Product
Acidizing

Acidizing is a technique employed in the oilfield to enhance well productivity by stimulating reservoir formations. Various acidizing products are utilized in this process to optimize performance and ensure the longevity of the wellbore. Gelling agents are commonly employed to thicken the acid solution, enhancing its viscosity and ensuring deeper penetration into the formation. Corrosion inhibitors play a vital role in mitigating metal corrosion within the wellbore, safeguarding equipment and infrastructure from degradation. Corrosion intensifiers are utilized to enhance the corrosion inhibitors’ effective temperature range, thereby increasing their effectiveness in protecting downhole hardware.

Non-emulsifiers are essential additives utilized to prevent the formation of undesirable emulsions during acidizing treatments, ensuring efficient fluid recovery and well cleanup. Iron control agents are deployed to mitigate the adverse effects of iron precipitation, which can impede fluid flow and hinder well performance. Lastly, paraffin and asphaltene solvents are utilized to dissolve and remove organic deposits that may impede production, ensuring uninterrupted flow and maximizing well productivity. Overall, the judicious selection and application of these acidizing products are instrumental in optimizing well performance and maximizing hydrocarbon recovery in oilfield operations.

  • Gelling Agents
  • Corrosion Inhibitors
  • Iron Control
  • Non-Emulsifiers
  • Scale Inhibitors
  • Diversion
  • Solvents - Paraffin / Asphaltene
  • Sludge
  • Gelling Agents

    Acid gelling agents are Polyacrylamide-based polymers which form stable gels in acidic environments, controlling fluid viscosity and enhancing formation contact efficiency. Viscosity is adjustable via factors like polymer concentration and crosslinking, which strengthens the gel structure for harsh conditions like elevated temperatures. Sunita provides premium-grade acid gelling agents and crosslinkers for common acids like HCl, ensuring maximum efficiency and reliability in challenging environments.

  • Corrosion Inhibitors

    Corrosion inhibitors are vital for protecting oil and gas infrastructure during acidizing operations. They form a protective barrier on metal surfaces, preventing corrosion by acidic environments. Specialized inhibitors withstand high temperatures in deep reservoirs, utilizing phosphonate-based or nitrogen-containing compounds. For low temperatures, inhibitors incorporate alkylamine-based or organic acid derivatives, offering reliable corrosion protection. Testing is necessary to assess effectiveness when acid mixtures contact specific metals.

  • Iron Control

    Iron, often present in various forms in reservoir fluids and water used in oil production processes, can lead to issues such as corrosion, scaling, and catalyst poisoning. These agents typically contain organic molecules with chelating groups that form stable complexes with iron ions, effectively inhibiting their reactivity and reducing their ability to cause harm. By mitigating iron-related problems, these agents help maintain the integrity and efficiency of production equipment, ensuring smooth and reliable oilfield operations.

  • Non-Emulsifiers

    Non-emulsifier products are scientifically developed formulations containing blended nonionic surfactants. These formulations are strategically added to stimulation fluids utilized in oilfield operations to mitigate the tendency of fluids to form emulsions with residual oils present in the formation. Particularly in water-based fracturing fluids, there is a propensity for emulsion formation with residual oil during the stimulation treatment or post-fracturing. By incorporating non-emulsifiers into stimulation fluids, their primary objective is to counteract this emulsion formation directly within the well, thus preventing any hindrance to production once the well is operational. Furthermore, non-emulsifiers serve to expedite the separation process between water and oil within the initial flow-back fluid, thereby enhancing operational efficiency.

  • Scale Inhibitors

    Scale inhibitors disrupt the crystallization process of scale-forming ions like calcium, magnesium, and barium, preventing them from precipitating onto surfaces. Typically injected at low concentrations into the production stream or during stimulation treatments, they disperse and adsorb onto surfaces, forming a protective barrier. This inhibits scale crystal nucleation and growth, keeping equipment and pipelines free from buildup. Sunita provides high-quality scale inhibitors tailored to diverse oilfield needs.

  • Diversion

    Diversion refers to techniques used during well completion to intentionally redirect fluids (like stimulation fluids during fracturing) away from high-permeability zones or already stimulated areas. In this way, the treatment reaches under-stimulated parts of the reservoir by temporarily plugging or blocking the high-flow paths which maximizes production efficiency across the entire wellbore.

    SHI USA is a leader in the use of diversion techniques during the well completion process. Our innovative approach and expertise in deploying advanced diverter technologies have made us leaders in this industry.

  • Solvents - Paraffin / Asphaltene

    Paraffin inhibitors and asphaltene inhibitors are essential components in oilfield applications, each serving distinct yet crucial functions. Paraffin inhibitors are designed to prevent the deposition of paraffin wax, a common issue in oil production where the wax can accumulate and restrict flow within pipelines and equipment. Paraffin inhibitors typically consist of organic compounds such as long-chain hydrocarbons or polymers that interact with the wax molecules, preventing them from clumping together and forming deposits. Asphaltene inhibitors, on the other hand, target the prevention of asphaltene precipitation, which can lead to blockages in the reservoir and production equipment. These inhibitors often contain dispersants or solvents that keep the asphaltene particles dispersed in the oil, inhibiting their agglomeration. Sunita offers a range of high-quality paraffin and asphaltene inhibitors tailored to meet the specific needs of oilfield operations, ensuring efficient and uninterrupted production processes.

  • Sludge

    Anti-sludge agents are specially formulated chemicals designed to inhibit the agglomeration and settling of these solids, keeping them dispersed within the oil. Common chemistries of anti-sludge agents include surfactants, polymers, and dispersants, which work by modifying the surface properties of the solid particles, preventing them from sticking together and forming sludge. By maintaining the stability of oil systems and preventing sludge formation, these agents ensure smooth and uninterrupted oil production processes.

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