Results 101 to 110 of about 3,836,809 (259)

Experimental study on the permeability features of long flame gas water phase

open access: yesGong-kuang zidonghua
There is a large amount of CBM in the long flame coal. With the continuous increase of mining depth, it is necessary to explore the complex permeability features between CBM and groundwater in the coal reservoir to reduce the difficulty of CBM mining and
CHEN Gonghui   +3 more
doaj   +1 more source

Finite size effects in a model for plasticity of amorphous composites

open access: yes, 2015
We discuss the plastic behavior of an amorphous matrix reinforced by hard particles. A mesoscopic depinning-like model accounting for Eshelby elastic interactions is implemented. Only the effect of a plastic disorder is considered. Numerical results show
Hansen, Jesper S.   +3 more
core   +1 more source

Study on the influencing factors of radial non-Darcy seepage of gas in CO2 fracturing boreholes

open access: yesMeitan xuebao
CO2 fracturing, as a key technology to improve the gas extraction efficiency of low-permeability coal seams, has a core mechanism of injecting high-pressure CO2 into coal seams to induce the generation of a fracture network within the coal body, thus ...
Tianjun ZHANG   +6 more
doaj   +1 more source

Research Progress of Effective Stress and Effective Stress Equation [PDF]

open access: yesCurrent Trends in Civil & Structural Engineering, 2021
openaire   +1 more source

Deformation Stress State of Elastic Bodies

open access: yesActa Polytechnica, 2005
The theory of the deformation stress state is based on the actual corpuscular structure of matter characterized in terms of mechanics by the fact that an increase in the distance of two adjacent atoms is accompanied by the origin of an attractive force ...
J. Skokánek
doaj  

Pore Pressure Prediction and Fluid Contact Determination: A Case Study of the Cretaceous Sediments in the Bredasdorp Basin, South Africa

open access: yesApplied Sciences
Pore pressure prediction gives drillers an early warning of potential oil and gas kicks, enabling them to adjust mud weight pre-emptively. A kick causes a delay in drilling practices, blowouts, and jeopardization of the wells.
Phethile Promise Shabangu   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy