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Industrial Research And Consultancy Centre
Patent
Method and System for Determining Gas Conductivity of Soils (GASCOM)
Abstract

Gas conductivity in soils is a critical parameter for applications like methane extraction from hydrate-bearing sediments and environmental engineering projects. In-situ measurements are often unreliable due to gas escape through preferential pathways. To address this, a novel device, GasCoM (Gas Conductivity Measurement Device), has been developed. It facilitates the determination of soil gas conductivity under controlled laboratory conditions by simulating various compaction states (dry density and moisture content). The device comprises a container, outer jackets, a plunger with a loading pad, and gas inlet/outlet connections. This setup allows professionals in natural gas exploration and environmental engineering to accurately assess soil gas conductivity for applications such as landfill covers, nuclear waste repositories, and carbon dioxide sequestration.

Problem Statement

Current methods for measuring gas conductivity in soils, crucial for methane extraction and environmental applications, face significant challenges. In-situ measurements often yield unreliable data due to gas leakage through preferential pathways, complicating accurate assessment. Existing instruments lack the capability to simulate varied soil compaction states under controlled conditions, hindering precise measurements essential for natural gas exploration and geo-environmental engineering.

Uniqueness of the Solution
  • Controlled Laboratory Conditions: Enables precise measurement of soil gas conductivity under controlled settings, overcoming issues with in-situ measurements. 
  • Versatile Compaction Simulation: Capable of simulating different soil compaction states (dry density, moisture content), crucial for understanding gas conductivity variations. 
  • Integrated Measurement System: Includes gas inlets, outlets, and volume measuring devices for accurate and streamlined data collection. 
  • Wide Applicability: Suitable for natural gas exploration, environmental monitoring, and carbon sequestration efforts across various sectors.
Prototype Details

The GasCoM prototype is designed as a compact laboratory device for measuring soil gas conductivity under controlled conditions. The device operates with standard gas inlet pressures and includes valves and a volume measuring device for accurate gas volume assessments. Its unique feature lies in simulating various soil compaction states (dry density and moisture content), offering precise insights crucial for methane extraction, environmental engineering, and geological assessments. This prototype's design emphasizes ease of use, reliability, and versatility across different environmental and industrial applications, making it an essential tool for professionals in the field.

Current Status of Technology

The gas permeability measurement device, GasCoM has been fully developed, fabricated, and validated. The device has been utilized for several studies that includes Carbon dioxide sequestration, Green Hydrogen Extraction, Methane Gas Hydrate studies etc. The device has been observed to be robust, and repeatability of results has also been ensured.

Technology readiness level

9

Societal Impact

This initiative contributes to environmental protection by reducing greenhouse gas emissions through improved methane extraction and landfill management. It also enhances public health by ensuring safer conditions near nuclear waste sites through accurate assessment of soil contamination risks. In terms of energy efficiency, it supports clean energy goals by optimizing both methane extraction and carbon dioxide sequestration. Additionally, it fosters technological innovation by driving advancements in environmental engineering and geo-environmental assessments.

Applications or Domain
  • Natural Gas Exploration: Optimizing methane extraction from hydrate-bearing sediments. 
  • Landfill Management: Monitoring gas emissions and optimizing landfill covers for better environmental control. 
  • Nuclear Waste Repositories: Evaluating soil conditions to ensure safe containment and management of radioactive waste. 
  • Geotechnical Engineering: Understanding soil behavior and properties for infrastructure and construction projects.

Geography of IP

Type of IP

Application Number

201621028073

Filing Date
Grant Number

502407

Grant Date
Assignee(s)
Indian Institute of Technology Bombay
**This IP is owned by IIT Bombay**