油藏物理学一天然气的高压物桂 relative density:Y=Pg/Pa The relative density is the density of nature gas over the density of dry air in standard conditions(293K and 0.101MPa). We can approximatively express the equation. y≈M/29 y∈[0.50.7]
油藏物理学——天然气的高压物性 relative density：γ =ρg / ρa The relative density is the density of nature gas over the density of dry air in standard conditions(293K and 0.101MPa). M / 29 [0.5～0.7] We can approximatively express the equation
油藏物理学一天然气的高压物桂 state equation of nature gas fP、V、T)=0 state equation of fluid PV=nRT for ideal gas/perfect gas PV-ZnRT for real gas
油藏物理学——天然气的高压物性 state equation of nature gas f(P、V、T)=0 state equation of fluid PV=nRT for ideal gas /perfect gas PV=ZnRT for real gas
油藏物理学一天然气的高压物桂 Where Z-deviation factor Physical meaning---deviation factor is the volume of real gas over the volume of ideal gas in real pressure and temperature. This factor accounts for the difference between the actual and ideal gas volumes
油藏物理学——天然气的高压物性 Where Z — deviation factor Physical meaning---deviation factor is the volume of real gas over the volume of ideal gas in real pressure and temperature. This factor accounts for the difference between the actual and ideal gas volumes
油藏物理学一天然气的高压物桂 Z=( Z<1,Va<Vi,Real gas is easily compressed than the ideal gas. Z=1,V=V,Real gas is similar to the ideal gas Z>1,VV,real gas is difficulty compressed than ideal gas
油藏物理学——天然气的高压物性 p T i a V V Z . ( ) Z<1，Va<Vi， Real gas is easily compressed than the ideal gas. Z=1，Va=Vi， Real gas is similar to the ideal gas. Z>1，Va>Vi，real gas is difficulty compressed than ideal gas
Z depends on gas property,pressure and temperature,and get it by Lab Z of nature gas can be found by principle of corresponding state
Z depends on gas property, pressure and temperature, and get it by Lab. Z of nature gas can be found by principle of corresponding state