Memory-type pressure acquisition system and oil well pressure acquisition method thereof

Abstract

The invention relates to a memory-type pressure acquisition system and an oil well pressure acquisition method thereof; the system comprises a lower computer and an upper computer, wherein the lower computer internally comprises a pressure sensor which acquires the information of pressure parameters and converts the information into electric signals, am amplifier, an analog-to-digital converter, a single chip microcomputer used for data acquisition, data access and clock parameter setting of the system and processing digital signals, a real-time clock circuit, a memorizer, a liquid crystal display module, a keypad control circuit used for inputting storage members and sampling interval time, a communication interface used for conveying the information into a microcomputer and a power module and a power supply which are used for supplying electricity to the system, can realize functions such as the pressure data acquisition, A / D conversion, data processing, storage and display and the like so as to meet the requirements that the oil well acquires the maximum oil recovery rate. The memory-type pressure acquisition system realizes functions of the vast pressure data storage, the input of the time and oil well numbers and conveying data into the upper computer.

Description

technical field [0001] The invention relates to the technical field of oilfield exploration, in particular to an oilfield water injection pressure acquisition system and acquisition method. Background technique [0002] With the in-depth development of petroleum technology, pressure gauges play an increasingly significant role in oilfield exploration and development. The electronic pressure gauge is favored by the majority of petroleum engineering and technical personnel for its high accuracy and intuitive display. Electronic pressure gauges have gradually replaced mechanical pressure gauges and become the mainstream of downhole pressure collection. [0003] In the process of oil extraction, it is necessary to drive high-pressure water into the well at high speed, and then pump the water-oil mixture to the surface. Then, the water and oil are separated. Because there is a certain curve relationship between the water pressure and the oil yield, the pressure and oil yield c...

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Problems solved by technology

[0004] The invention provides a storage type pressure acquisition system and an oil well pressure acquisition method thereof. The acquisition system in the prior art has a large volume, high power consumption, and cannot acquire and record downhole pressure and temperature data for a long time. When the user performs an illegal shutdown operation Technical issues that can easily cause important data loss

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