CN108151821B - Gas volume measuring device and gas volume measuring method - Google Patents
Gas volume measuring device and gas volume measuring method Download PDFInfo
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- CN108151821B CN108151821B CN201711430075.3A CN201711430075A CN108151821B CN 108151821 B CN108151821 B CN 108151821B CN 201711430075 A CN201711430075 A CN 201711430075A CN 108151821 B CN108151821 B CN 108151821B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
- G01F22/02—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for involving measurement of pressure
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Abstract
The present invention provides a kind of air volume measuring device and gas volume measuring method, for measuring degasser degassing gas volume, degasser includes degassing room, and degassing room includes gas outlet, and the gas measurement device further includes analytical equipment, aspiration pump, temperature sensor, pressure sensor, gas compensation device, the aspiration pump can aspirate the indoor gas of degassing according to given pace, and the gas compensation device includes the mass flowmenter for the mass flow for detecting the air of compensation.A kind of gas volume measurement method can convert the volume flow under the status of criterion for aspiration pump gas bleeding according to detection temperature value, pressure value and revolving speed, according to the compensation gas flow that mass flowmenter detects, corresponding amount of gas evolved can be precisely calculated.The present invention can effectively solve miniaturization quantitative degasser degassing gas volume measurement problem, and low volume flow meter is arranged also without in degasser gas outlet, reduces hardware cost, has certain engineering application value.
Description
Technical field
The present invention relates to fields of measurement more particularly to a kind of gas volume measuring devices and gas volume measurement method.
Background technique
It is an important content in drilling process monitoring service with gas detection logging is bored, passes through the group to oil gas in drilling fluid
Measuring analysis at composition and content can determine whether formation fluid property, and evaluate reservoir, with high sensitivity, can
The advantages that continuous detection, in discovery oil-gas Layer, engineering accidents such as early warning well kick, blowout etc. play a significant role.
Gas logging technology is mainly made of degassing, gas detection and Evaluation of Oil And Gas with three links are explained.Wherein, de-
It is significant on the influence of entire gas logging technology final evaluation of the accuracy that authentic and valid oil gas sample can be obtained in compression ring section, because
This has high requirement to degassing efficiency and its measuring fixed amount aspect.
In order to improve the front and back comparativity of degassing data, and for Evaluation of Oil And Gas and explanation provide more effective data, mesh
Before, in order to calculate degassed volume, flow, temperature and pressure etc. mostly is respectively set in make-up air input terminal and degassing output end
Sensor real-time detection associated arguments.This sensor placement is that a kind of comparison is easy in the degassing of big flow drilling fluid
Degassed volume calculation because exist at this time biggish air or degassing flow, convenient for flow sensor acquire；And for
It minimizes quantitative degasser (such as: mud flow rate 1L/min), since abjection gas volume amount is small, ingredient is changeable in addition, defeated
If entering with output end still using low volume flow meter, in addition to undertaking high economic cost, there is also biggish measurement error,
It is difficult to obtain more accurate degassed volume data.
Therefore, a kind of to be suitable for miniaturization quantitative degasser, the gasmetry dress of degassing gas volume can be accurately calculated
Set be those skilled in the art there is an urgent need to.
Summary of the invention
In view of the problems of the existing technology the present invention, proposes that one kind is suitable for miniaturization quantitative degasser, can be accurate
Calculate the gas measurement device and gas measuring method of degassing gas volume.
In order to achieve the above objectives, the technical solution adopted by the present invention are as follows:
A kind of air volume measuring device, for measuring degasser degassing gas volume, the degasser includes degassing room, institute
Stating degassing room includes gas outlet, including analytical equipment, the aspiration pump connecting with the gas outlet and analytical equipment, for detecting
The temperature sensor of the air outlet temperature connects for detecting the pressure sensor of the gas outlet pressure with the degassing room
The gas compensation device connect, the gas compensation device include the mass flow for the mass flow for detecting the air of compensation
Meter, the analytical equipment include:
Acquisition module: being electrically connected with the temperature sensor, pressure sensor, mass flowmenter and aspiration pump, uses
In the temperature value, pressure value, compensation airstream magnitude and the pumping revolution speed that acquire the gas outlet, described point is sent information to
Analysis apparatus；
Computing module: being electrically connected with the acquisition module, the information sent for receiving the acquisition module, according to temperature
Angle value, pressure value, compensation airstream magnitude and pumping pump tachomete calculate under the status of criterion aspiration pump from the gas outlet
The gas volume of extraction.
