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Studi Laboratorium Dampak Penambahan CMC Pelepah Pohon Salak terhadap Filtration Loss dan Rheology Pada Lumpur Pemboran
Filtration loss is water contained in drilling mud entering the formation. Filtration greatly influences drilling performance in oil and gas wells. The additive used to overcome filtration loss is carboxy methyl cellulose (CMC). This additive is a type of chemical that is quite widely used. So research was carried out to obtain new additive materials, one of which was CMC from salak tree fronds with a polysaccharide content of 42.54%. The rheology of drilling mud that must be controlled in a drilling operation, whether oil and gas or geothermal, is viscosity, plastic viscosity, yield point, and gel strength. From the results of filtration loss and rheology research using CMC of salak tree fronds with concentrations of 4, 6, 8 and 10 gr. The filtration loss value obtained was 9.5 – 7.5 ml/30 minutes, the mud cake value range was 0.57 – 1.2 mm, the gel strength value was 0.5416 – 0.6923 lb/100 ft2, the yield point value was 37. – 45 lb/100 ft2, plastic viscosity can be obtained at a value of 15 – 33 cp, viscosity can be obtained at a value of 47.55 – 51.04 s/quart. The more CMC added, the greater the value obtained. The more the CMC mass of salak tree fronds is added, the filtrate volume value obtained from filtration loss will decrease because the mud becomes thicker and all the results meet the standards.
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