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Why a Complete VES Diverting Acid System Matters

In modern carbonate matrix acidizing, successful stimulation depends on more than simply selecting a high-quality diverting agent. A truly effective VES Diverting Acid System requires excellent compatibility between the Viscoelastic Surfactant (VES) and the Acidizing Corrosion Inhibitor.

Many acid stimulation failures are not caused by insufficient diversion capability, but by poor compatibility among additives, resulting in viscosity loss, unstable acid systems, excessive corrosion, or reduced treatment efficiency.

For this reason, operators are increasingly seeking integrated diverting acid systems rather than purchasing individual chemicals separately.

The Role of Viscoelastic Surfactant in Acid Diversion

A Viscoelastic Surfactant (VES) temporarily increases the viscosity of the acid solution, allowing the acid to divert from high-permeability zones into previously untreated intervals.

Unlike polymer-based diverting systems, VES technology creates reversible micellar structures that break naturally after stimulation, reducing formation damage and simplifying well cleanup.

A properly designed VES system provides:

• Temporary fluid diversion
• Improved acid placement
• Better reservoir coverage
• Low formation damage
• Excellent cleanup performance

Why Corrosion Inhibitors Are Equally Important

During acidizing, hydrochloric acid can aggressively attack tubing, casing, coiled tubing, pumps, and other downhole equipment.

A high-performance Acidizing Corrosion Inhibitor protects metal surfaces while maintaining compatibility with the VES diverting system.

Poor compatibility between corrosion inhibitors and surfactants may cause:

• Reduced VES viscosity
• Micelle instability
• Phase separation
• Increased corrosion rate
• Lower diversion efficiency

Selecting corrosion inhibitors specifically designed for VES acid systems is therefore essential.

The Importance of Additive Compatibility

The performance of a diverting acid system depends on how well all additives work together.

Key compatibility evaluations include:

• VES and corrosion inhibitor compatibility
• Iron control agent compatibility
• Non-emulsifier compatibility
• Clay stabilizer compatibility
• Mutual solvent compatibility
• Acid stability
• High-temperature stability

Proper laboratory compatibility testing helps ensure stable viscosity and consistent field performance.

Integrated Solution from Sichuan All-Chem Chemical Co., Ltd.

To simplify formulation design and improve field performance, Sichuan All-Chem Chemical Co., Ltd. supplies a complete package of stimulation chemicals for VES diverting acid systems.

AC-VES – Viscoelastic Surfactant Diverting Agent

AC-VES provides:

• Excellent temporary diversion
• High acid compatibility
• Reliable viscosity development
• Easy flowback
• Low formation damage

Product Page

https://www.scall-chemical.com/viscoelastic-surfactant-diverting-agent-ac-ves-2-product/

AC-CI Series – Acidizing Corrosion Inhibitor

The AC-CI Series is specifically developed for hydrochloric acid stimulation and offers:

• Excellent corrosion protection
• High-temperature performance
• Compatibility with acid additives
• Stable performance in various acid systems
• Reduced equipment corrosion

Product Page

https://www.scall-chemical.com/acidizing-corrosion-inhibitor-ac-ci-series-products-product/

Benefits of Using a Matched Diverting Acid Package

Compared with selecting chemicals individually, an integrated diverting acid package offers significant operational advantages:

• Simplified formulation development
• Improved additive compatibility
• More stable field performance
• Reduced laboratory optimization time
• Lower operational risk
• Better treatment consistency

This approach is increasingly preferred by oilfield service companies and operators seeking reliable acid stimulation performance.

Typical Applications

Integrated VES diverting acid systems are widely used in:

• Carbonate matrix acidizing
• High-temperature acidizing
• Coiled tubing acidizing
• Multi-stage stimulation
• Horizontal wells
• Naturally fractured reservoirs
• Tight carbonate formations

Why Choose Sichuan All-Chem?

Sichuan All-Chem Chemical Co., Ltd. specializes in oilfield stimulation chemicals, providing integrated solutions for hydraulic fracturing and acidizing applications.

Our product portfolio includes:

• Acidizing Corrosion Inhibitors
• Viscoelastic Surfactant Diverting Agents
• Organic Zirconium Crosslinkers
• Organic Borate Crosslinkers
• Gel Breakers
• Friction Reducers
• Clay Stabilizers
• Iron Control Agents

We support customers with customized formulations, laboratory technical support, and reliable product quality to help optimize stimulation performance under different reservoir conditions.

Frequently Asked Questions

Can any corrosion inhibitor be used with a VES diverting system?

Not necessarily. Compatibility testing is strongly recommended because some corrosion inhibitors may interfere with the viscoelastic surfactant structure, affecting viscosity development and diversion performance.

Why is additive compatibility important in diverting acid systems?

Good compatibility ensures stable viscosity, minimizes corrosion, and prevents phase separation or performance loss during acidizing operations.

Does Sichuan All-Chem provide complete diverting acid solutions?

Yes. We offer AC-VES Viscoelastic Surfactant Diverting Agent together with the AC-CI Series Acidizing Corrosion Inhibitor, as well as other stimulation additives, allowing customers to develop integrated diverting acid systems tailored to specific reservoir conditions.