Check valve capable of analyzing liquid supply condition of oil well and method for analyzing liquid supply condition of oil well

Abstract

The invention provides a check valve capable of analyzing the liquid supply condition of an oil well and a method for analyzing the liquid supply condition of the oil well. The check valve capable of analyzing the liquid supply condition of the oil well comprises a valve body, a valve element, a seal seat and a spring, wherein the valve element, the seal seat and the spring are located in the valve body, and one end of the spring is connected with the valve body, the other end of the spring is connected with the valve element, and the seal seat is fixed into the valve body. Under the action of the spring, it is achieved that the valve element is in close contact with the seal seat. The check valve capable of analyzing the liquid supply conditioner of the oil well further comprises a lighting unit, a cooling unit, a support, a control chamber, a collection box, an indication rod, a data storage unit, a wireless transmitting unit, an antenna, an image sensor, a temperature sensor and a data processing unit, and through all the units, collection, analysis, calculation and transmission of images are achieved. The check valve capable of analyzing the liquid supply condition of the oil well is easy to install on site. Contactless measurement and the high-definition image sensor are adopted, the accuracy of collected data is high, the real-time performance is high, the liquid supply change condition of the oil well in each period can be reflected, and the function of automatic diagnosis of the oil well working condition is achieved.

Description

Technical field [0001] The invention belongs to the technical field of oilfield exploitation monitoring, and particularly relates to a check valve capable of analyzing the liquid supply situation of an oil well and an analysis method of the oil well liquid supply situation. Background technique [0002] With the continuous development of oilfields, early oil wells have entered a low-yield and unstable stage. At this stage, the operation of the oil well is mainly reflected by the automatic well flow detection device and the oil well indicator diagram. The oil well flow automatic detection device can only measure each well in turn The fluid production of the well reflects the actual fluid supply of the oil well through the change of the fluid production; the oil well indicator diagram reflects the relationship between displacement and load, and indirectly reflects the operation of the oil pump through the change of load; through the above two methods, It can reflect the changes of ...

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Problems solved by technology

[0002] With the continuous development of the oilfield, the early oil wells have entered the stage of low production and instability. At this stage, the oil well operation is mainly reflected by the oil well flow automatic detection device and the oil well indicator diagram. The oil well flow automatic detection device can only measure each well in turn. The liquid production rate of the well reflects the actual liquid supply situation of the oil well through the change of the liquid production rate; the dynamometer diagram of the oil well reflects the relationship between the displacement and the load, and indirectly reflects the operation of the oil well pump through the change of the load; through the above two methods, It can reflect the change of oil well working conditions in stages, but it cannot reflect the change of fluid supply of oil well in each operation cycle in real time

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