Micro fissure is a significant factor for determining the fluid loss in low-permeability fractured reservoir, due to its small porosity and low permeability in the matrix.
对于裂缝性低渗透储层，由于其基质孔隙度小、渗透率低，天然微裂隙成为决定压裂液滤失的主要因素。
2
When temperature is higher than the threshold, the main change of permeability and porosity was resulted from the increment of micro-fissure width.
高于阈值温度后，影响岩石渗透率和孔隙度变化的主要机理是早期产生的微裂纹宽度增加。
3
Small and micro fractures are the most developed fractures in the buried hill reservoir, whose width and areal porosity are positively related.