CN1415966A - On-line gas survey system for drilling mud - Google Patents
On-line gas survey system for drilling mud Download PDFInfo
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- CN1415966A CN1415966A CN 02135856 CN02135856A CN1415966A CN 1415966 A CN1415966 A CN 1415966A CN 02135856 CN02135856 CN 02135856 CN 02135856 A CN02135856 A CN 02135856A CN 1415966 A CN1415966 A CN 1415966A
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Abstract
This invention relates to well drilling mud on-line gas test system composed of mud drainage device, mud on-line sampler, mud no-line degasser, sample gas process unit, gas chromatograph and gas abnormal sampler, connecting with each other orderly. It's automatic control part is made up of a data server, controller interface, chromatogram working station, well recording station and HUB, in which, the data server sends a control signal to the mud on-line degasser and liquid, gas samplers by the controller interface to realize automatic operation, automatic sampling and starting/stopping degasser, which can on-line detect hydrocarbon gas or detect many different un-hydrocarbon gas on-line.
Description
(1) technical field
The present invention relates to the gas logging technology field in the petroleum geology exploration drilling process, particularly is a kind of on-line gas survey system for drilling mud.
(2) background technology
The petroleum geology exploration gas logging technology, in drilling process, the gas composition in its mud is carried out check and analysis exactly, find that with this prospect pit hydrocarbon stratum shows, and judge the degree of depth, thickness etc. of its hydrocarbon zone, thereby obtain the geologic information really and accurately of every mouthful of prospect pit.The gas-detecting device of using at situ of drilling well mainly is that hydrocarbon gas is carried out online detection at present.Non-hydrocarbon gases is detected then because of content is single, and minimum detection value is low excessively, so can not reflect the gas componant in the mud exactly, and will non-hydrocarbon gas accurately be detected, will use artificial sampling method, deliver in the laboratory, carry out check and analysis by various gas instrument devices.Though indoor check and analysis precision is higher, sampling, preservation, sample presentation are all very inconvenient, and time lag is too many, and be more difficult synchronous corresponding with drilling depth.By retrieval, find four pieces of patent documentations, wherein No. 89106120 patents are based on the principle design that all gases component all has the characteristic infrared absorption line of oneself, 92230231.6 and No. 97204881.2 patents can only be used for the hydrocarbon gas detection, 98117977.0 number patent only is used for detecting the chloride ion content of drilling fluid, other technical characterictic of these patents is also all inequality with the present invention.
(3) summary of the invention
Purpose of the present invention just is to provide a kind of distinguished on-line gas survey system for drilling mud.Can online detection hydrocarbon gas, again can the multiple non-hydrocarbon gases component of online detection, can also overcome prior art is easily sneaked into outside air when liquid sampling and degassing sampling shortcoming.Can set sampling condition on request, the gaseous sample of gathering mud sample on time, according to quantity automatically and spinning off from mud is for further analyzing in the laboratory.
Above-mentioned purpose is realized by following technical proposals:
This gas examining system comprises by mud drainage system, mud on-line sampler, the online degasifier of mud, sample gas processing unit, gas chromatograph and gas anomaly sampler and is connected to each other successively.Its automatic control section is made up of data server (SERVER), control unit interface, well logging instrument workstation, chromatographic work station and HUB.Its process flow feature is that the mud drainage system is drainage part mud from drilling tool, the mud on-line sampler of flowing through again, enter the online degasifier of mud, the sample gas of coming out from degasifier through the sample gas processing unit, enters gas chromatograph again, enters the gas anomaly sampler again.Automatically control section be a cover based on the data acquisition control system under the SERVER/CLIENT pattern, data server (SERVER), well logging instrument workstation, gas chromatograph, chromatographic work station are realized interconnection based on ICP/IP protocol by HUB.Like this, be control data corporation with data server (SERVER), realized sharing and data processing of data by LAN (Local Area Network).Data server (SERVER) constantly reads the data of well logging instrument workstation, chromatographic work station and gas chromatograph, and according to imposing a condition, send control signal by control unit interface to mud on-line sampler, the online degasifier of mud and gas anomaly sampler, realize operation automatically.
