8 results match your criteria: "DBR Technology Center[Affiliation]"
Langmuir
May 2018
Schlumberger DBR Technology Center, 9450-17th Avenue , Edmonton AB T6N 1M9 , Canada.
Interfacial tension (IFT) is one of the major parameters which govern the fluid flow in oil production and recovery. This paper investigates the interfacial activity of different natural surfactants found in crude oil. The main objective was to better understand the competition between carboxylic acids and asphaltenes on toluene/water interfaces.
View Article and Find Full Text PDFLangmuir
May 2016
Schlumberger DBR Technology Center, 9450 17 Avenue, T6N 1M9 Edmonton, Canada.
In materials with tiny, nanometer-scale pores, liquid condensation is shifted from the bulk saturation pressure observed at larger scales. This effect is called capillary condensation and can block pores, which has major consequences in hydrocarbon production, as well as in fuel cells, catalysis, and powder adhesion. In this study, high pressure nanofluidic condensation studies are performed using propane and carbon dioxide in a colloidal crystal packed bed.
View Article and Find Full Text PDFTalanta
April 2016
Schlumberger DBR Technology Center, 9450 17th Avenue, Edmonton, AB, Canada T6N 1M9. Electronic address:
Using the carminic acid assay, we determined the concentration of boron in oilfield waters. We investigated the effect of high concentrations of salts and dissolved metals on the assay performance. The influence of temperature, development time, reagent concentration, and water volume was studied.
View Article and Find Full Text PDFLab Chip
October 2015
Schlumberger Canada Limited, DBR Technology Center, 9450 17th Avenue, Edmonton, Alberta T6N 1M9, Canada.
We describe a microfluidic apparatus and method for performing asphaltene yield measurements on crude oil samples. Optical spectroscopy measurements are combined with a microfluidic fluid handling platform to create an automated microfluidic apparatus to measure the asphaltene yield. The microfluidic measurements show good agreement with conventional wet chemistry measurements as well as available models.
View Article and Find Full Text PDFRev Sci Instrum
February 2014
Schlumberger DBR Technology Center, 9450-17 Avenue NW, Edmonton, Alberta, Canada.
We discuss an innovative new high-performance apparatus for performing low-field Nuclear Magnetic Resonance (NMR) relaxation times and diffusion measurements on fluids at very high pressures and high temperatures. The apparatus sensor design and electronics specifications allow for dual deployment either in a fluid sampling well logging tool or in a laboratory. The sensor and electronics were designed to function in both environments.
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July 2013
Schlumberger DBR Technology Center, 9450 17th Ave., Edmonton, Alberta, T6N 1M9, Canada.
A method for measuring the equilibrium GOR (gas-oil ratio) of reservoir fluids using microfluidic technology is developed. Live crude oils (crude oil with dissolved gas) are injected into a long serpentine microchannel at reservoir pressure. The fluid forms a segmented flow as it travels through the channel.
View Article and Find Full Text PDFAnal Chem
May 2013
Schlumberger DBR Technology Center, Edmonton, Alberta, Canada.
We present a microfluidic apparatus and method for the measurement of asphaltene content in crude-oil samples. The measurement is based on an optical absorption technique, where it was established that asphaltene coloration correlated linearly with asphaltene weight content. The initial absorbance of the oil is measured, and asphaltenes are removed from the oil by the addition of n-alkane, leading to flocculation and subsequent filtration.
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November 2012
Schlumberger DBR Technology Center, Edmonton, AB, T6N 1M9, Canada.
A novel microfluidic device designed for analyzing phase diagrams of gas-liquid systems (PVT or pressure-volume-temperature measurements) is described. The method mimics the phase transition of a reservoir fluid as it travels through the wellbore from the formation to the surface. The device consists of a long serpentine microchannel etched in a silicon substrate.
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