CN112362822A - Automatic parallel hydrate agent filling and performance evaluation device and method - Google Patents
Automatic parallel hydrate agent filling and performance evaluation device and method Download PDFInfo
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- CN112362822A CN112362822A CN202011414499.2A CN202011414499A CN112362822A CN 112362822 A CN112362822 A CN 112362822A CN 202011414499 A CN202011414499 A CN 202011414499A CN 112362822 A CN112362822 A CN 112362822A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention relates to a device and a method for automatically filling and evaluating performance of a parallel hydrate, which comprises a liquid inlet system, an air inlet system, a vacuum pump, a low-temperature thermostatic bath, a high-pressure reaction kettle arranged in the low-temperature thermostatic bath, a parallel additive system and a controller, wherein the high-pressure reaction kettle is provided with an observation visual window and is respectively connected with the liquid inlet system, the air inlet system, the vacuum pump and the parallel additive system, and the controller is used for acquiring gas/liquid flow, temperature and pressure of the high-pressure reaction kettle and measurement data of a high-pressure viscometer in the kettle and controlling the opening and closing state of an electromagnetic valve, so that the automatic filling of the hydrate and the performance evaluation are realized. The invention provides a method for automatically filling and evaluating performance of a hydrate agent through a parallel agent adding system, and the method can efficiently screen the optimal dosage and evaluate the combination performance of various hydrate agents on the basis of realizing accurate and automatic control of dosage by controlling the opening and closing of an electromagnetic valve.
Description
Technical Field
The invention relates to an indoor hydrate agent screening experiment, in particular to a device and a method for automatically filling and evaluating performance of a parallel hydrate agent.
Background
In the middle of oil gas production and gathering, the formation that can lead to hydrate often when high pressure microthermal external environment not only can increase the risk of pipeline jam, still can direct influence normal production. Therefore, three types of reagents such as thermodynamic inhibitors, kinetic inhibitors and polymerization inhibitors for inhibiting the formation of hydrates are presented, and the thermodynamic inhibitors such as methanol and ethylene glycol which are commonly used in industry are increasingly restricted by high cost due to large use amount, so that experimental screening of hydrate types and content is required, and the type and content proportion of effective hydrate agents are preferably selected.
The devices currently used to screen and evaluate inhibitor performance are typically autoclave and loop flow devices. Most experiments need to be carried out in a single high-pressure reaction kettle device after hydrate inhibitors with certain content are prepared in advance, the inhibition effect under one condition can only be tested once, repeated tests can increase the task amount, the testing conditions are difficult to ensure to be completely the same, and therefore large errors exist in results. The starting of the circular flow device needs to inject a large amount of gas-liquid, has high energy consumption and is not suitable for the early evaluation of the hydrate.
Chinese patent CN101692077B discloses a performance evaluation device for hydrate inhibitor, which makes multiple high-pressure stainless steel reaction kettles react at the same time under the same pressure and temperature, but in the device, the reaction kettles are blind kettles, the hydrate formation process in the reaction kettles cannot be visualized, the cost of multiple reaction kettles is high, and the energy consumption is inevitably increased by the simultaneous operation.
Chinese patent CN104807821B discloses a swing reaction device for evaluating the performance of hydrate inhibitor, wherein a swing system fixes a high-pressure reaction kettle and makes it generate periodic swing. Compared with the traditional stirring simulation pipeline gas-liquid disturbance, the device is more suitable for the field pipeline conveying condition, but the device cannot effectively measure the viscosity change of the hydrate inhibitor system to form the hydrate for performance evaluation, and cannot realize the online medicament filling function.
Chinese patent CN 111189957a discloses a gas hydrate inhibitor performance evaluation system, which has the functions of visual observation, online agent filling and online viscosity measurement, and can quickly and effectively evaluate the performance of different gas hydrate inhibitors of the type, but the device cannot realize automatic and accurate addition of the content of the hydrate inhibitor.
Disclosure of Invention
Aiming at the technical problems, the invention provides a device and a method for automatically filling and evaluating the performance of a parallel hydrate agent, so as to overcome the defects of data singleness and accurate control of content proportion of a single high-pressure reaction kettle in one experiment.
