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please how can calcareous nannoplanktons be used in petroleum exploration?

Dear Josh,

Nannoplanktons can be used in two ways in petroleum exploration; firstly, some deep sea rocks such as chalks are formed by the accumulation of nannoplanktons which in turn may become excellent reservoirs such as Ekofisk formation in the North Sea and Austin Chalk in Texas. These two key reservoirs are true limestone composed of chalk which are primarily composed of nannoplanktons.

Secondly, nannoplanktons are one of the useful rock grains among many others which can be used in biostratigraphical interpretation as many oilfields operators like to analyse rocks for age determination. Age determination  often becomes very critical in the reservoir characterization in field development.

Hope, this answer helps you.




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Syed Tariq Hasany


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