TY  - JOUR
T1  - Petrophysical Analysis of Palaeozoic Carbonate Rocks in Lafarge Quarry, Perak, Malaysia
AU - Shahirah Manan, Fatin AU - Arshad Beg, Mirza AU - Abd Kadir, Askury 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 14
SP  - 2875
EP  - 2884
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.2875.2884
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.2875.2884
KW  - Dolomitization
KW  -porosity and permeability
KW  -lithology
KW  -mineralogical analysis
KW  -XRF
AB  - Dolomitization is a complex issue because it
can develop and destroy matrix porosity. In many cases,
dolomitized rock has better reservoir properties than
limestone. This is because chemically during the
dolomitization process, two moles of calcite are
transformed to one mole of dolomite, causing a net rise in
porosity. However, there are few factors that need to be
considered as they may affect the porosity during
dolomitization such as the characteristics of precursor
sediments, subsequent leaching and cementation. The
main objective of the study is to analyze the porosity and
permeability of carbonate rocks in Kinta valley, Perak in
relation to lithology of rocks. Systematic outcrop
sampling technique is applied in collecting the samples
for laboratory analysis. Core plugs were prepared for
further analysis. Porosity and permeability of 13 selected
core plugs from Hill E and B of Lafarge quarry were
measured by using poroperm and helium porosimeter
equipment. Hand samples were crushed by using grinder
machine into powder form for X-Ray Fluorescence (XRF)
analysis. Mineralogical analysis is used to determine
either the rocks are calcitic or dolomitic and to match with
lithology. In average, the results show limestone has the
highest porosity and permeability with the highest
calcium content. While, argillaceous limestone has the
lowest porosity and permeability compared to others.
Dolomite rocks has slightly lower porosity and
permeability than limestone but higher than argillaceous
limestone.
ER  -