CN202187760U - Real-time monitoring logging system for oil gas of formation fluid - Google Patents
Real-time monitoring logging system for oil gas of formation fluid Download PDFInfo
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Abstract
The utility model belongs to the field of oil-gas well data acquisition and monitoring in petroleum exploration and development, relates to a real-time monitoring logging system for oil gas of a formation fluid, and comprises a semi-permeable membrane degasser, a heating gas pipeline, a carrier gas module, a carrier gas pressure stabilizing and filtering module, a spectrum gas analyzer, a front-end working station, a data transmission and monitoring module and a comprehensive logging instrument. The real-time monitoring logging system for the oil gas of the formation fluid is capable of effectively separating hydrocarbon gases from drilling fluid. The heating pipeline is capable of ensuring that hydrocarbon components in a liquid state at a normal temperature is transmitted in a gas state. The spectrum gas analyzer theoretically can detect all gases except inert gases in real time. The system is integrated on the site, and the pipeline delay time is shortened. The device can be widely applied in the logging field and also can be integrated in a set of independent service system, thereby having broad application prospects and good economic and social benefits.
Description
Technical field
The utility model belongs to oil gas well data acquisition and monitoring field in the petroleum exploration and development; Relate in particular to a kind of compound logging gas analyzing apparatus, can be matched in comprehensive logging system, also can be integrated into one and overlap independently gas analysis system; Its major function is in drilling process; To gas entrained in the drilling fluid, particularly the hydrocarbon gas component carries out quantified extract, and carries out a kind of device that real-time continuous is analyzed.
Background technology
In the prior art; The method of the conventional fluid oil and gas detection of using in the well logging industry is: adopt the electronic degasser that is installed in the drilling fluid exit; Through contained gas in the mechanical agitation isolated in form fluid; Air extractor is delivered to the indoor gas survey device of well logging appearance through the tracheae line and is analyzed, and obtains C usually
1-nC
5The hydrocarbon component data, the well logging personnel make an explanation according to these data and analyze, thereby judge the character of formation fluid.
Present existing related patent U.S. Patent No. is put down in writing as follows:
Patent 1: " on-line gas survey system for drilling mud (02135856.7) ", the utility model is a kind of on-line gas survey system for drilling mud, belongs to petroleum geology exploration gas logging technology field.This system is by mud drainage system, mud on-line sampler, the online degasser of mud, sample gas processing unit, gas chromatograph, gas anomaly sampler, and connection mutually successively.Its automatic control section is made up of data server, control unit interface, chromatographic work station, well logging appearance work station and HUB.According to imposing a condition, data server sends control signal through control unit interface to the online degasser of mud and liquid, gas sampler, realizes operation automatically, accomplishes sampling, degasser start and stop etc. automatically.This system can online detection hydrocarbon gas, again can online detection non-hydrocarbons multiple gases, can also mud sample of not sneaking into outside air and the gaseous sample that from mud, spins off be provided to the laboratory.Its online gas is surveyed precision and is higher than prior art.Can use separately, also can unite use with comprehensive logging instrument.The characteristic of this patent is: though this patent can quantitatively outgas to drilling mud; But the influenced factor of churned mechanically degassing mode efficient is more; Can not guarantee the true ratio composition of gas, can not guarantee the gas analysis quality, so designed the gas anomaly sampler.Simultaneously, because the heavy hydrocarbon component is soluble in water, this system can not guarantee the separative efficiency of such gas.This system can not guarantee that the component that normal temperature is in a liquid state carries out the gaseous state transmission, and the complex structure of this system is installed and used comparatively loaded down with trivial details.
Patent CN02286909.3 (oil drilling gas detection logging device), patent CN200510111405.3 (method for on-line spectral determining oily gas in the drilling fluid) have put down in writing the method for direct detection drilling fluid gas; But this patent mainly detects light hydrocarbon component volatilization composition not soluble in water in the drilling fluid; Its accuracy of detection is low; Can not detect concrete component content, be difficult to detect for heavy ends alkane component soluble in water, the information of being obtained is qualitative information.
