Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras

Estimation of Peat gas deposits in Kerala and Konkan Peat lands

Funding Agency Details

Gail India Limited

Department

Mechanical Engineering​

Description

GPR- continuous, high resolution cross-section depicting variations in the electrical properties of the shallow subsurface
Non invasive geophysical tool used to probe beneath the ground before the excavation of a potential site
The boundary between peat and the underlying mineral sediment is clearly identifiable because of the strong EM wave reflection resulting from the sharp reduction in the volumetric moisture content between the peat and the underlying mineral soil . Techniques for detailed study:
Velocity analysis (by 2D – CMP method)
Petrophysical or CRIM model (by 2D – CMP method)
‘EM Blanking’
Gas Percentage and volume estimation by CRIM model
Biogenic methane (92%)

Problem Statement

One of the marked features of coastal Holocene sequences in many parts of the world, the tropical coastlines in particular, is the occurrence of organic deposits termed as peat.
Our objective was to carry out for the first time i.e. focused on onshore geophysical measurements, analysis and interpretation by integrating Ground Pent rating Radar, Seismic refraction, analysis of peat samples. We have also constrained the data by way of core data, log data along the Kerala and Konkan coast 

Outcome of the Research

The first results shows very promising peat gas large volume of deposits with bulk saturation and peat thickness of sites that comes under Alappuzha and Periyar basins, the estimated total volume of peat gas is 291×106 m3 in Alappuzha basin and 13.428×106 m3 in Periyar basin.
Further studies like logging, pilot drilling is recommended for few sites for developing this unconventional oil and gas resources 

Principal Investigator

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