... assurance Upstream Oil & Gas steam-assisted gravity drainage bitumen sample in-situ combustion activation energy combustion performance SAGD reaction kinetic bitumen enhanced recovery resin experiment fraction asphaltene combustion bitumen combustion tube experiment aleksandrov LTO...

... was evaluated in terms of cumulative oil production, combustion front propagation, and characterization of the produced oil samples. Activation energy and heat of combustion were calculated empirically. Quality of the produced oil samples was determined through viscosity measurements. Saturates, aromatics...

.... The diffusion coefficient, which is calculated from Eq. 3 , is then used to calculate activation energy using Arrhenius equation ( Eq. 4 ), which also demonstrates the temperature dependence of diffusion coefficient. (4) D = D 0 exp ( − E a / R T ) , where, D = diffusion...

... objects for further petroleum exploration in the region. modeling activation energy Yamal peninsula structural geology basin modeling South Kara Basin local structure condensate source rock kinetic model Upstream Oil & Gas phase composition Petroleum Field sediment deposition oil...

.... Isoconversional techniques provide model-free methods for estimating activation energy and naturally deconvolve multi-step reactions. The isoconversional fingerprint is, essentially, the profile of activation energy as a function of temperature (from low to high) of the sample. As such, isoconversional methods...

... recovery Upstream Oil & Gas activation energy co 2 thermal method steam-assisted gravity drainage concentration simulation result Modeling & Simulation frequency factor simulation model reactant acid gas well configuration simulator configuration reaction speed fraction SAGD...

... activation energy E a , Arrhenius constant or pre-exponential factor A) and implementation of combustion tube runs under different conditions, the mechanisms behind the combustion process are elucidated. The results of seven combustion tube runs are presented and discussed in terms of repeatability, effect...

... place ahead of it. Hence, the air injection processes may have an added benefit of recovering in-situ upgraded heavy oils. steam-assisted gravity drainage reaction region surface area enhanced recovery frequency factor activation energy thermal method Upstream Oil & Gas air injection...

... activation energy sandstone activation energy variation relaxation time enhanced recovery relaxivity inverse reservoir carbonate dependence experiment diagram frequency contribution well logging relaxation reservoir sandstone Introduction Nuclear Magnetic Resonance (NMR) well logging...

... the initial basis for all models. Subsequent matching of average performance of seven 7-spot patterns (PRISP) with the 1/12th element of symmetry model indicated that reduced bitumen mobility was required. By adjusting Kv/Kh and the activation energy of the mild thermal cracking a good match with PRISP field...

.... Several pseudo reaction mechanisms are proposed to simulate the experimental results. The reaction rate constants were represented by an Arrehnius type expression, the activation energies and corresponding frequency factors were determined for each reaction mechanism proposed. Introduction Recently...

... concentration electrical conductivity Waxman conductance effective stress conductivity saturation Temperature coefficient coefficient salt solution resistivity activation energy procedure shaly sand equation SOCIETY OF PETROLEUM ENGINEERS OF AlME 6200 North Central Expressway Dallas, Texas...

..., if the temperature is 1200°F. or lower, the calculated upper bound is 64%. When more realistic assumptions are invoked; the computed results indicate no oil recovery. The effects of oil migration velocity and the kinetic parameters were studied. Predicted recoveries were highly sensitive to the activation energy...