Mud drainage system in the above-mentioned on-line gas survey system for drilling mud is made up of main drainage tube line, bypass line, clear water pipeline and one group of operation valve.The main drainage tube line hangs by double end elevator and fill-up line and is fixed on original built on stilts groove, and its head end and end respectively have an operation valve.Between two operation valves first bypass line is set, second bypass line is set after the bottom valve.First bypass line through an operation valve to the mud Buffer Pool.The second bypass line end connects degasifier, and the head end place connects the clear water pipeline.An operation valve is arranged on the clear water pipeline.
Mud on-line sampler mechanical part in the above-mentioned on-line gas survey system for drilling mud is made up of drainage pipeline, electric ball valve, flexible pipe, sampling jar and overflow vent.The drainage pipeline is at topmost, the drainage BOP have eight mud sample taps respectively eight electric ball valves below it be connected.Outlet below each electric ball valve is all passed through a flexible pipe and is connected with a sampling jar.The upper top of each sampling jar all has an overflow vent.
The online degasifier mechanical part of mud in the above-mentioned on-line gas survey system for drilling mud is made up of power and running part, degasifier main body, mud sample inlet and waste liquid outlet etc.Power and running part are at topmost, and entrance and exit places degasifier main body below and side respectively.The degasifier main body is made up of housing, top cover, base, baffle plate, dwang, stirring rod, fluid level gauge, pressure transducer and sample gas outlet.The baffle plate level is installed in the housing inner chamber first half, and dwang places on the housing lumen centers axis, and stirring rod is installed in the dwang Lower Half, and fluid level gauge is installed in hull outside, and pressure transducer and sample gas outlet all are installed on the top cover.The center of motor mounting on top cover, shaft coupling place and dwang and motor shaft are connected into one below the top cover.
Gas anomaly in above-mentioned on-line gas survey system for drilling mud sampling apparatus machine part by support, crossbeam, geometrical clamp, get gas cylinder, bottle switch, electronic sample valve, flexible pipe, admission line and the pipeline of giving vent to anger and form.Upper and lower crossbeam is installed on the left and right perpendicular support, gets gas cylinder for four and is installed on the upper and lower crossbeam by geometrical clamp and bolt, gets the upper and lower of gas cylinder and respectively adorns a bottle switch and electronic sample valve.Last sample valve upper end is connected with outlet nozzle on the pipeline of giving vent to anger by flexible pipe, and the lower end of following sample valve is connected with admission piece on the admission line by flexible pipe.The admission line level is put bottom, and the pipeline level of giving vent to anger places topmost, and is all parallel with crossbeam.
Sample gas processing unit in the online gas examining system of above-mentioned drilling mud is made up of one-level drying tube, cold-trap, secondary drying pipe, aspiration pump, frequency converter, flow stabilizing valve and gas meter.Each ingredient is connected to each other successively.
After implementing technique scheme, this system can online detection hydrocarbon gas, again can online detection CO, CO
2, Ar, O
2, N
2, H
2S, He, H
2Deng non-hydrocarbon gases.Its drainage system and degasifier can prevent that mud sample from sneaking into outside air, have overcome prior art one big shortcoming.Energy is automatic deaerating continuously, and degassing efficiency is adjustable, and degasifier can automatic start-stop.Liquid sampling and gas sample can both be on time, finish automatically according to quantity.Both can onlinely detect, and also can be the laboratory true and reliable fluid sample and gaseous sample is provided.Its accuracy of detection is higher than prior art, and sense cycle further shortens, and test sample and well depth have good correspondence.This system both can work online separately, also can with the comprehensive logging instrument use that links.
(4) description of drawings
Accompanying drawing 1 is formation of the present invention and process flow block scheme.
Accompanying drawing 2 is system of the present invention control principle block schemes.
Accompanying drawing 3 is mud drainage system architectural feature synoptic diagram of the present invention.
Accompanying drawing 4 is mud on-line sampler architectural feature front views of the present invention.
Accompanying drawing 5 is that the A of Fig. 4 is to view.
Accompanying drawing 6 is mud sample degasifier architectural feature synoptic diagram of the present invention.
Accompanying drawing 7 is that sample gas processing unit of the present invention constitutes and the process flow block scheme.
Accompanying drawing 8 is gas anomaly sampler structure feature front views of the present invention.
Accompanying drawing 9 is B-B sectional schematic diagrams of Fig. 8.
