دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a South American tree that is a source of tannin extract, which was extensively used as a thinning agent for drilling mud, but is seldom used today.

n: A thinning agent used to reduce viscosity or prevent flocculation;incorrectly called a dispersant. Most deflocculants are low-molecular weight anionic polymers that neutralize positive charges on clay edges. Examples include polyphosphates, lignosulfon

n: a special chemical or combination of chemicals that, when added to a drilling mud, reduces its viscosity.

n: A thinning agent used to reduce viscosity or prevent flocculation;incorrectly called a dispersant. Most deflocculants are low-molecular weight anionic polymers that neutralize positive charges on clay edges. Examples include polyphosphates, lignosulfon