Group 1 - The construction of the Yunnan Dali to Ruili Railway's Gaoligong Mountain Tunnel is ongoing, with over 1,000 workers on site during the Spring Festival, marking the 12th year of construction due to complex geological conditions [1] - The tunnel features China's deepest shaft at 765 meters, with improvements in safety and efficiency, including the installation of a simple elevator for material transport [1] - The excavation process has advanced significantly, with over 70% of the tunnel completed by the Spring Festival of 2026, which will drastically improve transportation for local communities [7] Group 2 - A mechanical cooling system has been installed in the tunnel to maintain a working temperature of 28°C for workers, enhancing their working conditions [5] - The hard rock tunneling machine designed specifically for the Gaoligong Mountain Tunnel faced operational challenges due to extreme geological conditions, but a new tunneling method was identified after expert consultations [5] - In the Tarim Basin, over a thousand oil exploration workers are actively collecting geological data for a high-precision 3D exploration project, demonstrating the commitment to advancing engineering projects in challenging environments [8] Group 3 - In the Bohai Bay area, 47 employees are working on key projects to enhance the thermal energy supply capabilities of China's largest offshore heavy oil thermal recovery platform, despite harsh weather conditions [9]

Core Viewpoint - The article highlights the advancements and challenges in the 3D geological exploration project undertaken by China National Petroleum Corporation's Tarim Oilfield, emphasizing the use of technology and the dedication of workers in harsh mountainous conditions [2][10]. Group 1: Project Overview - The Puxi 3D project, located in the Kunlun Mountains, started in March this year and aims to utilize seismic data to identify underground oil and gas reserves [2]. - The project area has a maximum elevation of 3,200 meters and a height difference of over 700 meters [2]. Group 2: Workforce and Operations - The project involves over 2,400 workers from the 2170 team, who are engaged in various tasks such as surveying, drilling, and data collection in challenging terrains [5]. - Worker Wang Zijian has 13 years of experience in geological exploration and has participated in over 20 projects, spending six to seven months in the field each year [4]. Group 3: Technological Innovations - To ensure the quality of geological data, the project requires well locations to be spaced 50 meters apart, with a positional error of no more than one meter [7]. - The team has improved mountain drilling equipment to reduce weight, facilitating easier transport across rugged terrain [7]. - The project plans to collect data from 69,120 seismic shots, necessitating the drilling of over 69,000 wells, which presents significant logistical challenges [8]. Group 4: Use of Aerial Technology - The introduction of helicopters and drones has significantly reduced the physical strain on workers and improved operational efficiency, with helicopters used for heavy equipment and drones for lighter items [10]. - Drone operator Fang Qinghai faces new challenges in mountainous operations, requiring him to climb to high altitudes for effective drone control [12]. Group 5: Commitment to Challenges - Despite the high altitude and severe weather conditions, the determination of the exploration team remains strong, supported by new technological equipment [13].

Group 1 - The article highlights the dedication of young workers in the energy sector, particularly in the Tarim Oilfield project in the Kunlun Mountains, contributing to national energy security despite challenging conditions [2][9] - The Tarim Oilfield project is located in a mountainous area with over 98% of the work site being mountainous terrain, featuring a maximum elevation of 3200 meters and a height difference of over 700 meters [2] - The "Youth League Train" operates in the Alxa League desert, symbolizing the spirit of resilience and commitment among railway workers, particularly in transporting coal from the region [9][12] Group 2 - Zhang Liang, a skilled welder from the Liaohe Oilfield, has achieved significant recognition, including the "China Youth May Fourth Medal" and the "National May Day Labor Medal," showcasing the importance of skill development in the oil and gas industry [16][17] - Zhang has led over 220 technical challenges and innovations, resulting in 27 national patents and multiple publications, emphasizing the role of technical expertise in enhancing operational safety and efficiency [19][20] - The article also mentions a female team of railway flaw detection workers, known as "rail doctors," who play a crucial role in ensuring the safety of railway operations through meticulous inspections [22]