In the accompanying drawing 3, the 1st, drill string, the 2nd, built on stilts groove, the 3rd, fill-up line, the 4th, main drainage tube line, the 5th, the double end elevator, the 6th, main control valve, the 7th, drill bit, the 8th, the degasifier operation valve, 9 is first bypass line, the 10th, the suction pit operation valve, 11 is second bypass line, the 12nd, clear water pipeline, the 13rd, clear water operation valve.
In the accompanying drawing 4,5, the 14th, mud drainage pipeline, the 15th, electric ball valve, the 16th, flexible pipe, the 17th, overflow vent, the 18th, sampling jar.
In the accompanying drawing 6, the 19th, motor, the 20th, top cover, the 21st, shaft coupling, the 22nd, pressure transducer, the 23rd, degasifier housing, the 24th, slurry waste fluid outlet, the 25th, flexible pipe, the 26th, U type pipe, the 27th, base, the 28th, mud sample inlet tube, the 29th, stirring rod, the 30th, dwang, the 31st, fluid level gauge, the 32nd, baffle plate, the 33rd, sample gas outlet, C are the mud sample chambeies, and D is the gaseous sample chamber.
In the accompanying drawing 8,9, the 34th, the pipeline of giving vent to anger, the 35th, flexible pipe, the 36th, electronic sample valve, the 37th, geometrical clamp, the 38th, set bolt, the 39th, crossbeam, the 40th, bottle switch, the 41st, support, the 42nd, admission line, 43～46 is respectively that 1#～4# gets gas cylinder.
(5) embodiment
As shown in Figure 1, 2, this system is made up of mud drainage system, mud on-line sampler, the online degasifier of mud, sample gas processing unit, chromatograph and gas anomaly sampler.Its automatic control section is made up of data server (SERVER), control unit interface, chromatographic work station, well logging instrument workstation and HUB.The technical characterictic of above-mentioned each ingredient is seen respectively shown in Fig. 3～9.
The process flow and the automatic control process of this system are:
As shown in Figure 1, 2, mud to be detected is delivered to the mud on-line sampler by drainage system under the situation of complete air-isolation; Mud by mud on-line sampler realization abnormal conditions and setting well depth is taken a sample automatically; Again mud sample is sent into degasifier, the gas in not sneaking into the following mud of outside air state spins off, and the mud after the degassing is got back to vibratory screening apparatus and returned suction pit; The sample gas of deviating from is through the sample gas processing unit, carries out entering gas chromatograph after drying, the freezing and flow control; By gas chromatograph sample gas is carried out on-line analysis.When (show of oil and gas is arranged) appearred in abnormal conditions, the gas anomaly sampler was in time stored sample gas automatically.
Data server (SERVER) is set, realizes data communication, extract the gas of gas chromatograph and survey data by LAN (Local Area Network) and gas chromatograph; Make the well logging instrument workstation networking of data server and situ of drilling well by network, extract parameters such as drilling well well depth, steam piano dash, late well depth, and data such as well depth, pump dash and gas survey parameter are gathered by data server.By comparing with the setting threshold value, send control signals to control unit interface by data server, finish mud sample and take a sample automatically, realize the start and stop of degasifier motor, finish the abnormal gas sampling.
As shown in Figure 3, the mud drainage system drains into degasifier continuously with mud sample and carries out automatic deaerating.Because the drainage point of main drainage tube line 4 is lower than 0.5～0.7 meter of drilling mud outlet, sneaks into mud sample so can prevent outside air effectively.Its workflow is: the drilling mud sample at first enters main drainage tube line 4, and regulates its total flow by main control valve 6.Be divided into two-way then, wherein most of mud sample enters first bypass line 9, and flows back to the mud Buffer Pool through operation valve 10; Have only the sub-fraction mud sample to filter the bulky grain landwaste, regulate its flow through operation valve 8 again and meet the demands, enter second bypass line 11, flow to degasifier at last by the filter sand net.After stopping boring, connect clear water pipeline 12, and open purge control valve 13, clean second bypass line 11 and the degasifier with clear water.
