Key Technologies for High-Precision 3D Seismic Acquisition in the “Double Complex” Area of Jiangzhuang Coal Mine, Shandong Province, China
摘要
The Jiangzhuang Coal Mine is situated within the Jining formation area of the Luxi Formation division in North China, where coal-bearing strata are developed. The underground conditions in this region are notably complex. There is significant variability in the depth of the coal seam, and the coal reservoir tends to be thin. Additionally, numerous small faults exist that interconnect with one another, which imposes stringent requirements on both longitudinal and transverse resolution of seismic data. Moreover, the intricate surface conditions present a myriad of challenges for seismic data acquisition due to various obstacles and multiple no-excitation zones. To tackle the “dual complexity” associated with surface and subsurface exploration at Jiangzhuang Coal Mine, several key technologies have been implemented. These include a small element wide azimuth high-density three-dimensional seismic observation system, geometer body coupling reception techniques, and multi-domain complementary field implementation strategies aimed at acquiring high-quality seismic data. These advancements have yielded favorable geological results and facilitated a significant breakthrough in mineral development efforts at Jiangzhuang Coal Mine.