| dc.description.abstract | This research was conducted in the field of IUP PT Firman Ketaun, North
Bengkulu, with the scope limited to coal seam B1, B2, B3, B4, C1, C2 and C3
Lemau Formation. Coal quality is generally obtained through laboratory analysis
using coal core data, but it is quite time-consuming and costly. In this study,
researchers tried to find a correlation between the deflection of geophysical log
values and coal quality parameters that are expected to be able to assist in coal
quality prediction activities during exploration activities. In addition, geophysical
log values are also used in correlation analysis of the characteristics and
interpretation of the depositional environment and its influence on the quality of
coal formed. The research was conducted quantitatively and qualitatively using
geophysical log data, coal quality and core photos. The method used was
correlation coefficient to determine the correlation between geophysical log
values and coal quality parameters; electrofacies analysis, stratigraphic
sequence, and sulfur content to determine the coal deposition environment in the
study area. The results show that the coal in the study area was deposited in a
delta plain environment, and there is a correlation between density and coal
quality parameters, namely calorific value and ash content, where the higher the
density value in units of g/cc, the higher the ash content contained in the coal,
while the lower the calorific value of the coal. | en_US |
