05166747 is referenced by 80 patents and cites 14 patents.

A borehole apparatus for analyzing the composition of a formation fluid includes a chamber that contains the fluid, and a light source that directs light through the fluid in the chamber. The optical path of the light is modified such that an output fiber optic bundle receives indirect light through the fluid. One embodiment comprises a diffuser in the optical path, which forward scatters the light to the output fiber optic bundle. Another embodiment comprises the misalignment of an input fiber optic bundle relative to the output fiber optic bundle. Collimators can be subsituted for the fiber optic bundles.

Title
Apparatus and method for analyzing the composition of formation fluids
Application Number
7/532288
Publication Number
5166747
Application Date
June 1, 1990
Publication Date
November 24, 1992
Inventor
Jeffrey A Tarvin
Great Shelford
GB
Robert J Schroeder
Newtown
CT, US
Agent
Leonard W Pojunas
Assignee
Schlumberger Technology Corporation
NY, US
IPC
G01V 5/00
G01J 3/28
View Original Source