Method and device for compressing and storing indicator diagram data of oil pumping unit

Abstract

The invention provides a method and a device for compressing and storing indicator diagram data of an oil pumping unit. The method comprises the following steps: S1, acquiring the indicator diagram data, and calculating to acquire difference value data of adjacent data in the indicator diagram data; S2, selecting difference value data within a preset value range from the difference value data for serving as normal difference values; S3, using data from which the normal difference values are removed in the difference value data as special difference values; S4, storing source point data in the indicator diagram data; storing the quantity of the special difference values and the positions and data values of the special difference values in sequence; storing the data of the normal difference values in sequence according in a bitwise mode. By adopting the embodiment of the invention, the indicator diagram data can be stored in a real-time database in a non-destructive way, and the storage space and maintenance cost are saved.

Description

technical field [0001] The application belongs to the technical field of oil and gas production data processing, and in particular relates to a method and device for compressing and storing data of an indicator diagram of a pumping unit. Background technique [0002] At present, most of the oil wells used in the production of oil and gas fields on the continental shelf of our country are pumping wells. Real-time collection of production data on the pumping unit can form a pumping unit dynamometer diagram. Through computer processing and analysis of the dynamometer data, the pumping unit well can be remotely monitored, working condition diagnosis and industrial fluid production of the oil well. measure. Due to the high maturity of this technology, it can change the traditional production method, reduce labor costs, and improve production efficiency. In recent years, this technology has been rapidly developed and widely used in oil production. [0003] After the dynamometer ...

AI Technical Summary

Problems solved by technology

This method needs to deploy at least one database server in each operation area and install a set of relational database, each costing about 100,000 yuan

But there are still two problems in this storage method: (1) utilize relational database to carry out the processing of real-time data, its processing speed is much slower than real-time database, needs to carry out data conversion with data processing software SCADA connection, is unfavorable for real-time dynamic analysis; (2) The cost of this storage method is also very high. If calculated on the basis of 200 wells in each operation area, the investment for each operation is 100,000 yuan, and at least 100 million yuan is required for the full implementation of PetroChina.

[0005] The dynamometer data collected and stored in the prior art is large, and the cost of real-time database storage and relational database storage equipment is very high, which increases the production cost of oil field data storage and server storage resources, and also reduces the later data reading, Calling, synchronization and other processing speed

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