... flask organogel absorption spectroscopy viscosity atom dihydrate coordination shell upstream oil & gas ammonia room temperature oxygen atom exaf spectra ester reaction mixture dimethyl ester hydraulic fracturing monomethyl ester coordination spectra PETROLEUM SOCIETY CANADIAN...

... sand well logging composition prediction upstream oil & gas mass prediction athabasca bitumen bitumen log analysis water parameter spectra water mass prediction montmorillonite illite relaxation time accuracy amplitude index substance nmr spectra spectrum brine kaolinite...

... than NMR alone. Particle size distribution analysis of the solids after Dean-Stark extraction is also shown to correlate with the fast relaxation components of the water spectra in both oil sands ore and in water saturated sand extracted from the ore. The latter is obtained through a vacuum saturation...

... by monitoring the geometrical mean transverse relaxation time. From the spectra of different coal samples, water can be characterized into free, capillary-bound and subsurface-bound (adsorbed) water. These forms of water have different uptake behavior inside coal. The injection of CO 2 will cause coal de...

.... The cations used are Na + , Ca 2+ and Mg 2+ , which are readily found in formation brines. NMR spectra of clays exposed to brines tend to show distinct characteristics of both amplitude and mean relaxation. Analysis of the NMR spectra correlates the NMR response to clay-chemistry of the individual clays...

... resonance molecular weight cycloparaffin ring gas oil asphaltene reaction complex reservoir residue oil sand information feedstock carbon type spectra carbon type analysis saturate well logging conversion downstream oil & gas fraction log analysis PETROLEUM SOCIETY CANADIAN...

... sand ores from two different depositional environments. Simple T 2 cut-off and signal deconvolution are applied to the NMR spectra to estimate bitumen and water content. Comparison results are given. It has been found previously that in most cases, the signals from clay bound water and bitumen overlap...

... surfaces. NMR characterization of moisture and adsorbed gas in coal and implications for moisture, adsorption isotherm, and gas content measurements are explored. Experiments of moisture free coal, moist coal and coal/water mixtures indicated drastically different spectra. From these spectra free...

..., and core analysis results are collected, showing that in-situ viscosity predictions are possible in the laboratory. NMR spectra measured in the laboratory are compared to NMR logging tool spectra, in order to determine if results obtained using bench top instruments can be extrapolated to logging tool data...

... sand. Low field NMR was used to acquire spectra of the migrating solvent in bitumen or oil sand as a function of time. The experimental results of this work along with data collected previously on similar systems in our laboratory were fit together in a one dimensional Fickian model. The novelty...

... into contact with the bitumen-sand matrix, it gradually diffuses into the liquid-filled pores and dilutes the bitumen. NMR spectra are continuously acquired for the duration of each diffusion test. The changes in solvent and bitumen concentrations are detected through changes in the NMR relaxation...

... or no-flow conditions (20,21) . premixed flame production logging frequency spectra pressure data production control frequency upstream oil & gas scfpm 1 noise spectra flow rate frequency spectrum wavelet spectrum exhaust line combustion chamber combustion noise production...

... is also becoming an attractive tool for petroleum engineers. The method can give an image of a core in two or three dimensions with a very fine resolution and high accuracy. log analysis heavy oil bitumen enhanced recovery experiment solvent content well logging spectra diffusion...

... complex reservoir heavy oil critical relaxation time experiment low field nmr diffusion coefficient bitumen viscosity enhanced recovery oil sand concentration change diffusivity fick spectra spectrum PETROLEUM SOCIETY CANADIAN INSTITUTE OF MINING, METALLURGY & PETROLEUM PAPER 2003-017...

... interpretation of the NMR spectra, bound water T2cutoff values were obtained. Water distribution in different pore sizes during the experiments was also calculated. The initial imbibition rate in different pore sizes was measured. Empirical equations from the literature, which were used to describe the behavior...

..., but this work demonstrates that low field NMR can be a valuable tool even in these reservoirs. The data set for this experimental work consists of a large collection of core samples from many different fields in Canada. NMR spectra interpretations have been compared to other core analysis methods. Definite...

... models have been proposed in the literature 3–5 , which can predict oil viscosities for conventional and heavy oil. amplitude artificial intelligence spectra prediction oil amplitude heavy oil low field nmr viscosity model viscosity amplitude index bitumen viscosity range log analysis...

... Abstract A new interpretive algorithm has been developed for bitumen spectra analysis in tar sands. This algorithm utilizes Low Field NMR method for measurements. With the use of appropriate basic components spectra database the algorithm extracts information on bitumen contents, immovable...

... porosity through the interpretation of NMR spectra. The data set for this experimental work consists of a large collection of core samples from various fields in Alberta and Saskatchewan. The CT data of fully saturated cores were converted to porosity, and this was found to agree well with gas expansion...

..., temperature, velocity, emulsion type, and range of cut. Low field NMR emerges as the only currently proven alternative to discriminate accurately and precisely the amount of oil and water in such streams. METHODOLOGY The NMR spectra of a mixture of heavy oil or bitumen with water consist of two sets of T...