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SEISMIC ANOMALY DAN SEISMIC PITFALL

LAPORAN KULIAH KERJA PRAKTEK 

DILAKSANAKAN PADA :

PT. RAGAM MAJU TANGGUH (RMT)

Divisi Techic!" S#$$%&' Ci'&! G&! Ci*#*#&+ J!,! -!&!'

O"eh :

MUHAMMAD I-AL R A

/012/131/1145

JURUSAN TEKNIK GEOFISIKA

FAKULTAS TEKNIK

UNI6ERSITAS SYIAH KUALA

DARUSSALAM+ -ANDA ACEH

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SEPTEM-ER 01/4

HALAMAN PENGESAHAN

LAPORAN KULIAH KERJA PRAKTEK 

SEISMIC ANOMALY DAN SEISMIC PITFALL

DILAKSANAKAN PADA :

PT. RAGAM MAJU TANGGUH (RMT)Divisi Techic!" S#$$%&' Ci'&! G&! Ci*#*#&+ J!,! -!&!'

Oleh

 Nama : Muhammad Iqbal R A

 NIM : 1204107010056

Program Studi : e!"i! #eo$i%i!a

&i%etu'ui Oleh(

Pembimbi"g Prodi)*uru%a"( Pembimbi"g +a,a"ga"(

Muh-li%( S.Si( M.S- Ir. /ahu rio"o( M.

 NIP. 177050 200501 1 002

Me"getahui:

3oordi"ator 33P Prodi)*uru%a" e!"i! #eo$i%i!a

a!ulta% e!"i! "%iah

3haial( S( M.S-.

 NIP. 1740605 200212 1 001

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elah di%emi"ar!a" hari Sabtu 14 Noember 2015

KATA PENGANTAR 

Alhamdulillah ,u'i da" %u!ur ,e"uli% ,a"'at!a" !ehadirat Allah S/ a"g

telah memberi!a" rahmat da" !aru"ia8Na %am,ai %aat i"i %ehi"gga ,e"uli% mam,u

me"ele%ai!a" +a,ora" 3er'a Pra!te! %e%uai 'ad9al a"g telah di re"-a"a!a". Shala9at

 beriri"g %alam ,e"uli% hatur!a" !e ,a"g!ua" Nabi e%ar Muhammad SA/ a"g telah

memba9a ma"u%ia dari ama" 'ahiliah !e ama" a"g ,e"uh ilmu ,e"getahua" %e,erti

%aat i"i.

+a,ora" 3er'a Pra!te! de"ga" 'udul ;Seismic Anomaly da" Seismic Pitfall < i"i

me"'ela%!a" te"ta"g ,emahama" taha,a"8taha,a" da" ,arameter8,arameter a"g %a"gat

di,erlu!a" dalam i"ter,reta%i data %ei%mi! me"ggu"a!a" metode %ei%mi! re$le!%i.

Selama ,ela!%a"aa" da" ,e"u%u"a" la,ora" 3er'a Pra!te! i"i ,e"uli% %a"ga"

 ba"a! me"da,at!a" du!u"ga"( %ema"gat( da" doa a"g berlim,ah dari berbagai ,iha!(

 ,ada !e%em,ata" i"i ,e"uli% i"gi" me"am,ai!a" terima!a%ih a"g %eba"a!8

 ba"a!"a !e,ada %eluruh ,iha! a"g telah memba"tu( a"tara lai":

1 Allah S/( ata% %emua "i!mat( !e%em,ata" da" !aru"ia8Na a"g tiada he"ti8

he"ti"a= Ra%ulullah SA/ %ebagai ,a"uta" umat ma"u%ia a"g me"'adi %uri

telada" bagi %eluruh alam.

2 3e,ada Aaha"da >a"a$iah da" ibu"da Sal9iah( terima!a%ih ata% %eluruh

 ,e"gorba"a"( motia%i( da" doa a"g %elalu me"ertai a"a!mu.

3e,ada aba"g %aa 3hairu" Nair da" ade! %aa Ribhul A%riah( terima!a%ih

ata% %ema"gat( araha"( ba"tua"( da" doa"a %elama i"i.

4 a,a! 3haial S.( M.Si Sela!u !oordi"ator !uliah !er'a ,ra!te! a"g telah

melua"g!a" 9a!tu da" memberi!a" ,e"garaha" dalam mela!%a"a!a" !uliah

!er'a ,ra!te! 

5 a,a! Muh-li% S.Si( M.S- %ela!u ,embimbi"g !er'a ,ra!te! a"g telah

melua"g!a" 9a!tu da" memberi!a" ilmu8ilmu a"g %a"gat berharga.

6 a,a! Ib"u Ru%d S.Si( M.S- %ela!u do%e" ,e"gu'i dalam %em"i"ar !uliah

!er'a ,ra!te! a"g telah melua"g!a" 9a!tu da" memberi!a" ,a"da"ga" a"g

 bermam$aat

7 a,a! Nali I%mail( S.Si P.hd %ela!u ,embimbi"g a!ademi! a"g telah

melua"g!a" 9a!tu u"tu! ,e"garaha" ,er!uliaha".

