BEIJING, May 14, 2025 /PRNewswire/ -- China Petroleum & Chemical Corporation  (HKG: 0386, "Sinopec") has announced a major shale gas exploration breakthrough of its Project Deep Earth - Sichuan and Chongqing Natural Gas Base, that its Tiebei 1HF well has been tested at a high daily output of 314,500 cubic meters of industrial gas...