O'Reilly logo

Petroleum Production Systems, Second Edition by A. Daniel Hill, Christine Ehlig-Economides, Ding Zhu, Michael J. Economides

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 14. Matrix Acidizing: Acid/Rock Interactions

14.1. Introduction

Matrix acidizing is a well stimulation technique in which an acid solution is injected into the formation in order to dissolve some of the minerals present, and hence recover or increase the permeability in the near-wellbore vicinity. The most common acids used are hydrochloric acid (HCl), used primarily to dissolve carbonate minerals, and mixtures of hydrofluoric and hydrochloric acids (HF/HCl), for attacking silicate minerals such as clays and feldspars. Because traditional drilling fluid (drilling “mud”) was a suspension of bentonite clay, the mixture HF/HCl, effective in dissolving bentonite particles, has been known in the vernacular as mud acid. Other acids, particularly ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required