油层物理学：Section4 Properties of Natural Gas Section4PropertiesofNaturalGas Naturalgasisacombustiblegasproducedfromsubsurfaceformation.Thephysicalpropertiesofnaturalgas,suchascomposition(组成),specificgravity(相对密度),formationvolumefactor(气体的体积系数),compressibilityfactor(压缩系数),viscosity(粘度),etc,are...
Equation 1.24: Gas Z-factor or compressibility factor calculation (1.24)Z=ActualorrealvolumeofthegasatspecifiedpressureandtemperatureIdealvolumeofthegasatspecifiedfpressureandtemperatureThe real gas law demonstrates the relationship between the pressure (P), volume (V), and temperature (T) of a real ...
Bg is the gas formation volume factor, fraction; Bw is the water formation volume factor, fraction;φ is the coal porosity at a given pressure, fraction; P is the fluid pressure, MPa; t is the production time, h; μg is the gas viscosity, mpa·s; μw is the water viscosity, mpa·...
Datarequirements数据要求 Calculationtechniques计算技术 limitations边界 Reservoirsinclude:Volumetricdry-gasreservoirs体积干气气藏Volumetricdry-gasreservoirswithwaterinflux随着水侵体积干气气藏Volumetricwet-gasandgas-condensatereservoirs体积湿天然气和凝析气藏 3.1Introduction Section2:Material-balanceMethods Derive-equation...
(42), the volume fractions and velocities of the individual sub-solid phases have to be known. Considering the momentum and mass conservation of the fluid and solid phases, a still under-determined system of equation is formed, which requires additional information (input) to find a solution ...
The interaction potential (or binding energy) of the dynamic cluster formation and the microsolvation states of ions could be probed by DMS separation28,51,52. To computationally model this microsolvation process in the gas phase, we performed an analysis of the interaction potential between the ...
Damping factor The equation governing the spatial patterns of gas concentration in a one-dimensional system with a curvilinear coordinate x aligned with the main flow direction, under the assumptions of stationarity (constant flow rate Q and time-invariant gas concentrations), no dispersion, no latera...
14. Enthalpies of Formation生成焓 15. Reaction Rates反应速率 16. Reaction Order反应级数 17. Rate Constants速率常数 18. Activation Energy活化能 19. The Arrhenius Equation阿累尼乌斯方程 20. Reaction Mechanisms反应机理 21. Homogeneous Catalysis均相催化剂 22. Heterogeneous Catalysis非均相催化剂 23. Enzymes...
oil formation volume factor, bbl/STB Bg gas formation volume factor, bbl/SCF CA shape constant or factor, dimensionless C1, C2, C3, C4, D Wiggins׳s constants, dimensionless d, e Del Castillo and Yanil׳s constants, dimensionless h formation thickness, ft J productivity index of the rese...
In most cases, the rate of permeability of a film is calculated by the following equation. P=v×δA×t×(P1−P0) Where, P is the permeability for a testing gas through a given material, v is the volume of testing gas which is penetrating through the material, δ is the thickness ...