我国煤层气资源丰富, 但是由于赋存条件复杂, 勘探开发技术难度大, 不同地质条件下煤层气开发
技术通用性差等诸多难点, 导致单井产量普遍较低. 首先梳理了近年来我国煤层气在钻井, 完井 …

This review presents comprehensive waterless fracturing technologies and the latest
advances in the field; summarizes and analyzes their technical principle, construction …

Fracturing plays, a vital role to achieve the optimal recovery from the unconventional shale
gas reservoirs and fracturing fluid is considered as “blood” in the entire operation. There are …

Exploring the dynamic mechanical properties of shale helps to understand the damage of
shale reservoirs under dynamic loading. In this paper, static Brazilian splitting experiments …

High-energy gas fracturing of shale is a novel, high efficacy and eco-friendly mining
technique, which is a typical dynamic perturbing behavior. To effectively extract shale gas, it …

The efficiency of gas drainage in deep coal seams is generally poor because of their
typically low-gas permeability and high-geostress characteristics. Therefore, we conducted a …

Hydraulic fracturing is one of the most important stimulation measures. As the most widely
used fracturing fluid system, the damage mechanism induced by water-based fracturing …

Enhancement of coal permeability plays the key role in methane extraction underground
coalmine. As the physical blasting method, liquid CO2 phase change fracturing (LCPCF) …

The innovative Methane in-situ deflagration fracturing technology offers several benefits. It
can prevent formation pollution and eliminates the need for complex treatment procedures …

The implementation of liquid nitrogen injection into coal seam boreholes is a prerequisite for
its application to increase coal seam permeation. Exploring the efficiency of liquid nitrogen …