Development of Geophysical Survey Team of Shaanxi Coalfield Geological Bureau

Over the past 30 years, the team has traveled all over the northwest, north China and southwest China, and participated in the construction in Brazil. He has successively undertaken and completed more than 200 seismic electromagnetic methods and surveying and mapping projects such as coal, coalbed methane, hydrology, geothermal, engineering geological survey, environmental geological survey, control survey and aerial photogrammetry, submitted more than 0/00 professional reports on coalfield geophysical exploration, and won provincial and ministerial quality reports and scientific and technological progress awards 12.

In order to develop the "Black Belt" in Weibei, Shaanxi and Jurassic coalfields in northern Shaanxi, seismic exploration has undertaken comprehensive exploration projects such as general survey, detailed investigation, fine investigation and supplementary exploration in Hancheng, Tongchuan, Shenbei, Xinmin and Shen Yu. In recent years, the general surveys of Shenyu Dabaodang (north) and Shen Xi (west) of Jurassic coalfields in northern Shaanxi, Mengjiawan, Qiaozixuan of Carboniferous and Permian coalfields in Weibei, Hancheng coalbed methane exploration, Huanglong Jurassic coalfields, Linyou North, supplementary exploration of Daliuta Minefield (expanded area), seismic exploration of the first and second exploration projects of Jinjie Minefield and three-dimensional seismic exploration of the first mining area were completed in 2004. The 2nd and 3D seismic exploration project in Xiaocaomeitou area has undertaken 6 key projects in Shaanxi Province (desert hilly area in northern Shaanxi), 7 seismic exploration projects in complex mountainous area of Jurassic coalfield in Huanglong, and 7 seismic exploration projects in hilly area of Ningdong coalfield in Ningxia 10, and achieved good geological results, which were well received by Party A and experts. They have advanced technologies such as on-site processing system, quantitative interpretation technology of coal thickness, macro-structural interpretation technology of coal seam (bifurcation and merger), extraction technology of various seismic attribute parameters, forward simulation technology of finite element seismic mathematical model, formation mechanism of coal seam reflection wave and inversion technology of coal seam thickness, seismic exploration technology of loess plateau and mountainous coal and curve seismic exploration technology of complex areas, especially in desert, loess plateau, mountainous areas and other complex terrain areas.

Electromagnetic exploration has mainly completed the electrical exploration of water in Yulin-Yan 'an serious water shortage area, the hydrogeological electrical exploration of Erlintan, a deep water source in Shen Yu mining area, and the boundary exploration of magnetic fire areas in more than 20 coalfields in Jurassic coalfields in northern Shaanxi. In addition, the electrical exploration of water supply hydrogeology survey in Tongchuan New District of Shaanxi Province, the electrical exploration of the middle route of South-to-North Water Transfer Project, the electrical exploration of Jingbian-Hohhot gas pipeline in Changqing Oilfield, and the electrical exploration of Baota landslide group in Yunyang County of Chongqing were completed. In the sixth mining area of Baodian Coal Mine, Yankuang Group, Shandong Province, electrical method combined with three-dimensional seismic exploration was used to detect the hydrogeology of each aquifer and the water abundance and water conductivity of fault geological structures, and to study and explain the distribution range and thickness of clay and sandstone under Quaternary.

Surveying and mapping work has been carried out all over the country. Since the 1970s, in order to develop the "black belt" in Weibei, Shaanxi Province, aerial photogrammetry of 1: 1 10,000 counties in Weibei has been completed successively. In the early 1980s, it moved northward, covering Shen Yu mining area, and undertook the second, third and fourth control surveys successively, covering an area of more than 35,000 square kilometers and topographic maps of various scales. Since the reform and opening up, our team's surveying and mapping work has been guided by the "two substitutions" proposed by the State Bureau of Surveying and Mapping (GPS instead of conventional control survey and digital mapping instead of conventional line drawing), vigorously updating equipment and applying new technologies and methods. We have successively completed the survey of the 250KM pipeline from Jingbian to Hohhot in Changqing Oilfield, the urban planning of Yulin, Ankang and Shannan regions in Tibet 1: 1000 digital aerial survey, the aerial survey of Dongying City in Shandong Province 1/25000, the survey of Guangzhou North Second Ring Road and Guangzhou-Shenzhen Coastal Expressway, and the survey of Mangkang-Chaya Highway in Tibet.

The team adheres to the principle of "grasping with both hands, both hands should be hard", pays attention to both material civilization and spiritual civilization, and makes unremitting efforts to continuously enhance the cohesion and centripetal force of the enterprise. The professional ethics, knowledge and cultural level of employees who are dedicated to their posts, considerate, honest and trustworthy have been improved year by year, forming a "fearless, tenacious and innovative" enterprise spirit. In 2000, it was awarded the title of "Civilized Unit" by Xi 'an Anxin District Committee and Government.

Whether in technical equipment, field construction or data processing and interpretation, the team has strong comprehensive strength in all kinds of geophysical surveying and mapping. Facing the future, our team will continuously improve the ability of scientific and technological innovation, complete all kinds of geophysical surveying and mapping tasks with high quality, high efficiency and safety, and sincerely serve customers.