Abstract
Temperature is the most sensitive parameter in hydrocarbon generation. None of the sediments will pass through the whole maturation process unless the initial geothermal gradient is greater than 33.7℃/km. Corresponding to this value of geothermal gradient the terrestrial heat flux value comes out to be 67.4 milli W/m2/s. Fortunately, the terrestrial heat flux map for India is readily available in the geothermal atlas of India (1991 edition). Simultaneously, the sedimentary basins map of India prepared by director general hydrocarbons, manifesting there in 26 sedimentary basins is also available. During exploration, so far only 13 sedimentary basins have yielded favorable results and the efforts in case of remaining 13 basins went futile. In order to solve this predicament of reducing the risk in exploration we have proposed to amalgamate both the maps to prepare a common map which will be far more useful and can be further extended to global scale.
Highlights
Life on earth is nurtured as a consequence of two selfsustained energy sources: nuclear fission reactor in earth’s core and fusion reactor in sun’s core
In our current study we have proposed an alternative approach for preliminary screening before petroleum exploration, which is based on the phenomenon of petroleum genesis, according to which basic components for petroleum formation are – organic rich rock, heat and pressure
We suggest the amalgamation of sedimentary basins map of India with the terrestrial heat flux map for improving the efficiency of initial screening
Summary
Life on earth is nurtured as a consequence of two selfsustained energy sources: nuclear fission reactor in earth’s core and fusion reactor in sun’s core. Even though these techniques are no substitute for manual drilling, they are very useful for preliminary screening While two of these non- invasive methods use gravity meters and magnetometers to measure variations in earth’s gravitational pull or magnetic field to assess occurrence of dense hydrocarbon-laden source rocks, they have their share of anomalies and require highly skilled and experienced personnel to accurately interpret the data. These methods are fairly recent and have been introduced to supplement seismic data which was being limited by variations in elasticity of rocks and scattering of seismic signals due to presence of faults. Increase in petroleum exploration efficiency has been gradual over last two decades
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