Detection and transmission method and device of torque, load and rotational speed of screw pump pumping well

Abstract

The invention discloses a detection and transmission method of a torque, the load and the rotational speed of a screw pump pumping well. During running of the screw pump pumping well, parameters of the torque, the load and the rotational speed of a polished rod of the screw pump pumping well are collected and are treated with data operation after signal conditioning, and then data subjected to data operation treatment is stored or is wirelessly transmitted. In the device for realizing the method, a shell is provided with a solar collection board, a torque load sensor, a rotational speed sensor and a wireless transmitting antenna and is internally provided with a storage battery, a power voltage stabilizing module, a signal conditioning module, a data operation treatment module, a storage module and a wireless transceiving module. With the adoption of the method, the running condition of the screw pump pumping well can be monitored in real time, thereby the accuracy of diagnose is ensured; and with the adoption of the device, the torque, the load and the rotational speed of a screw pump can be detected under the conditions without shutdown and artificial interference, thereby the safety, the reliability and the real-time performance of detection are ensured.

Description

technical field [0001] The invention relates to the detection of screw pump wells, in particular to a method and device for detecting torque, load and rotating speed of screw pump wells. Background technique [0002] At present, when detecting the working conditions of screw pump pumping wells, it is necessary to combine the load, torque, speed sensor and the collector to detect. There are batteries, circuit boards, storage boards and other modules inside the collector. Load, The torque and speed sensors are fixed on the well of the screw pump pumping unit for a long time. During the detection process, the well of the screw pump pumping unit needs to be shut down first, then the collector is installed, and the signal line of the collector is connected to the load, torque, speed, and sensors. Then turn on the screw pump pumping well for detection, and the collector will store the detection data during the detection process. After the detection is completed, it is necessary to...

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Problems solved by technology

The shortcomings of the above-mentioned existing detection methods are: if the oil well has a large sand content, thick oil, or a large power-frequency start-up torque, it may cause the shaft of the screw pump pumping unit to break, pump leakage, pipe leakage, and partial wear of the rod and pipe. , belt slipping, motor starting current is too large to burn the motor and other faults, causing direct economic losses to oilfield enterprises; the entire detection process is cumbersome, and the time for collecting data is limited to manual inspection on the well, the workload is heavy, and the detection data cannot be reflected in real time, etc., which limits the Analysis of Oil Recovery Technology in Screw Pump Pumping Wells

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