裂缝性低渗透储层压裂技术研究

运用小型压降可以判断天然裂缝存在与否,以及天然裂缝的张开压力大小.裂缝性储层并不需要高导流能力的人工裂缝,沟通更多的储层区域和天然裂缝是保证油井压后高产稳产的关键.通过支撑剂优选、压裂液优化、施工工艺优化这三个方面的研究,来有效控制压裂液向天然裂缝的滤失,保证施工的成功率.

Research and Application of Fracture Techniques in Nature-fracture Developed Reservoirs

Using minifracture,we can judge the nature-fractures exist or not,we can also define the nature-fracture open pressure.Nature-fracture reservoir needn’t high conductivity artificial fractures. Communication of more area and more nature-fractures is the key factors of the high production of oil wells after fracturing.The key problem is to control the lost of fracturing fluid in nature-fracture reservoir.In this article research of proppant option,fracturing fluid optimization and fracturing process optimization is done to guarantee the fracturing success rate.Through research and combined with condition of on-site operation,good fracturing results are achieved after optimization of fracturing operation parameters.