Acidizing Additives

Selective stimulation operations

A major challenge in acidizing treatments is to achieve optimum coverage of the reservoir interval, particularly in long wellbore sections. The most common method is to use [...]

Gelling agents

Gelled acids can be used in acidizing treatments for carbonate reservoirs for two reasons; to increase the wormholing efficiency of the fluid, and also as a diverting agent. [...]

Emulsifiers

The objective of acidizing treatments is to create new pathways and enhance the permeability to improve the connectivity of the reservoir to the wellbore, increasing [...]

Non-emulsifiers

In acidizing treatments, the mixing of acids and hydrocarbons at high pressures and/or rates can cause downhole emulsions, which can also be stabilized by the presence of [...]

Anti-sludge additives

Sludges are stable emulsions with high viscosity, and form when crude oils encounter strong mineral acids such as hydrochloric acids, specifically the Asphaltene components [...]

Iron control additives

Iron from the wellbore or iron-containing minerals in the formation can react with acid systems, and acid spending can cause the precipitation of ferric hydroxide, formed [...]

Corrosion inhibitors

One of the most important acid additives are corrosion inhibitors. A corrosion inhibitor is a chemical that slows the attack of acid corrosion on drill pipe, tubing or any [...]