安棚特低孔特低渗油气藏裂缝特征研究及应用

A Study and Application on Fractures in Anpeng Super-Low Porosity and Super-Low Permeability Reservoir

针对泌阳凹陷安棚油气藏特低孔特低渗、单井自然产能低的特点 ,应用天然裂缝识别技术和裂缝参数定量确定方法对储层裂缝特征、单井裂缝发育井段、裂缝形成期次及裂缝分布规律等进行了系统研究 ,并对产层下限、产层分布、压裂层位选择等方面进行了相关研究 ,据此确定了合理开发井距和井排部署方向 ,充分利用了天然裂缝的有利面 ,减少或避免了其不利影响 ,使特低孔特低渗的安棚油气藏投入了开发 。

This paper introduces the ways to recognize natural fracture and determine fracture parameter , including fracture features, cause of formation, distribute law, etc. It also analyzes lower limit of produce layers and selection of fracturing layers, especially supplys suggestion of well network deployment. The positive effects of fractures on water-flooding in Anpeng Oilfield are enhancement of reservoir permeability while adverse effects are canceled.