Patent CN200620080616.5, CN200510047069.0, CN200910048424.4 etc. have put down in writing the gas in the method measuring drilling fluid of using spectral detection such as method of infrared spectrophotometry, Raman spectrum analysis method; But separation or analytical equipment that these devices use common electronic degasser to carry out drilling fluid gas basically are installed in the compound logging instrument room; Or use directly detects the mode of drilling fluid free gas; Or with an organic solvent carry out hydrocarbon gas extraction; Or carry out the analyzing and testing that standard specimen Allocation Analysis mode of comparing is carried out hydrocarbon gas; These methods all have certain limitation: the complicated operation that has, the influenced factor that has technological requirement big, that have is strict, have can only carry out qualitative analysis and can not analyze concrete composition; And all can not guarantee the quantitative analysis of drilling fluid, can not effectively discern, can not guarantee the actual gas ratio in the fluid the hydrocarbon component that heavy component soluble in water and normal temperature are in a liquid state.Can not adapt to current oil gas accurately exploration and the demand of explaining.
Abroad on gas separation; Adopt diffusion barrier to carry out drilling fluid gas Study on Separation and originate in the seventies in last century; And applied for the patent of some successively, like patent US3830106, US3926561; US5442968, multinomial patent such as US20050160801 has all been put down in writing and how to be used diffusion barrier to realize the technology of the separation that drilling fluid gas is stopped.External patent has been put down in writing the diffusion barrier degasser structure based on diffusion barrier, and gas separated is sent into checkout gear.But in the produced on-site, under the certain situation of certain, the inside and outside gas concentration difference of pressure, the effect of pellicle divided gas flow receives Influence of Temperature, proofreaies and correct so need temperature to carry out degassing efficiency, with accurate quantification evaluating oil character.In addition, because C
6Later heavy ends are in a liquid state at normal temperatures, so it is extremely important to keep these components to be the transmission of gaseous state, otherwise gas analysis will produce error.Be not documented in the interior serviceability temperature sensor of gas fractionation unit in these patents and proofread and correct drilling fluid temperature, also record is not carried out heat treated to gas transmission line.
The US20050160801 patent has been put down in writing with diffusion barrier and has been carried out technology and the device that drilling fluid gas separates, and what mainly describe is the structure and the installation of device.Use online gas drying pipeline in the device; Through the film divided gas flow, send into detecting unit again, this patent is not described the unit nature and function that gas component detects; Do not specifically describe control and data-transformation facility yet; The described equipment of patent to the detection of drilling fluid temperature, to reach the correction to gas fractionation unit efficient, does not have the gas transmission line heater yet in addition.The main feature that this patent is different from these patents is a built-in temperature pick up in the pellicle degasser, detects drilling fluid temperature, proofreaies and correct degasser efficient, reaches the purpose to the oil gas exact evaluation.This patent has used heater simultaneously, and can quantitatively control temperature, because different oil-gas components has different boiling points, so can make the oil gas that needs to detect keep gaseous state, carries out component analysis thereby can carried to get in the chromatograph by carrier gas.This patent is comparatively extensive to the carrier gas that pellicle uses in addition, can be gases such as air, nitrogen, helium, has application conditions widely.
U.S. Pat 5469917; US007111503B2; Non-patent literature " ADVANCES IN CHROMATOGRAPHIC ANALYSIS OF HYDROCARBON GASES IN DRILLING FLUIDS-THE APPLICATION OF SEMIPERMEABLE MEMBRANE TECHNOLOGY TO HIGH SPEED TCD GAS CHROMATOGRAPHY ", a kind of method of utilizing membrane separation technique to carry out oil and gas detection has been put down in writing and described to " with boring the progress that gassiness mud is explained ": utilize semipermeable membrane direct separation gas from drilling fluid.In conjunction with little gas chromatograph analysis of common chromatogram or high speed TCD (thermal conductivity detector), can analyze the hydrocarbon gas component, even can analyze from methane (C
1) to octane (C
8) alkane compound.Comprise nitrogen, carbon dioxide and aromatic hydrocarbon, for example benzene and toluene etc.These records show that semipermeable membrane degasser direct separation gas from drilling fluid is feasible; But the gas transport pipeline is not carried out heat treated in record and the description, can not guarantee that the hydrocarbon component that normal temperature is in a liquid state gets into the gas chromatograph analysis with gaseous form.In addition, the analysis of chromatogram or little gas-chromatography has periodically, can not guarantee the real-time analysis of hydro carbons.
