CAJ | 학술논문

对于非均质性较强的陆相油田储层，长期注水开发易形成水流优势通道，造成无效水循环，波及系数降低，严重影响开发效果。以扶余X17-19区块为例，依据岩心和镜下薄片观察结果从地质角度将区内水流优势通道分为渗流型、管流型、缝面型优势通道3类。三者在空间上交互沟通形成多种组合模式的复杂窜流网络系统，以“水井-天然裂缝-高渗带-压裂缝-油井”模式为主。基于岩心、测井及生产动态资料分析了水流优势通道的剖面和平面分布，并以沉积微相与高渗区相结合验证了识别结果的合理性，认为Ⅱ砂组6小层的X17-019.4井与X17-19.1井方向存在水流优势通道。依据水流优势通道类型和强度，采取深部调驱或井网调整措施打破目前的水流网络达到治理的目的。
대우비균질성교강적륙상유전저층，장기주수개발역형성수류우세통도，조성무효수순배，파급계수강저，엄중영향개발효과。이부여X17-19구괴위례，의거암심화경하박편관찰결과종지질각도장구내수류우세통도분위삼류형、관류형、봉면형우세통도3류。삼자재공간상교호구통형성다충조합모식적복잡찬류망락계통，이“수정-천연렬봉-고삼대-압렬봉-유정”모식위주。기우암심、측정급생산동태자료분석료수류우세통도적부면화평면분포，병이침적미상여고삼구상결합험증료식별결과적합이성，인위Ⅱ사조6소층적X17-019.4정여X17-19.1정방향존재수류우세통도。의거수류우세통도류형화강도，채취심부조구혹정망조정조시타파목전적수류망락체도치리적목적。
For reservoirs in lan d oilifeld with strong heterogeneity, long-term waterlfoodingcan easily create preferential water lfow passage, causing ineffective water circulation, reducing the sweep coefifcient, and severely impacting the development effective-ness. Take Fuyu X17-19 Block as an example, based on core and thin slice observation under microscope, the preferential water lfow passage within this block is divided into three categories:seepage, pipe lfow and seam lfow. The three lfow passages connect with each other in space and form a complex channeling network system with multiple combination patterns, dominated by 'water well-natural fracture-highly seeping zone-fractures-oil well'. The proifle, the plane distribution and the dominant factors of the preferential water lfow passage were analyzed based on the data of core, logging and production performance, and the reasonableness of the results were identiifed based on sedimentary micro-facies and high permeability area, and it was thought that there existed preferential water lfow passage in direction of wells X17-019.4 and X17-19.1 in six small layers of No.Ⅱ. sand group. The purpose of treatment by breaking the present water lfow network is achieved by deep lfooding or well pattern adjustment based on the types and intensity of preferential water lfow passage.