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GGU-SLUGTEST: Pressurised slug tests

When entering the test data for evaluation of so-called pressurised slug tests (pulse tests), the casing radius rc must be replaced by:

image-20250113-093332.png

where:

rc :   Casing radius [m]

l :    Test distance [m]

cw :  Compressibility of test zone [m²/N]

ρ w : Density of water [kg/m³]

If cw is not precisely known, calculations may be performed using the compressibility of water instead (4.78 · 10-10 m2/N-1 at 10 °C).

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