402 is connect by the 4th control valve 42, the second air back valve 41 with standby granular membrane 31, Second tunnel is connect by third control valve 40, the first air back valve 39 with main screen filter 30.
The main screen filter 30 is connect by the first blowdown pipeline 503 with the second tunnel for sampling Trunk Line 201, described First blowdown pipeline 503 is disposed with the 7th check-valves 32, the 5th pneumatic diaphragm valve group 34;The standby granular membrane 31 is logical It crosses the second blowdown pipeline 502 and is connect with the second tunnel for sampling Trunk Line 201, second blowdown pipeline 502 is disposed with the Eight check-valves 33, the 6th pneumatic diaphragm valve group 35.
Sampling pretreatment entire flow of the invention is as described below: 1# sample lines 101,2# sample lines 102,3# sampling Pipeline 103 be three sample lines, respectively before produced water treatment, processing after, the water sample connecting line before re-injection, by first Manual ball valve 1, third manual ball valve 2, the 4th manual ball valve 3, third check-valves 6, the 4th check-valves 7, the 5th check-valves 8, the One filter 15, the second filter 16, third filter 17, the first pneumatic diaphragm valve group 19, the second pneumatic diaphragm valve group 20, Then three pneumatic diaphragm valve groups 21 are connect with sampling Trunk Line 201.Sample Trunk Line 201 and pressure regulator valve 23, flow control valve 24 Connection, by pressure sensor 25, flow sensor 26, temperature sensor 27 is connect with filter inleting pipe 301.Pass through Five control valves 28, the 6th control valve 29 and main screen filter 30, standby granular membrane 31, filtered water sample is by the first control After valve 36 processed, the second control valve 37, it is connected to pipeline 302, using water sample pipeline after connection pretreatment after the second ball valve 38 303, supply on-line monitoring instrument.Water sample after detection finally enters discharge pipe line by the 9th check-valves 10, the 4th ball valve 5 105。
It is as described below that clear water of the invention rinses process: clear water flushing pipeline 104 is stopped by the second manual ball valve the 4, the 6th Valve 9, the 4th filter 18, the 4th pneumatic diaphragm valve group 22 are returned, is then connect with sampling Trunk Line 201.Clear water passes through main sampling After pipeline 201, by pressure regulator valve 23, flow control valve 24 is connected, and is passed by pressure sensor 25, flow sensor 26, temperature Sensor 27 is connect with filter inleting pipe 301.It is standby by the 5th control valve 28, the 6th control valve 29 and main screen filter 30 Granular membrane 31, ejected wash water water sample are connected to pipeline 302 after the first control valve 36, the second control valve 37, using Water sample pipeline 303 after connection pretreatment, supplies on-line monitoring instrument after two ball valves 38.For cleaning the measurement of on-line monitoring instrument The equipment such as slot, sensor, the water sample after cleaning enter draining by first check-valve 46, second check-valve 45, the first ball valve 501 Pipeline 105.
Air blowback process of the invention is as described below: compressed air gas source is connected by compressed air line 401, then By third ball valve 44, pressure regulation filter 43, air blowback sweeping 402 is separately connected third control valve 40, the first air stops Valve 39, the second air back valve 41 are returned, blowback washes compressed air and enters granular membrane 30, standby granular membrane 31, passes through height Air blowback is pressed, the attachment sundries in granular membrane is rinsed, the sewage after flushing passes through the 7th check-valves 32, the 8th non-return Valve 33, the 5th pneumatic diaphragm valve group 34, the 6th pneumatic diaphragm valve group 35 connect the first blowdown pipeline 503, the second blowdown pipeline 502, and pass through the 9th check-valves 10, the 4th ball valve 5, the sewage after air recoil is washed finally enters discharge pipe line 105.
Pipeline emptying process of the invention is as described below: when needing to be vented, opening the first blow valve 11, the second blow valve 12, third blow valve 13, the 4th blow valve 14, by the residual water sample in pipeline, by the 9th check-valves 10, the 4th ball valve 5, then It is connect with outer discharge pipe line 105.
