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1. CA2667523 - HIGH ACCURACY CONTAMINATION ESTIMATION IN HYDROCARBON SAMPLES USING GC X GC

Office
Canada
Application Number 2667523
Application Date 22.10.2007
Publication Number 2667523
Publication Date 02.05.2008
Grant Number
Grant Date 30.04.2013
Publication Kind C
IPC
G01N 30/46
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
02Column chromatography
26Conditioning of the fluid carrier; Flow patterns
38Flow patterns
46using more than one column
E21B 49/08
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
08Obtaining fluid samples or testing fluids, in boreholes or wells
G01N 33/28
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
26Oils; Viscous liquids; Paints; Inks
28Oils
CPC
G01N 30/463
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography ; or field flow fractionation;
02Column chromatography
26Conditioning of the fluid carrier; Flow patterns
38Flow patterns
46using more than one column
461with serial coupling of separation columns
463for multidimensional chromatography
E21B 49/08
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
08Obtaining fluid samples or testing fluids, in boreholes or wells
G01N 33/2823
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
26Oils; viscous liquids; paints; inks
28Oils ; , i.e. hydrocarbon liquids
2823raw oil, drilling fluid or polyphasic mixtures
G01N 33/2835
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
26Oils; viscous liquids; paints; inks
28Oils ; , i.e. hydrocarbon liquids
2835specific substances contained in the oil or fuel
G01N 2030/025
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography ; or field flow fractionation;
02Column chromatography
022characterised by the kind of separation mechanism
025Gas chromatography
Applicants SCHLUMBERGER CANADA LIMITED
WOODS HOLE OCEANOGRAPHIC INSTITUTION
Inventors REDDY, CHRISTOPHER MICHAEL
MULLINS, OLIVER C.
RAGHURAMAN, BHAVANI
NELSON, ROBERT K.
Priority Data 60/862,879 25.10.2006 US
Title
(EN) HIGH ACCURACY CONTAMINATION ESTIMATION IN HYDROCARBON SAMPLES USING GC X GC
(FR) ESTIMATION DE GRANDE PRECISION D'UNE CONTAMINATION D'ECHANTILLONS D'HYDROCARBURES AU MOYEN DE LA TECHNIQUE GC X GC
Abstract
(EN)
A method of estimating contamination of oil based mud filtrate in a hydrocarbon sample. The method comprising the steps of obtaining a hydrocarbon sample contaminated with oil based mud filtrate, then analyzing the contaminated hydrocarbon sample using two-dimensional gas chromatography (GC x GC). The method further comprises identifying one or more unique component or tracer in the oil based mud filtrate in the contaminated hydrocarbon sample. Finally, the method comprises of summing the peak volumes of the one or more unique component or tracer, relative to the peak volumes of a clean hydrocarbon sample.