... baffle mullin hydrocarbon asphaltene gradient trajectory DFA Description In situ downhole fluid analysis (DFA) with formation testers, either while drilling or with wireline logging, is the earliest available direct means to characterize formation fluids with the highest possible spatial...

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... shale mullin lower sand history matching crude oil asphaltene connectivity reservoir fluid geologic time reservoir Introduction Figure 5 provides excellent data for evaluation of connectivity.[ 28 ] The upper sand and thelower sand each have oils with equilibrated asphaltenes thus...

... column mullin fluid gradient connectivity boycott effect equilibration lateral gradient solution gas convection asphaltene content density inversion diffusion gradient Introduction Reservoir Fluid Geodynamics (RFG) In order to understand current manifestations of a reservoir...

...Equilibrium of Light Crude Oil; Asphaltene Molecules Abstract Asphaltenes can be dispersed in crude oils in 3 different forms; molecules, nanoaggregates (of molecules) or clusters (of nanoaggregates); these forms are codified in the Yen-Mullins model and relate to the extent of solvency...

... of Cubic EoS for connectivity analysis in contrast to the good capability of the asphaltene gradients and FHZ EoS for this purpose. Moreover, the FHZ EoS analysis indicates that the asphaltenes are dispersed as a true molecular solution for this light oil in accord with the Yen-Mullins model of asphaltenes...

... of the geological events, such as late gas charging, biodegradation, water washing, spill-fill charging, multiple charge etc. [ 2 Mullins SPE 2017 ], [ 3 Chen SPE 2017 ], [ 4 Chen Fuel 2018 ], [ 5 Forsythe SPE 2017 ]. Fault block migration [ 6 Dong SPWLA 2014 ] is another process impacting reservoir structural...

... permeability Upstream Oil & Gas Pfeiffer sand lobe Zuo baffle Modeling & Simulation shale connectivity lower sand gradient Reservoir Characterization upper sand Mullin isopach image borehole image Introduction Reservoir connectivity is always a major concern and is particularly...

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... in the Flory-Huggins-Zuo Equation of State for asphaltene gradients with its reliance on the Yen-Mullins model of asphaltenes. Multiple charges of incompatible fluids lead to asphaltene deposition. The extent of slow, diffusive destabilization from density stacking charge fluids versus rapid destabilization...

... methods can accurately determine gradients for asphaltenes. Analysis of asphaltene gradients is an excellent method to evaluate reservoir connectivity [ Mullins, 2008 , Zuo, 2013 ] and reservoir baffling [ Achourov et al, 2015 ; Dumont et al, 2016a ], as long as the equilibrated state of asphaltenes can...

... by laboratory research and field studies (Mullins 2010 , 2011 ; Sabbah et al. 2011 ; Mullins et al. 2012a b , 2013a b c , 2014 ; Seifert et al. 2012a b ; Pomerantz et al. 2013a b ; Zuo et al. 2013a b ; Wu et al. 2014a b ). A key concept in this research is that the asphaltene aggregate...

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... nanocolloidal asphaltenes particles in crude oils. After decades of work on fundamental properties of asphaltenes [ 2 ] , this situation has been resolved [ 3 ] . The Yen-Mullins model (named by Professor Dick Zare, Stanford U.) specifies the dominant molecular and colloidal structures of asphaltenes...

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... particle size in crude oils. The Yen-Mullins model, has been proposed consisting of the dominant forms of asphaltenes in crude oils; molecules, nanoaggregates and clusters ( Mullins, 2010 ). This asphaltene nanoscience enables development of the first predictive equation of state for asphaltene gradients...

..., the new workflow and other information with DFA Fluid Profiling to address reservoir connectivity. flow assurance gradient asphaltene inhibition reservoir connectivity scale remediation wax inhibition mullin upstream oil & gas hydrate inhibition asphaltene oilfield chemistry...

... measurements allows connectivity to be assessed with greater confidence than otherwise attainable during exploration and appraisal. mullin oilfield chemistry crude oil gradient hydrate remediation asphaltene inhibition connectivity reservoir characterization upstream oil & gas wax...