A kind of gas volume measurement method is based on gas volume measuring device as described above, includes the following steps:
S1, in the non-degassing of the degasser, in OK range select one group of tachometer value；
S2, a pumping revolution speed is chosen in one group of selected tachometer value；
S3, the pumping revolution speed for choosing aspiration pump operation, measure the gas flow under the pumping revolution speed, with
And the pressure value and temperature value of the gas outlet will be described by the revolving speed being evacuated under the status of criterion that revolution speed is converted into
Gas flow is converted into the volume flow under the status of criterion；
S4, the pumping revolution speed that do not chose is chosen in one group of selected tachometer value, repeat step S3, until selected
One group of aspiration pump tachometer value be selected；
S5, the experimental data according to S3-S4, to the pass between the revolving speed under the status of criterion and status of criterion lower volume flow
System is fitted；
S6, when deaerating work, according to the temperature value of the gas outlet detected, pressure value, pumping revolution speed and
The volume flow for the gas that deaerates under the status of criterion is calculated according to the relationship being fitted in step S3-S5 in make-up air flow.
Preferably, the step S3 includes:
S31, make the pumping revolution speed Sgas；
S32, the aspiration pump are to be evacuated revolution speed SgasOperation measures the gas flow of extraction, gas at the gas outlet
Temperature value TgasAnd pressure value Pgas；
S33, by the pumping revolution speed SgasThe revolving speed S being modified under the status of criterionsgas:
S34, the volume flow V converted the gas flow under standard statepump。
Preferably, the step S5 further comprises: using least square method to the revolving speed S under the status of criterionsgasWith
Volume flow V under the status of criterionpumpBetween relationship be fitted.
Preferably, the step S6 further comprises:
It is fitted in temperature value, pressure value, revolving speed and step S3-S4 at the gas outlet that S61, basis detect
The volume flow V of gas bleeding under the status of criterion is calculated in relationshippump；
S62, the compensation gas flow that will test are converted to the volume flow V under the status of criterionair, the de- gas volume of institute
VgasAre as follows:
Vgas=Vpump-Vair (4)。
Compared with prior art, the invention has the benefit that
Gas of the present invention refers to that measuring device is set to revolving speed, gas pressure and the gas temperature of the aspiration pump of gas outlet
Degassed volume numerical value is calculated with the correlation between input terminal make-up air volume.The gas volume measurement method can have
Effect solves the problems, such as miniaturization quantitative degasser degassing gas volume measurement, and low discharge flow is arranged also without in degasser gas outlet
Meter, reduces hardware cost, has certain engineering application value.
Detailed description of the invention
Fig. 1 is a kind of structure chart one of gas measurement device of the present invention；
Fig. 2 is the structure chart two of gas measurement device of the present invention；
Fig. 3 is the schematic diagram of gas measurement device of the present invention；
Fig. 4 is a kind of flow chart of gas volume measurement method of the present invention；
Fig. 5 is the fit correlation of the revolving speed and volume flow under the status of criterion of gas volume measurement method of the present invention
Figure；
In the above figure, 1, degassing room；11, gas outlet；2, analytical equipment；21, acquisition module；22, computing module；3, it is evacuated
Pump；4 temperature sensors；5, pressure sensor；6, gas compensation device；7, mass flowmenter.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments
In.
In the description of the present invention, it should be noted that the instruction such as term "inner", "outside", "upper", "lower", "front", "rear"
Orientation or positional relationship be positional relationship based on the figure, be merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot manage
Solution is indication or suggestion relative importance.
