Drilling & Mudlogging Analysis
Analisis hidrolika lumpur, volume sumur, waktu sirkulasi, dan parameter pengendalian sumur (Well Control).
Panduan Hidrolika & Well Control
1. Volume & Kapasitas
Menghitung volume lubang dan anulus berdasarkan geometri sumur.
Kapasitas (bbl/ft):
\[ Kap = \frac{ID^2}{1029.4} \]
Volume Anulus:
\[ V_{an} = V_{hole} - V_{disp} \]
2. Sirkulasi & Hidrolika
Debit Pompa (Q):
\[ Q = POP \times SPM \]
Lag Time (Bottoms Up):
\[ T_{lag} = \frac{V_{anulus}}{Q} \]
Annular Velocity (AV):
\[ AV = \frac{24.5 \times Q_{gpm}}{D_{hole}^2 - D_{pipe}^2} \]
ECD:
\[ ECD = MW + \frac{APL}{0.052 \times TVD} \]
3. Well Control
Tekanan Formasi (Pf):
\[ Pf = (0.052 \times MW \times TVD) + SIDPP \]
Kill Mud Weight (KMW):
\[ KMW = \frac{Pf}{0.052 \times TVD} \]
A. Hole Geometry (Geometri Lubang)
B. Drill String (Rangkaian Pipa)
C. Pump & Mud Data (Pompa & Lumpur)
D. Well Control Data
1. Volume & Kapasitas
Total Hole Volume
-
bbl
Displacement
-
bbl
Total Annulus Volume
-
bbl
2. Waktu Sirkulasi
Flow Rate
-
GPM / bbl/min
Lag Time
-
menit
Cycle Time
-
menit
3. Hidrolika (Open Hole - DC)
Annular Velocity
-
ft/min
Effective Circulating Density
-
PPG
4. Well Control
Formation Pressure
-
psi
Kill Mud Weight
-
PPG
Barite Needed
-
lbs/bbl
Kick Type
-
Est. Gradient
Disclaimer
Tool ini disusun untuk keperluan edukasi semata. Perhitungan di lapangan harus mempertimbangkan faktor keselamatan, standar perusahaan, dan kondisi aktual sumur.
Referensi
- Bourgoyne Jr, A. T. et al. (1986) – Applied Drilling Engineering, SPE Textbook Series.
- API RP 13D – Recommended Practice on the Rheology and Hydraulics of Oil-Well Drilling Fluids.
- Tegar Hermawan T. – Laporan Praktikum Geologi Minyak & Gas Bumi: Analisis Mud Logging.