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）Physics property of reservoir rock 1.3 pore structure and porosity of reservoir rock 储层岩石的孔隙结构及孔隙度

1.3 pore structure and porosity of reservoir rock Xuangi zhang Petroleum engineering college Xi 'an shiyou university

1.3 pore structure and porosity of reservoir rock Xuanqi zhang Petroleum engineering college Xi ‘an shiyou university

油藏物理学一储层岩石的孔隙结构及孔隙度 )outline 1.put forward problem 2.Reservoir pore structure 3.Porosity(definition and classification of porosity) 4.Double porosity (primary porosity secondary porosity and total porosity)

4．Double porosity (primary porosity , secondary porosity and total porosity) 1．put forward problem 3．Porosity(definition and classification of porosity) 2． Reservoir pore structure outline 油藏物理学—储层岩石的孔隙结构及孔隙度

5. Factors affecting porosity Internal and external factor 6. Compressibility of reservoir rock definition and Comprehensive compression coefficient)

5． Factors affecting porosity ( Internal and external factor ） 6． Compressibility of reservoir rock （definition and Comprehensive compression coefficient）

Put forward problem: Sand grains and particles of carbonate materials that make up sandstone and limestone reservoirs usually never fit together perfectly due to the high degree of irregularity in shape.The void space created throughout the beds between grains,called pore space or interstice,is occupied by fluids (liquids and/or gases)

Put forward problem: Sand grains and particles of carbonate materials that make up sandstone and limestone reservoirs usually never fit together perfectly due to the high degree of irregularity in shape. The void space created throughout the beds between grains, called pore space or interstice, is occupied by fluids (liquids and/or gases)

油藏物理学一储层岩石的孔隙结构及孔隙度 Therefore,pore size,shape,development and communication will directly affect the capacity of oil and gas of reservoir through porous medium and production capacity of oil and gas.So the porosity of reservoir is very important parameter

Therefore, pore size, shape, development and communication will directly affect the capacity of oil and gas of reservoir through porous medium and production capacity of oil and gas. So the porosity of reservoir is very important parameter. 油藏物理学—储层岩石的孔隙结构及孔隙度

油藏物理学一储层岩石的孔隙结构及孔隙度 1.Pore structure and type of reservoir Pore structure contain; porous reservoir pore size pore communication pore morphology pore shape pore geometry pore type pore roughness

1. Pore structure and type of reservoir 油藏物理学—储层岩石的孔隙结构及孔隙度 porous reservoir pore size pore communication pore morphology pore shape pore geometry pore type pore roughness Pore structure contain:

油藏物理学一储层岩石的孔隙结构及孔隙度 1.1 classification of pore 1)Meinzer法

1.1 classification of pore 1）Meinzer法 油藏物理学—储层岩石的孔隙结构及孔隙度

油藏物理学一储层岩石的孔隙结构及孔隙度 2)classification by origin/genesis a.intergranular pore b.micropore in complex rock c.intercrystalline secondary pore in intercrystalline

2） classification by origin /genesis a. intergranular pore b. micropore in complex rock c. intercrystalline secondary pore in intercrystalline 油藏物理学—储层岩石的孔隙结构及孔隙度

d.lamination or bedding/stritification fissure/fracture e.fissure/fracture pore f.solutional void/solutional pore

d. lamination or bedding/stritification fissure/fracture e. fissure/fracture pore f. solutional void/solutional pore

油藏物理学一储层岩石的孔隙结构及孔隙度 Genesis and Characteristics of pore type pore Type genesis Primary pore Intergranular pore sedimentation lamination and sedimentation bedding seam Dissolution pores corrasion intercrystall Pressure solution Secondary secondary pore pore Fracture pore Ground stress Particle rupture hole fracture Mixing pore micro-pore with Complex genesis complex-Matrix

pore Type genesis Primary pore Intergranular pore sedimentation lamination and bedding seam sedimentation Secondary pore Dissolution pores corrasion intercrystall secondary pore Pressure solution Fracture pore Ground stress Particle rupture hole fracture Mixing pore micro-pore with complex-Matrix Complex genesis Genesis and Characteristics of pore type 油藏物理学—储层岩石的孔隙结构及孔隙度