超低渗透储层压力传播规律研究

针对超低渗透油气藏开发过程中储层会发生一定程度的介质变形现象,以介质变形实验为基础,从压力在地层中的传播速度入手,对超低渗储层压力传播规律进行了深入研究.研究结果表明在油气田开发过程中,超低渗储层压力传播速度明显低于常规储层,并且由于介质变形的存在,压力传播速度会有较大的偏差,以常规压力传播规律进行试井分析会发生较大的误差,导致试井解释结果不准,对储层认识不清,从而造成开发效果欠佳.研究结果揭示了超低渗储层压力传播规律,为油气田开发提供了有力的理论基础,并解释了目前试井分析中存在的问题.

Research of ultra-low permeability formation pressure propagation

During the ultra-low permeability reservoir development process, it occurs to the phenomenon of media distortion to some extent. On the basis of deformation experiments, this paper researches the propagation of ultra-low permeability reservoir pressure. The results show that during the oil and gas field development, ultra-low permeability reservoir pressure propagation velocity was significantly lower than conventional reservoirs, and the deformation due to porous media distortion, the pressure propagation velocity have a greater bias to conduct regular stress testing analysis propagation law large errors will occur, resulting in well test interpretation results allowed for a clear understanding of the reservoir, resulting in poor development results. The results of this study can reveal the propagation of ultra-low permeability reservoir pressure, provide a strong theoretical foundation for oil and gas field development, and explain the existing problems in well test analysis.