The hydrocarbon resources of shale gas and tight oil have made a significant impact on
North American energy reserves over the past decade. The production of so-called …

Despite the success of hydrocarbon production from unconventional shale reservoirs, the
understanding of shale wettability under in-situ conditions remains a challenge. Shale …

Hydraulic fracturing of multi-lateral horizontal wells for shale gas production usually requires
a great amount of water. Field data indicate that only a small fraction of the injected water …

Understanding water uptake of gas shales is critical for designing fracturing and treatment
fluids. Previous imbibition experiments on unconfined gas shales have led to several key …

Deep and ultra-deep reservoirs have gradually become the primary focus of hydrocarbon
exploration as a result of a series of significant discoveries in deep hydrocarbon exploration …

Wettability alteration exhibits a significant potential to improve the oil recovery of shale
reservoirs by means of spontaneous imbibition through shifting the rock wetness from oil-wet …

Hydraulic fracturing of unconventional hydrocarbon resources involves the sequential
injection of a high-pressure, particle-laden fluid with varying pH's to make commercial …

With the development of the oil industry, improving oil recovery (IOR) technology is
becoming more and more important, and an excellent working fluid is a key to IOR. Among …

Spontaneous imbibition is a very important mechanism for the mass transfer between
fracture and matrix in shale and tight reservoirs. To enhance this spontaneous imbibition …

Previous research has confirmed that substantial yield has been recovered in the soaking
period after hydraulic fracturing. Spontaneous imbibition (SI) is the primary mechanism …