High-fidelity sampling system for layered deep subsurface fluids


Product Introduction
The deep underground fluid stratified true sampling system is mainly applicable to the environmental and safety monitoring of various deep underground engineering projects, such as CO2 geological storage, landfill, underground mining, nuclear waste disposal, and groundwater monitoring projects, for stratified sampling of gas and water in deep strata and long-term monitoring of temperature and pressure. The sampling system adopts a multi-layer UI-type structure to achieve independent stratified sampling of gas and liquid in multiple strata, especially suitable for gas-liquid two-phase sampling and real-time temperature and pressure monitoring in ultra-low permeability strata, with minimal disturbance to the strata during the sampling process.

System Composition
Isolator module, temperature and pressure monitoring module, pipeline module, sampling control module, data acquisition and transmission module, etc.
Technical Parameters
Suitable for stratified sampling of gas and water in deep strata and long-term monitoring of temperature and pressure, realizing remote monitoring, control, and data transmission
Depth range > 1000 m
Maximum sampling volume > 100 mL
Minimum sampling interval < 6 hours (micro-sampling improves time interval)
Maximum withstand pressure 10 MPa
Maximum withstand temperature 80 ℃
Application Cases
Applied to Shenhua CCUS, Shanxi Changzi County ECBM, Shanxi Jincheng Shizhuangnan ECBM, and other CO2 storage and utilization sites, supporting the development of national engineering demonstration projects.
Representative Achievements
Shenhua 300,000-ton CO2 saline water layer storage demonstration project;
Ministry of Science and Technology Twelfth Five-Year Plan Science and Technology Support Project - Shanxi Changzi County ECBM Project;
Ministry of Science and Technology Thirteenth Five-Year Plan Key Research and Development Project - CO2-driven coalbed methane technology research and development project.

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