Ultrasonic well periphery imaging logging instrument

Abstract

The invention discloses an ultrasonic well periphery imaging logging instrument. The ultrasonic well periphery imaging logging instrument comprises a mounting plate, sliding rods, an end cover, a mounting cylinder, a sliding piece, a rotating shaft and a lifting assembly used for driving the mounting plate to move in the depth direction of a petroleum well; the mounting plate is provided with a shell and a fixing plate; the mounting cylinder is in threaded connection with the fixing plate; the end cover is arranged on the end surface, away from the center of the mounting plate, of the mountingcylinder; one ends of the sliding rods are connected with a fork frame provided with a roller, and the other ends of the plurality of sliding rods extend into the mounting cylinder through the end cover and is connected with the sliding piece slidably arranged in the mounting cylinder; the sliding piece is connected with a spring in the mounting cylinder; a first driving device, a central processor and a wireless communication module are arranged in the shell; the rotating shaft is rotationally connected with the bottom surface of the shell and extends into the shell, the rotating shaft is connected with a supporting plate and is in transmission connection with the first driving device, and a current collecting ring is arranged in a hollow bin arranged on the rotating shaft; and an ultrasonic transducer and a mud wave detector are arranged on the lower end face of the supporting plate. The ultrasonic well periphery imaging logging instrument can stably move in a to-be-detected petroleum well and can effectively detect the petroleum well.

Description

technical field [0001] The invention relates to the technical field of petroleum well logging, in particular to an ultrasonic peripheral imaging logging tool. Background technique [0002] With the deepening of oilfield development, more and more complex well conditions are encountered, and in the process of completion and development of wells, cementing quality evaluation and casing damage detection have become important factors affecting oilfield development. The quality of the cementing in the development well is directly related to the development plan of the oil and gas well in the later stage, whether the oil and gas in the completion well can be efficiently recovered; whether the water layer can be well sealed. The quality of the casing in the development well is directly related to the production cycle of the oil and gas well and the life of the well. However, when the existing oil well quality detection is in use, the detection device needs to be extended into the ...

AI Technical Summary

Problems solved by technology

However, when the existing oil well quality detection is in use, the detection device needs to be extended into the well along the depth direction of the oil well. During the use of the detection device, it is easy to contact and collide with the inner wall of the oil well, which affects its service life and affects the detection results. It will also have a certain impact; for this reason, this application proposes an ultrasonic imaging logging tool around the well

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