دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

abbr: sodium acid pyrophosphate.

n: (SAPP) a thinner used in combination with barite, caustic soda, and fresh water to form a plug and seal off a zone of lost circulation.

n: a sequestering agent used to treat cement contamination and a deflocculant for low-temperature water muds.