Referring to figs. 1 to 3, a kind of air volume measuring device, for measuring degasser degassing gas volume, the degasser packet
Degassing room 1 is included, the degassing room 1 includes gas outlet 11, including analytical equipment 2, with the gas outlet 11 and and analytical equipment 2
The gas of the degassing room 1 is evacuated to the analytical equipment 2 by the aspiration pump 3 of connection, for detecting 11 temperature of gas outlet
The temperature sensor 4 of degree, for detecting the pressure sensor 5 of 11 pressure of gas outlet, with the gas that connect of the degassing room 1
Compensation device 6, the gas compensation device 6 includes the mass flowmenter 7 for the mass flow for detecting the air of compensation, described
Aspiration pump 3 can aspirate the gas in the degassing room 1 according to given pace, and the analytical equipment 2 includes:
Acquisition module 21: electrically with the temperature sensor 4, pressure sensor 5, mass flowmenter 6 and aspiration pump 3
Connection sends information for acquiring temperature value, pressure value, compensation airstream magnitude and the speed of exhaust of the gas outlet 11
To the analytical equipment 2；
Computing module 22: being electrically connected with the acquisition module 21, the information sent for receiving the acquisition module 21,
According to temperature value, pressure value, compensation airstream magnitude and the speed of exhaust calculate under the status of criterion aspiration pump 3 from it is described go out
The gas volume of port extraction.
Gas of the present invention refers to that measuring device utilizes revolving speed, gas pressure and the gas of the aspiration pump set on gas outlet
Degassed volume numerical value is calculated with the correlation between input terminal make-up air volume in temperature, and the aspiration pump 3 is preferably gas
For body peristaltic pump in order to control revolving speed, the mass flowmenter 6 is preferably hot type air flow meter, the temperature sensor
4 preferably PT100 temperature transmitter, the pressure sensors 5 are preferably absolute pressure pressure transmitter.
With reference to Fig. 3, a kind of gas volume measurement method is based on gas volume measuring device described in claim 1, special
Sign is: including the following steps:
S1, in the non-degassing of the degasser, in OK range select one group of tachometer value；
S2, a pumping revolution speed is chosen in one group of selected tachometer value；
S3, the pumping revolution speed for choosing aspiration pump operation, measure the gas flow under the pumping revolution speed, with
And the pressure value and temperature value of the gas outlet will be described by the revolving speed being evacuated under the status of criterion that revolution speed is converted into
Gas flow is converted into the volume flow under the status of criterion；
S4, the pumping revolution speed that do not chose is chosen in one group of selected tachometer value, repeat step S3, until selected
One group of aspiration pump tachometer value be selected；
S5, the experimental data according to S3-S4, to the pass between the revolving speed under the status of criterion and status of criterion lower volume flow
System is fitted；
S6, when deaerating work, according to the temperature value of the gas outlet detected, pressure value, pumping revolution speed and
The volume flow for the gas that deaerates under the status of criterion is calculated according to the relationship being fitted in step S3-S5 in make-up air flow.
The gas volume measurement method can effectively solve miniaturization quantitative degasser degassing gas volume measurement problem, also
It is not necessary that low volume flow meter is arranged in degasser gas outlet, hardware cost is reduced, there is certain engineering application value.
Wherein, the flow for gas bleeding under the status of criterion being calculated in step S3 can be divided into multistep, comprising:
S31, make the pumping revolution speed Sgas；
S32, the aspiration pump are to be evacuated revolution speed SgasOperation measures the gas flow of extraction, gas at the gas outlet
Temperature value TgasAnd pressure value Pgas；
S33, by the pumping revolution speed SgasThe revolving speed S being modified under the status of criterionsgas:
S34, the volume flow V converted the gas flow under standard statepump。
Table 1
It is 100 revs/min of revolving speeds being modified under the status of criterion to revolving speed, as a result such as shown in table 1 under different conditions
Shown in table.
Subsequently, for the revolving speed S under the modified status of criterionsgasVolume flow under the standard state acquired with conversion
VpumpIt is fitted, it is preferred to use least square method is fitted, it may be assumed that
Vpump=f (SSga) (2)。
As shown in figure 5, being the experimental data of testing equipment, abscissa is the revolving speed S under the modified status of criterionsgas, indulge
Coordinate is the volume flow V under the standard state that conversion acquirespump, it is fitted by least square method, the modified standard shape
Revolving speed S under conditionsgasVolume flow V under the standard state acquired with conversionpumpBetween relationship are as follows:
It is fitted in temperature value, pressure value, revolving speed and step S3-S4 at the gas outlet that S61, basis detect
The volume flow V of gas bleeding under the status of criterion is calculated in relationshippump；
S62, the compensation gas flow that will test are converted to the volume flow V under the status of criterionair, the de- gas volume of institute
VgasAre as follows:
Vgas=Vpump-Vair (4)。
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.
