CAJ | 학술논문

油田进入高含水后期，如何更好地开采剩余油是油田增产的一个重要方面。大庆油田主要以河流-三角洲沉积为主，如何更好的开采因河道内部夹层遮挡形成的剩余油是今后油田发展的一个主要方向。为了准确的寻求剩余油的具体分布位置，以辫状河道内部建筑结构模式的建立为基本出发点，以现代沉积模式和古代沉积露头为指导，结合岩心、测井曲线、密井网等，建立了一套辫状河道内部夹层分布特征的研究方法。通过对夹层厚度、密度和分布位置等参数的求取，建立了河道内部建筑结构模型，从而为寻找因夹层遮挡形成的剩余油位置提供了技术支持，并提出了适合于研究区开采剩余油的方式。
유전진입고함수후기，여하경호지개채잉여유시유전증산적일개중요방면。대경유전주요이하류-삼각주침적위주，여하경호적개채인하도내부협층차당형성적잉여유시금후유전발전적일개주요방향。위료준학적심구잉여유적구체분포위치，이변상하도내부건축결구모식적건립위기본출발점，이현대침적모식화고대침적로두위지도，결합암심、측정곡선、밀정망등，건립료일투변상하도내부협층분포특정적연구방법。통과대협층후도、밀도화분포위치등삼수적구취，건립료하도내부건축결구모형，종이위심조인협층차당형성적잉여유위치제공료기술지지，병제출료괄합우연구구개채잉여유적방식。
When the oil fields step into the latter high water cut stage, how to better explore the remaining oil is an important aspect of increasing oilfield production. Daqing oilfield is dominated by fluvial-delta facies, therefore, how to better explore the remaining oil formed by the block of channel interlayer is the main direction of oilfield development in the future. In order to find the specific distribution of the remaining oil, based on the establishment of internal structure mode of braided channel, guiding by present depo-sition model and ancient deposition outcrop, and combined with core, logging curve, dense well pattern and so on, a set of research method of braided channel interlayer distribution characteristics was established. Through the evaluation of thickness, density and distribution parameters of interlayer, internal structure mode of the channel was established to provide technical support for seek-ing the remaining oil formed by the block of channel interlayer and put forward the suitable method for exploring the remaining oil in the study area.