Modern oil and gas industry cannot function effectively without a whole range of chemical inhibitors that are used at every stage of production - from well drilling and production to processing and subsequent transportation of raw materials. These chemicals are widely used to solve various problems in the oil and gas industry, including:

Corrosion prevention. Corrosion inhibitors make it possible to slow down the process of metal destruction that occurs as a result of the electrochemical process occurring at the border with the environment. Corrosion inhibitors create a protective barrier between the metal and the environment that causes corrosion.

Elimination and prevention of scale formation. During operation, industrial equipment suffers from gradual build-up of various salts, which disable pumps, destroy the surface of the equipment and clog the inner space of tubing and pipelines. In addition, salts formation is possible in the pay zone, which significantly reduces its permeability. Inhibitors and scale removers prevent and destroy inorganic scale deposits.

Paraffin deposits prevention. During oil production (as well as its collection, preparation and transportation) formation of paraffin deposits can occur. Paraffin accumulates on the inner surface of the pipeline, causing a gradual decrease in oil production and often causing breakdowns in wells and pumping units. Paraffin inhibitors make it possible to effectively deal with paraffin deposits in the tubing.

Reservoir and equipment protection from bacteria. This task is perfectly handled by a special bactericide, which allows you to protect expensive equipment from the destructive effects of various microorganisms (as a result of regular use of the bactericide, the service life of the equipment is significantly increased).

Neutralization of hydrogen sulfide and mercaptans. The presence of hydrogen sulfide in well production causes severe corrosion of oilfield equipment, clogging of injection wells with iron sulfides, and ecological issues. Hydrogen sulfide scavengers effectively remove hydrogen sulfide from water-in-oil emulsions, commercial oil, natural gas condensate, gas and water systems.

Corrosion inhibitors

Corrosion is a very severe problem in oil and gas fields, as many stages of technological processes imply the use of water either permeating from the geological formation or injected through the reservoir pressure maintenance system. Casing pipes, ground pipelines, pressure tanks and storage tanks suffer from internal corrosion increased by the presence of carbon dioxide and hydrogen sulfide, and sometimes from the presence of oxygen in the injected water.

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Scale inhibitors

Even within one day of exploitation, water which passes through the pay zone, the production string and the oilfield equipment may contain hundreds of kilograms of dissolved salts. Pressure fluctuation and temperature variation during the production process promotes solid scale forming.

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Paraffin inhibitors

Forming of asphalt, resin and paraffin deposits leads to well production rate decrease, premature failure of expensive equipment and additional well servicing.

Zirax offers POLYDEX inhibitors, which demonstrate a high dispersion effect on asphaltene, resin and paraffin deposits and improve crude oil rheology.

 

H2S Scavengers

One of the most serious problems for oil and gas producing and refining companies is the contamination of products with hydrogen sulfide and light mercaptans. Hydrogen sulfide is an explosive and toxic substance, poisonous and which can cause serious damage to the respiratory and nervous systems, and in high concentrations it may even cause death. The high corrosiveness of hydrogen can cause failure of equipment and pipelines.

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Pour point depressants

During the production of heavy oils, an increase in pressure in the pipeline equipment may be observed. Strong pressure differences between the tubing base and the wellhead cause deformation of the pumps and constrains oil production. Thus, the production of heavy oils also leads to equipment failure. Periodic cleaning of equipment is necessary due to the formation of paraffin plugs. To reduce the pour point of oils and to improve their rheological properties, some viscosity reducers and pour point depressants are used.

Zirax offers solutions for reducing the pour point of oils and lowers their viscosity with FLOWDIN and Z-Soft pour point depressants.

Drag reducing agents

Drag reducing agents are used at different transportation stages of oil and oil products. Their application reduces the excess pressure at pumping stations, which leads to a decrease in accidents and risks of environmental accidents. Drag reducing agents are also required to improve the energy efficiency of oil pipelines and oil product pipelines, reduce costs when it is necessary to increase the throughput of oil pipelines.

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Emulsifier

Oil treatment in the oilfields is an integral part of the main processes associated with the extraction, gathering and transportation of commercial oil. The quality of the produced crude oil affects both the efficiency and the operational reliability of the main pipeline transport, and the product quality obtained from this oil in oil refineries. At later stages of oil field development, the water cut of produced oil increases substantially and may reach 90% or even more. The presence of mineral salts, resins, paraffin, and mechanical impurities in the produced fluids, which may act as emulsifiers, also contributes to the forming of stable water-oil emulsions. As a result, produced oil does not meet industry quality standard for the product. Repeated cycles of oil treatment lead to additional costs. The solution to this problem is to use highly effective DEMULTRIM demulsifiers.

Water shut-off

The high level of water cut in production wells is one of the key problems in the oil industry. During production from old wells, more water is produced than oil. This leads to oil production costs increases.

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