The development of hydraulic fracturing and horizontal drilling techniques has promoted the
exploitation of shale gas resources. However, using water has several potential drawbacks …

The shale boom in North America started more than a decade ago, however, the issue of
substantial fracturing fluid loss inside shale did not draw much attention for a decade. In the …

Tight hydrocarbon reservoirs require stimulation to improve the recovery of oil and gas
resources. Hydraulic fracturing is a technique extensively employed in the oil and gas …

Friction reducers (FRs) play a vital role in large-displacement shale hydraulic fracturing. This
paper reviews the drag reduction (DR) mechanism of FRs, its development and application …

Spontaneous imbibition behavior gained popularity several decades ago which led to
widely exploited application in fractured reservoirs. Recently the imbibition behavior of …

In this study, we investigate the role of clays on water sorption (adsorption and desorption)
behaviour of gas shale samples. First, we conduct conventional sorption experiments on …

Spontaneous imbibition is an important phenomenon in tight reservoirs. The existence of a
large number of fractures and micro-nano pores is the key factor affecting the spontaneous …

The gas/fluid flowing behavior and fluid distribution under capillary forces in porous media
are essential for evaluating the pore-fracture characteristics of coal. Capillary force is crucial …

In the hydraulic fracturing process, proppant is a crucial substance that holds a fracture open
after creating and generating conduits for oil/natural gas movement in the wellbore. With the …

Supercritical CO2 pneumatic fracturing technology has promising applications in petroleum
and shale gas extraction. A true triaxial supercritical CO2 pneumatic fracturing experimental …