Term
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Definition
| HSP = Mud Density (ppg) x .052 x TVD (ft) |
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Term
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Definition
Mud Gradient (psi/ft) = Mud Density (ppg) x .052
Formation Fracture Gradient psi/ft = Maximum Allowable Mud Density (ppg) x 0.052
Influx Gradient (psi/ft) = Mud gradient (psi/ft) (SICP - SIDPP) / True vertical influx height (ft) |
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Term
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Definition
Mud Density ppg = Pressure psi/.052/TVD ft
Mud Density ppg = Pressure Gradient psi/ft / .052
Kill Mud Density ppg = SIDPP / .052 / TVD ft = OMD ppg |
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Term
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Definition
TVD ft = HSP psi / .052 / Mud Density
Influx length in hole ft = Pit Gain bbl / Annular Capacity |
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Term
| Maximum Allowable Mud Density & Equivalent Circulating Density |
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Definition
Leak off pressure psi / .052/ TVD of shoe ft + Test Fluid Density ppg
MAMD ppg = Total Pressures @ Shoe psi / .052 / TVD of Shoe ft
ECD ppg = Annular Pressure Loss psi / .052 / Hole TVD ft = OMD ppg |
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Term
| Maximum allowable Annular Surface Pressure |
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Definition
Before Kill
MAASP psi = (MAMD ppg - Current Density ppg) x .052 x Shoe TVD ft
After Kill
MAASP psi = (MAMD ppg - Current Density ppg) x .052 x Shoe TVD ft |
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Term
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Definition
| Formation Pressure psi = HSP psi + SIDPP psi |
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