To sum up, the deficiency that gas analyzing apparatus exists in the prior art is: the first, and receive real-time influence factor big when in drilling fluid, outgasing, can not guarantee the quantitative analysis of drilling fluid; The second, the diffusion barrier degasser of foreign patent record does not have serviceability temperature calbrating film separative efficiency, possibly have influence on the oil gas evaluation result.The 3rd, because different solubility light, the heavy hydrocarbon component, churned mechanically gas separating method has changed the ratio of gas componant artificially, causes constructional error or mistake; The 4th, because the heavy hydrocarbon component is in a liquid state at normal temperatures, the defeated mode of traditional gas can not guarantee that heavy ends transmit with gaseous form, causes analyzing data error, maybe can not analyze the heavy hydrocarbon component, has reduced the information about fluids of obtaining; The 5th, traditional gas is surveyed device can only analyze C usually
1～nC
5, the information about fluids of acquisition is less.The 6th, traditional chromatogram has 30 seconds to the 120 seconds analytical cycles that do not wait, and the analysis of gas does not have continuity, is difficult to adapt to the requirement of the meticulous exploration of oil gas.
The utility model content
The utility model is in order to solve the technical problem that exists in the prior art, and the inventor is through studying for a long period of time, researched and developed a kind of formation fluid oil gas to be monitored the system of well logging in real time,
The technical problem that the utility model solved is following:
1, current common drilling fluid degasser can not realize that drilling fluid quantitatively outgases, and receives the problem that the various factors influence is prone to form abnormal data when perhaps quantitatively outgasing;
2, can not from drilling fluid, effectively separate heavy hydrocarbon component soluble in water, can not keep actual gas component ratio problem in the drilling fluid;
3, do not have serviceability temperature calbrating film separative efficiency, influence oil gas character evaluation result.
4, can not analyze the heavy hydrocarbon component that normal temperature is in a liquid state, release the problem that insufficient information is provided for the hydrocarbon stratum hydrolysis.
5, common chromatogram has analytical cycle, can not detect oil gas information in real time, is unfavorable for the problem of the meticulous exploration of oil gas.
The utility model is in order to address the above problem, and the technical scheme of being taked is following,
Formation fluid oil gas is monitored logging system in real time, and said system comprises degas module, gas analysis unit and CPU;
Said degas module is used for contained gas in the separation of the fluid, and it comprises degasser and heating module; Said degasser built-in temperature sensor to detect current drilling fluid temperature, is used to proofread and correct degassing efficiency; Said heating module is used to make the heavy hydrocarbon component to transmit with the gas mode;
Said gas analysis unit is a gas analyzer, each component in the analytical gas;
Said central processing unit controls degas module and gas analysis unit, the line data of going forward side by side is handled;
Said degas module output is connected with said gas analysis unit; The output of said gas analysis unit is connected with described CPU; Said CPU is connected with said degas module.
Core inventive point of the utility model is: the heating module in the said degas module is the heating pipeline; Said heating pipeline comprises heatproof tracheae line and heat tape; Said heat tape adopts winding or parallel parcel mode to be laid on the heatproof tracheae line, and wraps up insulation layer and overcoat successively in heatproof tracheae line outside; Said heat tape maintains the temperature between 50 ℃～80 ℃ with the power supply of 24～36V low tension;
Said degasser adopts a kind of in pellicle degasser or the quantitative electronic degasser.
The utility model comprises a gas analysis unit in order to accomplish the purpose of gas detecting.Said gas analysis unit is used for gas component in the real-time test fluid, and it is a gas analyzer; Said gas analyzer if be spectroanalysis instrument, can detect gas component in real time, and theory can detect all gas component except that inert gas, here is mainly used in to detect the hydro carbons oil-gas component; If when adopting gas chromatographicanalyzer or portable fast chromatographic instrument, analyze hydrocarbon component C
1-C
5The time analytical cycle less than 30s, analyze C
1-C
8The cycle is less than 90s during (comprising benzene, toluene) component.
In the enforcement, spectrum gas analysis, little gas chromatograph, just a kind of in the fast chromatographic analyzer are thought in said gas analysis.The utility model preferably adopts spectroanalysis instrument, owing to itself do not need carrier gas, has simplified the gas circuit structure of gas detecting system, and can continuous analytical gas component.
