Various compositional, depositional and maturity related influencing factors affect the
complex pore structure of coal. To study the pore structural evolution at nanoscale, a well …

The increasing significance of shale gas resources to the global energy supply has resulted
in an increasing need to understand shales as gas reservoirs. Shales commonly have …

Ultrasonic stimulation technology with mechanical vibration effect and thermal effect offers
unique advantages for promoting coalbed methane desorption and improving reservoir …

The gravimetric method for determining coal gas sorption has many advantages and
limitations. The article presents the influence of various factors on the results of methane …

Igneous intrusion in coal measures is a common phenomenon in many coalfields
worldwide. This process forms various degrees of metamorphic coal due to the complex …

At present, there are few studies on the development, evolution, and quantitative analysis of
internal pores and cracks after heat treatment of coal. On the basis of this, low-temperature …

During their maturation, immature coals with different organic matter (OM) types exhibit
differences in their hydrocarbon-generating evolution processes. However, these …

Systematic understanding of geological controls on methane storage capacity in marine-
continental transitional shale can help to predict the potential gas resources in such shale …

Numerical simulations of a geothermal reservoir often assume that the primary heat source
is a magmatic system; however, heat from the host rock and the coupled complex transport …

Hydraulic fracturing is the main technical means for the reservoir stimulation of coalbed
methane (CBM) vertical wells. The design of fracturing fluid volume (FFV) is mainly through …