Matrix acidizing and fracture acidizing are indispensable stimulation technologies for unlocking production potential in carbonate and sandstone reservoirs. Acid fluids like hydrochloric acid and mud acid dissolve formation damage and create unobstructed flow pathways for oil and gas.
Nevertheless, deep and ultra-deep wells with bottom-hole temperatures ranging from 150 °C to 180 °C pose formidable corrosion threats during acidizing operations. Aggressive acid media drastically accelerate the corrosion of carbon steel tubing, casing and downhole tools. Severe corrosion may lead to pipe wall thinning, pitting, hydrogen embrittlement and even pipe rupture, resulting in costly well workovers, production downtime and potential safety hazards. Traditional low-temperature corrosion inhibitors fail to function properly in such harsh thermal environments, as they decompose quickly, lose adsorption capacity or generate harmful sludge that clogs reservoir pores.
High-temperature acid corrosion manifests in three major forms that jeopardize field operations. General corrosion uniformly erodes metal surfaces and shortens the service life of tubular goods. Localized pitting corrosion creates tiny holes that expand rapidly under formation pressure. Worse still, hydrogen atoms produced by acid-metal reactions penetrate steel and trigger hydrogen embrittlement, causing brittle fractures under stress. Additionally, acid fluids mixed with CO₂ and H₂S bring synergistic corrosion, further raising the bar for inhibitor performance. A qualified high-temperature acidizing corrosion inhibitor must feature excellent thermal stability, strong film-forming ability, broad fluid compatibility and zero reservoir damage.
To address these industry pain points, reliable high-temperature corrosion inhibitors have become a core guarantee for safe and efficient acid stimulation. Our company specializes in the R&D, production and supply of premium oilfield acidizing chemicals. Our flagship AC-CI Series Acidizing Corrosion Inhibitors are innovative Mannich base products with outstanding high-temperature tolerance, covering a full application temperature range from 90 °C to 180 °C. Compared with conventional Mannich base inhibitors, this series boasts superior solubility and dispersion in hot acid fluids, stronger inhibition efficiency and more competitive comprehensive costs. For detailed product parameters, formula features and matching application schemes, please visit our official product page: https://www.scall-chemical.com/acidizing-chemicals/.
Beyond corrosion inhibitors, we provide a complete set of supporting acidizing additives to form a fully compatible fluid system. Our AC-VES Viscoelastic Surfactant Diverting Agent delivers excellent self-diversion performance, high temperature resistance and shear resistance, and breaks gel rapidly when contacting crude oil to improve flowback efficiency. The AC-CHJ50 Acid Thickener is a cationic polymer that thickens acid quickly above 120 °C, reduces friction and extends the effective depth of acidizing. Combined with our AC-WSCI2 Oil & Gas Well Corrosion Inhibitor, which targets pipelines corroded by CO₂, H₂S and inorganic salts, our one-stop chemical package adapts to diverse complex well conditions.
All our products undergo strict laboratory tests and field verifications. Our AC-CI inhibitors can form dense and stable protective films on metal surfaces, effectively suppressing general corrosion, pitting and hydrogen embrittlement. They do not produce insoluble sediments, thus protecting reservoir permeability completely. With low effective dosage, our products help clients cut operational costs significantly. We have exported our acidizing chemical series to oilfields across the Middle East, Central Asia, Southeast Asia and Latin America, winning consistent recognition from global operators and oilfield service providers.
In conclusion, high-temperature acidizing is critical for developing deep hydrocarbon resources, and selecting high-performance corrosion inhibitors is the key to controlling operational risks. Whether you need standard products or customized formulations for special sour wells and ultra-high-temperature reservoirs, our professional technical team is ready to provide free compatibility tests, on-site guidance and full after-sales support. Feel free to browse our product page or contact us for samples and tailored solutions to meet your acidizing challenges.
Post time: Jun-08-2026