In the process of producing shale gas by fracturing, a large amount of water enters shale
due to shale imbibition, which affects the shale permeability because of the positive effect by …

The frictional stability of rocks is fundamental in controlling the instability and activation of
faults. Given the strong correlation between seismic events in the Sichuan Basin of China …

A shale fault reactivated during multistage hydraulic fracturing in the Changning block in the
Sichuan Basin, southwest China, accompanied a cluster of small earthquakes with the …

Increasing the flow capacity and pum** rates is challenging in petroleum production
systems due to drag or frictional losses. Drag-reducing agents (DRAs) are usually added to …

During hydraulic fracturing, the interaction of fluids with shale modifies the pore hydraulic
characteristics, altering hydrocarbon recovery efficiency and CO2 storage of the shale. We …

Seismic activities have been reported by the large-scale fluid injection in shale reservoirs
both during hydraulic fracturing operations and wastewater disposal processes. Fluid …

In this paper, a slick water drag reducer with excellent drag reduction and a simple
molecular structure, called QIE-0, was prepared by inverse emulsion copolymerization. QIE …

The surfactant-polymer-based (S/P) fracturing fluid combines the advantages of the
surfactant-based and polymer-based fracturing fluids. In this study, the synergistic tackifying …

Slick water fracturing fluid is widely used in major oil fields due to its low cost and high drag
reduction. Polyacrylamide emulsions drag reducers play a decisive role in slick water …

In the present work, an experimental study was carried out investigating the influence of
water at the contacts of grain-block systems subjected to low-velocity impacts using two …