Two-Phase Slug Catcher Sizing Calculator
Flow Assurance & Surface Facilities: Calculate pigging liquid surge volume ($V_{pig}$), required slug catcher storage capacity ($V_{sc}$), and finger pipe geometries.
Subsea Tieback Geometry
Finger-Type Slug Catcher Geometry
Liquid Slug & Vessel Sizing
Pigging Slug Volume ($V_{pig}$)
-- bbl
In SI: -- m³
Design Storage ($V_{sc}$)
-- bbl
Includes -- % safety buffer
Required Pipe Fingers
-- pipes
Capacity / Finger: -- bbl
Total Pipeline Inventory
-- bbl
Geometric Volume: -- bbl
Slug Catcher Principles:
• When a pig is launched, it sweeps virtually all accumulated liquid ahead of it: $V_{pig} = E_L \cdot V_{pipeline}$.
• Finger-type slug catchers use inclined large-diameter pipes ($30$–$48$ in) that withstand high pressures at lower cost than vessel catchers.
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