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Author

Chang-Hua Yang

2 papers indexed here

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Conference Oct 2026

Research on parameter optimization design of CO₂ foam fracturing for deep coal rock gas in Shenfu area

Deep coal seams are the key successor area for large-scale development of coalbed methane in China. However, deep coal reservoirs are characterized by “three highs and two lows”, and conventional hydraulic fracturing and foam fracturing are prone to water-sensitivity damage and poor adaptability, restricting efficient...

Qi Sun, Chang-Hua Yang · 0 citations
Open access Sep 2026

Experimental Study on CO2–Crude Oil Phase Behavior, Miscibility and Threshold Pressure Gradient for CCUS in Ultra-Low Permeability Reservoir

The Chang 8 reservoir in the Baima Middle Block of the Ordos Basin is an ultra-low-permeability reservoir that has faced formation-pressure depletion, a rising water cut, and poor remaining-oil recovery during long-term water-injection development. CO2 flooding in CCUS can simultaneously enhance oil recovery and achiev...

Chun-Ning Gao, Ying-Jie Yuan, Wei Fan et al. · 0 citations

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