Said system comprises the carrier gas unit, and the carrier gas unit is used to promote the hydrocarbon gas entering chromatographic analysis system that pellicle separates, and keeps the hydrocarbon gas concentration of the inside and outside both sides of film poor, makes pellicle divided gas flow continuously; It comprises carrier gas module and carrier gas voltage stabilizing and filtering module; Described carrier gas module is that degasser provides pressure and the sufficient carrier gas of flow; Said carrier gas voltage stabilizing and filtering module are used for stablizing nebulizer gas pressure and flow, make degasser output gas concentration keep maximum, and filtering gas, make the sample of output pure free from foreign meter, for chromatogram provides pure sample gas; The carrier gas Voltage stabilizing module uses adjustable electronic pressure flow control module, can adjust gas pressure and flow size as required, and makes it to keep stable; Filtering module uses the pneumatic filter of≤5 μ m, makes gas keep pure; The output of described carrier gas module is connected with the input of filtering module with described carrier gas voltage stabilizing, and said carrier gas voltage stabilizing is connected with said degas module with the output of filtering module.
In concrete enforcement, said carrier gas is a kind of in air, helium, the nitrogen; The pressure of carrier gas is 0.05～0.1MPa; Flow 20～the 50ml of carrier gas; Select suitable pressure and flow according to degasser character, make degasser output gas concentration maximum; Said carrier gas voltage stabilizing is connected with said pellicle degasser with the carrier gas output of filtering module.
The said CPU of the utility model is a work station, and the startup that said work station is used to control degas module stops, controlling size and the switch of carrier gas flux, the operating temperature and the switch of control heating module; Said work station is used to gather gas analysis data, nebulizer gas pressure and flow, drilling fluid temperature, the heating tape temperature of said gas analysis unit output etc.; The line data of going forward side by side is handled, and is form and the data flow that transfer of data and monitoring module can receive with data transaction such as the pressure that obtains, flow, temperature, gas analyses.
Said system also comprises transfer of data and monitoring module, and said transfer of data is carried out data with monitoring module and said CPU and is connected; Said data transmission module is used to front station is received the data flow that data transaction receives for the well logging device; The function of monitoring module is that the data that receive are carried out real-time operation, demonstration, storage, playback etc., and the forward end work station sends control information, like start and stop, the regulation and control of flow, the regulation and control of pressure, the temperature control of control instrument.
Said system also comprises the well logging appearance; Said transfer of data and monitoring module are delivered to said well logging appearance with the result through serial ports or ICP/IP protocol after data are handled; Said well logging appearance is a kind of in the following model: NLS, DLS, SL-ALS, SLZ, SL-Explorer, SK-2000, ALS-2.2, SDL-9000, Advantage, Wellstar.
On the basis of coupling system, also research and develop formation fluid oil gas and monitored logging method in real time,
Said method comprises the steps:
Step 4; Degassing step: when the pellicle degasser has the gas concentration difference in drilling fluid and degasser; To carry out gas continuously separates: carrier gas feeds the pellicle degasser; Make gas separated get into gas pipeline, from and reduce the concentration of the inner divided gas flow of pellicle, make the pellicle degasser keep carrying out continuously gas and separate;
Step 9; Output results to well logging appearance step: transfer of data is the data flow that compound logging obtains with the gas composition data transaction of being obtained; Use the exchanges data function that the well logging appearance provides; Data are sent in the comprehensive logging instrument, make comprehensive logging instrument carry out demonstration, collection, the processing of data, improve the compound logging data;
Step 10 finishes.
The utility model adopts technique scheme to reach good technique effect: 1, can from drilling fluid, effectively separate various hydrocarbon gas components, keep the gas composition ratio in the drilling fluid.For oil gas is explained the information accurately that provides.2, the heating pipeline can guarantee normal temperature under to transfer to gas analyzer for the heavy hydrocarbon component of liquid state with the mode of gas.3, the spectrum gas analyzer does not have analytical cycle; Ability is the interior gas composition of test fluid in real time; Can detect all gas component except that inert gas in theory, for oil gas is accurately explained the information that provides sufficient, 4, analytical system is integrated in the scene; Shorten pipeline greatly and postpone, strengthened the real-time of analyzing.
The utility model provides the novel formation fluid oil gas of a cover and monitor the well logging device in real time, this device has the pellicle degasser that can effectively separate each gas composition, and heat air is failed pipeline; Real-time quantitative detects the spectrum oil gas analyzer of oil gas component; The analysis of all gas component except that inert gas can be provided, and accurately explaining for hydrocarbon stratum character provides real-time, sufficient gas measurement information, and analytical system is integrated in the scene; Shorten pipeline and postpone, strengthen and analyze real-time.
