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A method for displaying a three-dimensional image

A technology of three-dimensional images and display methods, used in earth-moving drilling, surveying, wellbore/well components, etc.

Active Publication Date: 2019-10-11
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are technologies and reports on the graphic drawing of downhole pipe strings at home and abroad, but there is no such thing as a multi-arm caliper imaging logging tool and a magnetic wall thickness logging tool for characterizing the detailed damage of the wellbore using the 3D modeling technology. Reports on method research and application of 3D data display

Method used

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  • A method for displaying a three-dimensional image
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  • A method for displaying a three-dimensional image

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Embodiment

[0152] Figure 15 (a) and (b) represent the results of three-dimensional modeling of the depth range of 112-113 meters of certain logging data using the method of the present invention.

[0153] exist Figure 15 Among them, the two casing 3D imaging images can accurately simulate and display the shape of the downhole casing, which is consistent with the actual downhole casing shape. From Figure 15 From the perspective of the two graphics, the present invention has obvious advantages in the three-dimensional display of casing details, and can intuitively display the specific details of the casing. In addition, it provides two schemes of non-transitional color and transitional color in terms of color processing of three-dimensional graphics , the transition color makes the corrosion deformation of the casing more in line with the natural law and more scientific and reasonable, and the 3D graphics of the casing with the transition color are closer to the real situation of the ...

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Abstract

The invention relates to a display method of a three-dimensional image, wherein the display method adopts data of a multi-arm caliper imaging logging instrument and a magnetic wall thickness logging instrument on the basis of an irregular space quadrangle. The display method of the three-dimensional image comprises the steps that data loading is conducted, specifically, the logging data obtained by the logging instruments are loaded; a space irregular quadrilateral grid is established, specifically, the space irregular quadrilateral grid is established according to the logging data loaded in the data loading step; and space irregular quadrilateral grid loading is conducted, specifically, the space irregular quadrilateral grid is loaded. The space irregular quadrangle is established for thedata of the multi-arm caliper imaging logging instrument and the magnetic wall thickness logging instrument, by combining a depth dimension longitudinal interpolation and a circumferential cubic spline combined interpolation method on the basis of the cosine function and the dirichlet boundary condition, the three-dimensional figure of the data of the multi-arm caliper imaging logging instrumentand the magnetic wall thickness logging instrument is built, the damage and corrosion satiations of oil tubes or sleeves in shafts can be intuitively displayed, and compared with other three-dimensional modeling technologies, the display method is quick and accurate.

Description

technical field [0001] The present invention relates to a multi-arm borehole imaging logging tool and a magnetic wall thickness logging tool data wellbore display method based on an irregular space quadrilateral, in particular to a multi-arm borehole imaging logging tool (Mutil-FingerImage Tool) A method for three-dimensional display of the wellbore by combining with the data of the Magnetic Thickness Tool (Magnetic Thickness Tool) and spatial trapezoidal three-dimensional modeling technology. Background technique [0002] The multi-arm caliper imaging logging tool is mainly used to measure the change of the inner diameter of the pipe string in the oil well. Through the change of the collected inner diameter value, the deformation, perforation, inner wall corrosion and scaling of the pipe string are detected. Multi-arm caliper imaging logging tools have several specifications such as X-Y, 8-arm, 12-arm, 18-arm, 20-arm, 24-arm, 28-arm, 36-arm, 40-arm, 60-arm and 80-arm. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/08
Inventor 伍东和志明郭玉庆黄大鹏仵燕刘超樊春华李斐赵东傅少庆唐小梅
Owner BC P INC CHINA NAT PETROLEUM CORP
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