A method of supplying offshore oil fields with gases for enhanced oil recovery

摘要

The invention relates to a method of supplying gases to offshore oil fields for the purpose of enhanced oil recovery, characterised in that the gas [e.g. carbon dioxide or nitrogen] is compressed on shore to such a level that it is delivered to the production facility of the offshore oil field by high pressure pipeline at a pressure higher than the minimum needed for direct injection into the reservoir to produce a miscible flood. The method may employ a pipeline made up of pipe lengths and mechanical couplings of the type and material coded by API for oil field tubing and casing. The pipeline may have an external diameter of up to about 133 DIVIDED 8" [0.34 m].