Production Riser - Top Tension

Top-tension requirement for a production riser given wet weight, internal content weight and safety margin - OSV / FPSO design input.

RiserTop tensionOffshore

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

T_{top} = (w_{wet} + w_{content}) \cdot L \cdot (1 + m)

Symbol	Meaning	Unit
$w_{wet}$	Riser wet weight per unit length	kN/m
$L$	Water depth	m

Source: API Spec 2RD

Top-tension requirement for a production riser given wet weight, internal content weight and safety margin - OSV / FPSO design input.