Nitrogen/carbon dioxide combination fracture treatment

Earth boring – well treating – and oil field chemistry – Earth boring – Contains intended gaseous phase at entry into wellbore

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507202, 507922, 166280, C09K 708, E21B 4326

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active

058830537

ABSTRACT:
There is provided an improved fluid for fracturing an underground formation penetrated by a well bore comprising a mixture of a liquified gas and a gas.

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Report (1979) ORNL/TM-6270 from Energy Res. Abstract 4 (10) As Abstracted by Chem Abstracts 91: 130759.
"Gas Frac--A New Stimulation Technique Using Liquid Gases," R.E. Hurst, Society of Petroleum Engineers of AIME, No. SPE 3837 (1972).

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