Method of making a rock-pore micromodel involving generation of an accurate and reliable template image of an actual reservoir rock pore system
First Claim
1. A method of making a micromodel of a rock pore system comprising:
- transmitting light through a thin section of a rock containing a pore system, said thin section having a dyes material disposed in said pore system to enhance the visibility of the pore system;
projecting the transmitted light onto a surface to form a two-dimensional image of the pore system including representations of the three-dimensional pore connectedness and geometry within said section;
digitizing the projected two-dimensional image to produce a two-dimensional binary template image of the pore system; and
etching said binary template imge into a substrate, whereby a micromodel of said pore system including its three-dimensional aspects is produced.
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Abstract
A method of making a glass micromodel of a pore system found in petroleum reservoir rock wherein a computer-generated two-dimensional binary image of the actual rock pore system taken in thin section is used to produce a template for etched reproduction of the pore system in the glass model plate of the micromodel. The template is produced by digitizing a video image of a view of the rock in thin section, which thin section includes injected dyed material to make the pore system visible, processing the digitized video image through a digital filter so as to effect projection of the three-dimensional aspects of the pore connectedness and geometry viewed through overlaying meineral onto the plane of the imaged view to obtain a two-dimensional template image of the three-dimensional pore system with pores accurately coordinated and pore geometry relationships reliably preserved.
30 Citations
13 Claims
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1. A method of making a micromodel of a rock pore system comprising:
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transmitting light through a thin section of a rock containing a pore system, said thin section having a dyes material disposed in said pore system to enhance the visibility of the pore system; projecting the transmitted light onto a surface to form a two-dimensional image of the pore system including representations of the three-dimensional pore connectedness and geometry within said section; digitizing the projected two-dimensional image to produce a two-dimensional binary template image of the pore system; and etching said binary template imge into a substrate, whereby a micromodel of said pore system including its three-dimensional aspects is produced. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of making a micromodel of a rock pore system comprising:
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injecting dyed material into a porous rock specimen for optically distinguishing the pores and pore connections in said specimen from the surrounding rock; preparing a thin section of the rock specimen containing the dyed material; transmitting light through said thin section; projecting the transmitted light onto a surface to form a two-dimensional image of the pore system including representations of the three-dimensional pore connectedness and geometry within said section; digitizing the projected two-dimensional image to produce a two-dimensional binary template image of the pore system; and etching said binary template image into a substrate, whereby a micro-model of said pore system including its three-dimensional aspects is produced. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification