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Pipeline Collapse Pressure Modules

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CALCULATOR MODULE : Pipeline Collapse Pressure ±

Calculate subsea pipeline collapse pressure and buckle propagation pressure using either the DNV equations, BSI equations, or API equations.

Change Module :

Lame's Equation Compound Cylinder Or Pipe Calculation Module
Lame's Equation Thick Wall Pipe Stress Calculation Module
Pipeline Allowable Stress Calculation Module
Pipeline Axial Load Calculation Module
Pipeline Combined Stress Check Calculation Module
Pipeline Expansion Spool Calculation Module
Pipeline Fluid Velocity And Flowrate Calculation Module
Pipeline Fluid Volume And Mass Calculation Module
Pipeline Hoop Stress Calculation Module
Pipeline Local Pressure Calculation Module
Pipeline Maximum Allowable Design Pressure Calculation Module
Pipeline Natural Vibration Frequency Calculation Module
Pipeline Test Pressure Calculation Module
Pipeline Wall Thickness Calculation Module
Pipeline Yield Stress And Tensile Stress Calculation Module
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CALCULATOR MODULE : DNVGL ST F101 Submarine Pipeline Collapse Pressure ±

Calculate DNVGL-ST-F101 submarine pipeline external collapse pressure and propagating buckle pressure.

The external pressure should be calculated for the maximum water depth. Propagating buckles are only a problem if collapse has occurred. Buckle arrestors may be required to minimse the risk of propagating buckling.

Reference : DNVGL-ST-F101 : Submarine Pipeline Systems (Download from the DNVGL website)

Change Module :

DNVGL ST F101 Submarine Pipeline Axial Load Calculation Module
DNVGL ST F101 Submarine Pipeline Bend Allowable Stress Design (ASD) Calculation Module
DNVGL ST F101 Submarine Pipeline Carbon Equivalent Calculation Module
DNVGL ST F101 Submarine Pipeline Dent Depth Calculation Module
DNVGL ST F101 Submarine Pipeline Design Load Effect Calculation Module
DNVGL ST F101 Submarine Pipeline Design Pressure And Burst Pressure Calculation Module
DNVGL ST F101 Submarine Pipeline Expansion Spool Calculation Module
DNVGL ST F101 Submarine Pipeline Flotation Calculation Module
DNVGL ST F101 Submarine Pipeline Fluid Mass And Volume Calculation Module
DNVGL ST F101 Submarine Pipeline Fluid Velocity And Flowrate Calculation Module
DNVGL ST F101 Submarine Pipeline Hoop Stress Calculation Module
DNVGL ST F101 Submarine Pipeline Hydrotest Pressure Calculation Module
DNVGL ST F101 Submarine Pipeline Incidental Pressure Calculation Module
DNVGL ST F101 Submarine Pipeline Line Pipe Schedule Calculation Module
DNVGL ST F101 Submarine Pipeline Local Buckling Calculation Module
DNVGL ST F101 Submarine Pipeline Mass And Weight Calculation Module
DNVGL ST F101 Submarine Pipeline Ovality Calculation Module
DNVGL ST F101 Submarine Pipeline Temperature Derating Calculation Module
DNVGL ST F101 Submarine Pipeline Tolerances Calculation Module
DNVGL ST F101 Submarine Pipeline Transition Length At Code Break Calculation Module
DNVGL ST F101 Submarine Pipeline Wall Thickness Calculation Module
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CALCULATOR MODULE : API RP 1111 Pipeline Collapse Pressure ±

Calculate API RP 1111 limit state pipeline external collapse pressure and propagating buckle pressure.

The external pressure should be calcuated for the maximum water depth (highest astronomical tide plus storm surge). The internal pressure should be the maximum sustainable pressure (normally zero).

Reference : API RP 1111 : Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon Pipelines (Limit State Design) (2011)

Change Module :

API RP 1111 Pipeline Axial Load Calculation Module
API RP 1111 Pipeline Burst Pressure Calculation Module
API RP 1111 Pipeline Combined Loading Calculation Module
API RP 1111 Pipeline Design Pressure Calculation Module
API RP 1111 Pipeline Fluid Velocity And Flow Rate Calculation Module
API RP 1111 Pipeline Fluid Volume And Mass Calculation Module
API RP 1111 Pipeline Hoop Stress Calculation Module
API RP 1111 Pipeline Limit State Design Line Pipe Schedule Calculation Module
API RP 1111 Pipeline Local Pressure Calculation Module
API RP 1111 Pipeline Mass And Weight Calculation Module
API RP 1111 Pipeline Ovality Calculation Module
API RP 1111 Pipeline Temperature Derating Calculation Module
API RP 1111 Pipeline Test Pressure Calculation Module
API RP 1111 Pipeline Wall Thickness Calculation Module
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CALCULATOR MODULE : AS 2885.1 Pipeline Collapse Pressure ±

Calculate AS 2885.1 pipeline collapse pressure and collapse water depth for wet pipeline sections.

Collapse pressure checks are only required for wet pipeline sections, or other cases where external pressure is applied.

Reference : Australian Standard AS 2885.1 : Pipelines - Gas And Liquid Petroleum Part 1 : Design And Construction (2015)

Change Module :

AS 2885.1 Gas And Liquid Pipeline Schedule Calculation Module
AS 2885.1 Pipeline Allowable Stress Calculation Module
AS 2885.1 Pipeline Bend Thickness Calculation Module
AS 2885.1 Pipeline Bolt Torque Calculation Module
AS 2885.1 Pipeline Branch Reinforcement Calculation Module
AS 2885.1 Pipeline Cold Bend Buckle Calculation Module
AS 2885.1 Pipeline Combined Stress Calculation Module
AS 2885.1 Pipeline Design Pressure Calculation Module
AS 2885.1 Pipeline Fatigue Stress Calculation Module
AS 2885.1 Pipeline Fluid Velocity And Flow Rate Calculation Module
AS 2885.1 Pipeline Fluid Volume And Mass Calculation Module
AS 2885.1 Pipeline Fracture Toughness Calculation Module
AS 2885.1 Pipeline Hoop Stress Calculation Module
AS 2885.1 Pipeline Hydrotest Pressure Calculation Module
AS 2885.1 Pipeline Local Pressure Calculation Module
AS 2885.1 Pipeline Mass And Weight Calculation Module
AS 2885.1 Pipeline Maximum Velocity Calculation Module
AS 2885.1 Pipeline Road And Rail Crossing Calculation Module
AS 2885.1 Pipeline Wall Thickness Calculation Module
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