Description of drawings
Fig. 1 is the connection sketch map of each module of the system of the utility model;
Fig. 2 is the method flow diagram that the utility model adopted
Explain combining concrete embodiment
1-pellicle degasser among Fig. 1,2-heat gas lines, 3-carrier gas module, 4-carrier gas voltage stabilizing and filtering module, 5-spectrum gas analyzer, 6-work station, 7-transfer of data, monitoring unit, 8-comprehensive logging instrument
The specific embodiment
Formation fluid oil gas is monitored logging system in real time, and said system comprises degas module, gas analysis unit, CPU, carrier gas unit, transfer of data and monitoring module, well logging appearance; Comprise each parts:
(1) said degas module is used for contained gas in the separation of the fluid, and it comprises degasser and heating module; Said heating module is used to break away from the heavy hydrocarbon component; Heating module in the said degas module is that heat gas lines 2 heating pipelines make up with heatproof tracheae line and heat tape, twines or parallel being wrapped on the heating pipeline, walks abreast together, and coated outside insulation layer, outermost are overcoats.The heating tape is with the power supply of 24～36V low tension, and temperature can remain between 50 ℃～80 ℃.
Said degasser is that pellicle degasser 1 is main with the pellicle degasser, and pellicle degasser built-in temperature sensor to detect current drilling fluid temperature, is used to proofread and correct degassing efficiency; But also can adopt quantitative electronic degasser (less important).
(2) said gas analysis unit is a gas analyzer, each component in the analytical gas;
Said gas analysis unit is used for gas composition in the real-time test fluid, and it itself does not need carrier gas for spectrum gas analyzer 5 spectroanalysis instruments, has simplified the gas circuit structure of gas detecting system.Also can use other gas analyzer, just, analyze hydrocarbon component C like little gas chromatograph, fast chromatographic analyzer etc.
1-C
5The time analytical cycle less than 30s, analyze C
1-C
8The cycle is less than 90s during (comprising benzene, toluene) component.
(3), said central processing unit controls degas module and gas analysis unit, the line data of going forward side by side is handled;
Said CPU is a work station 6, and said work station 6 is used for controlling the operating temperature and the said carrier gas of control unit of degas module heat gas lines 2; Said work station 6 is used to gather the gas analysis data of said gas analysis unit 5 outputs, and carry out data: with data transaction such as the pressure that obtains, flow, temperature, gas analyses is form and the data flow that transfer of data and monitoring module can receive.
(4), said system comprises the carrier gas unit, and the carrier gas unit is used to promote the hydrocarbon gas entering chromatographic analysis system that pellicle separates, and keeps the hydrocarbon gas concentration of the inside and outside both sides of film poor, makes pellicle divided gas flow continuously; It comprises carrier gas module 3 and carrier gas voltage stabilizing and filtering module 4; Described carrier gas module 3 provides pressure and the sufficient carrier gas of flow for degasser; Said carrier gas voltage stabilizing and filtering module 4 are: the one, stablize nebulizer gas pressure and flow, and for degasser provides that meet the requirements, stable nebulizer gas pressure and flow, make degasser output gas concentration keep maximum; The 2nd, filtering gas makes the sample of output pure free from foreign meter, for chromatogram provides pure sample gas.The carrier gas Voltage stabilizing module uses adjustable electronic pressure flow control module, can adjust gas pressure and flow size as required, and makes it to keep stable; Filtering module uses the pneumatic filter of≤5 μ m, makes gas keep pure; The output of described carrier gas module 3 is connected with the input of filtering module 4 with described carrier gas voltage stabilizing, and said carrier gas voltage stabilizing is connected with said pellicle degasser 1 with the carrier gas output of filtering module 4.
Said carrier gas is air, helium, nitrogen etc., generally adopts air, can obtain economy, carrier gas easily, also can simplify gas circuit, but also can utilize helium, nitrogen is as carrier gas system. The pressure of carrier gas is 0.05～0.1MPa; Flow 20～the 50ml of carrier gas; Select suitable pressure and flow according to degasser character, make degasser output gas concentration maximum.
