Real-time image displaying method based on ultrasonic imaging logging data collection process

Abstract

The invention discloses a real-time image displaying method based on an ultrasonic imaging logging data collection process. The method comprises the steps that a drawing buffer area and an array are distributed in an internal storage, and a color bar is established; when a computer starts a data receiving thread, if data is not received, the computer is in a waiting state, otherwise, received datais stored in the array, then whether or not the depth difference meets the predetermined condition is judged, if yes, a drawing thread is started, and if not, the data continues to be stored in the array; after the drawing thread is started, a temporary drawing buffer area is established, an amplitude in the array and all sampling points of traveling time difference data are converted into colorsin the color bar, and then the colors are output to the temporary drawing buffer area; then, according to the logging direction, images in the temporary drawing buffer area are output to the drawingbuffer area which is established at first according to different modes and output to a screen at last, and the drawing thread is hung for waiting for starting of a next thread. According to the method, the two-dimensional images can be quickly drawn in real time, and in the collection process, through scroll bars, the drawn images are checked anytime.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic imaging well logging imaging, and in particular relates to a method for displaying images on a screen in real time during the acquisition process based on an ultrasonic imaging well logging tool. Background technique [0002] Ultrasonic imaging logging is to use the ultrasonic transducer to rotate the borehole wall to scan the borehole wall in all directions 360 degrees, collect the amplitude and travel time difference signal of the ultrasonic wave reflected by the borehole wall, and then upload it to the ground computer acquisition software, and through the image The processing technology presents two-dimensional images of amplitude and travel time difference in real time to reflect wellbore information. [0003] Every time the transducer rotates once, it sends and receives several ultrasonic signals, and each signal is a horizontal sampling point. The more sampling points, the higher the hori...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of drawing two-dimensional images of ultrasonic imaging logging data, due to the large amount of data and the large size of the drawn images, the drawing speed is usually slow and the acquisition position of the probe lags behind.

At the same time, during the acquisition process, you need to use the scroll bar to look back at the drawn image, and it takes a long time to read or generate an image each time

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