CN205117334U - Gas logging gas circuit alarm system - Google Patents
Gas logging gas circuit alarm system Download PDFInfo
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- CN205117334U CN205117334U CN201520856552.2U CN201520856552U CN205117334U CN 205117334 U CN205117334 U CN 205117334U CN 201520856552 U CN201520856552 U CN 201520856552U CN 205117334 U CN205117334 U CN 205117334U
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Abstract
The utility model provides a gas logging gas circuit alarm system, its sample pump is with the gaseous suction gas control valve of sample, pressure sensor is through the gas pressure data after this gas control valve, and give AD conversion module with gas pressure data transmission, it is gas pressure data signal that this AD conversion module carries out analog -to -digital conversion with the gas pressure data, and give signal processing module with gas pressure digital signal transmission, this signal processing module carries out the comparison with gas pressure data signal with pressure warning value of triggering of preset, alarm output signal when gas pressure data signal's numerical value is greater than the high value trigger point of pressure warning or is less than pressure warning low value trigger point, the outage module was when receiving alarm signal, the power of this sample pump cuts off. This gas logging gas circuit alarm system has realized that the accurate of sample gas pressure shows and real time monitoring, has played effective protection to record well equipment, has apparent economic benefits and social to oil -gas exploration.
Description
Technical field
The utility model relates to well logging resist technology field, particularly relates to a kind of gas detection logging gas circuit warning system.
Background technology
In modern compound logging, gas detection logging is as a part important in well logging, and in whole well logging work progress, gas detection logging is as finding oil/gas show, judging oil-gas Layer, judge oil gas situation in return of drilling mud, accomplishing that adjusting mud in advance digs a well safely, avoids gas blowout accident to play an important role.The unimpeded support equipment of gas circuit can detect gas in real time, it is the most basic requirement of gas detection logging, present most airline pressure carries out display gas pressure by the pressure meter of pointer-type, this manometric shortcoming is accurate not also directly perceived not, can not measure accurately with one and represent, very large inconvenience is brought to staff, and once there is abnormal very difficultly to be found by staff in airline pressure, particularly in sample pump suction sample gas process, be easy to pumping slurries blocking pipeline even damage equipment, this point staff is easy to ignore, can only be found by eye observation.We have invented a kind of new gas detection logging gas circuit warning system for this reason, solve above technical problem.
Summary of the invention
The purpose of this utility model be to provide a kind of with electro connecting pressure gauge be core airline pressure display, report to the police and the gas detection logging gas circuit warning system that is integrated of self-protection.
The purpose of this utility model realizes by following technical measures: gas detection logging gas circuit warning system, this gas detection logging gas circuit warning system comprises sample pump, gas control valve, pressure sensor, A/D modular converter, signal processing module and power-off modular, this sample pump is connected to this gas control valve, by this gas control valve of sample gas suction, this gas control valve is connected to this pressure sensor, this pressure sensor detects by the gas pressure data after this gas control valve, and gas pressure data is transferred to this A/D modular converter, this A/D modular converter is connected to this micro pressure sensor, gas pressure data being carried out analog-to-digital conversion is gas pressure data signal, and give this signal processing module by gas pressure digital data transmission, this signal processing module is connected to this A/D modular converter, gas pressure data signal and the pressure alarm trigger value preset are compared, the output alarm signal when the numerical value of gas pressure data signal is greater than pressure alarm high level trigger point or is less than pressure alarm low value trigger point, this power-off modular is connected between this signal processing module and this sample pump, and when receiving alarm signal, cut off the power supply of this sample pump.
The purpose of this utility model also realizes by following technical measures:
This gas detection logging gas circuit warning system also comprises alarm, and this alarm is connected to this signal processing module, and when receiving alarm signal, sends chimes of doom.
This signal processing module exports high level alarm signal when the numerical value of gas pressure data signal is greater than pressure alarm high level trigger point, low value alarm signal is exported when the numerical value of gas pressure data signal is less than pressure alarm low value trigger point, this alarm, when receiving high level alarm signal and low value alarm signal, sends different chimes of dooms.
This gas detection logging gas circuit warning system also comprises digital display, and this digital display is connected to this A/D modular converter, and gas pressure data signal is carried out numerical monitor.
This digital display adopts the digital display module selecting the display frequency of 1 beat/min.
This gas detection logging gas circuit warning system also comprises pressure setting device, and this pressure setting device is connected to this signal processing module, setting pressure warning low value trigger point and pressure alarm high level trigger point.
This pressure sensor adopts ceramic pressure sensor.
This gas detection logging gas circuit warning system adopts 24V dc source.
