PetroCalcHubFree
Drilling EngineeringDrilling Operations and Economics

Hydromechanical Specific Energy

HMSE=WOBAb+120(3.142)NT+1154ηPbQAbROPHMSE=\frac{WOB}{A_b}+\frac{120(3.142)NT+1154\eta P_bQ}{A_bROP}

Tabular solver

Run the same equation across multiple cases and compare results in one table.

CaseWOBlbfA_bft^2Nrev/minTft*lbfetadimensionlessP_bpsiQgpmROPft/hResultAction
1Pending
2Pending
3Pending