U-Tube Calculations /10 0 votes, 0 avg 1 Created on March 09, 2023 U-Tube Calculations 1 / 10 A slug is displaced into the drill string and the well is lined up on the trip tank. How much mud would return after the slug falls? Slug volume = 45 bbls Slug density = 14.0 ppg Mud Weight = 11.2 ppg Pipe Capacity = 0.01776 bbl/ft Annular Capacity = 0.0505 bbl/ft Well depth = 7000 ft TVD / 8500 ft MD 36 bbls 630.6 bbls 788.3 bbls 56.3 bbls 2 / 10 A slug is displaced into the drill string and the well is lined up on the trip tank. How much mud would return after the slug falls? Slug volume = 50 bbls Slug density = 13.5 ppg Mud Weight = 10.1 ppg Pipe Capacity = 0.01776 bbl/ft Annular Capacity = 0.0505 bbl/ft Well depth = 8200 ft TVD / 9800 ft MD 0.89 bbls 50 bbls 37.4 bbls 66.8 bbls 3 / 10 The well was shut-in. What would be the casing pressure in this static u-tube? Drill pipe pressure (DPP) = 0 psi (no float in the drill string) Well depth = 5500 ft TVD / 8200 ft MD Drill string if full of 9.8 ppg fluid Annulus is full of 6.2 ppg mud/gas mixture 1773 psi 1029 psi 2801 psi 1535 psi 4 / 10 After pumping a slug into the drill string, the well is closed before the slug falls. What u-tube pressure would be seen in the casing gauge? Mud Weight = 11 ppg Slug Weight = 15.5 ppg Slug Length = 1000 ft Well Depth = 7500 ft TVD / 11000 ft MD 1755 psi 234 psi 375 psi 4290 psi 5 / 10 A slug is displaced into the drill string and the well is lined up on the trip tank. How much mud would return after the slug falls? Slug volume = 35 bbls Slug density = 15.1 ppg Mud Weight = 10.1 ppg Pipe Capacity = 0.01776 bbl/ft Annular Capacity = 0.0505 bbl/ft Well depth = 7000 ft TVD / 8500 ft MD 35 bbls 70.3 bbls 85.3 bbls 52.3 bbls 6 / 10 The well was shut-in. Well Information: Drill pipe pressure (DPP) = 0 psi (no float in the drill string) Well depth = 8800 ft TVD / 9899 ft MD Drill string if full of 11 ppg fluid Annulus is full of 6.0 ppg mud/gas mixture What would be the casing pressure in this static u-tube? 2746 psi 2288 psi 5034 psi 2574 psi 7 / 10 What additional mud volume would return after the slug falls? Slug Information = 50 bbl / 14.0 ppg MW = 10.2 ppg 18.6 bbls 50 bbls 36.4 bbls 86.6 bbls 8 / 10 After pumping a slug into the drill string, the well is closed before the slug falls. What u-tube pressure would be seen in the casing gauge? Mud Weight = 12.3 ppg Slug Weight = 14.8 ppg Slug Length = 1350 ft Well Depth = 11000 ft TVD / 13000 ft MD 252 psi 176 psi 1690 psi 7036 psi 9 / 10 Consider the information below to answer the following question: Slug Information = 40 bbl / 15.0 ppg MW = 11.5 ppg What mud volume would return after the slug falls? (In addition to the slug volume pumped) 12.2 bbls 40 bbls 30.6 bbls 92.2 bbls 10 / 10 The well was shut-in. Well Information: Drill pipe pressure (DPP) = 0 psi (no float in the drill string) Well depth = 7500 ft TVD / 10 000 ft MD Drill string if full of 10 ppg fluid Annulus is full of 6.5 ppg mud/gas mixture What would be the casing pressure in this static u-tube? 2535 psi 1365 psi 3900 psi 1820 psi Your score is LinkedIn Facebook Twitter VKontakte 0% Restart quiz Please rate this quiz Send feedback