Gas detection logging gas circuit warning system in the utility model; be applicable to the pressure display of all gas survey gas circuits, pressure alarm and self-protection; when this system puts work, gas pressure to be tested is passed through sensor; amplify through data processing module settling signal, gather, process and export; the pressure on the number value of gas in gas circuit pipeline can be shown in real time; and judge to judge according to the force value of personnel setting, realize when pressure anomaly reporting to the police and self-gas circuit defencive function.When airline pressure is abnormal; can point out staff's Timeliness coverage, ensure mud logging equipment safe operation, application airline pressure protective device just seems extremely important; on the one hand alleviate intensity of workers, improve on the other hand pinpoints the problems is validity and ageing.Gas detection logging gas circuit warning system in the utility model; make full use of the function i ntegration such as microsensor technology, Analog-digital Converter technology, data acquisition and procession technology, automatic control technology to combine together; achieve accurate display and the monitoring in real time of sample atmospheric pressure; available protecting is served for mud logging equipment, for oil-gas exploration, there is significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the structure chart of a specific embodiment of gas detection logging gas circuit warning system of the present utility model;
Fig. 2 is the workflow diagram of a specific embodiment of gas detection logging gas circuit warning system of the present utility model.
Detailed description of the invention
For making above and other object of the present utility model, feature and advantage can become apparent, cited below particularly go out preferred embodiment, and coordinate shown in accompanying drawing, be described in detail below.
As shown in Figure 1, Fig. 1 is the structure chart of gas detection logging gas circuit warning system of the present utility model.This gas detection logging gas circuit warning system is made up of sample pump 1, gas control valve 2, micro pressure sensor 3, A/D modular converter 4, signal processing module 5, digital display 6, pressure setting device 7, alarm 8 and power-off modular 9.
Sample pump 1 is connected to gas control valve 2, by sample gas suction gas control valve 2.Gas control valve is connected to micro pressure sensor 3, micro pressure sensor 3 detect by gas control valve 2 after gas pressure data, and gas pressure data is transferred to A/D modular converter 4.A/D modular converter 4 is connected to micro pressure sensor 3, and gas pressure data being carried out analog-to-digital conversion is gas pressure data signal, and by gas pressure digital data transmission to signal processing module 5.Digital display 6 is connected to A/D modular converter 4, and gas pressure data signal is carried out numerical monitor.Pressure setting device 7 is connected to signal processing module 5, setting low value trigger point and high level trigger point.Signal processing module 5 is connected to A/D modular converter 4, gas pressure data signal and pressure alarm trigger value are compared, the output alarm signal when the numerical value of gas pressure data signal is greater than high level trigger point or is less than low value trigger point, does not send signal when the numerical value of gas pressure data signal is within the scope of set-point.Alarm 8 is connected to signal processing module 5, and when receiving alarm signal, sends chimes of doom.Power-off modular 9 is connected between signal processing module 5 and sample pump, and when receiving alarm signal, cutting off the power supply of sample pump 1, making quitting work of sample pump, plays the effect of protection gas circuit equipment.
In one embodiment, micro pressure sensor 3 selects the sensor of appropriate range according to the pressure limit of the gas circuit of reality, the precision of the measurement that can improve like this, under the state that the air pressure of well logging gas circuit selects 0 ~ 0.1MPa or-0.1 ~ 0.1MPa(to measure vacuum) just can meet the needs of airline pressure, certainly select the pressure sensor of more small-range more to meet the requirements to mention precision, certainty of measurement is being less than or equal to 0.25.As the selection that the key that accurately can demonstrate pressure on the number is pressure sensor, micro pressure sensor 3 adopts ceramic pressure sensor, erosion-resisting ceramic pressure sensor does not have the transmission of liquid, pressure acts directly on the front surface of ceramic diaphragm, diaphragm is made to produce small deformation, thick-film resistor is printed on the back side of ceramic diaphragm, connect into a Wheatstone bridge (closing bridge), due to the piezoresistive effect of piezo-resistance, electric bridge is made to produce a highly linear be directly proportional to pressure, also the voltage signal be directly proportional to driving voltage, the signal of standard is demarcated as 2.0/3.0/3.3mV/V etc. according to the difference of pressure range, can be mutually compatible with strain gauge transducer.By laser calibration, sensor has very high temperature stability and time stability, and sensor carries temperature-compensating 0 ~ 70 DEG C, and can with most physical contact between media.
The digital display module that digital display 6 selects frequency lower, the frequency of digital-to-analogue conversion and numerical monitor can be reduced, enough meet the needs of sample atmospheric pressure display according to the display frequency of operating instruction standard application 1 beat/min, the application life of instrument can be improve simultaneously like this.
Because whole display and control is all carry out under light current state, and be also for the output of low-voltage controls, in order to saving resource application is convenient, whole control system adopts 24V dc source, can use the 24V dc source that mud logging equipment generally adopts.