Shown in Fig. 2,4,5, this mud sample sampler is gathered mud sample automatically according to the gentle survey abnormal show of depthkeeping, for laboratory high accuracy analysis instrument provides analytic sample.Its trend of work is: before the work, set the gas survey that needs unusual sampling and show threshold value, set the interval well depth that needs sampling, setting spherical valve 15 is from being opened to the time of shutoff.In the course of work, data server (SERVER) constantly reads from the real-time gas of gas chromatograph and surveys data, and compares with the gas survey threshold value of setting.In case the gas measured value surpasses setting value, data server sends control signal to control unit interface, and data server picks up counting simultaneously.Send control signal to the relay card by control unit interface again, after relay snaps fit onto order, to switching signal of electric ball valve 15 outputs.After spherical valve was opened, mud sample began to flow to sampling jar 18 via flexible pipe 16.Sampling jar has been expired, and unnecessary mud is discharged from overflow vent 17, also the air in flexible pipe 16, the sampling jar 18 is discharged simultaneously.In case timing reaches setting value, data server sends control signal and turn-offs electric ball valve 15.So just finished the process of a unusual sampling.Meanwhile, data server constantly reads the well depth signal from comprehensive logging instrument, when well depth meets the condition of interval well depth sampling of setting, sends control signal to control unit interface, and its process is identical with above-mentioned unusual sampling process.
As shown in Figure 6, online degasifier of mud and air insulated under the situation of not sneaking into outside air, realize continuous automatic deaerating, for gas chromatograph provides true and reliable branch gassing sample.The trend of work of this degasifier is: mud sample enters the mud sample chamber C of degasifier main body from induction pipe 28, alternating current generator 19 drives stirring rod 29 high speed rotating, driving the mud sample spiral rises, behind impingement baffles 32, mud splashes, the gas that discharges enters the air collecting chamber D on top from the aperture on the baffle plate 32, is expelled to the sample gas processing unit from sample gas outlet 33 again.After mud sample in the C chamber fully outgased, slurry waste fluid was discharged from outlet 24, and returns suction pit through flexible pipe 25 and U type pipe 26.U-shaped pipe 26 can prevent that outside air from sneaking into the degasifier inner chamber from outlet.Monitor inner chamber mud level height by fluid level gauge 31.Pressure transducer 22 is used for monitoring the chamber pressure size, and with the rate of air sucked in required of pressure data signal controlling sample air pump, basicly stable to keep chamber pressure.Utilize frequency converter to realize the rotational speed regulation of motor 19.
As shown in Figure 7, the sample gas processing unit is made up of I and II drying tube, cold-trap, aspiration pump, frequency converter, flow stabilizing valve, gas meter.One-level secondary drying pipe adopts the cotton filling method to the rough drying of sample; Cold-trap adopts semiconductor refrigerating technology to the sample gas freeze drying; Aspiration pump is extracted into the sample gas in the degasifier in the gas chromatograph; Frequency converter carries out coarse adjustment to rate of air sucked in required; Flow stabilizing valve adopts needle-valve, maximum current stabilization range 800ml/min.Flowmeter in conjunction with needle-valve the flow of sample gas is carried out fine tuning and flow shows.
Shown in Fig. 2,8,9, the effect of gas anomaly sampler is exactly when gas is surveyed data exception (show of oil and gas is arranged), gathers mud sample gas automatically according to imposing a condition, and is laboratory high accuracy analysis instrument sampling gas sample.Its trend of work is: before the operation, set the unusual threshold value of gas side of getting gas automatically, set the electronic air valve of getting from being opened to the time of closing.After sampler brought into operation, data server (SERVER) constantly read the gas of gas chromatograph and surveys data, and relatively judged with the unusual threshold value of setting.Surpass setting value in case the gas that reads is surveyed numerical value, data server sends control signal to control unit interface, picks up counting simultaneously.The output control level was to the relay card after control interface received signal, and relay card output signal is to electronic sample valve 36, and upper and lower two the electronic air valves 36 of getting that make each get gas cylinder are opened simultaneously.In case after timing reached setting value, data server sent control signal, make each get upper and lower two the electronic sample valves 36 of gas cylinder and close simultaneously.Like this, the control procedure of a gas anomaly sampling finishes, and unusual gas sample promptly is stored in to be got in the gas cylinder.
