A method for detecting chamber pressure of an oil recovery screw pump

Abstract

The invention discloses a chamber pressure detection device and detection method of an oil production screw pump, which comprises an oil production screw pump, a clamp body, a pressure sensor, a positioning member, a front seal ring and a rear seal ring, and the clamp body is set on the outer pipe of the oil production screw pump The back of the wall is fixedly connected, one of the clamp body is provided with a threaded through hole, the front sealing ring is placed in the through hole and contacts with the oil production screw pump, the positioning part is placed in the through hole and contacts with the oil production screw pump, the pressure The detecting end of the sensor is connected with the through hole, and the other end of the positioning piece is in contact with the detecting end of the pressure sensor through the rear sealing ring. Compared with the prior art, the present invention can detect the pressure of the internal chamber of the screw pump in real time, and install multiple present inventions on other chambers of the screw pump at the same time, and can simultaneously detect the pressure value and internal pressure of different sealed chambers Distribution conditions and lift pressure generation and transfer rules, etc., the present invention has simple structure, low cost, good use effect, and has the value of popularization and use.

Description

technical field [0001] The invention relates to a pressure detection device and method of a screw pump, in particular to a pressure detection device and a detection method of an oil recovery screw pump chamber. Background technique [0002] The oil production screw pump is an important lifting equipment for lifting oil from the underground to the ground during the oil production process, and is widely used in major oil fields across the country. The lifting pressure of the oil production screw pump is the most important working parameter, and the lifting pressure affects the application range of the oil production screw pump to a large extent. However, the internal fluid of the screw pump for oil production is sealed inside the screw pump and cannot be observed and detected. At present, only the pressure and flow at the inlet and outlet of the screw pump can be detected. Therefore, the research on the formation process of the lifting pressure of the screw pump inside the sc...

AI Technical Summary

Problems solved by technology

However, the internal fluid of the screw pump for oil production is sealed inside the screw pump, which cannot be observed and detected. Currently, only the pressure and flow at the inlet and outlet of the screw pump can be detected.

Therefore, the research on the formation process of the lifting pressure of the screw pump inside the screw pump can only be verified by numerical simulation methods, and cannot be verified by experimental methods.

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