Data from investigation of several different crude oils are included. The conclusion is that any such prediction technique must take oil composition into consideration, and that this composition must be related to CO/sub 2/ density and minimum miscibility pressure in practices. 展开 ...
(26). Therefore, to calculate the ZCPA in each phase, the density of that phase must first be estimated. For the vapor phase, this value can be regarded as equal to the ideal gas density (P/RT), while for the liquid phase, it can be taken as equal to bmix. XAi is then ...
awe‘ve run out of petrol.we can’t drive our car any more 我们`ve被用尽的petrol.we不可能再驾驶我们的汽车 [translate] ayesterday night,I have a dream ! I dream that I became a bird instead of one people...can't I... become a bird,heh ...the same time ,I also dream that I...
Many slim tube analyses, lacking high density data points, systematically underestimate the MMP, when the near miscible region is not accounted for. They are based on 147 published data sets that include: slim tube experimental determination of MMP; interfacial tension (IFT) between oil and CO2;...
The average absolute error for predicting the vapor pressure and saturated liquid density of hydrocarbons, non-hydrocarbons, polar compounds and associating fluids were found to be 1.7% and 2.6%, respectively. Then, this modified equation of state is used to calculate the minimum miscibility pressure...
Vk is the propagation velocity of crack in rock mass; ρ1 is the density of stemming; CP is the P wave velocity in rock mass; CR is the Rayleigh wave velocity; P0 is the initial pressure of explosive gas; n1 is the comprehensive influence coefficient, it ranges is 1.0 ~ 1.4, ...
(26). Therefore, to calculate theZCPAin each phase, the density of that phase must first be estimated. For the vapor phase, this value can be regarded as equal to the ideal gas density (P/RT), while for the liquid phase, it can be taken as equal tobmix.XAiis then calculated using...
[38] is employed while estimating solution density in the neighboring region of a particular solution. Each non-dominated solution p of the front N k are assigned with a crowding distance value ( p d i s t a n c e ) if the solutions of N k are not entirely included in P t + 1...