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By Hanif KHAN
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THEBASIC IDEA OF THIS PRESENTATIONIS THE SHARING OF THE IDEAS
PRESENTATION IS DIVIDED INTO TWOPARTS
1. PEOPLE HAVING LESS EXPOSURE OF3D
2. PEOPLE INVOLVED IN 3D
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SPREAD
SYMMETRIC
ASYMMETRIC
ENDOFF
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3D SPREAD OR PATCH
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In-Line i!e"#i$n
P%!%&&e& #$ #'e !e"ei(e! &ine i!e"#i$n )$!ien#%#i$n*
C!$++-Line i!e"#i$n
Pe!,eni"&%! #$ #'e !e"ei(e! &ine i!e"#i$n )$!ien#%#i$n*
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SWATH
A +%#' i+ % +e# $/ !e"ei(e! &ine+ %n +%&($+ %+ +'$n
0e&$
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SALVO
T'e +%&($ i+ % +e# $/ +'$# ,$in#+ !e"$!e $n #'e +%e
!e"ei(e! &ine+ +in #'e +%e #'e$!e#i"%& +,!e%
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SUB SURFACE COVERAGE
Re/&e"#i$n ,$in#+
A""$!in #$ #'e 2D #'e i+#%n"e 0e#een #'e !e/&e"#i$n,$in#+ i+ '%&/ $/ #'e i+#%n"e 0e#een #'e !e"ei(e!+. B# in 3D
e %!e !e"$!in in #$ i!e"#i$n+ In &ine %n C!$++ &ine. S$
#'e i+#%n"e 0e#een #'e !e/&e"#i$n ,$in#+ i+ '%&/ $/ #'e
i+#%n"e 0e#een #'e !e"ei(e!+ )In &ine* %n '%&/ $/ #'ei+#%n"e 0e#een #'e +$!"e+ )C!$++ &ine*.
I/ e +ee #'e +$!"e ,$in# !e"ei(e! ,$in# %n !e/&e"#i$n ,$in#
$n % 2D (ie e "%n n$#i"e e%+ie! #'%# %&& +0-+!/%"e
i+#%n"e+ %!e '%&/ $/ +!/%"e i+#%n"e+
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SPREAD AND REFLECTORS POINTS
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CONTINUITY OF COVERAGE
)2 DIMENTIONAL VIEW*
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Mi,&e "$(e!%e )F$&*
T'e Bin
T'e 0in +i4e i+ e5%& #$ #'e 6R72 8 6S72. E%"' #'e$!e#i"%&
CMP &$"%#i$n i+ #'e "en#e! $/ #'e 0in.
6R 9 Re"ei(e! +,%"in
6S 9 S$!"e +,%"in
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BIN
By Hanif KHAN
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BIN
By Hanif KHAN
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BIN
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CDP GRID
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T'e n0e! $/ !e/&e"#i$n+ /!$ #'e +%e Bin i+ :n$n %+ F$&.
FOLD
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In-Line F$&
F$& 9 N 8 Re"ei(e! In#e!(%& 7 2 8 S$!"e Line In#e!(%&
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C!$++-Line F$&
XLINE FOLD 9 NUMBER OF RECEIVER LINES72
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FULL FOLD 9 INLINE 8 XLINE
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UN EVEN FOLDIF INLINE OR XLINE FOLD IS NOT INTEGER
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FOLD TAPER IN
FOLD TAPER OUTT'e /$& #%,e! 9 ; $/ #'e ,%#"' ien#i$n
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3D GEOMETRIES1. BRICUARE
?. SPARSE 3D
@. DENSE 3D
. 2@1 DEGREE INCLINED
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Having the better ofset distribution thanorthogonal geometry, it was invented to improvethe ofsets.
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This is popular in desert area
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IF FF!"T #I!T$I%&TI' I! 'T (# IT)+ ("'"$T" -&I!ITI' FT $I'T!
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FF!"T!/$"0T"# I'T!2
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21 DEGREE INCLINED SLANTED
36 #"($"" !'T"# I)$" FF!"T#I!T$I%&TI' '# $"#&"! TH" FT
$I'T!
