Linear motor vibration cementing device and cementing method based on rfid control

Abstract

The invention discloses a linear motor vibration cementing device and a cementing method based on RFID control, which belong to the technical field of oil and gas well engineering. The device includes an upper joint, a signal generating ball, a sealing ring, a control assembly, a high temperature resistant battery, a battery installation sleeve, an outer sleeve, a vibration generating assembly and a lower joint. Run the RFID-controlled linear motor vibration cementing device into the preset position in the horizontal well, put a signal generating ball into the casing string at the wellhead on the surface, activate the control component, and the control component controls the high-temperature linear motor to work, so that the vibration generating component works. Vibration, the acceleration sensor detects the acceleration generated by the vibration, and the acceleration circuit board tests the vibration amplitude of the vibration cementing device. Through algorithm analysis, the frequency sweep circuit board searches for the best vibration frequency within the frequency sweep range, and the motor control circuit board controls the high temperature resistance The linear motor works continuously at the optimum vibration frequency point.

Description

technical field [0001] The invention relates to the technical field of oil and gas well engineering, in particular to a linear motor vibration cementing device and a cementing method based on RFID control. Background technique [0002] In the process of oil extraction, cement slurry needs to be injected after the cementing operation is put into the casing. The annulus bonding strength and sealing quality of the cement slurry directly affect the cementing quality. In order to ensure the cementing quality and prevent oil, gas and For water mixed channeling, vibration cementing device should be used during the cementing operation to improve the density and uniformity of cement slurry and ensure the bonding strength of the interface. At present, the commonly used vibration cementing devices at home and abroad include audio frequency vibration cementing, annular pulse vibration cementing, mechanical vibration cementing and hydraulic pulse vibration cementing, etc. Among them, the...

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Problems solved by technology

At present, the commonly used vibration cementing devices at home and abroad include audio frequency vibration cementing, annular pulse vibration cementing, mechanical vibration cementing and hydraulic pulse vibration cementing, etc. Among them, the hydraulic pulse vibration cementing device is used in oil production The most widely used vibration cementing device, but the vibration cementing device can only produce axial vibration, and the amplitude is uncontrollable. The other vibration cementing tools also have many defects in the use process. With the development of vibration cementing technology, for vibration The requirements for parameter accuracy and vibration wave effect are constantly improving, and the above-mentioned vibration devices have been difficult to meet the current vibration cementing requirements

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