低渗透裂缝油藏生产曲线特征及提高采收率技术研究  

The Research of Low Permeable Fracture Reservoir Production Curve Characteristics and Enhance Oil Recovery Technology

作　　者：李永太[1] 李辰[1,2] 张建国[3] 郝化武[3] 王振生[3] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]陕西省石油化工研究设计院,陕西西安710054 [3]延长油田股份有限公司子北采油厂,陕西子长717300

出　　处：《新疆大学学报（自然科学版）》2016年第4期438-443,共6页Journal of Xinjiang University(Natural Science Edition)

基　　金：陕西省教育厅重点实验室项目(11JS048)

摘　　要：通常情况下,低渗透裂缝油藏具有微裂缝发育、脆性大、储集层岩石密度大、渗透率低、峰度低、压力低等特点,加大了井区的开发难度.针对目前低渗透油藏的采收率相关技术进行了研究,提出通过建立低渗透裂缝油藏的产能方程,对其生产曲线特征进行了分析,并尝试不从先前的微生物法、化学法等出发,而是通过提高油藏润湿性、改变平面渗流场等方法提高低渗透裂缝油藏的采收率.Under normal circumstances,low permeable fracture reservoir with micro fracture development,large brittleness,reservoir rock density,low permeability,low kurtosis,low pressure,increased the development difficulty of well block.In this paper,based on the current recovery of low permeability reservoirs in relevant technology are studied,put forward through the establishment of low permeable fracture reservoir productivity equation,analyzes the characteristics of its production curve,and try not from previous biological method,chemical method,etc,but by raising the reservoir ability,the change methods of planar seepage field improve the recovery efficiency of low permeable fracture reservoirs.

关 键 词：低渗透裂缝油藏 生产曲线特征 润湿性 平面渗流常采收率 

分 类 号：TE122[石油与天然气工程—油气勘探]