Field observations indicate that almost 59% of coalbed methane (CBM) wells in the southern
Qinshui Basin showed insufficient daily gas production (∼ 600 m 3/t); this is caused by the …

The relative permeability of coal to gas and water is an essential parameter for
characterizing coalbed methane (CBM) reservoirs and predicting coal seam gas production …

The understanding of the mechanisms that govern spontaneous water imbibition in gas-
water systems plays a significant role in operating the hydraulic fracturing and the …

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 …

Abstract The Middle Jurassic Walloon Subgroup coals in Australia's Surat Basin are
extremely rich in low-medium rank coal seam gas (CSG) resources, making it one of the …

CO2 injection is an effective way to improve oil recovery for tight sandstone reservoirs. In this
study, the tight sandstone cores collected from Chang 6 Member of Yanchang Formation in …

Understanding the invasion and flowback processes of water, as the main source of
hydraulic fracking fluid, is crucial for the proper evaluation and development of complex gas …

The movable-water saturation (MWS) of coal is critical for the flow of coalbed methane
(CBM), however, there is a relative lack of research on it, especially of different-scale pores …

The gas–water seepage parameters of coal reservoir have to do with the development effect
of coalbed methane (CBM) wells, and determine the output characteristics of fluid in coal …

The low-field NMR imaging (NMRI) technology plays a key role of visualization of helium-
water flow in tight coal. Combined with the traditional description by T 2 spectrum, the NMRI …