Sentence examples for using a surface borehole from inspiring English sources

The key factors influencing the quantity of gas and the drainage flow network using a surface borehole were presented.

This paper therefore establishes a mathematical model for extracting gas from pressure-relieved coal seams using a surface borehole.

To solve this problem, a mathematical model for extracting pressure-relieved gas from a protected coal seam using a surface borehole was established, based on the radial gas flow theory and law of conservation of energy.

A surface borehole was simultaneously used to extract the gas from the protected layer and the gob.

Open image in new window Fig. 1 Model of gas extraction by a surface borehole.

We have observed anthropogenic secondary minerals on borehole walls using a borehole televiewer (BTV) in boreholes drilled into granitic rock.

The star in this figure indicates the K-5 measurement borehole used by Sakaguchi et al.11 with the DCCBO technique using a downward borehole from the gallery floor.

(a) Grinding experiments using a borehole core sample and a planetary ball mill.

In addition, we used a custom borehole geophone to record icequakes46, we measured surface velocities (both horizontal and vertical) with dGPS (from which we were able to calculate bed separation), we determined a glacier-wide velocity from satellite data (using speckle tracking), and we calculated surface melt from the positive degree day algorithm (see Methods for details of these techniques).

Stas, L., Soucek, K., Knejzik, L., Waclawik, P. & Palla, L. Measurement of stress changes using a compact conical-ended borehole monitoring.

Using the surface and borehole site pairs of KiK-net stations, Wu et al. (2010) pointed out nonlinear site responses even for shakings as low as about 20 30 cm/s2.