CN210774527U - Online early warning system of erosion is prevented stinging in shale gas test gas flow - Google Patents
Online early warning system of erosion is prevented stinging in shale gas test gas flow Download PDFInfo
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- CN210774527U CN210774527U CN201921500931.2U CN201921500931U CN210774527U CN 210774527 U CN210774527 U CN 210774527U CN 201921500931 U CN201921500931 U CN 201921500931U CN 210774527 U CN210774527 U CN 210774527U
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Abstract
The utility model discloses a shale gas testing flow prevents stinging and loses online early warning system, including rear end early warning system (2), data receiver (3), rear end audible-visual alarm device (4), four unification gas detection appearance (8), ultrasonic wall thickness detection appearanceThe ultrasonic wall thickness detector is arranged at the outlet elbow of the oil nozzle manifold and used for collecting the wall thickness data of the elbow, and the four-in-one gas detector (8) is arranged above the elbow and used for collecting the surrounding H2S、CO、O2、CH4And data is sent out through a built-in wireless signal transmitter, a data receiver (3) receives the data and then transmits the data to an early warning system for data analysis, and the early warning of erosion leakage is carried out through wall thickness analysis and surrounding environment data. The utility model discloses compact structure is simple, and convenient equipment and maintenance can realize real-time online early warning.
Description
Technical Field
The invention relates to the field of shale gas testing, in particular to an anti-corrosion online early warning system for a shale gas testing process.
Background
At present, industrial airflow can be obtained in each domestic large shale gas field through fracturing construction, ceramsite, quartz sand and other materials are added in the fracturing process to serve as propping agents, and the propping agents are carried out to a certain extent by drilling and grinding a bridge plug after the fracturing and gas-liquid two-phase flow in the later open flow test process. The high-speed gas-liquid two-phase flow and the propping agent material inevitably grind and scour the inner wall of the ground flow, and particularly seriously, the high-pressure gas-liquid leakage caused by the puncture of an elbow and a plug due to the pressure reduction, gas expansion and instantaneous increase of flow rate of the gas-liquid two-phase flow after the gas-liquid two-phase flow is throttled by an oil nozzle is often caused at the downstream outlet of an oil nozzle manifold, thereby bringing great potential safety hazard and environmental pollution.
Disclosure of Invention
The invention aims to provide an anti-erosion online early warning system for a shale gas testing process, aiming at the defects of the background technology and the existing design, and the early warning can be carried out in real time.
The utility model provides a shale gas testing flow prevents stinging and loses online early warning system, includes: the system comprises a rear-end early warning system, a data receiver, an audible and visual alarm device and a sensor system; the sensor system comprises a four-in-one gas detector and an ultrasonic wall thickness detector, the ultrasonic wall thickness detector is installed at an outlet elbow of the oil nozzle manifold and used for collecting elbow wall thickness data, the four-in-one gas detector is installed above the elbow and used for collecting surrounding gas concentration and sending out the data through a built-in wireless signal transmitter, and a data receiver receives the data and then transmits the data to the rear-end early warning system to perform erosion leakage early warning according to the received wall thickness data and surrounding environment data.
The ultrasonic wall thickness detector comprises a spring type automatic couplant filling device, an ultrasonic thickness measuring device and a host module, wherein the spring type automatic couplant filling device is used for supplementing couplant consumed during ultrasonic measurement, and the sound wave thickness measuring device is used for generating ultrasonic emission pulse waves to measure thickness values.
The host module comprises a transmitting unit, a receiving unit, a display unit, a single chip microcomputer control unit and a data wireless transmission unit, wherein the transmitting unit is used for transmitting high-voltage shock wave, the single chip microcomputer control unit is used for processing generated ultrasonic transmitting pulse waves, and the data wireless transmission unit is used for transmitting data to the rear-end early warning system.
The four-in-one gas detector comprises an acousto-optic alarm module and a detection module, wherein the acousto-optic alarm module is used for alarming that the concentration of the toxic gas on site exceeds the standard, and the detection module is used for detecting the concentration of the toxic gas.
The four-in-one gas detector and the ultrasonic wall thickness detector are internally provided with wireless signal generators.
The wireless signal transmitter selects electromagnetic waves as a wireless transmission mode and supports 4G, WiFi communication.
The four-in-one gas detector is internally provided with an audible and visual alarm for early warning at an installation position.
The sound and light alarm device comprises a sound alarm and a light alarm and is used for early warning in a control room.
The invention has the beneficial effects that: the invention adopts a different conventional manual inspection process early warning means, and provides that the wall thickness of the pipeline process and flammable and explosive gases are monitored and early warned in real time by detecting the process wall thickness and the ambient gas data through an ultrasonic wall thickness detector and a four-in-one gas detector sensor while the shale gas drill grinds the bridge plug and the yield test is carried out. Early warning is realized to pipeline wall thickness reduction in advance, and early warning in the past is realized to slight leakage of pipeline process screw thread. By adopting the data wireless transmission technology, the field inspection personnel can monitor data directly in the office without entering the vicinity of the high-pressure pipeline flow, and the safety risk is reduced.
