دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the change in pulsed neutron capture created by acidizing a carbonate. Acidizing increases interconnected porosity and strands chlorides and other ions in the rock.

use of a mineral acid (typically HCl or HCl/HF) or an organic acid (typically acetic or formic) to remove damage or stimulate the permeability of a formation.

various chemical treatments including acidizing.

a material that forces acid to enter another zone by having a higher viscosity or building a filter cake.

creating a fracture in a carbonate and etching the face of the fracture to preserve flow capacity down the fracture.

n: a procedure by which acid is forced into a formation under pressure high enough to cause the formation to crack. The acid acts on certain kinds of rocks, usually carbonates, to increase the permeability of the formation. Also called acid fracturing. Compare matrix acidizing.

n: an acid that has been chemically treated before the acidizing or acid fracture of a well to lessen its corrosive effect on the tubular goods and yet maintain its effectiveness. See acid fracture, acidize.

n: an acidizing treatment using low or no pressure to improve the permeability of a formation with fracturing it. See wellbore soak. Compare fracture acidizing.

acidizing a rock below the fracturing pressure, either to reduce the formation damage or to improve the initial permeability.

adj: descriptive of a substance whose strength or merit has been exhausted in a process. For example, after a well has been acidized, any acid that remains in the well is said to be a spent acid because its strength has been used up in the acidizing process.