most oil and natural gas is found in fossil rock.
most oil and natural gas is found in fossil rock.
most oil and natural gas is found in what type of rock?
fossil
renewable natural gas









































renewable natural gas (rng), also known as sustainable natural gas (sng) or biomethane, is a biogas which has been upgraded to a quality similar to fossil natural gas and having a methane concentration of 90% or greater. a biogas is a gaseous form of methane obtained from biomass. by upgrading the quality to that of natural gas, it becomes possible to distribute the gas to customers via the existing gas grid within existing appliances. renewable natural gas is a subset of synthetic natural gas or substitute natural gas (sng).
renewable natural gas
during the financial year 2012–13, the production of crude oil was 37.86 million tons and 40,679 million standard cubic meters (nearly 26.85 million tons) natural gas. the net import of crude oil & petroleum products is 146.70 million tons worth of rs 5611.40 billions. this includes 9.534 million tons of lng imports worth of rs. 282.15 billions. internationally, lng price (one mmbtu of lng = 0.1724 barrels of crude oil (boe) = 24.36 cubic meters of natural gas = 29.2 litres diesel = 21.3 kg lpg) is fixed below crude oil price in terms of heating value. lng is slowly gaining its role as direct use fuel in road and marine transport without regasification. by the end of june 2016, lng price has fallen by nearly 50% below its oil parity price making it more economical fuel than diesel/gas oil in transport sector. in 2012-13, india consumed 15.744 million tons petrol and 69.179 million tons diesel which are mainly produced from imported crude oil at huge foreign exchange out go. use of natural gas for heating, cooking and electricity generation is not economical as more and more locally produced natural gas will be converted into lng for use in transport sector to reduce crude oil imports. in addition to the conventional natural gas production, coal gasification, coal bed methane, coal mine methane and biogas digesters / renewable natural gas will also become source of lng forming decentralised base for production of lng to cater to the widely distributed demand. there is possibility to convert most of the heavy duty vehicles (including diesel driven rail engines) into lng fuelled vehicles to reduce diesel consumption drastically with operational cost and least pollution benefits. also, the break even price at user end for switching from imported coal to lng in electricity generation is estimated near us$6/mmbtu. the advent of cheaper marine cng transport will restrict lng use in high end transport sector to replace costly liquid fuels leaving imported cng use for other needs. as the marine cng transport is economical for medium distance transport and has fast unloading flexibility at many ports without costly unloading facilities, they have become alternate solution to submarine gas pipelines. natural gas/methane can also be converted cheaply in to hydrogen gas and carbon black without emitting any green house gas for use in transport sector with fuel cell vehicle technology.
energy policy of india