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2022, vol. 63, br. 2, str. 128-134
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Korišćenje autohtonih sredstava za kontrolu pH vrednosti za pripremu tečnosti za bušenje
Utilization of indigenous pH control agents for drilling fluid preparation
Federal University of Technology Owerri, Department of Petroleum Engineering, Owerri, Nigeria
e-adresa: stanleyekwueme@yahoo.com
Sažetak
Vrednost pH tečnosti za bušenje je važan faktor u operacijama bušenja i proizvodnje. Ako je pH kiseo, to e uzrokovati korodiranje metalnih delova kao što su buša a kolona i ku išta. Tako e, bi e potrebno mno o više aditiva da bi se posti la prava reološka svojstva. ovom radu je proučavana podobnost a ro otpada kao što su vo na vlakna uljane palme, kore zrele i nezrele kore platana kao sredstva za kontrolu pH tečnosti za bušenje. aterijali su dobijeni iz lokalnih izvora i podvr nuti sušenju, spaljivanju i filtriranju. Dobijeni filtrati su koriš eni za tretiranje isplake za bušenje na bazi vode. tvr eno je da rastvor vo nih vlakana uljane palme podiže pH na 8, dok rastvori kore zrele i nezrele kore platana podižu pH vrednosti na 10. Laboratorijski test na sadržaj natrijuma i kalijuma na lokalno pripremljenim aditivima za kontrolu pH pokazao je značajno ve e koncentracije u rastvoru kore nezrele bokvice, što a čini najpo odnijim kao sredstvo za kontrolu pH u pore enju sa ostalima.
Abstract
Drilling fluid pH is an important factor in drilling and production operations. If the pH is acidic, this will cause metallic parts such as the drilling string and casings to corrode. Also, much more additives will be needed to achieve the right rheological properties. In this work, the suitability of agro waste such as oil palm fruit fibre, ripe plantain peels and unripe plantain peels as drilling fluid pH control agents was studied. The materials were gotten from local sources and subjected to drying, burning and filtration. The filtrates obtained were used to treat water based drilling mud. It was found that the oil palm fruit fibre solution raised the pH to 8, while the ripe and unripe plantain peels solutions raised the pH values to 10 respectively. Laboratory test for sodium and potassium contents on the locally prepared pH control additives showed significantly higher concentrations in the unripe plantain peel solution, thereby making it most suitable as a pH control agent compared to the others.
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