Measured reflectance suppressed by thin-film interference of crude oil smeared on glass - as on vitrinite in coal or petroliferous rocks
Society for Organic Petrology Newsletter
By: Neely Bostick
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Abstract
The tool of measuring "vitrinite reflectance" under a microscope has great value in petroleum exploration and coal utilization, and the reflectance is a simple number, such as 1.4% Ro, with some slight variations depending on technique. Sample collection, preparation and measurement are simple and many sedimentary rocks yield vitrinite. However, the reported number can lead one astray if its origin and quality are not fully understood. I analyze here just one factor, "smear" of crude oil on the polished surface (from the sample), which may reduce reflectance because of thin-film interference. Some other causes of error are listed in an addendum to this note.
Suggested Citation
Bostick, N., 2011, Measured reflectance suppressed by thin-film interference of crude oil smeared on glass - as on vitrinite in coal or petroliferous rocks: Society for Organic Petrology Newsletter, v. 28, no. 2, p. 12-15.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Measured reflectance suppressed by thin-film interference of crude oil smeared on glass - as on vitrinite in coal or petroliferous rocks |
| Series title | Society for Organic Petrology Newsletter |
| Volume | 28 |
| Issue | 2 |
| Year Published | 2011 |
| Language | English |
| Publisher | The Society for Organic Petrology |
| Publisher location | VA |
| Contributing office(s) | Central Energy Resources Science Center |
| Description | 4 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Society for Organic Petrology Newsletter |
| First page | 12 |
| Last page | 15 |