The device further includes embedded scm control module 602, the embedded scm control module 602 respectively with 5th pneumatic diaphragm valve group 34, the 6th pneumatic diaphragm valve group 35, the 4th pneumatic diaphragm valve group 22, integrated diaphragm valve group controller 601 connections, the embedded scm control module 602 also pass through long-range wire communication 605 or wireless telecommunications 606 and long-range prison 603 connection of control station.
The embedded scm control module 602 includes I/O board, CPU module, communication module, power module, storage Module and expansion board clamping;Complete pneumatic diaphragm valve, pressure regulator valve, filter, the data sampling and processings such as pressure sensor, storage and Working condition is controlled, display terminal is technical grade touch screen.
The integration diaphragm valve group controller 601 respectively with the first pneumatic diaphragm in every road water sampling pipeline assembly Valve group 19 connects.
The device further includes shell, the water sampling pipeline assembly, clear water flushing pipeline component, the anti-blow line of air Component is respectively provided with inside the shell.
As shown in Fig. 2, the shell includes stainless steel casing body 912, malfunction indicator lamp 910, start-stop button 911, operation Touch screen 909;The compressed air blowback pipeline that general stainless steel cutting ferrule connection is arranged in the left side of the stainless steel casing body 912 connects Water outlet mouthpiece 907, on-line monitoring instrument drainage interface 908 after mouth 906, sampling pretreatment;Right side is respectively set sample lines and connects Mouth 902, pipe interface 902, sample lines interface 903, clear water flushing pipeline interface 904, sample water outlet pipe interface 905; The operation touch-screen 909 is located at the front of stainless steel casing body 912, and the malfunction indicator lamp 910, start-stop button 911 are arranged In the upside or downside of operation touch-screen 909.
By all pipe-line systems and each control unit it is integrated inside housings, according to different pipeline process layered arrangements, Accomplish rational and orderly and save the confined space, it is ensured that is intuitively easy to repair and maintenance.Shell use SU316 stainless steel material, anti-corrosion, It is beautiful.Built-in electric control system uses IP68 shell individual packages, it is ensured that not by leaking and humidity is influenced.
The front installation malfunction indicator lamp 910 of the stainless steel casing guard box 912, indicates for device abnormal alarm, Can by malfunction indicator lamp 910 be always on or stroboscopic judgment means total generic failure;Green start stop operation button 911, for outside Hardware operation button can start or stop device work by human intervention;All monitorings of the device control information, such as valve shape State, the devices internal information such as the parameters such as flow pressure temperature and setting sampling pretreatment time, frequency can be touched by terminal operation It touches screen 909 to complete, not only working state of device can also be carried out to be illustrated dynamic prison with display operation flow chart Depending on parameter is arranged in the inquiry record that operator can be convenient.
Pipe interface is respectively arranged in the two sides of the stainless steel casing guard box 912, and left side is arranged general stainless steel cutting ferrule and connects Water outlet mouthpiece 907, on-line monitoring instrument drainage interface 908 after the compressed air blowback pipe interface 906 that connects, sampling pretreatment; What be can be convenient by stainless steel cutting ferrule connection type connect with the sampling of external water quality online monitoring instruments instrument and discharge outlet, And compressed air blowback pipe interface 906 can be connect with compressed air source or air accumulator.Stainless steel cutting ferrule connects site operation Safe ready is particluarly suitable for carrying out in oil gas field danger zone.Each sample lines interface, including 1# sample lines is arranged in right side The outer row pipeline of interface 902,2# pipe interface 902,3# sample lines interface 903, clear water flushing pipeline interface 904, sample water connects Mouth 905, pipe interface is all made of socket joint gluing slip-knot mode and connects, and can quickly connect with sampling line, site operation is simple Safety.
The stainless steel casing guard box 912 is the design of openable cabinet door, and inside is divided into three layers, and each element divides in order It is not installed on backboard, touch screen and indicator light, button, two side opening installation pipeline connectors are installed in door-plate aperture.
