一种三维大尺寸岩心的微纳孔喉定制制备方法
By constructing a three-dimensional core model, slicing, and using a multi-material DLP forming process, combined with a pore throat volume expansion algorithm and electrochemical deposition, the challenges of large-size forming of three-dimensional cores and customization of micro-nano pore throats were solved, achieving high-precision micro-nano pore throat preparation, which is suitable for low-permeability cores such as shale and sandstone.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2024-01-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to simultaneously achieve large-size forming and reproducible, customizable, and efficient fabrication of micro- and nano-pore throats in three-dimensional rock cores, especially for low-permeability rock cores such as shale, sandstone, and carbonate.
By constructing a three-dimensional core model, slicing and multi-material processing, and combining a pore throat volume expansion algorithm and Boolean operations to expand the micro-nano pore throat size, and using multi-material DLP forming technology and methods such as electrochemical deposition and polymer chain polymerization, layer-by-layer solidification and customized pore shrinkage are achieved to realize the preparation of micro-nano pore throats in three-dimensional large-size cores.
It has achieved the customized fabrication of micro-nano pore throats in three-dimensional large-size rock cores, with high cross-scale forming accuracy, diverse material systems, strong adaptability of pore shrinkage schemes, and reliable flow field simulation results, and is suitable for the customized manufacturing of complex pore throat structures.
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Figure CN117848805B_ABST