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Screen display method for imaging logging data

A screen display and logging data technology, applied in the direction of digital output to display equipment, buildings, etc., can solve the problems of slow graphics refresh speed, slow display speed, large graphics range, etc., to reduce the number of data reading and drawing times , Improve the effect of drawing speed

Active Publication Date: 2015-09-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the amount of data involved in the drawing process of acoustoelectric imaging images is very large, and the range of the drawn graphics is also large.
The drawn well logging diagrams are usually drawn on the screen or printed out after a large number of numerical calculations, proportional calculations, coordinate transformations and coordinate mappings, and the graphics refresh speed is usually too slow
Especially for imaging logging with high sampling density and large depth scale, more image information needs to be displayed for the same depth segment, and the display speed is very slow

Method used

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  • Screen display method for imaging logging data
  • Screen display method for imaging logging data
  • Screen display method for imaging logging data

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0041] Combine now figure 1 The flow chart shown in this embodiment describes in detail the method for displaying the imaging logging data on the screen.

[0042] In step S101, according to the display resolution of the screen and the drawing scale, calculate the logging control volume segment to be displayed in the effective drawing height interval of the screen, and the logging control volume interval corresponding to the vertical point distance of the screen; preferably, in this embodiment The logging control interval represents the depth interval, and the logging control interval represents the depth interval.

[0043] The display resolution of the screen and the effective drawing height range of the screen can be obtained through the device context DC (Device Context), determined by the display device hardware parameters.

[0044] The drawing scale is preset by the user. In the image display process, the display scale of the entire logging image can be changed by contro...

Embodiment 2

[0066] This embodiment provides a method for displaying imaging logging data on the screen. The difference from Embodiment 1 is that when an event occurs that scrolls the screen image, the method provided by this embodiment can draw the image to be displayed in the memory. A screen of images is then printed to the screen, thereby realizing continuous scrolling display of logging images.

[0067] The following combination Figure 4 The flow of the method provided in Example 2 will be described in detail.

[0068] In step S401, according to the display resolution of the screen and the drawing scale, the logging control volume segment to be displayed in the effective drawing height interval of the screen and the corresponding logging control volume interval corresponding to the vertical point distance of the screen are calculated.

[0069] In step S402, a well logging control line to be displayed is set around the well wall according to the well logging control volume section an...

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Abstract

The invention discloses a screen display method for imaging logging data. According to the display resolution of a screen and a drawing scale, a logging control quantity segment to be displayed in an effective drawing height interval of the screen and a logging control quantity interval corresponding to the longitudinal dot pitch of the screen are calculated; according to the logging control quantity segment and the logging control quantity interval, logging control lines to be displayed are arranged around a well wall; according to an imaging angle, the number of transverse sampling points is set; a drawing buffer zone is established in a memory, wherein the height of the drawing buffer zone indicates the number of the logging control lines to be displayed, and the width of the drawing buffer zone indicates the number of the transverse sampling points; images of the logging data at the logging control lines are drawn in the drawing buffer zone, and the images in the drawing butter zone are copied to the screen to be displayed. By means of the method, the logging data reading frequency and the drawing frequency can be reduced, and therefore the logging image drawing speed is increased.

Description

technical field [0001] The invention relates to the technical field of well logging image display, in particular to a screen display method for imaging well logging data. Background technique [0002] Imaging logging technology uses a sensor array to scan and measure downhole, collects a large amount of bottom layer information along the borehole longitudinal, circumferential or radial direction to obtain logging data, and obtains a two-dimensional image of the borehole wall through image processing technology after being transmitted to the uphole. The traditional well logging data display adopts the depth-by-depth point drawing technology, that is, the data is read point by point according to the depth record sequence, and then drawn on the screen by depth point to display the well logging image. This technique is feasible for situations with low sampling density and small data volume, such as conventional well logs. [0003] However, a large amount of data is involved in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14E21B47/002
Inventor 王卫谢关宝陆黄生廖东良承达瑜吴非
Owner CHINA PETROLEUM & CHEM CORP