Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Marc Schneider

Farshid Mostowfi

Abdel Kharrat

Philip Homewood

Joseph Samuel Baddeley

Oliver Clinton Mullins

Andrew John Carnegie

Vincent Joseph Sieben

A Ballard Andrews

Evie Freitas

ChenGang Xian

Jamil Al-Naser

Jesus Alberto Canas Triana

Abdel M Kharrat

Philip James Homewood

A system for measuring asphaltene content of crude oil, includes a microfluidic chip, the microfluidic chip having a crude oil sample inlet port, a solvent port, a mixer and reactor section in fluid communication with the crude oil sample inlet port and the solvent port, and a filter in fluid communication with the mixer and reactor section, the filter having an inlet side and an outlet side, a waste port in fluid communication with the inlet side of the filter, and a product port in fluid communication with the outlet side of the filter. The system further includes an optical cell in fluid communication with the product port.

Microfluidic chip for measuring asphaltene content of crude oil

Apparatus and system for measuring asphaltene content of crude oil

A method for determining an asphaltene yield curve and an asphaltene flocculation point includes obtaining a crude oil sample and measuring an optical spectrum of the crude oil sample. A titrant is then mixed with the crude oil sample at different concentrations. At each concentration, precipitated asphaltenes are filtered from the mixture and the optical spectrum of the filtrate is measured. The optical spectrum of the filtrate is then subtracted from the optical spectrum of the crude oil sample. A fractional asphaltene precipitation is determined for each concentration of titrant. A flocculation point is determined corresponding to an inflection point in the fractional asphaltene precipitation for each concentration of titrant.

Method and apparatus for determining asphaltene yield and flocculation point of crude oil

This relates to methods and apparatus for analyzing samples by fluorescence spectroscopy. In one embodiment, the methods and apparatus use a fluorescence detection unit (FDU) of a composition fluid analyzer (CFA&#x2122;) module to detect variations in fluid properties (gradients) within an oil bearing column. Some embodiments enable efficient downhole fluid analysis in heavy oils where water/oil emulsions are present (water in dispersed phase and oil in the continuous phase). The principles described herein may also be applied when there are fine particles in the oil such as from unconsolidated sands.

Methods and apparatus for analyzing fluid properties of emulsions using fluorescence spectroscopy

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Walheim, Germany

Marc Schneider