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? a,a! /ahu rio"o( M. da" !eluarga ata% !ebai!a""a %elama i"i a"g

tida! terbila"g( 9a!tu bela'ar a"g telah diatur %edemi!ia" ru,a( !e%em,ata"

u"tu! me"da,at!a" ilmu8ilmu baru a"g %a"gat bergu"a( da" araha" %elama

mela!%a"a!a" 3er'a Pra!te!.

Para do%e" da" ,ega9ai li"g!u, Prodi e!"i! #eo$i%i!a( a"g telah memberi!a"

ilmu( "a%ehat( da" ba"tua" dari a9al ,er!uliaha" %am,ai %aat i"i.

10 u"da @rli"a( u"da Ru9aida( Pama" aihaqi da" Aba"g Ade A!bar %eluruh

!eluarga"a ata% doa( "a%ehat( !e,edulia"( da" ba"tua" %elama i"i.

11 Muhammad ul$i!ar BPe!o"gC( >eru >ardia"( lul Ami( Ri%!i A"dria" da"

Ri!a >i!mah BNa!mahC a"g me"'adi ,art"er 3P %e"a%ib %e,er'ua"ga"(

terima!a%ih ata% ba"tua" da" !eber%amaa""a.

12 3a9a"8!a9a"( aba"g da" !a!a!( %erta adi!8adi! e!"i! #eo$i%i!a a!ulta%e!"i! NSDIA> terutama a"g!ata" 2012( terima!a%ih doa( %ema"gat( da"

!eber%amaa""a %elama i"i.

Pe"uli% me"adari ma%ih amat %a"gat ba"a! !e!ura"ga" da" !e%alaha" dalam

 ,e"uli%a" +a,ora" 3er'a Pra!te! i"i( u"tu! itu ,e"uli% membutuh!a" !riti! da" %ara"

a"g memba"gu" u"tu! me"'adi lebih bai!. A!hir !ata( ,e"uli% moho" maa$ ata%

!e%alaha" da" !e!ura"ga" dalam ,e"uli%a" la,ora" i"i. Pe"uli% 'uga berhara, %emoga

 baha%a" a"g diurai!a" dalam la,ora" i"i da,at berma"$aat !ede,a""a.

*a!arta( Se,tember 2015

M#h!77! I8*!" R A

DAFTAR ISI

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>alama" Sam,ul ................................................................................................ i

>alama" Pe"ge%aha".......................................................................................... ii

3ata Pe"ga"tar ................................................................................................... iii

&a$tar I%i ............................................................................................................

&a$tar #ambar .................................................................................................... ii

-A- I PENDAHULUAN................................................................................. /

1 +atar ela!a"g............................................................................ 1

2 Ma!%ud da" u'ua" ................................................................... 2

Mam$aat 33P ............................................................................

-A- II PROFIL ORGANISASI DAN TINJAUAN PUSTAKA ................. 2

1 Pro$il Orga"i%a%i ................................................................................ 4

1Ei%i da" Mi%i Peru%ahaa"................................................................... 52 #elomba"g Sei%mi! ................................................................... 6

*e"i% #elomba"g Sei%mi! .......................................................... 6

4 >u!um i%i!a #elomba"g Sei%mi!............................................

5 Im,eda"%i A!u%ti!...................................................................... 1

6 3eo$i%ie" Re$le!%i...................................................................... 1

7 @$e! 3edalama"......................................................................... 14

? @$e! I"ter$ere"%i......................................................................... 15

Re%olu%i Eerti!al Sei%mi!........................................................... 15

10.........................................................................................................*e"i%

luida....................................................................................................... 1611.........................................................................................................@$e!

&iage"e%a................................................................................................ 17

12.........................................................................................................Polarita%

da" a%a................................................................................................... 17

1.........................................................................................................A!ui%i

&ata Sei%mi!........................................................................................... 1?

14.........................................................................................................Pe"golah

a" &ata Sei%mi!....................................................................................... 24

15.........................................................................................................I"ter,reta

%i &ata Sei%mi!........................................................................................ 25

-A- III METODE KERJA............................................................................. 9/

1 /a!tu da" em,at ............................................................................... 1

2 Peralata" a"g &igu"a!a".......................................................... 1

Metode da" Pro%e% 3er'a............................................................. 1

-A- I6 PELAKSANAAN KERJA PRAKTEK ........................................... 90

1 A"omali Sei%mi! ....................................................................... 2

1*e"i% A"omali 3e-e,ata"...................................................................... 2

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2 i"'aua" mum Sei%mi! Pit$all.................................................. 40

4.2.1 Sei%mi! Pit$all ,ada A"omali Sei%mi!........................................... 40

Sei%mi! Pit$all ,ada A!ui%i &ata Sei%mi!................................... 4

4 Sei%mi! Pit$all ,ada Pe"golaha" &ata Sei%mi! .......................... 45

5 Sei%mi! Pit$all ,ada I"ter,reta%i &ata Sei%mi! .......................... 456 ieldtri, Fi,ami"g!i% ................................................................. 4?

