Air Separation for Nitrogen Injection: This general flow diagram shows usual process blocks for nitrogen injection. Air Products has experience building air separation plants in remote locations where public utilities do not exist, requiring an independent "utility island." Air Products can provide air separation plants and utility systems.
This general flow diagram shows the nitrogen recovery unit (NRU) process blocks that can be modified to best meet customers' needs. The plant makes your hydrocarbons salable. Removed nitrogen can be vented or recycled for enhanced oil recovery. Air Products has the NRU to meet your needs.
In fields containing oil and gas, nitrogen injection maintains well pressure which allows for the immediate sale of natural gas, natural gas liquids (NGL), and crude oil. Some projects need the capability to separate the nitrogen from the field gas for Btu upgrading; nitrogen rejection units serve this purpose.
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