石油勘探与开发2017，Vol.44Issue(3)：407-414,8.DOI:10.11698/PED.2017.03.10
三角洲砂体构型对水驱波及特征的影响——以南图尔盖盆地Kumkol South油田J-Ⅱ层为例
Influences of delta sandstone architecture on waterflooding sweep characteristics: A case study of layer J-Ⅱ of Kumkol South oilfield in South Turgay Basin, Kazakstan
摘要
Abstract
Taking layer J-Ⅱ of Upper Jurassic of Kumkol South oilfield in South Turgay Basin,Kazakstan as an example,the article studied the architecture characteristics and heterogeneity of delta sandstones,and determined the influence of sandstone architecture on waterflooding sweep characteristics using fine characterization of sandstones,comprehensive interpretation of waterflooded layers,statistical analysis of production and injection profiles,reservoir numerical simulation methods.The result shows that the delta sandstones have a complex architecture of nosaic structure with mudstone baffles and mud-interbeds,and the sandstone architecture controls the sweeping characteristics of waterflood:due to impermeable or low permeable boundaries between single sand bodies,and lateral and vertical blocking of underwater distributaries bay mudstone,sands in delta have very complicated architecture,and the injected water flows priorly into underwater distributaries channel sand and mouth bar sand with better physical properties,making these two types of sands suffer stronger warterflooding,and have higher recovery degree and better waterflooding sweep effect in plane.Inside single sand bodies,on the one hand,underwater distributaries channel sand and mouth bar sand have high vertical producing degree and good waterflooding sweep effect because mud interbeds in the sands have vertical blocking and shunt effect on injected water;on the other hand,these two types of sands have inhomogeneous waterflood sweeping because of large permeability difference and high development of dominant water channels.In contrast,made up of thin homogeneous fine sand with poor physical properties,lateral sheet sand often has even water-flooding and poor waterflooding sweep effect.关键词
哈萨克斯坦/南图尔盖盆地/三角洲/砂体构型/非均质性/水驱波及特征/水淹特征Key words
Kazakstan/South Turgay Basin/delta/sandstone architecture/heterogeneity/waterflooding sweep characteristics/warterflooding characteristics分类
能源科技引用本文复制引用
赵伦,王进财,陈礼,张祥忠,曹海丽,王成刚,赵亮东..三角洲砂体构型对水驱波及特征的影响——以南图尔盖盆地Kumkol South油田J-Ⅱ层为例[J].石油勘探与开发,2017,44(3):407-414,8.基金项目
国家科技重大专项“全球常规油气资源潜力分析与未来战略选区”(2011ZX05028-001) （2011ZX05028-001）
中国石油天然气集团公司重大专项(2011E-2506) （2011E-2506）
