Chemical and Noble Gas Isotope Compositions of Formation Gases from a 3 km Deep Scientific Borehole in the Koyna Seismogenic Zone, Western India

<div>Schematic diagram showing the air hammer drilling setup and major components of the OLGA laboratory at the drill site. The Mathena shale gas separator is used to separate gas from borehole cuttings, and the gas is then pumped through a plastic tube to the nearby OLGA laboratory where the gases are determined.</div>

Geofluids

fig2

Figure 2

Figure 2: Chemical and Noble Gas Isotope Compositions of Formation Gases from a 3 km Deep Scientific Borehole in the Koyna Seismogenic Zone, Western India 

Figure 2 | Chemical and Noble Gas Isotope Compositions of Formation Gases from a 3 km Deep Scientific Borehole in the Koyna Seismogenic Zone, Western India 