A METHOD FOR PERFORMING RAMAN SPECTROSCOPY WITHIN A LOGGING WHILE DRILLING INSTRUMENT

摘要

A downhole tool has a tool body with an outer diameter equal to a borehole diameter, at least one cavity formed in and opening to an outer surface defining the outer diameter of the tool body, a light source, a filter, and a light detector mounted in the at least one cavity, and a window disposed at the opening of the at least one cavity, wherein the window encloses the cavity.