Claims (5)
1. on-line gas survey system for drilling mud, it is characterized in that comprising the mud drainage system, the mud on-line sampler, the online degasifier of mud, the sample gas processing unit, gas chromatograph and gas anomaly sampler, and be connected to each other successively, its automatic control section is by data server, control unit interface, well logging instrument workstation, chromatographic work station and HUB form, the mud drainage system is drainage part mud from drilling tool, the mud on-line sampler of flowing through again, enter the online degasifier of mud, the sample gas of coming out from degasifier is again through the sample gas processing unit, enter gas chromatograph, enter the gas anomaly sampler again, its automatic control section is core with the data server, according to imposing a condition, by control unit interface to the mud on-line sampler, online degasifier of mud and gas anomaly sampler are sent control signal, realize operation automatically.
2. on-line gas survey system for drilling mud according to claim 1, it is characterized in that the mud drainage system is by main drainage tube line (4), bypass line (9), (11), clear water pipeline (12) and one group of operation valve (6), (8), (10), (13) form, main drainage tube line (4) hangs by double end elevator (5) and fill-up line (3) and is fixed on the built on stilts groove (2), its head end and end respectively have an operation valve (6), (8), first bypass line (9) is set between two operation valves, bottom valve (8) is provided with second bypass line (11) afterwards, first bypass line (9) process operation valve (10) is to the pond stock tank, second bypass line (11) end connects degasifier, the head end place connects clear water pipeline (12), and individual operation valve (13) is arranged on the clear water pipeline (12).
3. on-line gas survey system for drilling mud according to claim 1, it is characterized in that mud on-line sampler mechanical part is made up of drainage pipeline (14), electric ball valve (15), flexible pipe (16), sampling jar (18) and overflow vent (17), drainage pipeline (14) is at topmost, its the bottom have eight mud sample taps respectively eight electric ball valves (15) below it be connected, outlet below each electric ball valve (15) is all passed through a flexible pipe (16) and is connected with a sampling jar (18), and each sampling jar (18) top all has an overflow vent (17).
4. on-line gas survey system for drilling mud according to claim 1, it is characterized in that the online degasifier mechanical part of mud is by power and running part, the degasifier main body, mud sample inlet and waste liquid outlet are formed, power and running part are at topmost, mud entrance and outlet place main body below and side respectively, the degasifier main body is by housing (23), top cover (20), base (27), baffle plate (32), dwang (30), stirring rod (29), fluid level gauge (31), pressure transducer (22) and sample gas outlet (33) are formed, baffle plate (32) level is installed in housing (23) the inner chamber first half, dwang (30) places on the housing lumen centers axis, stirring rod (29) is installed in dwang (30) Lower Half, fluid level gauge (31) is installed in housing (23) outside, pressure transducer (22) and sample gas outlet (33) all are installed on the top cover (20), motor (19) is installed in the center above the top cover (20), and shaft coupling (21) places and dwang (30) and motor shaft is connected into one below the top cover (20).
5. on-line gas survey system for drilling mud according to claim 1, it is characterized in that gas anomaly sampler mechanical part is by support (41), crossbeam (39), geometrical clamp (37), get gas cylinder (43)～(46), bottle switch (40), electronic sample valve (36), flexible pipe (35), admission line (42) and the pipeline of giving vent to anger (34) are formed, on, sill (39) is installed in a left side, on the right perpendicular support (41), getting gas cylinder (43)～(46) for four is installed in by geometrical clamp (37) and set bolt (38), on the sill (39), get gas cylinder on, a bottle switch (40) and electronic sample valve (36) are respectively adorned in the below, last sample valve (36) upper end is connected with outlet nozzle on the pipeline of giving vent to anger (34) by flexible pipe (35), following sample valve (36) lower end is connected with admission piece on the admission line (42) by flexible pipe (35), admission line (42) level places bottom, pipeline (34) level of giving vent to anger places topmost, and is all parallel with crossbeam (39).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021358567A CN1173176C (en) | 2002-12-07 | 2002-12-07 | On-line gas survey system for drilling mud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021358567A CN1173176C (en) | 2002-12-07 | 2002-12-07 | On-line gas survey system for drilling mud |
