General Industry Term

tvd ss meaning in oil and gas

Definition

true vertical depth sub sea

tvd ss means true vertical depth sub sea. Vertical borehole depth (meters or feet) below sea level. May differ from measured depth (MD) due to borehole deviation. Datum (sealevel) also differs from measured depth KB…

Vertical borehole depth (meters or feet) below sea level. May differ from measured depth (MD) due to borehole deviation. Datum (sealevel) also differs from measured depth KB (kelly bushing) or RT (rotary table).

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