Abstract Liquid nitrogen (LN 2) freeze-thaw cycle, a new waterless fracturing method, has a
significant potential in coalbed methane (CBM) production. The ultra-low temperature of LN …

Shales have been a major focus of the energy industry over the past few decades. Recently,
there is a paradigm shift in the energy industry to low-carbon solutions, such as carbon …

Cryogenic fracturing with liquid nitrogen (LN 2) offers the benefits of reducing the water
consumption and adverse environmental impacts induced by water-based fracturing, as well …

Exposure to cryogenic liquids can significantly impact the petrophysical properties of rock,
affecting its density, porosity, permeability, and elastic properties. These effects can have …

Despite drilling numerous horizontal-hydraulically-fractured wells in unconventional
reservoirs, the oil recovery factor (RF) of such reservoirs is still very low (< 10%), leaving …

Liquid nitrogen (LN 2) fracturing technology as a kind of waterless fracturing technology has
received extensive attention in recent years. In order to investigate the evolution law of …

Hydraulic fracturing is widely used to increase permeability of tight deep geological
formations for improving oil and gas production and enhance geothermal energy extraction …

Water jet impact technology has more advantages in environmental protection, safety and
quality. This paper innovatively puts forward the new technology of temperature …

Unconventional reservoirs have ultra-low permeability, and the combination of horizontal
wells and multistage transverse hydraulic fracturing have unlocked economical hydrocarbon …

Despite containing massive volumes of hydrocarbons, unconventional reservoirs have low
recovery factors,< 10% in oil reservoirs. Production from such ultra-low-permeable …