The technical scheme adopted by the invention is as follows:
the utility model provides an automatic filling of parallelly connected hydrate agent and performance evaluation device, includes inlet system (1), infusion pump (2), first stop valve (3), vacuum pump (4), third stop valve (5), air intake system (6), relief pressure valve (7), second stop valve (8), flowmeter (9), low temperature constant temperature bath (10), high-pressure batch autoclave (11), warm-pressing transducer (12), magnetic stirrers (13), high-pressure viscosity caliber (14), fourth stop valve (15), injection pump (16), flow monitor (17), first solenoid valve (18), second solenoid valve (19), third solenoid valve (20), first reagent case (21), second reagent case (22), third reagent case (23), parallelly connected agent system (24), controller (25), computer (26).
Wherein, the liquid inlet system (1) and the gas inlet system (6) respectively inject experimental liquid and gas into the high-pressure reaction kettle (11), and the low-temperature constant-temperature groove (10) is used for controlling the temperature of the experimental liquid in the high-pressure reaction kettle (11).
Wherein, the vacuum pump (4) is connected with the reaction kettle body (11) and is used for generating negative pressure to suck the experimental liquid in the liquid inlet system (1) into the reaction kettle body (11).
Wherein, the flowmeter (9), the temperature and pressure transmitter (12), the high-pressure viscosity measurer (14) and the flow monitoring meter (17) are connected with the controller (25) through circuits, so that information acquisition is facilitated.
Wherein, flowmeter (9), warm pressure transmitter (12), high pressure viscosity caliber (14), flow monitor (17) will gather data conversion and become analog signal, and controller (25) will be analog signal conversion and will be the digital signal and with signal transmission to computer (26) storage.
The computer (26) monitors a digital signal fed back by the controller (25) through software, and sends current to the solenoid valve coil through the controller (25) to control the opening and closing states of the first solenoid valve (18), the second solenoid valve (19) and the third solenoid valve (10).
The invention can realize the accurate control and automatic filling of the species and the content of the hydrate agent by controlling the opening and closing state of the electromagnetic valve, is more time-saving and convenient to operate compared with the prior configuration, and simultaneously, the parallel agent adding system can realize the combined effect evaluation of adding a plurality of inhibitors.
Drawings
Fig. 1 is a schematic structural diagram of an automatic parallel hydrate agent filling and performance evaluation device.
In the figure 1, 1-a liquid inlet system, 2-a liquid injection pump, 3-a first stop valve, 4-a vacuum pump, 5-a third stop valve, 6-a gas inlet system, 7-a pressure reducing valve, 8-a second stop valve, 9-a flow meter, 10-a low-temperature constant temperature tank, 11-a high-pressure reaction kettle, 12-a temperature and pressure transmitter, 13-a magnetic stirrer, 14-a high-pressure viscosity measurer, 15-a fourth stop valve, 16-a reagent injection pump, 17-a flow monitor, 18-a first electromagnetic valve, 19-a second electromagnetic valve, 20-a third electromagnetic valve, 21-a first reagent box, 22-a second reagent box, 23-a third reagent box, 24-a parallel reagent adding system, 25-a controller and 26-a computer.
Detailed Description
Fig. 1 is a schematic structural diagram of an automatic parallel hydrate agent filling and performance evaluation device, and the working process of the device is as follows:
1. before the experiment begins, the first stop valve (3), the second stop valve (8), the fourth stop valve (15), the first electromagnetic valve (18), the second electromagnetic valve (19) and the third electromagnetic valve (20) are closed, the low-temperature thermostatic bath (10) is set to be the temperature required by the experiment, and the total flow of the flowmeter (9) is reset to zero.
2. And (3) after the temperature control medium in the low-temperature constant-temperature tank (10) reaches the set temperature, opening the third stop valve (5), starting the vacuum pump (4), and closing the vacuum pump (13) and the third stop valve (5) when the pressure in the high-pressure reaction kettle (11) reaches-0.09 MPa.