15 #"($"" $#&" %"TT"$$"!&T TH' 36 #"($"".
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3D AC>UISITION BY PARTS
TIE THE BLOCKS
LINE NUMBERING (SOURCE/RECEIVER) SOURCE/RECEIVER NUMBERING
OVERLAPE OF SWATHS
MERGING OF THE BLOCKS
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MARGING OF TWO BLOC
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MARGING OF TWO BLOC
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X MIN
H" TH$&(H )#"I'(
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FULL FOLD ARE
1560
1580
1540
15201
52
0
1500
PASSES THROUGH ELL
; 8 F&& S,!e%
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MINIMUM OFFSET2@
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MINIMUM OFFSET1. T'e ini $//+e# +'$& 0e +%&& en$' /$! Ve&$"i#ie+ $/
+'%&&$ +e"#i$n
2. T'e $n& ,!$0&e e i&& e# n$i+e %# ne%! $//+e#+
3. I# +'$& n$# 0e &$ne! #'%n $ne !$, in#e!(%&
?. I# +'$& 0e e5%& #$ #'e e,#' $/ +'%&&$e+#
!e/&e"#$!
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MAXIMUM OFFSET
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)inimum 7ar ofset
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)a8imum Far fset
' T$"! 9I %")&T"#, T$"! 9I
%" !T
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. I# e"!e%+e+ #'e %""!%" $/ n$ "$!!e"#i$n+ 0%+e $n ',e!0$&i"
%,,!$i%#i$n.
1. E5%& #$ #'e e,#' $/ #'e #%!e# '$!i4$n
2. T'e %i +%0&e !e/&e"#i$n %n&e i+ %0$# 2@-3 e!ee
3. In"!e%+e+ #'e n$n ',e!0$&i" ,%#' 'i"' i+ n$# !e5i!e
?. I/ i,&e %!e ,!$0&e in #'e %!e% 12 in"!e%+e $/ #'e #%!e# e,#'
@. B in"!e%+in #'e %i $//+e# e i&& in"!e%+e #'e "'%n"e #$ $(e! !ie
#'e %0ien# n$i+e $n #'e +in%& e"!e%+e+ #'e /!e5en" $/ #'e %#%nee #$
in"!e%+e #'e "'%!e +i4e in"!e%+e $/ #'e "'%!e +i4e in"!e%+e #'e "'%n"e #$
in"!e%+e i,&e+ %n +$!"e ene!%#in n$i+e
MAXIMUM OFFSET
. Fin%&& e "%n in"!e%+e #'e F%! $//+e# , #$ #'e +e%0&e /%! $//+e# #e+# #'!$'
$e&in. By Hanif KHAN
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MAXIMUM OFFSET
$ay tra:ing reveals where re;e:ted energy turns
into re7ra:ted energy 7or ea:h layer o7 interest
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RECEIVER INTERVAL
50 m
50 m
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?. S0+!/%"e S%,&e
@. FOLD 9 N8R INT 728S INT
. Mi!%#i$n
. L$ %n 'i' %n&e F%+
1. Ne%! +!/%"e "'%ne+ !%,i& %n i# "'%ne+ (e&$"i# +$ !e"ei(e! in#e!(%& +'$&
0e +%&&.
3. C%0&e &en#'
2. F$! $$ +#%#i" "$!!e"#i$n #'e !e5i!een# i+ #$ !e"ei(e! !$,+ ,e! %(e&en#'
RECEIVER INTERVAL
. T'e in#e!(%& +'$& n$# 0e !e%#e! #'%n #'e +'$!#e+# %(e&en#'
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. He&,+ #$ ien#i/ #'e &%#e!%& "'%ne+ $/ e$&$i"%& /e%#!e+.
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SOURCE INTERVAL
25 m
50 m
50 m50 m
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1. E//e"#+ #'e /$&
3. G$$ % #$ :ee, S$!"e in#e!(%& +%e %+ Re"ei(e! in#e!(%&
SOURCE INTERVA
2. FOLD 9 N8R INT 728S INT
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CONCLUSION
THIS IS NOT END
WE WILL CONTINUE IN DETAIL