گرادیان فشار

نحوه محاسبه گرادیان فشار

Pressure gradient, psi/ft, using mud weight, ppg
psi/ft = mud weight, ppg x 0.052

Example: 12 ppg fluid
psi/ft = 12 ppg x 0.052
psi/ft = 0.624

Pressure gradient, psi/ft, using mud weight, lb/ft³
psi/ft = mud weight, lb/ft³ x 0.006944
Example: 100lb/ft³ fluid
psi/ft = 100 lb/ft³ x 0.006944
psi/ft = 0.6944

OR

psi/ft = mud weight, Ib/ft³ + 144
Example: 100lb/ft³ fluid
psi/ft = 10O1b/ft³+ 144
psi/ft = 0.6944

Pressure gradient, psi/ft, using mud weight, specific gravity (SG) pdft = mud weight, SG x 0.433
Example: 1SG fluid
psi/ft = 1SG x 0.433
psi/ft = 0.433