3. And (3) opening the first stop valve (3), starting the liquid injection pump (2), injecting the experimental liquid with the required liquid amount into the high-pressure reaction kettle (11) through the liquid injection pump (2) by the liquid inlet system (1), and closing the liquid injection pump (2) and the first stop valve (3). Open second stop valve (8), adjust relief pressure valve (7) to required pressure, inject experimental gas into high pressure batch autoclave (11) through air intake system (6), show the gas flow data that the measurement was injected by flowmeter (9) to pass through the electrical signal with data and transmit controller (25), transmit to computer (26) storage after converting into digital signal, second stop valve (8) are closed in the gas injection end.
4. Different types of hydrate inhibitors (I, II and III) are respectively placed in a first reagent box (21), a second reagent box (22) and a third reagent box (23), according to the requirements of experimental tests, a computer (26) is operated to set the type and content of the hydrate inhibitor to be added, signals are transmitted to a controller (25), taking the test of the hydrate inhibitor (I) as an example, the controller (25) transmits signals to start a first electromagnetic valve (18), an injection pump (15) is started, the hydrate inhibitor (I) in the first reagent box (21) flows through a flow monitoring meter (17), the injection content is monitored by the flow monitoring meter (17) until the requirement is met, the signals are fed back to the controller (25), a valve closing signal is transmitted to the first electromagnetic valve (18), the injection pump (15) is closed, single injection of a single inhibitor is realized, different contents of the added single inhibitor are set, the content is preferably determined by repeating the operation.
5. The hydrate agent is combined to operate, the computer (26) is operated to set the type and content of the hydrate inhibitor to be added, the controller (25) sends a signal to start the first electromagnetic valve (18), the injection pump (16) is started, the hydrate inhibitor (I) in the first reagent box (21) flows through the flow monitoring meter (17), the content of the hydrate inhibitor in the first reagent box (21) is monitored by the flow monitoring meter (17) until the hydrate inhibitor is needed and is fed back to the controller (25), a valve closing signal is sent to the first electromagnetic valve (18), the controller (25) sends a signal to start the second electromagnetic valve (19), the hydrate inhibitor (II) in the second reagent box (22) flows through the flow monitoring meter (17), the content of the hydrate inhibitor in the second reagent box (22) is monitored by the flow monitoring meter (17) until the hydrate inhibitor is needed and is fed back to the controller (25), a valve closing signal is sent to the second electromagnetic valve (19), and the controller (25) sends a signal to, the hydrate inhibitor (III) in the third reagent box (23) flows through the flow monitoring meter (17), the flow monitoring meter (17) monitors the additive content to the required content, the signal is fed back to the controller (25), a valve closing signal is transmitted to the third electromagnetic valve (20), the additive injection pump (16) is closed, and the automatic injection of the multi-agent combination is realized.
6. The method comprises the steps of starting a magnetic stirrer (13) inside a high-pressure reaction kettle (11) to stir, monitoring temperature and pressure data and hydrate viscosity data before and after adding an agent in the kettle by a temperature and pressure transmitter (12) and a high-pressure viscosity measurer (14) in real time, transmitting the data to a controller (25) through electric signals, converting the data into digital signals, transmitting the digital signals to a computer (26) to store the digital signals, carrying out macroscopic observation on hydrate generation states through a visible window on the high-pressure reaction kettle (11), and evaluating the performance of a hydrate inhibitor by combining measurement experiment data.
7. And (3) closing the magnetic stirrer (13), setting the temperature of the low-temperature constant-temperature tank (10) to be controlled to 80 ℃, standing for 3 hours, discharging the experimental gas in the high-pressure reaction kettle (11), discharging the experimental liquid, and cleaning the high-pressure reaction kettle (11) to finish the experiment.
Claims (8)
1. The device and the method for automatically filling the parallel hydrate and evaluating the performance are characterized in that: comprises a liquid inlet system (1), an air inlet system (6), a vacuum pump (4), a low-temperature constant-temperature tank (10), a high-pressure reaction kettle (11) arranged in the low-temperature constant-temperature tank, a parallel agent adding system (24) and a controller (25).
