Geofluids / 2019 / Article / Tab 1

Research Article

Experimental Investigation on Propagation Behavior of Hydraulic Fractures in Coal Seam during Refracturing

Table 1

Petrophysical properties of the testing coal.


Porosity (%)8.44
Permeability (10-3 mD)1.91
Poisson’s ratio perpendicular to BP0.417
Poisson’s ratio parallel to BP0.407
Young’s modulus perpendicular to BP (GPa)6.03
Young’s modulus parallel to BP (GPa)5.65
Tensile strength perpendicular to BP (MPa)2.71
Tensile strength parallel to BP (MPa)2.34
Compressive strength perpendicular to BP (MPa)93.78
Compressive strength parallel to BP (MPa)79.98

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19. Sign up here as a reviewer to help fast-track new submissions.