Method and apparatus for interactive curved surface borehole interpretation and visualization
First Claim
Patent Images
1. A method for projecting borehole data obtained from a scan of a borehole wall onto a display surface using a video projector connected to a computer wherein said computer graphic image is projected onto a concave display surface and wherein said computer graphic image is derived from a set of borehole data, said method comprising:
- a) storing a set of 2D borehole data in a memory of said computer;
b) creating a mathematical model for said concave display surface in said memory, wherein said mathematical model at least partially intersects said set of 2D borehole data in the memory;
c) extracting borehole data from said set of 2D borehole data intersecting said mathematical model in said memory to provide an extracted data set; and
d) projecting said extracted data set onto said concave display surface to produce a computer graphic image of spatially correct borehole data.
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Abstract
An enlarged computer graphic image of borehole data is displayed on a concave three-dimensional surface, preferably a semi-cylindrical shape. Thus providing an enlarged image of a borehole surface where the data is spatially correct in three-dimensions, and which increases the ease with which interpreters can locate geological features such as surfaces, faults, and fractures.
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Citations
7 Claims
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1. A method for projecting borehole data obtained from a scan of a borehole wall onto a display surface using a video projector connected to a computer wherein said computer graphic image is projected onto a concave display surface and wherein said computer graphic image is derived from a set of borehole data, said method comprising:
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a) storing a set of 2D borehole data in a memory of said computer;
b) creating a mathematical model for said concave display surface in said memory, wherein said mathematical model at least partially intersects said set of 2D borehole data in the memory;
c) extracting borehole data from said set of 2D borehole data intersecting said mathematical model in said memory to provide an extracted data set; and
d) projecting said extracted data set onto said concave display surface to produce a computer graphic image of spatially correct borehole data. - View Dependent Claims (2, 3, 4, 5, 6)
providing said computer with physical data for defining said mathematical model including at least;
i) a reference point within the volume to be modeled for defining the origin of said mathematical model;
ii) physical system dimensions including at least physical dimensions for the surface to be displayed and desired size and orientation of said mathematical model;
scaling said mathematical model with reference to said set of data;
determining intersections between said mathematical model and said set of data; and
extracting data along model intersections with said volume of data to provide an extracted data set.
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4. A method in accordance with claim 1, wherein said step of projecting said extracted data set comprises:
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providing said computer with data concerning screen/projector geometry including at least screen/projector focal distance and desired ray projection volume;
mathematically locating an image plane within the ray projection volume of said projector;
mapping said extracted data set onto said image plane to provide a mapped data set;
using texture mapping techniques for transferring said mapped data set from said image plane to a video image buffer; and
projection the image formed in said video image buffer.
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5. A method in accordance with claim 1, wherein said step of projecting said extracted data set comprises:
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providing said computer with data concerning screen/projector geometry including at least screen/projector focal distance and desired ray projection volume;
mathematically locating an image plane within the ray projection volume of said projector;
mapping said extracted data set onto said image plane to provide a mapped data set;
using direct pixel mapping techniques for transferring said mapped data set from said image plane to a video image buffer; and
projecting the image formed in said video image buffer.
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6. A method in accordance with claim 1, additionally comprising the following step:
animating successive adjacent images derived from said volume of data to effect lifelike movement of said borehole data to effect lateral movement and angular movement within the borehole.
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7. An apparatus for projecting an enlarged computer graphic image of spatially correct borehole data obtained from a scan of a borehole wall onto a concave display surface, where in said computer graphic image is derived from a set of borehole data, said method comprising:
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a computer programmed for;
i) storing a set of 2D borehole data in a memory of said computer;
ii) creating a mathematical model for said concave display surface in said memory, wherein said mathematical model at least partially intersects said set of 2D borehole data in the memory;
ii) extracting wellbore data from said set of 2D borehole data intersecting said mathematical model in said memory to provide an extracted data set; and
iv) projecting said extracted data set onto said concave display surface via a video image buffer to produce a computer graphic image of spatially correct borehole data;
a video projector connected to said computer for projecting said computer graphic image.
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Specification