Importance of Biocide in the Oil and Gas Industry
Various types of chemicals are used by the oil and gas industry to maintain the production flow of the wellbore. Some top chemicals are biocides, oxygen scavengers, corrosion inhibitors, and H2S scavengers. Biocides are one of the most common chemicals that are outsourced by many oil and gas companies.
What is Biocide?
Biocides are used in the offshore oil and gas industry to maximize production by protecting assets through the inhibition of microbial induced biofilm and corrosion. An oil and gas company is careful when using this chemical. It is used in small amounts to control the growth of bacteria and other harmful organisms in the wellbore. Protection of equipment and an increase in the operational efficiency by controlling microbially induced corrosion are necessary. Biocides effectively treat bacterial metabolisms, such as acids, scales, slime, and poisonous gases. Biocides are also useful to protect the top structure from rusting.
Biocides work effectively to treat pipelines from bacterial growth. Biocides are recommended to use during hydrostatic testing to prevent the internal equipment from corrosion. During hydraulic fracture, the chemical is used in small quantities while water is injected to the wellbore.
Types of Bacteria and Their Effects
Different types of bacteria are found in the oil and gas production well and equipment. Biocides work effectively to reduce the growth of common types of bacteria.
Sulfate-Reducing Bacteria – The common bacteria is hydrogen sulfide that can cause corrosion, reservoir souring, disposition of scales, and risks for one’s health.
Acid-producing bacteria – This type has two common metabolisms such as organic acids and inorganic acid.