Automatic thickened oil detection system and automatic oil extraction assistant injection amount adjusting system

Abstract

The invention discloses an automatic thickened oil detection system which comprises a detection container, a crude oil water content analysis meter, a stirring device and a liquid level sensor. An exhaust device is arranged on the top of the detection container. An oil inlet of the detection container is connected to a crude oil main pipe through a first check valve and a first electric valve, and a flowmeter is arranged between the connection point and the connecting-in point of the crude oil main pipe. The stirring device is installed at the bottom of the detection container and connected to the crude oil main pipe through a second electric valve, a booster pump and a second check valve. The crude oil water content analysis meter is connected into the detection container to be used for detecting the water content of thickened oil inside the container. The liquid level sensor is arranged on the detection container and connected to the first electric valve to be used for detecting the height of the thickened oil in the detection container and controlling the first electric valve to be closed when the height of the thickened oil is larger than a preset value. The invention further provides an automatic oil extraction assistant injection amount adjusting system. By the adoption of the automatic thickened oil detection system, on-line automatic thickened oil detection can be achieved.

Description

technical field [0001] The invention relates to the technical field of petroleum exploitation, in particular to an automatic detection system for heavy oil and an automatic adjustment system for the injection amount of a production aid agent. Background technique [0002] The global oil resources are about 9-13 trillion barrels (1.4-2.1 trillion cubic meters), of which conventional crude oil only accounts for about 30%, and the rest are heavy oil, super heavy oil and asphalt. Generally speaking, the thicker the crude oil, the lower its economic value. But against a backdrop of strong oil demand, high oil prices and falling conventional crude production, the industry's focus in many parts of the world is turning to heavy oil extraction to replenish its own oil reserves. The development of heavy oil has brought new challenges and difficulties to crude oil production companies in terms of fluid data collection and analysis and enhanced oil recovery; however, by adopting new te...

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Problems solved by technology

[0008] 1. "Open" fluid sampling is likely to cause the risk of harmful gas leakage and poisoning of personnel;

[0009] 2. It is impossible to realize real-time detection and timely adjust the injected chemical dosage according to the detection results, which may easily cause waste or fail to achieve the maximum production increase effect;

[0010] 3. The dosage of chemical agents cannot be adjusted in time according to the production situation, causing production fluctuations and reducing the production capacity of oil wells;

[0011] 4. After fluid sampling, it must be analyzed in a professional laboratory. The sample is easy to precipitate and stratify, and it is difficult to reflect the production parameters in the well environment (temperature, pressure, mixing degree), and the data is not targeted;

[0012] 5. The pressure of the existing pipeline-type detection instruments is below 6.4MPa, it is difficult to achieve the same pressure (20MPa) as that in the oil well, and it is impossible to realize direct detection;

[0013] 6. The amount of sampling and testing in the production process is very large, which requires a lot of manpower and material resources, and will also cause unnecessary pollution and loss

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