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双河油田厚油层发育,在目前特高食水期开发阶段厚油层内剩余油分布主要受井冈完善程度、地层纵向渗透性、砂你沉积特征、微构造及区域地层压力因素控制。剩余油在井网不完善井区、纵向中低渗透层、注采状况较差的分流河道沉积问及沉积末端、微构造高部位及局部注水压力平衡区相对富集。在完善井冈的基础上根据地层地质特征加强注来结构调整及注水合理调配,是汉河油田油层挖潜的有效途径.
The thick oil reservoirs in Shuanghe Oilfield are developed. The remaining oil distribution in the thick oil reservoirs during the development stage of the present super-high water consumption period is mainly controlled by the perfection of Jingganggang Formation, longitudinal permeability of the strata, sedimentary characteristics of sand, microfacies and regional formation pressure. Remaining oil is relatively enriched in wells with imperfect well pattern, middle and low permeable vertical layers, distributary channel sedimentation in poor injection and production conditions, and at the end of deposition, high parts of micro-structure and local water injection pressure balance area. On the basis of perfecting Jinggang, it is an effective way to tap the potential of the Hanjiang Oilfield by strengthening structural adjustment of injection and rational allocation of water injection according to the geologic characteristics of strata.