The success of a hydraulic fracturing (HF) operation is strongly dependent on brittleness of
the formation. Several models based on mechanical testing, mineral composition, and sonic …

A series of specimens made from transparent casting resin, each with a spherical pore at the
centre of specimen were tested in a polyaxial stress state with different stress ratios (x/y σ x/σ …

The presence of micro-fractures in shale reservoirs is vital for economic production. While a
number of models have been proposed to predict the propagation pressure of pre-existing …

The CO2 storage capacity is greatly affected by CO2 injection scenario–ie water alternating
CO2 (WACO2) injection, intermittent injection, and continuous CO2 injection–and WACO2 …

The accurate predicting of the lithology is essential to optimize all drilling parameters and to
minimize the drilling cost. Various methods have been used previously for predicting …

Hydraulic fracturing has been widely applied to enhance the conductivity in tight sandstone
reservoirs, ie reservoirs with low porosity and permeability. The interaction between a …

The microseismicity associated with hydraulic fracturing in unconventional reservoir (ie
shale gas play) has been investigated in the past several decades. Few experimental …

In the case of long-range propagation of forward scattering, due to the accumulation of
phase change caused by the velocity perturbations, the validity of the Born approximation is …

Deep hydrocarbon resources below 4000 m are an important replacement for shallow-depth
resources; however, as depth increases, the difficulty and cost of development increase …

Wettability of rock–fluid systems is an important for controlling the carbon dioxide (CO2)
movement and the capacities of CO2 geological trapping mechanisms. Although contact …