期刊名称：IJEMS (Indonesian Journal of Environmental Management and Sustainability)
印刷版ISSN：2598-6260
电子版ISSN：2598-6279
出版年度：2020
卷号：4
期号：1
页码：1-9
DOI：10.26554/ijems.2020.4.1.1-9
语种：English
出版社：ARTS Publishing Corp.
摘要：Bentonite,especially Sodium (Na) Bentonite is a type of clay that is used as a basis for water-based drilling mud in the of oil and gas wells drilling throughout the world including Indonesia,bentonite used in Indonesia is still partially imported from abroad.Sodium Bentonite can be substituted with ordinary clay which is treated by beneficiation throught addition of Na2CO3.The area of Musi Rawas Utara (Muratara) Regency of South Sumatra Province contains clay reserves resulting from pyroclastic deposit which will be investigated as potential subtitutional materials of imported API Bentonite.Clay samples from 6 different locations were prepared by first looking for the best % swell of sample beneficiation combination from all over the 36 combinations through the free swell test,the results obtained that the 4% BWOC Na2CO3 combination gave the best % swell.From this,24 samples were prepared for various measurements of mud properties using standard equipment and procedures following the API RP 13 B for water-based mud with drilling grade Na-bentonite (API Bentonite) as standard material.The test includes 7 properties divided into 16 parameters namely density,rheology,filtration,solid-liquid content,sand content,pH and methylene blue capacity.The test result shows that 4% Na2CO3 was the best concentration of beneficiation which is able to change ionically the characteristics of Muratara clay,but from the aspect of suitability,the value of each test parameter compared to the standard value shows none of the samples has minimum of 80% suitability,thus technically,it is very small chance for Muratara clay to be able to be used as a substituent material to the standard API Bentonite.
关键词：beneficiated clay;clay of Musi Rawas Utara;API bentonite subtitution
