Group 1 - Daqing Oilfield Co., Ltd. applied for a patent related to a quantitative determination method and device for abnormal high permeability zones, published as CN120102396A, with an application date of December 2023 [1] - The patent aims to address the lack of quantitative determination methods for abnormal high permeability zones, which affects the accuracy of reservoir quality predictions and oilfield development outcomes [1] - The method involves comparing porosity and permeability under normal compaction conditions with current values to classify the type of sedimentary or diagenetic influence on reservoir evolution [1] Group 2 - Daqing Oilfield Co., Ltd. was established in 2000, primarily engaged in oil and gas exploration, with a registered capital of 4,750 million RMB [2] - The company has invested in 28 enterprises, participated in 5,000 bidding projects, and holds 4,426 patents along with 7,335 administrative licenses [2] - China National Petroleum Corporation (CNPC), established in 1999, focuses on gas production and supply, with a registered capital of 18,302 million RMB [2] - CNPC has invested in 1,245 enterprises, participated in 496 bidding projects, and holds 5,000 patents along with 163 administrative licenses [2]