As shown in figure 3, sampling preprocessing process of the invention is as follows:
Step 1, the control module 602 of 603 computer of remote supervisory station and the present apparatus establishes connection by communication modes, and Issue open command;Or device panel button 911 can be passed through;Or the terminal operation touch screen 909 of the present apparatus, starting, Stop the present apparatus.According to Fig. 2 Produced Water In Oil-gas Fields, Ngi multifunction automatic sample pretreatment unit embedded scm after device starting Control flow chart carries out automatic sampling switch operating;
Step 2, it is received and is instructed by control module 602, according to the sample frequency of setting, 1# sample lines 101,2# sampling Pipeline 102,3# sample lines 103, the water sample connecting line respectively before produced water treatment, after processing, before re-injection are started to work, The first pneumatic diaphragm valve group 19, the second pneumatic diaphragm valve group 20, third pneumatic diaphragm valve group 21 control under respectively to processing Before, processing after, the water before re-injection be sampled, by the sample after sampling after pressure regulation flow control with main screen filter 30, Standby granular membrane 31 connects, and filtered water sample is then connected to on-line monitoring instrument and is specifically detected, sampling process tool Body are as follows:
Water samples pipeline 101 by 1# before handling, and according to the sample frequency of setting, opens pneumatic diaphragm valve 19, and open Beginning clocks;When setting sampling time then, close the first pneumatic diaphragm valve group 19;Open simultaneously the second pneumatic diaphragm valve group 20,2# samples pipeline 102 and starts to sample water after processing at this time, and the start recording time.Similarly, when the sampling of setting Time then, closes the second pneumatic diaphragm valve group 20, opens simultaneously third pneumatic diaphragm valve group 21;3# samples pipeline 103 at this time Start to sample the water before re-injection, and so on.
Step 3, it at the end of each sampling period, according to the preset time, opens clear water and rinses diaphragm valve 22, clearly Wash water carries out clear water flushing by clear water flushing pipeline 104, to sample lines 201, while clear water will pass through filter inleting pipe Road 301 is rinsed filter and water after filter pipeline 402, by the in-line meter sampling pipe 401 of connection, to on-line computing model Measuring flume, the sensor of table are rinsed.
Step 4, it after head loss is transfinited after monitoring control devices to plugged filter or filtering, is wanted according to preset It asks, detects air pressure, and close the first control valve of water after filter 36, second of main screen filter 30, standby granular membrane 31 Control valve 37;Then it opens under third control valve 40, the second air back valve 41, then the blowback effect of pressure-air, to main sieve Web filter 30, standby granular membrane 31 carry out air blowback flushing, and the sewage after flushing opens the 5th gas by overflow passage Dynamic diaphragm valve group 34, the 6th pneumatic diaphragm valve group 35, are discharged into outlet pipeline for impurity, and the filter after rinsing is again introduced into Normal filtration mode.
Step 5, when device needs to shut down, overhauls, safeguards, pass through remote site 603 or the start-stop button of the present apparatus 911 pairs of devices carry out shutdown operation, then turn off installation's power source.After checking that power supply closes device shutdown, closing 1#, 2#, First manual ball valve 1, third manual ball valve 2, the 4th manual ball valve 3 of 3# sample lines 101,102,103;Simultaneously close off clear water Then second manual ball valve 4 of flushing pipeline 104 opens the first blow valve 11, the second blow valve 12, third blow valve 13, Four blow valves 14, the 5th blow valve 47;Residual sample in pipeline is emptied, corresponding repair and maintenance can be carried out at this time.
Step 6, when the malfunction indicator lamp of device 910 flashes and indicates failure, the present apparatus enters automatic interrupt status, together When issue halt instruction, device is shut down;The detailed reason of the system failure can be checked by live touch screen 909, and according to prompt Information carries out malfunction elimination.
Since Produced Water In Oil-gas Fields, Ngi on-line computing model instruments and meters is precision optics water quality monitoring instrument, have sternly to sample Harsh technical requirements, including floccule, the particulate matter etc. in sample time, sample strain, flow, temperature and sample, this A little technical indicators have significant effect the measurement accuracy of on-line monitoring instrument, or even will cause instrument and meter damage, blocking pipe Road cisco unity malfunction.But current China's oil gas field extraction is containing solid impurity, liquid impurity, dissolved gas and dissolving salt The more complicated heterogeneous system such as class, including silt particle, various corrosion products and dirt, sulfate reducing bacteria, saprophytic bacteria and mink cell focus Class etc.;If this special water quality, the pretreatment appropriate without necessity certainly will will cause Produced Water In Oil-gas Fields, Ngi water quality to exist The various measuring instrument cisco unity malfunctions of line monitoring system, operate normally entire on-line monitoring system can not steadily in the long term; Also the normal process operation that will affect the production of oil gas field waterflooding extraction, reduces production efficiency.