Drawings
FIG. 1 is a diagram of a sensing system installation location;
FIG. 2 is a schematic diagram of a system architecture;
in the figure: 1-a sensor system; 2-a rear-end early warning system; 3-a data receiver; 4-a rear-end acousto-optic alarm device; 5-a monitored pipeline; 6-spring type automatic couplant filling device; 7-ultrasonic thickness measuring device; 8-four in one gas detector.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
In this embodiment, as shown in fig. 1 and 2, an anti-erosion online early warning system for shale gas test flow comprises a rear-end early warning system 2, a data receiver 3, an audible and visual alarm device 4, a four-in-one gas detector 6 and an ultrasonic wall thickness detector, wherein the ultrasonic wall thickness detector is installed at an elbow of an outlet of a choke manifold and is responsible for collecting elbow wall thickness data, and the four-in-one gas detector 8 is installed above the elbow and is responsible for collecting surrounding H2S、CO、O2、CH4Data is sent out through a built-in wireless signal transmitter, and the data receiver 3 receives the data and then transmits the data to the rear-end early warning deviceAnd the system 2 analyzes data and carries out erosion leakage early warning through wall thickness analysis and surrounding environment data.
Further, the sensor system comprises a four-in-one gas detector 8 and an ultrasonic wall thickness detector.
Furthermore, the four-in-one gas detector 8 and the ultrasonic wall thickness detector are internally provided with wireless signal generators.
Furthermore, the signal transmitter selects electromagnetic waves as a wireless transmission mode and supports communication including 4G, WiFi.
Further, a front-end acousto-optic alarm is arranged in the four-in-one gas detector 8, and when the front-end acousto-optic alarm is used, the alarm is turned on2S over 10ppm, CO over 24ppm, O2Less than 18% of CH4And if more than 1 percent of the devices are in the condition of triggering the alarm device, the sound and light alarm is carried out at the installation position.
Furthermore, the ultrasonic wall thickness detector consists of a spring type automatic couplant filling device 6 and an ultrasonic thickness measuring device 7, wherein the spring type automatic couplant filling device 6 is used for supplementing the consumption of the couplant during ultrasonic measurement.
Furthermore, the alarm mode in the control room comprises a rear-end acousto-optic alarm device 4 and a rear-end optical alarm device 5, when the early warning system detects that the high-pressure flow pipeline is lower than a set wall thickness value or the environmental gas is higher than a set value, the interlocking alarm device is triggered to alarm in the control room.
The invention provides an anti-corrosion online early warning system for a shale gas testing process, which detects the process wall thickness and the ambient gas data through an ultrasonic wall thickness detector and a four-in-one gas detector sensor to realize real-time monitoring and real-time early warning of the pipeline process wall thickness and flammable and explosive gases. Early warning is realized to pipeline wall thickness reduction in advance, and early warning in the past is realized to slight leakage of pipeline process screw thread.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An anti-corrosion online early warning system for a shale gas testing process is characterized by comprising a sensor system (1), a rear-end early warning system (2), a data receiver (3) and a rear-end acousto-optic alarm device (4); sensor system (1) is including four unification gas detection appearance (8) and ultrasonic wall thickness detector, ultrasonic wall thickness detector installs in glib manifold export elbow department for gather elbow wall thickness data, four unification gas detection appearance are installed in the elbow top for gather surrounding gas concentration, and send data through built-in wireless transmitter, data receiver (3) receive after the data transmit extremely rear end early warning system (2), carry out the erosion according to the wall thickness data of receiving and surrounding environment data and leak the early warning.
2. The online early warning system for the erosion prevention of the shale gas test gas process according to claim 1, wherein the ultrasonic wall thickness detector comprises a spring type automatic couplant filling device (6) and an ultrasonic thickness measuring device (7), the spring type automatic couplant filling device (6) is used for supplementing the couplant consumed during ultrasonic measurement, and the acoustic thickness measuring device (7) is used for generating ultrasonic emission pulse waves and measuring thickness values.
3. The online early warning system for preventing the erosion in the shale gas test gas process as claimed in claim 2, further comprising a host module, wherein the host module comprises a transmitting unit, a receiving unit, a display unit, a single chip microcomputer control unit and a wireless data transmission unit, the transmitting unit is used for transmitting high-pressure shock waves, the single chip microcomputer control unit is used for processing the generated ultrasonic transmitting pulse waves, the wireless data transmission unit is used for transmitting data to the rear-end early warning system (2), the transmitting unit is used for processing the transmitted high-pressure shock waves to obtain elbow wall thickness data, and the wireless data transmission unit transmits the elbow wall thickness data to the rear-end early warning system (2).
4. The shale gas testing process anti-corrosion online early warning system according to claim 1, wherein the four-in-one gas detector (8) comprises a front-end acousto-optic alarm module and a detection module, the front-end acousto-optic alarm module is used for on-site alarm of excessive toxic gas concentration, and the detection module is used for detecting the concentration of toxic gas.
5. The online early warning system for the erosion prevention of the shale gas test gas process as claimed in claim 1, wherein a wireless signal generator is arranged in the four-in-one gas detector (8) and the ultrasonic wall thickness detector.
6. The online early warning system of erosion prevention of shale gas test gas flow of claim 4, wherein the wireless signal transmitter selects electromagnetic waves as a wireless transmission mode, and supports 4G, WiFi communication.
7. The shale gas testing process anti-erosion online early warning system as claimed in claim 1, wherein the rear end acousto-optic alarm device (4) comprises an acoustic alarm and an optical alarm and is used for early warning in a control room.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440993A (en) * | 2019-09-10 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of anti-stab erosion on-line early warning system of shale gas gas testing process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440993A (en) * | 2019-09-10 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of anti-stab erosion on-line early warning system of shale gas gas testing process |
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