ANALYSIS OF SUMATERA QUARTZ SAND AND SURROUNDINGS AS FRAC SAND AND IDENTIFICATION OF MAIN PARAMETERS DETERMINING CRUSH RESISTANCE
To increase reservoir production, especially in non-conventional systems, proppant has an important role in hydraulic fracturing techniques to hold fractures open. Among the various types of proppants, natural quartz sand, called as frac sand, has not been utilized optimally in Indonesia, even th...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/82995 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | To increase reservoir production, especially in non-conventional systems, proppant
has an important role in hydraulic fracturing techniques to hold fractures open.
Among the various types of proppants, natural quartz sand, called as frac sand, has
not been utilized optimally in Indonesia, even though the resource potential is quite
large. This research is divided into three stages of activities: introduction, data
collection and processing, and data analysis. The intoduction stage includes a
literature study regarding proppants, especially frac sand, and geological
conditions of the study area. The data collection and processing stage consists of
quartz sand sampling and testing samples in the laboratory. Laboratory analysis
includes analysis of sieve, roundness, sphericity, acid solubility, turbidity, bulk
density, absolute density, and crush resistance. The data analysis stage includes
assessing quartz sand quality as frac sand in accordance with API Standard 19C
(2018), identifying the main parameters determining crush resistance quality, and
evaluating quartz sand quality against geological conditions. The results of the
sieve analysis showed that samples were dominated by grain size fractions 30/50
and 40/70. Binocular microscope observations show roundness values 0.35 - 0.65
and sphericity values 0.55 - 0.63. Acid solubility analysis shows a percentage value
of dissolved material of 0.45 – 7.93%. Turbidity analysis shows that the samples
generally have turbidity values of 217 – 18,450 FTU. Overall, the samples have
absolute density values around 2.65 - 2.69 and these are close to quartz density,
while the bulk density ranges between 1.34 - 1.60. Based on assessments referring
to API Standard 19C (2018), there are no samples that meet the criteria for frac
sand. Based on Pearson correlation analysis, the sphericity parameter has the
strongest influence with a correlation value of -0.73, then the roundness parameter
with a correlation value of -0.63. Based on regional geological approach, it can be
concluded that quartz sand that has experienced multi-cycle sedimentation has
relatively better textural maturity and will improve its quality as frac sand.
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