Sentence examples for logging of boreholes from inspiring English sources

In exploration programs for coal mining, geophysical logging of boreholes is mainly undertaken to reveal seam locations and the basic lithological section.

Soil properties from the SPT data and logs of boreholes at the tower site are used to determine the coefficients of vertical and horizontal sub-grade reactions.

Soil properties from the standard penetration test (SPT) data and logs of boreholes at the tower site are used to determine the coefficients of vertical and horizontal subgrade reactions that are used in a spread foundation design.

One such project is the geophysical borehole logging of 13 boreholes drilled into the Voltaian sedimentary rocks of Northern Ghana to enhance detailed hydrogeological assessment.

This is important because on the basis of a compilation of temperature logging data of boreholes, Umeda et al. (1999) demonstrated that geothermal disturbance around major volcanoes in Japan is observed generally at <10 20 km from their centers.

Sonic travel time logging of exploration boreholes is routinely used in Australia to obtain estimates of coal mine roof rock strength.

Red lines represent the isotherm obtained from temperature logging of the boreholes (MRSO [1973]).

The borehole logs of Tachecku borehole (Fig. 4), drilled in the Pendjari Oti group, illustrate how the logs add information to the driller's and the geologist's records.

In addition, a database was compiled containing the geological logs of 55 boreholes.

It is often the case that the well log data do not satisfy these criteria due to various reasons namely different tool measurements, different borehole environments, different borehole fluids, poor quality logging conditions, invasion of borehole fluids into the formations, alteration of the formation properties due the presence of borehole fluids and missing recorded data etc.

In Japan, PS logging data between surface and bottom of boreholes at most KiK-net strong-motion stations are available, so the underground velocity structures of PS logging data are adopted to generate multilayered media.