After multichannel water sampling pipeline assembly and clear water flushing pipeline component of the invention is converged by pneumatic diaphragm valve group Main sample lines are connected, is realized after the control of pneumatic diaphragm valve and automatically switches sampling;Clear water clean-up line is through diaphragm valve group It is connected to main sampling pipeline, clear water flushing is carried out to each sampling pipeline, diaphragm valve group and main sampling conduit using clear water.Main sampling Pipeline is connect with automatic pressure regulator, is carried out pressure regulation to the medium of all sampling lines and is stablized, to meet the work of secondary filter Demand carries out secondary filtration to sampling medium after pressure regulation and flow control, and two secondary filters are active and standby design, can Switching uses when meeting Maintenance and Repair.Test sample after secondary filtration, supply on-line computing model instruments and meters use.Second level Filter realizes automatic air blowback by compressed air, and the outer flowing line of filter blowdown pipeline and described device connects, It carries out realizing automatic pollution discharge after blowback is washed by the pneumatic diaphragm valve of overflow port.
The present invention switches automatic sampling using multiple spot, realizes sampling auto-changeover control pneumatic diaphragm by embedded scm Valve group, manual ball valve, primary filter and connecting tube realize the automatic switchover in sampling water route, and can sample frequency with manual setting Rate.Sample is after pressure regulation stabilization and flow control, after being filtered by secondary filter, passes through stainless steel pipeline and supplies on-line computing model Table uses;And it can solve and interfere with each other and adhere to precipitating between monitoring sampling line under the severe water quality situation of oil gas field Blockage problem, while Produced Water In Oil-gas Fields, Ngi multifunction automatic sample pretreatment dress is realized using clear water flushing and compressed air blowback The automatic cleaning set.It is that the sample long-time delay precipitating in avoiding device is attached when device needs maintenance down or has a power failure suddenly , pipeline and plugged filter are caused, needs to open blow valve in time, residual liquid in pipeline and filter is put Sky, and with clear water auto-flushing, thus ensuring equipment normal work when being again started up operation.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims (9)

1. a kind of multifunction automatic sample pretreatment unit for Produced Water In Oil-gas Fields, Ngi on-line monitoring, which is characterized in that the dress It sets and washes pipeline assembly, the water sampling pipeline group including water sampling pipeline assembly, clear water flushing pipeline component, air blowback Part is arranged three groups and is connected to sampling Trunk Line, and the clear water flushing pipeline component is connected to sampling Trunk Line, described to adopt Successively the first via passes through sample Trunk Line after pressure regulator valve, flow control valve, pressure sensor, flow sensor, temperature sensor Water sample pipeline is connect with main screen filter, standby granular membrane respectively after pretreatment, and the second tunnel is stopped through first check-valve, second It returns valve to connect with the first ball valve, first ball valve is connect with discharge pipe line, the main screen filter, standby granular membrane point It is not connected to pipeline after the first control valve, the second control valve, water sample pipeline after being pre-processed using connection after the second ball valve, The air blowback is washed pipeline assembly and is connect respectively with main screen filter, standby granular membrane.
2. the multifunction automatic sample pretreatment unit according to claim 1 for Produced Water In Oil-gas Fields, Ngi on-line monitoring, It is characterized in that, the water sampling pipeline assembly includes sample lines, first manual ball valve, third check-valves, the first mistake Filter, the first pneumatic diaphragm valve group set gradually first manual ball valve, third check-valves, the first filtering in the sample lines Device, the first pneumatic diaphragm valve group and with sampling Trunk Line be connected to.
