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1 2015

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Granice złóż gazu ziemnego Lachowice i Stryszawa w świetle testów rurowym próbnikiem złoża

Dubiel S., Rzyczniak M., Solecki M. L., Maruta M.

Przegląd Geologiczny

2015

Vol. 63, nr 1

60–-66

Identification of hydrocarbon accumulation boundaries within an oil field area is an important factor for making decisions whether or not to drill out and develop the field, or to give up extraction in some parts of the areas. As an example, two gas/condensate fields in the Devonian strata of the Western Carpathians are presented in this paper. These deposits were found at various depths in the Miocene basement in two separate tectonic blocks. Boundaries of the Stryszawa field were identified with the traditional Horner method and with the modern log-log method on the basis of industrial data obtained with DST and production tests. Based on the analysis of the drilling-up and testing methods used in the L-4 well in the Devonian strata of the Lachowice field the authors formulated the causes of considerably lower inflow of reservoir fluid to the tester during four DST tests, and the inability to determine boundaries of this part of the deposit.