西安石油大学：《油藏物理（油层物理学）Petro-physics》精品课程教学资源（英文课件）Fluid 2.4 physics property of reservoir oil 地层原油的高压物性

physics property of reservoir oil at high pressure Xuanqi zhang Petroleum engineering college

physics property of reservoir oil at high pressure Xuanqi zhang Petroleum engineering college

油藏物理学一地层原油的高压物桂 the physical property of reservoir oil is quite different from crude oil at ground because it dissolves a lot of nature gas,such as viscosity, density and compressibility. with reservoir development,the pressure and temperature constantly fall.So dissolved gas in oil constantly release from oil,and the property of the oil formation is also changing

油藏物理学——地层原油的高压物性 the physical property of reservoir oil is quite different from crude oil at ground because it dissolves a lot of nature gas, such as viscosity, density and compressibility. with reservoir development, the pressure and temperature constantly fall. So dissolved gas in oil constantly release from oil, and the property of the oil formation is also changing

Crude oil is a mixture which contain alkanes, cycloalkanes,aromatic hydrocarbons and various compounds of oxygen sulfur and nitrogen

Crude oil is a mixture which contain alkanes, cycloalkanes, aromatic hydrocarbons and various compounds of oxygen , sulfur and nitrogen

油藏物理李一地层原油的高压物桂 The classification of Ground crude oil 1.by gum-asphalt content small gum-asphalt oil:gum-asphalt content25%

油藏物理学——地层原油的高压物性 1. by gum-asphalt content small gum-asphalt oil： gum-asphalt content ＜8% gum-asphalt oil： gum-asphalt content is 8~25%； more gum-asphalt oil： gum-asphalt content>25%。 The classification of Ground crude oil

油藏物理学一地层原油的高压物桂 2.By paraffin/wax content O small wax oil:wax content2%

油藏物理学——地层原油的高压物性 2. By paraffin/wax content small wax oil: wax content<1% wax oil：wax content is 1~2% more wax oil: wax content＞2%

油藏物理李一地层原油的高压物桂 3、by sulphur content o small sulphur oil:S2%

油藏物理学——地层原油的高压物性 3﹑by sulphur content small sulphur oil：S<0.5% sulphur oil：S:0.5%~2% more sulphur: S＞2%

油藏物理学一地层原油的高压物桂 4、by key composition Condensate oil density is 0.93 gcm3(20℃)

油藏物理学——地层原油的高压物性 4﹑by key composition Condensate ：oil density is ＜0.82g/cm3 (20℃). Paraffin base crude oil density is 0.82~0.89 g/cm3(20℃), Crude Oil : oil density is 0.89~0.93 g/cm3(20℃). cycloalkane base oil： oil density is ＞0.93 g/cm3(20℃)

油藏物理学一地层原油的高压物桂 5,by relative density of gas free oil: light oil:y34; medium density oil:y is 0.855~0.934, API gravity is 34~20; high oil:y>0.934,API gravity<20;

油藏物理学——地层原油的高压物性 5﹑by relative density of gas free oil： light oil：γ＜0.855，API gravity＞34； medium density oil： γ is 0.855～0.934， API gravity is 34～20； high oil： γ ＞ 0.934，API gravity＜ 20；

油藏物理学一地层原油的高压物桂 classification on formation oil low viscosity oil:oil viscosity50mPa.s

油藏物理学——地层原油的高压物性 classification on formation oil low viscosity oil: oil viscosity＜5mPa.s； medium viscosity oil: oil viscosity is 5~20mPa.s； high viscosity oil: oil viscosity is 20~50mPa.s； heavy oil：oil viscosity ＞50mPa.s

油藏物理学一地层原油的高压物桂 The relationship between oil density and API gravity(America Petroleum Institute) Po Oil density Po Y= Oil relative density Pw 141.5 API -131.5 Y

油藏物理学——地层原油的高压物性 The relationship between oil density and API gravity(America Petroleum Institute) o o o V m   Oil relative density Oil density w o     131.5 141.5 － o API  