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The Oil & Gas industry is usually divided into three sectors: Upstream, Midstream and Downstream, regardless SEKO has pumps and metering solutions to meet the application need and where appropriate API 674 and 675 conform.
Upstream, commonly known as the exploration and production (E&P) sector can be both onshore or offshore and operates the wells that recover and bring the crude oil and/or raw natural gas to the surface. API 675 pumps are used with chemicals for flow assurance and production, water treatment and hydrate control. Flow assurance chemicals: used for preventing processes that can generate problems like reduced production or even loss of production due to equipment blockage. Typical chemicals are: • Wax inhibitors • Pour point depressants • Asphaltene inhibitors • Scale inhibitors.
Flow production Chemicals serve to extend the lifetime of pipelines and process equipment or to optimize processes by preventing emulsions, bacteria growth and foam formation. Typical chemicals are • Corrosion inhibitors • Biocides • Demulsifiers • Foam inhibitors
Produced Water Treatment Chemical Injection: crude oil and natural gas are often found in water-bearing formations. During the extraction produced water is generated. This water must be treated for disposal and/or re-injected into the well. Typical chemicals are • Biocides • Antifoams • Deoilers • Demulsifiers • Nitrate inhibitors • (Sodium) Hypochlorites.
Hydrate Control Chemical Injection: hydrates are crystalline structures which are formed under certain process conditions in natural gas containing water. Hydrates have an ice-like appearance and are capable of blocking pathways in flow lines and other related gas-handling equipment. Typical chemicals are: • Methanol • MEG
Midstream involves transportation and storage of crude or refined petroleum products, natural gas pipeline networks aggregate gas from natural gas purification plants and delivers it to downstream customers.Drag-reducing agents , or drag-reducing polymers decrease any turbulence in the oil lines. This allows for oil to be pumped through at lower pressures, saving energy and money.
Downstream, sector generally referred to the hydrocarbon processing of petroleum crude oil and the purification of raw natural gas. SEKO pumps provide solutions for the movement of wash water and for feedwater pumps as well additives and odorizers (mercaptane)