Claims (3)
1. a kind of gas volume measurement method is based on a kind of air volume measuring device, for measuring degasser degassing gas volume,
The degasser includes degassing room, and the degassing room includes gas outlet, and the gas measurement device includes analytical equipment, and described
The aspiration pump of gas outlet and analytical equipment connection, for detecting the temperature sensor of the air outlet temperature, for detecting
The pressure sensor for stating gas outlet pressure, the gas compensation device connecting with the degassing room, the gas compensation device include
For detecting the mass flowmenter of the mass flow of the air of compensation, the analytical equipment includes:
Acquisition module: it is electrically connected with the temperature sensor, pressure sensor, mass flowmenter and aspiration pump, for adopting
Temperature value, pressure value, compensation airstream magnitude and the aspiration pump pumping speed for collecting the gas outlet send information to the analysis dress
It sets；
Computing module: being electrically connected with the acquisition module, the information sent for receiving the acquisition module, according to temperature
Value, pressure value, compensation airstream magnitude and aspiration pump pumping speed revolving speed calculate under the status of criterion aspiration pump from the outlet
The gas volume of mouth extraction, characterized by the following steps:
S1, in the non-degassing of the degasser, in OK range select one group of tachometer value；
S2, a pumping revolution speed is chosen in one group of selected tachometer value；
S3, the pumping revolution speed for choosing aspiration pump operation, measure the gas flow under the pumping revolution speed, Yi Jisuo
The pressure value and temperature value for stating gas outlet, by the revolving speed being evacuated under the status of criterion that revolution speed is converted into, by the gas
Traffic transformation is the volume flow under the status of criterion；
The step S3 includes:
S31, make the pumping revolution speed Sgas；
S32, the aspiration pump are to be evacuated revolution speed SgasOperation, measure the gas flow of extraction, at the gas outlet gas temperature
Angle value TgasAnd pressure value Pgas；
S33, by the pumping revolution speed SgasThe revolving speed S being modified under the status of criterionsgas:
S34, the volume flow V converted the gas flow under standard statepump；
S4, the pumping revolution speed that do not chose is chosen in one group of selected tachometer value, repeat step S3, until selected one
Group aspiration pump tachometer value was selected；
S5, the experimental data according to S3-S4, to the relationship between the revolving speed under the status of criterion and status of criterion lower volume flow into
Row fitting；
S6, when deaerating work, according to the temperature value of the gas outlet detected, pressure value, pumping revolution speed and compensation
The volume flow for the gas that deaerates under the status of criterion is calculated according to the relationship being fitted in step S3-S5 in air mass flow.
2. gas volume measurement method according to claim 1, it is characterised in that: the step S5 further comprises: making
With least square method to the revolving speed S under the status of criterionsgasWith the volume flow V under the status of criterionpumpBetween relationship intended
It closes.
3. gas volume measurement method described in -2 any one according to claim 1, it is characterised in that: the step S6 is into one
Step includes:
The relationship being fitted in temperature value, pressure value, revolving speed and step S3-S4 at the gas outlet that S61, basis detect,
The volume flow V of gas bleeding under the status of criterion is calculatedpump；
S62, the compensation gas flow that will test are converted to the volume flow V under the status of criterionair, the de- gas volume V of institutegas
Are as follows:
Vgas=Vpump-Vair (4)
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| CN112147033B (en) * | 2019-06-28 | 2023-11-28 | 中国石油天然气股份有限公司 | System and method for testing gas content |
| CN117309091B (en) * | 2023-12-01 | 2024-03-08 | 深圳市恒永达科技股份有限公司 | Liquid suction amount accuracy pressure detection method, system and readable storage medium |
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2017
- 2017-12-26 CN CN201711430075.3A patent/CN108151821B/en active Active
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| FR2237639A1 (en) * | 1973-07-20 | 1975-02-14 | Gensollen Yves | Degasser for artificial kidney dialysis liquid - senses growing gas vol. in degasser to actuate connection with vacuum system |
| CN201304265Y (en) * | 2008-12-01 | 2009-09-09 | 天津市兴国科技开发有限公司 | Liquid full degasser |
| CN104565808A (en) * | 2014-12-26 | 2015-04-29 | 湖南师范大学 | Gas replacement method and device used for rigid container and based on quantitative gas extracting-inflating technology |
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