2. The parallel hydrate agent automatic filling and performance evaluation device and method according to claim 1, wherein: the liquid inlet system (1) is connected with the high-pressure reaction kettle (11) through a liquid injection pump (2) and a first stop valve (3) on a pipeline.
3. The parallel hydrate agent automatic filling and performance evaluation device and method according to claim 1, wherein: and the air inlet system (6) is connected with the high-pressure reaction kettle (11) through a pressure reducing valve (7), a second stop valve (8) and a flow meter (9) on the pipeline.
4. The parallel hydrate agent automatic filling and performance evaluation device and method according to claim 1, wherein: the vacuum pump (4) is connected with the high-pressure reaction kettle (11) through a third stop valve (5) on the pipeline.
5. The parallel hydrate agent automatic filling and performance evaluation device and method according to claim 1, wherein: the high-pressure reaction kettle (11) is provided with a visual window, a temperature and pressure transmitter (12), a magnetic stirrer (13) and a high-pressure viscosity measurer (14) are arranged in the high-pressure reaction kettle, and a fourth stop valve (15) is arranged on a lower connecting liquid drainage pipeline.
6. The parallel hydrate agent automatic filling and performance evaluation device and method according to claim 1, wherein: the parallel agent adding system (24) comprises a first electromagnetic valve (18), a second electromagnetic valve (19), a third electromagnetic valve (20), a first reagent box (21), a second reagent box (21) and a third reagent box (23) which are connected in parallel and are respectively connected, and the parallel agent adding system (24) is connected with the high-pressure reaction kettle (11) through an agent injection pump (16) through a flow monitoring meter (17) on a pipeline.
7. The parallel hydrate agent automatic filling and performance evaluation device and method according to claim 1, wherein: the controller (25) is connected with the computer (26) through a circuit, and can receive output signals of the flowmeter (9), the temperature and pressure transmitter (12), the high-pressure viscosity measurer (14) and the flow monitoring meter (17), so as to control the opening and closing states of the first electromagnetic valve (18), the second electromagnetic valve (18) and the third electromagnetic valve (20).
8. The parallel hydrate agent automatic filling and performance evaluation device and method according to claim 1, wherein: by setting a computer (26) program, the opening and closing control of a first electromagnetic valve (18), a second electromagnetic valve (19) and a third electromagnetic valve (20) in a parallel agent adding system (24) can be realized by a controller (25), and a flow monitoring meter (17) feeds back a content monitoring signal, so that the automatic accurate adding and the combination of the content of the hydrate agent in a first reagent box (21), a second reagent box (21) and a third reagent box (23) are completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011414499.2A CN112362822A (en) | 2020-12-05 | 2020-12-05 | Automatic parallel hydrate agent filling and performance evaluation device and method |
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| CN202011414499.2A CN112362822A (en) | 2020-12-05 | 2020-12-05 | Automatic parallel hydrate agent filling and performance evaluation device and method |
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| CN202011414499.2A Pending CN112362822A (en) | 2020-12-05 | 2020-12-05 | Automatic parallel hydrate agent filling and performance evaluation device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113903236A (en) * | 2021-10-22 | 2022-01-07 | 中铁二院工程集团有限责任公司 | Intelligent temperature and pressure control difference water-rock action contrast monitoring experimental device and experimental method thereof |
| CN116046778A (en) * | 2023-03-06 | 2023-05-02 | 西南石油大学 | On-line visual test equipment and method for hydrate generation and inhibition effect |
-
2020
- 2020-12-05 CN CN202011414499.2A patent/CN112362822A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113903236A (en) * | 2021-10-22 | 2022-01-07 | 中铁二院工程集团有限责任公司 | Intelligent temperature and pressure control difference water-rock action contrast monitoring experimental device and experimental method thereof |
| CN116046778A (en) * | 2023-03-06 | 2023-05-02 | 西南石油大学 | On-line visual test equipment and method for hydrate generation and inhibition effect |
| CN116046778B (en) * | 2023-03-06 | 2023-05-30 | 西南石油大学 | On-line visual test equipment and method for hydrate generation and inhibition effect |
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