Indicator diagram performance analysis-based pumping unit intelligent equipment and calculation method thereof

Abstract

The invention belongs to the field of safety production control over a pumping unit in an oil field, and particularly relates to indicator diagram performance analysis-based pumping unit intelligent equipment. In order to perform timely, effective and corresponding treatment when abnormity occurs in oil well production, the equipment comprises the pumping unit and far end RTU equipment; the pumping unit comprises a motor control contactor, a load sensor and a displacement sensor; the far end RTU equipment comprises an ARM9 processor and a power source module connected with the ARM9 processor; two paths of special high speed analog quantity sampling channels on the ARM9 processor are used for collecting the information of the load sensor and the displacement sensor of the pumping unit; the motor control contactor of the pumping unit is controlled by two paths of DO digital output channels on the ARM9 processor connected with a storage. The conditions of normal oil extraction, insufficient oil well liquid supply, breaking of a sucker rod, airlock phenomenon and the like can be analyzed and judged according to set parameters and collected indicator diagram data, and the pumping unit can be timely shut down in a linkage control mode.

Description

technical field [0001] The invention belongs to the field of safe production control of pumping units in oil fields, and in particular relates to an intelligent device for pumping units and a calculation method thereof based on the analysis of working conditions of a dynamometer diagram. Background technique [0002] With the development of the economy, the position of energy industries such as oil and natural gas in the national economy has become more and more prominent. At present, due to the influence of factors such as oil layer distribution, topography, and landform in domestic oilfields, it is extremely difficult to manage oil well equipment in oilfields. Traditional oilfield production mainly relies on manual well patrolling, and it is impossible to detect insufficiency of liquid supply, wax production, and sand formation in oil wells in time. , stuck rods, motor failures, etc., not only cause waste of electric energy, wear and tear of equipment, but also easily caus...

AI Technical Summary

Problems solved by technology

At present, due to the influence of factors such as oil layer distribution, topography, and landform in domestic oilfields, it is extremely difficult to manage oil well equipment in oilfields. Traditional oilfield production mainly relies on manual well patrolling, and it is impossible to detect insufficiency of liquid supply, wax production, and sand formation in oil wells in time. , stuck rods, motor failures, etc., not only cause waste of electric energy, wear and tear of equipment, but also easily cause damage to motors and pumping unit equipment

[0003] In oilfield production, the dynamometer diagram is a commonly used and effective tool for analyzing the production status of oil wells. The existing dynamometer diagram analysis mostly uses the dynamometer diagram instrument for data collection, and the data is sent back through the computer to draw the dynamometer diagram, and the operating conditions of the oil machine are manually analyzed. Make relevant criteria, and then notify the operation and maintenance personnel to carry out corresponding control and maintenance operations, which has many links and low efficiency

Aiming at some problems that occur more frequently and cannot be dealt with in time, there are many problems such as waste of energy consumption (empty pumping, insufficient liquid supply), motor damage, shortened life of oil production components, etc.

Images