摘要
通过对饶阳坳陷刘李庄油田雁107断块古近系沙四段裂缝型砾岩油藏的地层沉积、储层物性及裂缝特征的研究,认为雁107断块沙四段沉积期属于溶蚀垮塌扇沉积,多个断块高点控制了砾岩扇体的展布,砾岩扇体总体上具有自北东向南西方向伸展的趋势,总体上属于受断层分割的块状底水裂缝型油藏。根据雁107断块沙四段裂缝型砾岩油藏6个小层剩余油纵横向分布特征,认为雁107断块裂缝型砾岩油藏剩余油分布主要是受砾岩储层沉积旋回、裂缝发育及开采期注水方式的影响。提出了改变目前的注水方式是提高剩余油采收率的主要措施。
Based on the comprehensive analysis of characteristics of stratum-sediments,physical property and fractures of the fractured conglomerate reservoirs in Es4 of Pilocence in Block Yan 107 of Liulizhuang Oilfield in Raoyang Depression ,it was considered that it belonged to solution-collapsing fan deposition and there were number of high points which controlled the distributional range of the conglomerate fan extending from the northeast to southwest.it was totally classified as fractured block reservoirs with bottom water which was divided by fault.And in accordance with the law of vertical and horizontal distributions of residual oil of the six layers in fractured conglomerate reservoirs in Block Yan 107,analysis shows that the residual oil distribution of the fractured conglomerate reservoirs in Block Yan 107 is influenced by the sedimentary cycle,characteristics of the fracture and water injection mode during the oilfield development.It is proposed that the alternation of the current water injection mode is the way to raise the rate of residual oil recovery efficiency.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2010年第4期1-6,共6页
Journal of Oil and Gas Technology
基金
国家油气重大专项(2008ZX05023)
关键词
雁107断块
裂缝型砾岩油藏
剩余油分布
影响因素
Block Yan 107
fractured conglomerate reservoir
residual oil distribution
influential factor
