Acquisition and interpretation of horizontal hole electronic Cores based on panoramic imaging technology
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Institute of Exploration Technology,CAGS,Chengdu Sichuan

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    Abstract:

    The Tashdaban North Lithium Mining Area, located in the Kunlun-Altun Mountains, features complex geological structures and a high-altitude deeply incised terrain with dramatic elevation changes, posing significant challenges for drilling equipment relocation. Given the steeply dipping occurrence of ore layers in this region, horizontal and near-horizontal directional drilling techniques have been prioritized to align with the "green exploration" principle, effectively minimizing equipment relocation while preserving the ecological environment. To resolve critical issues in core drilling – including discontinuous coring in fractured strata, human errors during core logging, and consequent inaccuracies in acquiring key geological parameters such as formation dip, fracture width, and weak intercalations – the independently developed multi-parameter wireless logging system has been implemented. This innovative system achieves dual technological breakthroughs: establishing a computational methodology for structural plane imaging in horizontal borehole panoramas, and integrating wireless data storage with drill-pipe conveyance technology to overcome instrument deployment limitations in deep horizontal holes. By capturing high-resolution, continuous borehole wall images during operations, the system generates "digital cores" through advanced image processing, enabling direct visualization of lithology, fracture networks, weak interlayers, karst features, and stratum thickness. These capabilities facilitate precise quantification of Stratigraphic structural plane parameters, thereby advancing geological refinement, optimizing drilling quality, and driving digital transformation in mineral exploration. The technology improves data accuracy while reducing environmental footprint, exemplifying a paradigm of eco-conscious technological innovation in complex mining environments.

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History
  • Received:March 07,2025
  • Revised:May 16,2025
  • Adopted:May 19,2025
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