One of the problems during drilling operation is wellbore instability. Many parameters affect
the wellbore stability. Some of these parameters are related to the properties of drilling mud …

Borehole instabilities pose significant challenges to drilling and completion operations,
particularly in regions with weak bedding planes and pre-existing fractures where formations …

In the process of shale gas exploitation, the hydraulic fracturing technology is generally used
to generate the stimulate reservoir volume (SRV). The network connectivity between natural …

Shale gas contributes significantly to current global energy consumption, and an accurate
estimation of geological gas-in-place (GIP) determines an optimal production plan. As the …

This research reviewed the mechanics and gas desorption properties of intact coal, and
tested the crushing work ratios of different intact coals, and then, studied the stress …

Wellbore stability analysis is a critical component of petroleum engineering, evaluating the
risks of sanding, reservoir compaction, and casing failures. Laboratory rock mechanical …

Wellbore instability is reported frequently as one of the most significant incidents during
drilling operations. Analysis of wellbore instability includes estimation of formation …

In many coal mines, limestone-confined aquifers underlie coal seams. During coal extraction
from these mines, water inrushes occur frequently with disastrous consequences. This paper …

The influence of gas diffusion behavior on gas flow and permeability evolution in coal seams
is evaluated in this paper. Coalbed methane (CBM) reservoirs differ from conventional …

Permeability is a physical property in rocks of extreme importance in energy engineering,
civil and environmental engineering, and various areas of geology. Early on, fractures in …