Upload
novika-sri-wardani
View
13
Download
1
Embed Size (px)
DESCRIPTION
perhitungan neraca massa di GS BOB
Citation preview
LAMPIRAN A
CONTOH PERHITUNGAN
Contoh perhitungan neraca massa komponen di Gathering Station, Water
Cleaning Plant, Water Injection Plant dan Disposal Well dengan data laju alir air
dapat dilihat pada Tabel A.1.
Tabel A.1 Data Laju Alir Air di BOB PT. BSP – Pertamina Hulu, Zamrud, Siak.
Water Management
Description BWPD
Inlet to Skim Tank 189.499
Returned Water to GS (Pit Pump) 1.198
Nett Total from Zamrud GS 188.051
Injection to WIW Beruk 41.110
Injection to WIP Zamrud 111.228
Total Water Injected 152.238
Injected to Non EOR Well Zamrud 25.722
Injected to Beruk Disposal Well 7.324
Excess Water to Emergency Pit 9.991
Returned Water to GS (Pit Pump) 250
Sumber: Morning Report – GS (12 Mei 2013)
A-1
A. Gas Boot
Gambar A.1 Blok Diagram Alir Neraca Massa Komponen Gas Boot di BOB PT.
BSP ‒ Pertamina Hulu, Zamrud, Siak
Dari data pada gambar didapatkan jumlah total laju alir air pada keseluruhan
proses:
NMK: Finput = Foutput
FGB = -(FPit + FSkim) + FWashTank
185.384 BWPD = -(X + 1.198 BWPD) + FWashTank
FWashTank = (185.384 + 1.198 + X) BWPD
FWashTank = (186.582 + X) BWPD
A-2
B. Wash Tank
Gambar A.2 Blok Diagram Alir Neraca Massa Komponen Wash Tank di BOB
PT. BSP ‒ Pertamina Hulu, Zamrud, Siak
Dari data pada gambar didapatkan jumlah total laju alir air pada keseluruhan
proses:
NMK: Finput = Foutput
FWashTank = FPit + FShipping + FSkimming
(186.582 + X) BWPD = (9.991 + 189.499) BWPD
X = -(186.582) BWPD + 199.490
BWPD
X = 12.908 BWPD
Sehingga, FWashTank = (186.582 + X) BWPD
= 186.582 BWPD + 12.908 BWPD
= 199.490 BWPD
A-3
C. Skimming Tank
Gambar A.3 Blok Diagram Alir Neraca Massa Komponen Skimming Tank di
BOB PT. BSP ‒ Pertamina Hulu, Zamrud, Siak
Dari data pada gambar didapatkan jumlah total laju alir air pada keseluruhan
proses:
NMK: Finput = Foutput
FSkimming = FPit + FGB + FFilter
189.499 BWPD = (250 + 1.198 + X) BWPD
X = 189.499 BWPD + 1.448 BWPD
X = 188.051 BWPD
D. Filter
Gambar A.4 Blok Diagram Alir Neraca Massa Komponen Filter di BOB PT.
BSP ‒ Pertamina Hulu, Zamrud, Siak
A-4
E. Balance Tank
Gambar A.5 Blok Diagram Alir Neraca Massa Komponen Balance Tank di BOB
PT. BSP ‒ Pertamina Hulu, Zamrud, Siak
Dari data pada gambar didapatkan jumlah total laju alir air pada keseluruhan
proses:
NMK: Finput = Foutput
FBalance = FPit + FWIW + FWIP
188.051 BWPD = (X + 41.110 + 111.228) BWPD
X = 188.051 BWPD – 152.338 BWPD
X = 35.713 BWPD
A-5
F. Emergency Pit
Gambar A.6 Blok Diagram Alir Neraca Massa Komponen Emergency Pit di
BOB PT. BSP ‒ Pertamina Hulu, Zamrud, Siak
Dari data pada gambar didapatkan jumlah total laju alir air pada keseluruhan
proses:
NMK: Finput = Foutput
FPit = FDisposal + FGB
FWashTank + FBalance + FSkimming = (X + 12.908) BWPD
(9.991 + 35.713 + 250) BWPD= X + 12.908 BWPD
X = (45.954 – 12.908) BWPD
X = 33.046 BWPD
A-6
G. Disposal Well
Gambar A.7 Blok Diagram Alir Neraca Massa Komponen Disposal Well di BOB
PT. BSP ‒ Pertamina Hulu, Zamrud, Siak
Dari data pada gambar didapatkan jumlah total laju alir air pada keseluruhan
proses:
NMK: Finput = Foutput
FDisposal Well = FZamrud + FBeruk
33.046 BWPD = (25.722 + 7.324) BWPD
33.046 BWPD = 33.046 BWPD
Maka, dibuktikan bahwa neraca massa komponen telah sama untuk laju alir
masuk dan laju alir keluar pada tiap proses.
A-7