Perforation (oil and gas production)

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Perforation shown at the end of the conveyor tube

The perforation is the area made permeable to gases and liquids in the casing of a borehole structure. There the conveyed material (mostly oil or natural gas ) can enter the borehole construction.

First of all, during the development, the deposit has to be reached by deep drilling and the borehole has to be cased and cemented . Subsequently, in the area of ​​the deposit, piping, called the production pipe tour there, and annulus cement are perforated ("perforated") and thus a connection is created between the deposit and the interior of the borehole. This is usually done using shaped charges .

Web links

Individual evidence

  1. ^ Matthew R. Simmons: When the desert runs out of oil, FinanzBook Verlag, 2007, ISBN 9783898792271 , p. 190 [1] .
  2. ^ Extraction of crude oil and natural gas , German Oil Museum Wietze .