3. the multifunction automatic sample according to claim 1 or 2 for Produced Water In Oil-gas Fields, Ngi on-line monitoring pre-processes dress It sets, which is characterized in that the clear water flushing pipeline component includes clear water flushing pipeline, the second manual ball valve, the 6th check-valves, Four filters, the 4th pneumatic diaphragm valve group, set gradually in the clear water flushing pipeline the second manual ball valve, the 6th check-valves, 4th filter, the 4th pneumatic diaphragm valve group and with sampling Trunk Line be connected to.
4. the multifunction automatic sample pretreatment unit according to claim 3 for Produced Water In Oil-gas Fields, Ngi on-line monitoring, It is characterized in that, it includes compressed air line, air blowback sweeping, the first air non-return that pipeline assembly is washed in the air blowback Valve, third control valve, the second air back valve, the 4th control valve, pressure regulation filter, third ball valve, the compressed air line It is connect by third ball valve, pressure regulation filter with air blowback sweeping, the first via of the air blowback sweeping passes through the Four control valves, the second air back valve are connect with standby granular membrane, and the second tunnel passes through third control valve, the first air back valve It is connect with main screen filter.
5. the multifunction automatic sample pretreatment unit according to claim 4 for Produced Water In Oil-gas Fields, Ngi on-line monitoring, It is characterized in that, the main screen filter is connect by the first blowdown pipeline with the second tunnel for sampling Trunk Line, described first Blowdown pipeline is disposed with the 7th check-valves, the 5th pneumatic diaphragm valve group;The standby granular membrane passes through the second sewage pipe Line is connect with the second tunnel of sampling Trunk Line, and second blowdown pipeline is disposed with the 8th check-valves, the 6th pneumatic diaphragm Valve group.
6. the multifunction automatic sample pretreatment unit according to claim 5 for Produced Water In Oil-gas Fields, Ngi on-line monitoring, It is characterized in that, the device further includes embedded scm control module, the embedded scm control module is respectively with Five pneumatic diaphragm valve groups, the 6th pneumatic diaphragm valve group, the 4th pneumatic diaphragm valve group, integrated diaphragm valve group controller connection, institute Embedded scm control module is stated also to connect by long-range wire communication or wireless telecommunications with remote supervisory station.
7. the multifunction automatic sample pretreatment unit according to claim 6 for Produced Water In Oil-gas Fields, Ngi on-line monitoring, It is characterized in that, the integration diaphragm valve group controller respectively with the first pneumatic diaphragm in every road water sampling pipeline assembly Valve group connection.
8. the multifunction automatic sample pretreatment unit according to claim 7 for Produced Water In Oil-gas Fields, Ngi on-line monitoring, It is characterized in that, the device further includes shell, the water sampling pipeline assembly, clear water flushing pipeline component, air blowback are washed Pipeline assembly is respectively provided with inside the shell.
9. the multifunction automatic sample pretreatment unit according to claim 8 for Produced Water In Oil-gas Fields, Ngi on-line monitoring, It is characterized in that, the shell includes stainless steel casing body, malfunction indicator lamp, start-stop button, operation touch-screen;The stainless steel The compressed air blowback pipe interface of general stainless steel cutting ferrule connection is arranged in the left side of outer housing, sampling is discharged after pre-processing and connects Mouth, on-line monitoring instrument drainage interface;Sample lines interface, pipe interface, sample lines interface, clear water punching is respectively set in right side Wash pipe interface, sample water outlet pipe interface;The operation touch-screen is located at the front of stainless steel casing body, and the failure refers to Show that the upside or downside of operation touch-screen is arranged in lamp, start-stop button.
CN201811217747.7A 2018-10-18 2018-10-18 Multifunction automatic sample pretreatment unit for Produced Water In Oil-gas Fields, Ngi on-line monitoring Pending CN109283016A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109856187A (en) * 2019-02-01 2019-06-07 中国石油天然气集团公司 A kind of gas pipeline hydrocarbon dew point on-line real-time measuremen method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109856187A (en) * 2019-02-01 2019-06-07 中国石油天然气集团公司 A kind of gas pipeline hydrocarbon dew point on-line real-time measuremen method

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