-A- 6 PENUTUP ........................................................................................... 2

1 3e%im,ula" .......................................................................................... 4

2 Sara".....................................................................................................4

DAFTAR PUSTAKA

LAMPIRAN

DAFTAR GAM-AR 

#ambar 2.1. 3om,o"e" G 3om,o"e" #elomba"g............................................. 6

#ambar 2.2. #elomba"g P.................................................................................. 7

#ambar 2.. #elomba"g S.................................................................................. ?

#ambar 2.4. #elomba"g Rayleigh...................................................................... ?

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#ambar 2.5. #elomba"g Love............................................................................

#ambar 2.6. >u!um S"elliu%.............................................................................. 10

#ambar 2.7. Pri"%i, >uge"............................................................................... 11

#ambar 2.?. Pri"%i, ermat................................................................................ 11

#ambar 2.. I"ter,ere"%i de%!tru!ti$ da" !o"tru!ti$ ,ada gelomba"g ,a%e mi"imumda" ,olarita% "ormal............................................... 15

#ambar 2.10 Polarita% "ormal da" terbali! me"urut S@# BaC Mi"imum ,ha%e

BbC ero ,ha%e................................................................................... 1?

#ambar 2.11 Ilu%tra%i Migra%i............................................................................. 25

#ambar 2.12 Ilu%tra%i Multi,le........................................................................... 27

#ambar 2.1 Ilu%tra%i &i$ra!%i............................................................................ 27

#ambar 2.14 &i$ra!%i ,ada Re!ama" Sei%mi!................................................... 2?

#ambar 2.15 Ilu%tra%i terbe"tu!"a ,ema"tula" gelomba"g re$ra!%i................ 2

#ambar 2.16 Re$le!tor u"tu! bida"g miri"g...................................................... 2

#ambar 4.1. A"omali !e-e,ata" ,ada ,e"am,a"g %ei%mi! BaC ,e"am,a"g

%ei%mi! BbC Pe"i,i%a" %emu do9"di, de"ga" bertambah"a !edalama".............................................................. 1

#ambar 4.2. Pe"i"g!ata" !e-e,ata" ,ada re!ama" %ei%mi! terhada,a

!edalama"...................................................................................... 2

#ambar 4.. Re!ama" %ei%mi! a"g me"u"'u!a" pull up................................. 2

#ambar 4.4. A"omali !e-e,ata" me"u"'u!a" pull up.......................................

#ambar 4.5. A"omali ,ull do9" ,ada ,e"am,a"g %ei%mi!...............................

#ambar 4.6. A"omali !e-e,ata" pull down....................................................... 4

#ambar 4.7. A"omali pull down BaC A"omali pull down !o"ta! de"ga" ga% BbC

e"ome"a pull down ,ada re!ama" %ei%mi! a!ibat a"omali

!e-e,ata" a"g lebih re"dah di%e!itar"a..................................... 5

#ambar 4.?. A"omali bright spot ,ada re!ama" %ei%mi!.................................. 5

#ambar 4.. A"omali flat spot ........................................................................... 6

#ambar 4.10 A"omali flat spot ( dalam domai" time me"'adi pull down.... .. .. .. . 6

#ambar 4.11 A"omali dim spot  ,ada re!ama" %ei%mi!...................................... 6

#ambar 4.12 A"omali $ault %hado9 !a%u% "ormal $ault %i%i,a" later 

 !e-e,ata" ti"ggi BaC Geology Saction BbC Seismic Saction........... 7

#ambar 4.1 A"omali $ault %hado9"!a%u% %e%ar "ai! BaC geogi %a-tio" BbC

Sei%mi- Sa-tio" ............................................................................. ?

#ambar 4.14 A"omali gas chimney/cloud ..........................................................

#ambar 4.15 Ilu%tra%i ,e"i,i%a" %emu la,i%a" a!ibat e$e! ,e"i"g!ata"

!e-e,ata" da" !edalama" BaC #eologi %e-tio"BbC %ei%mi! Se-tio" ........................................................................ 40

#ambar 4.16 Tunning thickness ,ada la,i%a" a"g memba'i............................. 40

#ambar 4.17 @$e! diaga"e%a............................................................................... 41

#ambar 4.1? 3ehadira" ,ullu,( %ag( da" di%tru,%i ,ada o"a footwall .............. 42

#ambar 4.1 Pri"%i, da%ar $old re-oerage........................................................4

#ambar 4.20 Ilu%tra%i ada"a no full fold ...........................................................4

#ambar 4.21 Migra%i BaC smilling efek  BbC true point  B-C frowning .....................44

#ambar 4.22 Ilu%tra%i Sideswipe.........................................................................45

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