Oxygen How it Effects Pipelines?

Oxygen is a contaminant in crude pipelines and can cause issues for production, storage, and transportation in the form of Corrosion which will reduce efficiency of production flow.Internal corrosion is a problem in wet natural gas gathering lines, where dissolved oxygen O2 is one of the more corrosive contaminants in natural gas. Oxygen will react with hydrogen sulfide and moisture to create sulfuric acid, H2so4 is makes high corrosive environment to damage pipelines. Oxygen must be controlled in natural gas pipelines primarily to prevent corrosion. Oxygen may combine with H2O, CO2 and H2S to form carbonic acid or sulfuric acid which is corrosive to carbon steel. Oxygen will reduce the effectiveness of removing carbon dioxide and hydrogen sulfide.Oxygen will contaminate water-based drilling fluids and water used to extract hydrocarbons from reservoirs, which will damage equipment.

Oxygen Scavengers:

Scavenging means eliminating , So Oxygen scavenger is a chemical introduc e n the system to eliminate Oxygen from the system, which is serious problem for equipment and pipeline life also a threat to livelihoods(Workers in the process plant) To prevent these above stated issues, oxygen scavenger chemicals are often added to fluids in the oil and gas industry. These scavengers will react with dissolved oxygen to convert it into a non-corrosive compound. Pipelines and feedstocks for gas plants, refineries, and petrochemical plants are often specified to have oxygen levels of around 9.0 ppm v/v (µL/L) or lower.

Oxygen Scavenger Injection Skid:

Oxygen Scavengerss are also known as oxygen absorbers, antioxidants, and interceptors, oxygen scavengers chemicals are Ferrous oxide: The most commonly used oxygen scavenger Hydrazine: An effective oxygen scavenger, but it is toxic and corrosive Sodium sulfite: An effective oxygen scavenger Ascorbic acid: Used to generate anaerobic environments for microbiology Pyrogallic acid: Used to absorb oxygen in experiments . De-Emulsion Chemicals are manufactured by familier Above chemicals are manufactured and supply by chemical company such as NALCO,Baker Huges. Based on process fluid Property in pipelines, chemical supplying company will estimate how much quantity of Oxygen Scavenger is required and how much dosing is proper to Oxygen Scavenging chemicals. Oxygen Scavenger injection skid is coming with following components such as Tank to handle daily day consumption of chemicals, Pumps to flow chemicals at desired Pipeline pressure which will at the range of 3 barg to 700 barg based on production pipeline pressure. Dosing range will br from 0.2 LPH to 100 LPH or more based on Chemical supplliers recommendation. Piping system which mainly consist of Caliberation Pot , Pulsation dampener , PSV and Flow Meters.