Group 1 - Daqing Oilfield Co., Ltd. applied for a patent titled "A Method and Device for Evaluating Thin Cloud Rock Reservoir Horizontal Well Sections," published as CN120195729A, with an application date of December 2023 [1] - The patent aims to improve the accuracy of evaluating thin cloud rock reservoir horizontal well sections, addressing issues in existing technologies that fail to reflect vertical variations in reservoir parameters along the well trajectory [1] - The evaluation method involves obtaining basic data and post-stack seismic data, using waveform inversion methods, and establishing a high-resolution reservoir model based on the inversion results [1] Group 2 - Daqing Oilfield Co., Ltd. was established in 2000, located in Daqing City, with a registered capital of 4,750 million RMB [2] - The company has invested in 34 enterprises, participated in 5,000 bidding projects, and holds 4,316 patents along with 7,336 administrative licenses [2] - China National Petroleum Corporation (CNPC) was founded in 1999, based in Beijing, with a registered capital of 18,302 million RMB [2] - CNPC has invested in 1,283 enterprises, participated in 496 bidding projects, and possesses 5,000 patents along with 164 administrative licenses [2]