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| CN1415966A true CN1415966A (en) | 2003-05-07 |
| CN1173176C CN1173176C (en) | 2004-10-27 |
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|---|---|---|---|
| CNB021358567A Expired - Fee Related CN1173176C (en) | 2002-12-07 | 2002-12-07 | On-line gas survey system for drilling mud |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1576848B (en) * | 2003-06-27 | 2010-05-12 | 乔洛格公司 | System for degassing muds and for analysing the gases contained in the muds |
| CN102486087A (en) * | 2010-12-06 | 2012-06-06 | 淮南矿业(集团)有限责任公司 | Gas discharging hole logging unit fixing device |
| CN104005761A (en) * | 2013-02-26 | 2014-08-27 | 中国石油化工股份有限公司 | Underground drilling fluid draining method |
| CN105019841A (en) * | 2015-08-21 | 2015-11-04 | 上海神开石油设备有限公司 | Drilling fluid quantitative degassing device |
| CN105092412A (en) * | 2014-04-15 | 2015-11-25 | 中国石油化工股份有限公司 | System and method for determining gas content in drilling fluid |
| CN105298467A (en) * | 2014-07-30 | 2016-02-03 | 中国人民解放军重庆通信学院 | Drilling machine parameter monitoring system for distributed data collection |
| CN112282729A (en) * | 2020-10-20 | 2021-01-29 | 中国石油集团渤海钻探工程有限公司 | Gas logging data detection experimental device for simulating borehole environment |
| CN112611826A (en) * | 2020-12-31 | 2021-04-06 | 武汉泰特沃斯科技有限公司 | Online gas chromatography remote monitoring method based on Internet of things technology |
| CN112903847A (en) * | 2021-01-21 | 2021-06-04 | 思凡(上海)石油设备有限公司 | Real-time monitoring and logging system for oil and gas in formation fluid |
| CN113504334A (en) * | 2021-06-18 | 2021-10-15 | 西安恩诺维新石油技术有限公司 | Pressurized annulus sampling analysis system and method for three-super gas well |
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| CN100350128C (en) * | 2006-01-20 | 2007-11-21 | 中国石化集团胜利石油管理局地质录井公司 | Portable infrared logging instrument for drilling well |
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2002
- 2002-12-07 CN CNB021358567A patent/CN1173176C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1576848B (en) * | 2003-06-27 | 2010-05-12 | 乔洛格公司 | System for degassing muds and for analysing the gases contained in the muds |
| CN102486087A (en) * | 2010-12-06 | 2012-06-06 | 淮南矿业(集团)有限责任公司 | Gas discharging hole logging unit fixing device |
| CN104005761B (en) * | 2013-02-26 | 2017-02-01 | 中国石油化工股份有限公司 | Underground drilling fluid draining method |
| CN104005761A (en) * | 2013-02-26 | 2014-08-27 | 中国石油化工股份有限公司 | Underground drilling fluid draining method |
| CN105092412A (en) * | 2014-04-15 | 2015-11-25 | 中国石油化工股份有限公司 | System and method for determining gas content in drilling fluid |
| CN105298467A (en) * | 2014-07-30 | 2016-02-03 | 中国人民解放军重庆通信学院 | Drilling machine parameter monitoring system for distributed data collection |
| CN105019841A (en) * | 2015-08-21 | 2015-11-04 | 上海神开石油设备有限公司 | Drilling fluid quantitative degassing device |
| CN112282729A (en) * | 2020-10-20 | 2021-01-29 | 中国石油集团渤海钻探工程有限公司 | Gas logging data detection experimental device for simulating borehole environment |
| CN112282729B (en) * | 2020-10-20 | 2022-03-11 | 中国石油集团渤海钻探工程有限公司 | Gas logging data detection experimental device for simulating borehole environment |
| CN112611826A (en) * | 2020-12-31 | 2021-04-06 | 武汉泰特沃斯科技有限公司 | Online gas chromatography remote monitoring method based on Internet of things technology |
| CN112903847A (en) * | 2021-01-21 | 2021-06-04 | 思凡(上海)石油设备有限公司 | Real-time monitoring and logging system for oil and gas in formation fluid |
| CN112903847B (en) * | 2021-01-21 | 2022-08-26 | 思凡(上海)石油设备有限公司 | Real-time monitoring and logging system for oil and gas in formation fluid |
| CN113504334A (en) * | 2021-06-18 | 2021-10-15 | 西安恩诺维新石油技术有限公司 | Pressurized annulus sampling analysis system and method for three-super gas well |
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