东北晚中生代断陷盆地J_3—K_1储层孔隙组合特征及孔隙结构类型  

J_3-K_1 Pore Combination Characteristics and Pore Structure Types of the Reservoirs of the Down-Faulted Basins of Late Mesozoic, Northeastern China

作　　者：王海云[1] 李捷[1] 

机构地区：[1]大庆石油学院勘探系,安达151400

出　　处：《世界地质》1998年第3期28-31,共4页World Geology

摘　　要：论述了东北晚中生代断陷盆地J3－K1储层的孔隙组合特征及砂岩储层的孔隙结构类型。砂岩储层的孔隙组合为5种类型：正常粒间孔及缩小粒间扎组合；正常粒间扎及粒间扩大溶孔组合；粒间扩大溶孔及铸模孔组合；粒内溶孔及胶结物内溶孔组合；微孔和裂缝与少量原生粒间孔及残余缩小溶孔组合。特殊储层的孔隙组合因借层类型的不同而异。砾岩传层以砾间孔隙＋砾间填隙物孔隙为主。安山岩储层为气孔＋裂缝或气孔＋裂缝＋砾（粒）间空隙。古风化壳储层为溶孔＋溶洞＋裂缝。砂岩储层的孔隙结构划分为高孔高渗粗喉型，中扎中渗中喉型，中孔低渗细喉型和低孔低渗细喉型，中扎特低渗微喉型，低孔特低渗微喉型和特低孔特低渗微喉型。In this paper, both pore combination characteristics and pore structuretyPes of the J3 -K1 sandstone reservoirs are discussed. The combinations of sandstonereservors are divided into five types: (1) the combinations of normal interpartical poreand contracted interpartical .pore; (2) the combinations of normal interpartical pore andinterpartical enlarged soluble pore; (3) the combinations of interpartical enlarged solublepore and moldic poreF (4) the combinations of soluble Pores in both the particles and thegelatinous rnaterials; (5) the combinations of Annor pore, fracture, a few of primaryinterpaftical pore and residual contracted soluble pore. The combination of special reservoirpores depends on the type of reservoir. Conglomerate reservoir is mainly the pores betweenthe conglomerate particles and the pores of the filling for the conglomerate particles.Andesite reservoir is gasous pore and fractrue or gasous pore,fracture and pores betweenthe conglomerate particles. The ancient weathered shell reservoir is soluble proe,solubleopening and fracture. The pore texture of sandstone reservoir is divided into:the type ofhigh porosity, high permeability coarse throat; the type of middle porosity, middlepermeability moderate throat;the type of middle porosity,low permeability fine throat andlow porosity, low permeability fine throat; the type of middle porosity, particular lowpermeability minor throat; the type of low porosity, particular low permeability minorthroat and the type of particular low porosity,particular low permeability minor throat.

关 键 词：储层 孔隙组合 孔隙结构 断陷盆地 油藏 

分 类 号：P618.130.2[天文地球—矿床学]