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lecture_15

# lecture_15 - 4 B T QW u r 4 B T ’ QW u i 4 B T QW u r ’...

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K r 2 ln( L / R ) 2 LT 0 K r 2 ln( l / R ) (7.49)2 LT 0 LECTURE 15 - SLUG TESTS AND RECHARGE/DISCHARGE BOUNDERIES 15.1 HVORSLEV METHOD IF: L/R > 8 THEN: WHERE: r = RADIUS OF WELL CASING R = RADIUS OF WELL SCREEN L = LENGTH OF WELL SCREEN T = TIME FOR WATER LEVEL TO 0 RISE/FALL 37% OF INITIAL CHANGE OR WHERE: r = RADIUS OF WELL CASING (FT) R = RADIUS OF WELL SCREEN (FT) L = LENGTH OF WELL SCREEN (FT) T = TIME FOR WATER LEVEL TO 0 RISE/FALL 37% OF INITIAL CHANGE (DAYS)

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( h 0 & h ) r QW ( u ) r 4 B T ( h 0 & h ) i QW ( u ) i
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Unformatted text preview: 4 B T QW ( u ) r 4 B T ’ QW ( u ) i 4 B T QW ( u ) r ’ Qw ( u ) i ( u ) r ’ ( u ) i r 2 r S 4 Tt r ’ r 2 i S 4 Tt i r 2 r t r ’ r 2 i t i r i ’ r r [ t i t r ] 1 2 15.2 LOCATING RECHARGE/DISCHARGE BOUNDARIES LET: WHERE: (h - h) = DRAWDOWN IN REAL WELL r (h - h) = DRAWDOWN IN IMAGE WELL i THEN AT WHAT TIMES (t AND t ) DOES (h - h) = (h - h) ? i r r i LAW OF TIMES...
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lecture_15 - 4 B T QW u r 4 B T ’ QW u i 4 B T QW u r ’...

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