caa a22 4500 469064676 CHVBK 20180323132904.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF00893752 doi (NATIONALLICENCE)springer-10.1007/BF00893752 A dynamic theory of hydrocarbon migration [Elektronische Daten] [Fareed Siddiqui, Larry Lake] This paper presents a new analysis of secondary migration of hydrocarbon that does not require capillary forces for trapping, but instead uses the method of characteristics and wave theory. The waves change speed and either reflect or refract (or partially reflect and partially refract) as they contact with layers of different flow capacities. Reflection of a certain wave from a boundary starts hydrocarbon accumulation below that boundary. The method is easy to use and conforms readily to graphical solution. For the sake of simplicity there is only two-phase flow. The application of this method gives new insights into the physics of migration and entrapment of oil. The method gives realistic times for oil accumulation and points to oil generation rate as the most sensitive variable. Oil and water densities, viscosities, and permeability are also important. We find that at the very small generation rates usually assumed the time required to develop a given column thickness is insensitive to the distance from the source rock. In general, the method also predicts a non-uniform saturation in the oil column caused by an interaction between buoyancy and viscous forces. Being based on the dynamic interactions of viscous and buoyancy forces, our theory is considerably at odds with hydrostatic approaches. We assume no capillary pressure, one-dimensional flow, and no regional groundwater flow, conditions which are not realized in actual migration. The theory should be viewed therefore as an end member of a more general theory; nevertheless, the largely graphical solutions give fundamental insights that are difficult to obtain by other techniques. International Association for Mathematical Geology, 1992 hydrocarbon trapping nationallicence non-linear waves nationallicence quasi-linear P.D.E nationallicence Siddiqui Fareed Department of Petroleum Engineering, University of Texas, 78712, Austin, Texas aut Lake Larry Department of Petroleum Engineering, University of Texas, 78712, Austin, Texas aut Mathematical Geology Kluwer Academic Publishers-Plenum Publishers 24/3(1992-04-01), 305-327 0882-8121 24:3<305 1992 24 11004 https://doi.org/10.1007/BF00893752 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00893752 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Siddiqui Fareed Department of Petroleum Engineering, University of Texas, 78712, Austin, Texas aut NATIONALLICENCE 700 1- Lake Larry Department of Petroleum Engineering, University of Texas, 78712, Austin, Texas aut NATIONALLICENCE 773 0- Mathematical Geology Kluwer Academic Publishers-Plenum Publishers 24/3(1992-04-01), 305-327 0882-8121 24:3<305 1992 24 11004 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer