基于储层构型的剩余油精细表征方法及挖潜策略 ——以渤海L油田东营组东二下亚段油层为例
Journal of Petrochemical Universities(2021)
Abstract
渤海L油田从投入开发,经历了内部加密、变井网、转流线等多轮次调整,平面剩余油分布零散,纵向水淹规律异常复杂,剩余油挖潜难度大.综合应用岩心、测井、地震、生产动态等资料,对厚层油藏储层进行精细刻画,指导剩余油精细表征和挖潜.研究发现,该油田单砂体平面以对接式为主,纵向叠置以切叠式为主,南部垂向加积型朵叶体剩余油富集在断层附近、潜山围区、砂体沉积边部,可部署定向井挖潜,中部前积型朵叶体剩余油富集在厚砂体顶部及薄夹层下部,可部署水平井挖潜.
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