Bengali prabandha Rachana in oil reservation
Answers
Since the beginning of discovery of petroleum, scientists promulgated different theories regarding the origin of petroleum. Undoubtedly, the organic theory is most widely accepted. It states that rocks of marine origin of tertiary age, specially sedimentary rocks, generally contain petroleum. Several thousand years ago, during the submergence of many areas, a large amount of organic matter also went down below the ocean floor.
Later on, chemical decomposition of the organic matter separated the hydrocarbons. Gradually these hydrocarbons accumulated within the rock floor. In India, three types of structures are recognized as the possible oil-bearing regions. These are anticline, fault and stratigraphic trap of tertiary sedimentary rocks.
Petroleum Resource in India
Number of areas were earmarked as potential oil-bearing regions for future exploration work.
1. Assam-Arakan arc:
Comprising the entire north-eastern India. According to the available estimates, apart from the existing oil-producing zone in Assam, a number of other regions adjacent to the state may be considered potential oil-bearing zones. Besides Assam, Tripura, Manipur and Meghalaya possesses a substantial oil reserve.
2. Gujarat-Cambay Region:
This region is already producing a large amount of oil. The Cambay-Kutch area contains huge amount of oil.
3. Bombay Off-shore Region.
4. West Bengal Basin:
Prospecting and exploration work is going on in several places.
This region is already producing a large amount of oil. The Cambay-Kutch area contains huge amount of oil.
5. Cauvery Basin.
6. Andaman and Nicobar Islands.
7. Tamil Nadu
Oil-Producing Areas:
At present, oil is exploited from three different regions in India.