(5), said system also comprises transfer of data and monitoring module 7, and said transfer of data is carried out data with monitoring module 7 with said CPU 6 and is connected; Said transfer of data and monitoring module 7: the software module of moving on computers, the effect of transfer of data is according to the comprehensive logging instrument type that is connected, it is the data flow that compound logging can receive that front station is received data transaction; The function of monitoring module is that the data that receive are carried out real-time operation, demonstration, storage, playback etc., and the forward end work station sends control information, like the regulation and control of the regulation and control of the start and stop of control instrument, flow, pressure, temperature control etc.
(6), said system also comprises well logging appearance 8; After 7 pairs of data of said transfer of data and monitoring module are handled the result is delivered to said well logging appearance 8 through serial ports or ICP/IP protocol; Said well logging appearance 8 is existing comprehensive logging instrument, like NLS, DLS, SL-ALS, SLZ, SL-Explorer, SK-2000, ALS-2.2, SDL-9000, Advantage, Wellstar or the like.
According to said system, the formation fluid oil gas of employing is monitored logging method in real time,
Said method comprises the steps:
Step 4, degassing step: when the pellicle degasser has the gas concentration difference in drilling fluid and degasser, will carry out gas continuously and separate.Carrier gas feeds the pellicle degasser, makes gas separated get into gas pipeline, from and reduce the inner divided gas flow of pellicle, make the pellicle degasser further carry out the concentration that gas separates continuously, make the pellicle degasser keep continuous gas to separate;
Step 9; Output is the well logging step as a result: transfer of data is the data flow that compound logging obtains with the gas composition data transaction of being obtained; Use the exchanges data function that the well logging appearance provides; Data are sent in the comprehensive logging instrument, make comprehensive logging instrument carry out demonstration, collection, the processing of data, to improve the compound logging data.
Step 10 finishes.
The utility model is by 1 pellicle degasser, 2 heat gas lines, and 3 carrier gas modules, 4 carrier gas voltage stabilizing and filtering modules, 5 spectrum gas analyses, 6 front station, 7 transfer of data, monitoring module, 8 comprehensive logging instruments are formed.Effective separating hydrocarbons gas from drilling fluid.The heating pipeline can guarantee to transmit with the mode of gaseous state for liquid hydrocarbon component under the normal temperature.The spectrum gas analyzer can detect all gas except that inert gas in theory in real time.The system integration is in the scene, shortens pipeline time delay.This device can be widely used in the well logging field, also can be integrated in one and overlap independently service system, has broad application prospects high economic benefit and social benefit.
Claims (9)
1. formation fluid oil gas is monitored logging system in real time, it is characterized in that, said system comprises degas module, gas analysis unit and CPU;
Said degas module is used for contained gas in the separation of the fluid, and it comprises degasser and heating module; Said degasser built-in temperature sensor detects current drilling fluid temperature, is used to proofread and correct degassing efficiency; Said heating module is used to make the heavy hydrocarbon component to transmit with the gas mode;
Said gas analysis unit is a gas analyzer, each component in the analytical gas;
Said central processing unit controls degas module and gas analysis unit, the line data of going forward side by side is handled; Said degas module output is connected with said gas analysis unit; The output of said gas analysis unit is connected with described CPU; Said CPU is connected with said degas module.
2. formation fluid oil gas according to claim 1 is monitored logging system in real time, it is characterized in that,
Heating module in the said degas module is the heating pipeline; Said heating pipeline comprises heatproof tracheae line and heat tape; Said heat tape adopts winding or parallel parcel mode to be laid on the heatproof tracheae line, and wraps up insulation layer and overcoat successively in heatproof tracheae line outside; Said heat tape maintains the temperature between 50 ℃～80 ℃ with the power supply of 24～36V low tension;
Said degasser adopts a kind of in pellicle degasser or the quantitative electronic degasser.
3. formation fluid oil gas according to claim 1 is monitored logging system in real time, it is characterized in that,
Said gas analysis unit is used for gas component in the real-time test fluid, and it is a gas analyzer.
4. formation fluid oil gas according to claim 3 is monitored logging system in real time, it is characterized in that,
Spectrum gas analysis, little gas chromatograph, just a kind of in the fast chromatographic analyzer are thought in said gas analysis.
