BOP Pressure Test Calculator

Calculate BOP test pressures per API RP 53 / API Standard 53 requirements

BOP Test Parameters

Enter equipment ratings and well parameters

Maximum Allowable Annular Surface Pressure

API 53 Test Requirements

  • Low pressure test: 200-300 psi
  • High pressure test: Full rated WP or MAASP
  • Minimum hold time: 5 minutes (surface)
  • Max allowable leak: 0 psi (API) / varies by jurisdiction

Test Pressure Results

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Standard BOP Ratings

WP Rating High Test Low Test
5,000 psi5,000 psi200-300 psi
10,000 psi10,000 psi200-300 psi
15,000 psi15,000 psi200-300 psi
20,000 psi20,000 psi200-300 psi

API 53 Test Guidelines

Low Pressure Test

Low Pressure Test: 200 - 300 psi Purpose: Detect seal leaks that may not be apparent at high pressure due to seal energization Hold Time: Minimum 5 minutes (surface equipment)

High Pressure Test

High Pressure Test = MINIMUM of: 1. BOP Rated Working Pressure 2. MAASP (Maximum Allowable Annular Surface Pressure) 3. Casing Burst Rating (with safety factor) 4. Wellhead Working Pressure Rating For subsea: Test to full rated working pressure or as specified in well-specific procedures

MAASP Calculation

MAASP = (Fracture Gradient - MW) x 0.052 x TVD_shoe Or: MAASP = (Casing Burst x SF) - Hydrostatic Where: SF = Safety factor (typically 0.8) TVD_shoe = TVD of casing shoe

Test Frequency (API 53)

Initial: After BOP installation, before drilling out Periodic: Every 14 days (or per regulations) After: Disconnection, repairs, or pressure control event Before: Displacing to underbalanced fluid