Experimental investigation of the hydro-mechanical behavior of tight gas formation sandstone and its impacts on the wellbore stability
Abstract
The tight gas formation sandstone in North Germany with a permeability below 0,6 mD is characterized by an unknown Biot’s and Skempton’s coefficient, which are the hydro-mechanical coupling parameters to decide whether the under-balanced drilling (UDB) could be used. This two coefficients and the sandstone strength are determined by laboratory experiments. Based on the experimental results and on theory of poroelasticity as well as on the parameter variation analysis, the range of minimum mud density is determined for a vertical and horizontal wellbore in the tight gas formation sandstone.
Fields of Study & Subjects
Hydraulic Fracturing and Reservoir Analysis
Drilling and Well Engineering
Seismic Imaging and Inversion Techniques
Publication details
- Journal / source
- Impact of Human Activity on the Geological Environment EUROCK 2005
- Publisher
- CRC Press
- Pages
- 205–212
- Publication date
- 4 February 2026
- Language
- EN
- Document type
- Book chapter