黔西北地区煤层具有煤层薄、间距小、煤层层数多、渗透率低、孔隙度小、煤质软以及煤岩杨氏模量低、泊松比大等特点,针对其煤层特点和岩石力学性质,采取了暂堵转向压裂技术、防煤粉压裂技术、支撑剂优化组合、压裂参数优化等一系列的压裂改造措施,取得了很好应用效果。 Northwest Guizhou coal seam has the characteristics of thin coal seam, small spacing, multiple coal layers, low permeability, low porosity, soft coal, low Young’s modulus and large Poisson’s ratio. According to its coal seam characteristics and rock mechanics It has taken a series of fracturing improvement measures such as temporary plugging and fracturing technology, anti-pulverized coal fracturing technology, proppant optimization and fracturing parameter optimization, and achieved good application results.