CASE STUDY StackFRAC system enhances gas production rates 11.5-fold BACKGROUND The Sulige is a giant gas field located in northeast China with estimated reserves reaching 1,100 billion cubic meters. The South Sulige field is located in the Ordos Basin and has two producing formations with low permeability and porosity. He8 is the shallower at 3,550 m (11,650 ft) deep with 0.2 – 0.4 mD permeability and a porosity of 8%. At 3,590 m (11,780 ft)

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