CAJ | 학술논문

以评价五里湾油藏长6油组储层的宏观非均质性，分析其对剩余油的控制作用为目的，综合运用测井及地质资料开展储层层间、层内及平面非均质性研究。结果表明：层内韵律性以正韵律和反韵律为主，夹层分布稳定；层间隔层主要为2m左右的泥岩层或泥质粉砂岩层，层间砂体表现为4种垂向连通方式；平面孔、渗参数变化明显受控于沉积微相和砂体的展布，水下分流河道物性条件好于河口坝微相。储层垂向上砂体的韵律性与渗透率非均质性对流体的渗流能力的影响，控制了层内剩余油的分布；平面砂体的连续性以及不同成因砂体的物性变化是影响储层剩余油平面分布的重要因素；层间隔层以及层间渗透率非均质性造成了合注合采过程中的层间矛盾，控制了剩余油垂向分布。
이평개오리만유장장6유조저층적굉관비균질성，분석기대잉여유적공제작용위목적，종합운용측정급지질자료개전저층층간、층내급평면비균질성연구。결과표명：층내운률성이정운률화반운률위주，협층분포은정；층간격층주요위2m좌우적니암층혹니질분사암층，층간사체표현위4충수향련통방식；평면공、삼삼수변화명현수공우침적미상화사체적전포，수하분류하도물성조건호우하구패미상。저층수향상사체적운률성여삼투솔비균질성대류체적삼류능력적영향，공제료층내잉여유적분포；평면사체적련속성이급불동성인사체적물성변화시영향저층잉여유평면분포적중요인소；층간격층이급층간삼투솔비균질성조성료합주합채과정중적층간모순，공제료잉여유수향분포。
For evaluating and analyzing the macroscopic anisotropy and its controlling on the remaining oil distribution, the well logging data and geological information were comprehensively applied in this research of the intraformational,inter-laminational and plane anisotropy.The results showed that the intraformational rhythm is mainly positive and reverse.The interlaminational interlayer is mainly an about 2 meter thickness of mudstone or siltstone.The interlaminational sand bodies have 4 kinds of connected manners in vertical direction.The changes in plane porosity and permeability are obviously con-trolled by the microfacies and distribution of sand bodies.The physical properties of the underwater distributary channel are better than the estuary dam.The intraformational remaining oil distribution is influenced by the fluid seepage ability con-trolled by the vertical sandbodies rhythm and the permeability anisotropy.The plane sand body continuity and the physical property change of the sand bodies with different formation cause are main controlling factors of the plane distribution of re-maining oil.The interlaminational interlayer and the interlaminational permeability anisotropy,which control the remaining oil distribution,cause interlayer contradictions in the process of commingled production.