5. formation fluid oil gas according to claim 1 is monitored logging system in real time, it is characterized in that,
Said system comprises the carrier gas unit, and the carrier gas unit is used to promote the hydrocarbon gas entering chromatographic analysis system that pellicle separates, and keeps the hydrocarbon gas concentration of the inside and outside both sides of film poor, makes pellicle divided gas flow continuously; It comprises carrier gas module and carrier gas voltage stabilizing and filtering module; Described carrier gas module is that degasser provides pressure and the sufficient carrier gas of flow; Said carrier gas voltage stabilizing and filtering module are used for stablizing nebulizer gas pressure and flow, make degasser output gas concentration keep maximum, and filtering gas, make the sample of output pure free from foreign meter, for chromatogram provides pure sample gas; The carrier gas Voltage stabilizing module uses adjustable electronic pressure flow control module, adjusts gas pressure and flow size as required, and makes it to keep stable; Filtering module uses the pneumatic filter of≤5 μ m, makes gas keep pure; The output of described carrier gas module is connected with the input of filtering module with described carrier gas voltage stabilizing, and said carrier gas voltage stabilizing is connected with said degas module with the output of filtering module.
6. monitor logging system in real time according to claim 5 or 2 described formation fluid oil gas, it is characterized in that,
Said carrier gas is a kind of in air, helium, the nitrogen; The pressure of carrier gas is 0.05～0.1MPa; Flow 20～the 50ml of carrier gas; Select suitable pressure and flow according to degasser character, make degasser output gas concentration maximum; Said carrier gas voltage stabilizing is connected with said pellicle degasser with the carrier gas output of filtering module.
7. monitor logging system in real time according to claim 1 or 5 described formation fluid oil gas, it is characterized in that,
Said CPU is a work station, and the startup that said work station is used to control degas module stops, controlling size and the switch of carrier gas flux, the operating temperature and the switch of control heating module; Said work station is used to gather gas analysis data, nebulizer gas pressure and flow, drilling fluid temperature, the heating tape temperature of said gas analysis unit output; The line data of going forward side by side is handled, and is form and the data flow that transfer of data and monitoring module can receive with data transaction such as the pressure that obtains, flow, temperature, gas analyses.
8. formation fluid oil gas according to claim 1 is monitored logging system in real time, it is characterized in that,
Said system also comprises transfer of data and monitoring module, and said transfer of data is carried out data with monitoring module and said CPU and is connected; Said data transmission module is used to front station is received the data flow that data transaction receives for the well logging device; The function of monitoring module is that the data that receive are carried out real-time operation, demonstration, storage, playback etc., and the forward end work station sends control information, like start and stop, the regulation and control of flow, the regulation and control of pressure, the temperature control of control instrument.
9. formation fluid oil gas according to claim 1 is monitored logging system in real time, it is characterized in that,
Said system also comprises the well logging appearance; Said transfer of data and monitoring module are delivered to said well logging appearance with the result through serial ports or ICP/IP protocol after data are handled; Said well logging appearance is a kind of in the following model: NLS, DLS, SL-ALS, SLZ, SL-Explorer, SK-2000, ALS-2.2, SDL-9000, Advantage, Wellstar.
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| CN102926746A (en) * | 2011-08-11 | 2013-02-13 | 中国石油化工股份有限公司 | System and method for monitoring and logging formation fluid oil gas in real time |
| CN103323413A (en) * | 2013-06-04 | 2013-09-25 | 中国石油化工股份有限公司 | Spectrum continuous gas logging device and method |
| CN104405380A (en) * | 2014-10-11 | 2015-03-11 | 中国地质大学（武汉） | Gas detector while drilling |
| 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 |
| CN109812264A (en) * | 2019-03-19 | 2019-05-28 | 辽宁石油化工大学 | It is a kind of for the survey mud logging equipment of underground real-time detection and its application |
| CN111364986A (en) * | 2020-02-12 | 2020-07-03 | 中国石油天然气集团有限公司 | Device and method for measuring water holding rate of oil-water two-phase flow under oil well |
| CN113586033A (en) * | 2021-08-05 | 2021-11-02 | 思凡(上海)石油设备有限公司 | Gas detection device for logging |
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2011
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| CN104405380A (en) * | 2014-10-11 | 2015-03-11 | 中国地质大学（武汉） | Gas detector while drilling |
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| CN111364986A (en) * | 2020-02-12 | 2020-07-03 | 中国石油天然气集团有限公司 | Device and method for measuring water holding rate of oil-water two-phase flow under oil well |
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