Patent ID: 9651710
Date: 2017-05-16
CPC Classifications: E21B,G01N,G01V

Claim:
1. A downhole fluid properties analysis device connectable to a downhole sampling flow line, the downhole sampling flow line having an internal diameter between 2 to 15 mm adapted to let flow the fluid to be analyzed, the fluid being a hydrocarbon multiphase fluid mixture from a hydrocarbon subsurface reservoir, the downhole fluid properties analysis device comprising: an analysis pipe portion; a first optical probe and a second optical probe, the first optical probe being a light emitting probe adapted to be coupled to a light source and arranged to transmit a light into the fluid, and the second optical probe being a light receiving probe adapted to be connected to a spectrometer and arranged to produce a signal resulting from an interaction of the fluid with said light indicative of the downhole fluid properties; wherein: each of said optical probes comprises an elongated body mounted through the wall of the analysis pipe portion in a sealed manner and has a tip, the tip being needle shaped and having an external diameter less than 1 mm; and the first tip of the first optical probe and the second tip of the second optical probe project into a flow section of the analysis pipe portion such that the first tip faces the second tip at a defined distance ranging from 10 μm to 99 mm.