濮城油田卫42 断块油藏埋藏深、物性差、储层沉积环境和砂体连通状况不清、平面非均质性强、注 水困难、井网不完善，开发效果差。以油藏精细描述和油藏动态分析为基础，研究了油藏剩余油类型及分 布规律。油藏剩余油类型主要有层间干扰型、构造高部位型、注采不完善型和透镜状砂体型。针对油藏地 质特点和剩余油的不同类型，开展了滚动扩边、层段重新组合以及调整注采井距和井网密度等油藏工程 研究。实施结果表明，针对不同类型剩余油分布的井网优化和井网加密等措施明显改善了开发效果。

The reservoir in Wei 42 block of PuchengOilfield was characterized by deep burial, poor physical properties, unclear sedimentary environment and sand body connectivity, strong heterogeneity, difficult water injection, imperfect well spacing and lowefficient development. Based on fine reservoir description and performance analysis of production, this paper studied the types and distribution of remaining oil. The remaining oil types were classified into interlayer interference type, structural high part type, imperfect injection-production type and lenticular sand body type. Aimed at the geological characteristics of reservoir and different types of remaining oil, manymeasures were carried out, such as enlargement adjustment, regrouping of layers, and adjustment of injection-production well spacing and well spacing density. The application result shows that well pattern optimization and well pattern thickening for different types of remaining oil distribution improved the development effect.