Workflow of the present utility model as shown in Figure 2.According to the actual needs, air pressure is all a given little pressure limit, and this just requires that air pressure can not be excessive, prevent from damaging pipeline by pressure on the one hand, the air pressure of certain gas circuit can not be less than set-point, causes the confession unsaturated vapor of chromatogram, in order to avoid the normal work of the chromatogram of impact.In work at the scene, extract the mud sample gas deviate from from degasser, in order to the stability of measurement can be reached, this requires that the air pressure of sample gas is a stationary value, so in set-point, require to arrange a lower limit and a higher limit, with the needs of satisfied warning.
In order to meet the warning of two alarming values, signal processing module 5 will have the common junction of, two trigger points, i.e. low value trigger point and high level trigger point, can according to the alarm sound needing design different of oneself, alarm prompting which trigger point concrete sends.
Claims (8)
1. gas detection logging gas circuit warning system, it is characterized in that, this gas detection logging gas circuit warning system comprises sample pump, gas control valve, pressure sensor, A/D modular converter, signal processing module and power-off modular, this sample pump is connected to this gas control valve, by this gas control valve of sample gas suction, this gas control valve is connected to this pressure sensor, this pressure sensor detects by the gas pressure data after this gas control valve, and gas pressure data is transferred to this A/D modular converter, this A/D modular converter is connected to this micro pressure sensor, gas pressure data being carried out analog-to-digital conversion is gas pressure data signal, and give this signal processing module by gas pressure digital data transmission, this signal processing module is connected to this A/D modular converter, gas pressure data signal and the pressure alarm trigger value preset are compared, the output alarm signal when the numerical value of gas pressure data signal is greater than pressure alarm high level trigger point or is less than pressure alarm low value trigger point, this power-off modular is connected between this signal processing module and this sample pump, and when receiving alarm signal, cut off the power supply of this sample pump.
2. gas detection logging gas circuit warning system according to claim 1, is characterized in that, this gas detection logging gas circuit warning system also comprises alarm, and this alarm is connected to this signal processing module, and when receiving alarm signal, sends chimes of doom.
3. gas detection logging gas circuit warning system according to claim 2, it is characterized in that, this signal processing module exports high level alarm signal when the numerical value of gas pressure data signal is greater than pressure alarm high level trigger point, low value alarm signal is exported when the numerical value of gas pressure data signal is less than pressure alarm low value trigger point, this alarm, when receiving high level alarm signal and low value alarm signal, sends different chimes of dooms.
4. gas detection logging gas circuit warning system according to claim 1, is characterized in that, this gas detection logging gas circuit warning system also comprises digital display, and this digital display is connected to this A/D modular converter, and gas pressure data signal is carried out numerical monitor.
5. gas detection logging gas circuit warning system according to claim 4, is characterized in that, this digital display adopts the digital display module selecting the display frequency of 1 beat/min.
6. gas detection logging gas circuit warning system according to claim 1, it is characterized in that, this gas detection logging gas circuit warning system also comprises pressure setting device, and this pressure setting device is connected to this signal processing module, setting pressure warning low value trigger point and pressure alarm high level trigger point.
7. gas detection logging gas circuit warning system according to claim 1, is characterized in that, this pressure sensor adopts ceramic pressure sensor.
8. gas detection logging gas circuit warning system according to claim 1, is characterized in that, this gas detection logging gas circuit warning system adopts 24V dc source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520856552.2U CN205117334U (en) | 2015-10-31 | 2015-10-31 | Gas logging gas circuit alarm system |
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| CN201520856552.2U CN205117334U (en) | 2015-10-31 | 2015-10-31 | Gas logging gas circuit alarm system |
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| CN205117334U true CN205117334U (en) | 2016-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649125A (en) * | 2020-01-02 | 2021-04-13 | 青雀(苏州)信息技术有限公司 | Negative pressure sensor system and negative pressure control method thereof |
| CN114412427A (en) * | 2020-10-12 | 2022-04-29 | 北京星油科技有限公司 | Gas lift and production integrated oil and gas exploitation system |
-
2015
- 2015-10-31 CN CN201520856552.2U patent/CN205117334U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649125A (en) * | 2020-01-02 | 2021-04-13 | 青雀(苏州)信息技术有限公司 | Negative pressure sensor system and negative pressure control method thereof |
| CN114412427A (en) * | 2020-10-12 | 2022-04-29 | 北京星油科技有限公司 | Gas lift and production integrated oil and gas exploitation system |
| CN114412427B (en) * | 2020-10-12 | 2023-11-14 | 北京星油科技有限公司 | Gas lift and production integrated oil gas exploitation system |
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Effective date of registration: 20220302 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Shengli geological logging company of Sinopec Jingwei Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: GEOLOGICAL LOGGING BRANCH OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |