鄂西地区非常规油气调查探获工业气流

Core Viewpoint - Chinese geological researchers have achieved a breakthrough in unconventional oil and gas industrial gas flow in the western Hubei region, expanding shale gas exploration from the Sichuan Basin to the western Hubei area, with an additional geological resource of 1329.5 billion cubic meters of shale gas [1] Group 1 - The successful testing of the horizontal well in the Enshi region (Er'en Ye 2HF well) yielded a daily gas production of 50,600 cubic meters, expanding the investigation of the Dalong formation [1] - The vertical well in the Hefeng region (Er'he Ye 3 well) achieved a daily gas production of 10,700 cubic meters in the Qixia formation [1] - The research has enriched the understanding of unconventional gas accumulation theories in complex structural areas, establishing a new accumulation model for mudstone gas [1] Group 2 - An innovative technology for the efficient return of fracturing fluid in low-pressure shale gas has been developed, combining electric submersible pumps, gas lift, foam drainage, and intelligent monitoring [1] - The successful implementation of this technology in the Er'en Ye 2HF well provides critical technical support for the economic and effective development of low-pressure shale gas [1] - The theoretical insights and efficient return technology developed will significantly guide shale gas exploration in complex structural areas, holding substantial theoretical and practical significance [1]