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Application of "Wbh" Seismic Technology In Dry Hot Rock Exploration In Gonghe Basin
Qinghai Gonghe basin is rich in dry hot rock resources with wide distribution and good lithologic conditions, but the distribution and spatial distribution law of its fault system is not clear, which restricts the experimental development of dry hot rock. The main goal of dry hot rock exploration is to find fracture development areas and identify faults and fracture zones, and cracks and faults can cause changes in seismic wave field. Therefore, dry hot rock exploration research based on "WBH" (wide azimuth, broadband and high density) seismic technology is carried out. Through the low-frequency vibroseis excitation, the " WBH " seismic acquisition received by the wireless node, the targeted processing of amplitude and fidelity preservation, and the fine interpretation of the complex target area, the three-dimensional geological structure model around GH-01 well is established, the formation structure, fracture system, dry hot rock distribution and spatial distribution law around the well area are found out, and the best fracturing interval is given. Research results support the development of dry hot rock.