摘要
天然水驱油藏开发面临的核心问题是含水上升快,而不同类型的天然水驱方式和隔夹层对抑制含水上升模式有不同的影响。受隔夹层位置和边底水的不同驱动机理影响,使得边底水复合砂岩油藏不同部位、不同阶段呈现出单一型或者复合型的见水规律,单一型的边水突进和底水锥进受隔夹层影响,在不同生产阶段转化为次生边水与次生底水油藏等复合模式。本文通过对隔夹层的精细刻画和油水运动规律的分析,建立了一套有效识别油井水淹模式的方法,可综合分析和评价天然水驱砂岩油藏的水驱推进过程。通过对剩余油分布模式进行分类刻画,综合调整方案实施后取得了显著的改善效果。
The core problem faced by the development of natural water flooding reservoirs is that the water content rises quickly,and different types of natural water flooding methods and interlayers have different effects on the suppression of the water-containing rising pattern.Due to the different driving mechanism of the interlayer position and the bottom water,the single-segment or compound-type water seepage rule appears in different parts and stages of the edge-water composite sandstone reservoir.The single edge water outburst and the bottom water coning are affected by the interlayer,and are converted into secondary and secondary bottom water reservoirs in different production stages.Through description of the interlayer and analysis of the movement law of oil and water,a set of methods for effectively identifying the flooding patterns of oil wells can be established to comprehensively analyze and evaluate the water flooding process of natural water-drive sandstone reservoirs.Through the classification and description of the remaining oil distribution patterns,the implementation of a comprehensive adjustment program targeted to achieve a significant improvement.
作者
李丹
景佳骏
李明林
李光帅
李健
LI Dan, JING Jiajun, LI Minglin, LI Guangshuai, LI Jian(Jidong Oilfield Company, PetroChina, Tangshan 063200, Chin)
出处
《中国矿业》
北大核心
2018年第B06期377-381,共5页
China Mining Magazine
关键词
天然水驱
边底水
高含水
隔夹层
油水运动
见水规律
剩余油
natural water flooding
edge and bottom water
high water content
interlayer
oil and water movement
water breakthrough rule
remaining oil
