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约１２０ × １０８ ｂｂｌ原始石油地质储量（ＯＯＩＰ）的油藏经过１５年的一次采油只生产出１０×１０８ｂｂｌ油，但压力却从１１５００ｉ ｌｂ／ｉｎ２降低到４５００ ｌｂ／ｉｎ２，并且迅速接近３７５０ ｌｂ／ ｉｎ２的泡点压力。高压注氮气混相驱油法已被选为底伏为水层、含轻油、天然裂缝、厚的碳酸盐岩油藏提高采收率（ＥＯＲ）的工艺。目的在于保持油藏压力和提高最终采收率。
About 120 × 108 bbl OOIP reservoirs produced only 10 × 108bbl of oil after 15 years of primary production, but the pressure was reduced from 11500i lb / in2 to 4500 lb / in2 and rapidly approached 3750 lb / in2 bubble point pressure. The high-pressure nitrogen injection gas miscible flooding has been selected as the process of increasing the oil recovery (EOR) of a carbonate reservoir with light oil, natural fractures and thick carbonate reservoirs. The goal is to maintain reservoir pressure and increase ultimate recovery.