Ex-0039_well_intervention_-_english_api_formula_sheet.pdf
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Well Intervention - English API Formula Sheet Well Intervention Pressure Control Abbreviations used in this document
bbl/ft bbl/min bbl/stroke BHP ft MD ppg psi psi/ft SIWHP TVD 0.052
1.
= = = = = = = = = = = =
Barrels (US) per foot Barrels (US) per minute Barrels (US) per stroke Bottom Hole Pressure Feet Measured Depth Pounds per gallon Pounds per square inch Pound per square inch per foot Shut in Well Head Pressure True Vertical Depth Constant factor
PRESSURE GRADIENT (psi/ft) Fluid Density (ppg) x 0.052
2.
FLUID DENSITY (ppg) Pressure (psi) ÷ TVD (ft) ÷ 0.052 or
3.
Pressure (psi) TVD (ft) x 0.052
HYDROSTATIC PRESSURE (psi) Fluid Density (ppg) x 0.052 x TVD (ft) or Pressure Gradient (psi/ft) x TVD (ft)
4.
FORMATION PRESSURE (PSI) Hydrostatic Pressure (psi) + SIWHP (psi)
5.
TOTAL PRESSURE AT A GIVEN DEPTH IN A SHUT IN WELLBORE (psi) (WHERE BHP = FORMATION PRESSURE) Hydrostatic Pressure of Gas (psi) + Hydrostatic Pressure of Oil (psi) + SIWHP (psi)
April 2016
EX-0039
Version 1.0
Page 1 of 2
Printed copies are UNCONTROLLED: It is the user’s responsibility to verify printed material against the controlled document
Well Intervention - English API Formula Sheet 6.
TIME TO PUMP (minutes) a. Tubing b. Annulus
Tubing Capacity (bbl/ft) x MD (ft) Pump Rate (bbl/min) Annulus Capacity (bbl/ft) x MD (ft) Pump Rate (bbl/min)
7. STROKES TO DISPLACE (Strokes) a. Tubing b. Annulus
April 2016
Tubing Capacity (bbl/ft) x MD (ft) Pump Displacement (bbl/stroke) Annulus Capacity (bbl/ft) x MD (ft) Pump Displacement (bbl/stroke)
EX-0039
Version 1.0
Page 2 of 2
Printed copies are UNCONTROLLED: It is the user’s responsibility to verify printed material against the controlled document
bbl/ft bbl/min bbl/stroke BHP ft MD ppg psi psi/ft SIWHP TVD 0.052
1.
= = = = = = = = = = = =
Barrels (US) per foot Barrels (US) per minute Barrels (US) per stroke Bottom Hole Pressure Feet Measured Depth Pounds per gallon Pounds per square inch Pound per square inch per foot Shut in Well Head Pressure True Vertical Depth Constant factor
PRESSURE GRADIENT (psi/ft) Fluid Density (ppg) x 0.052
2.
FLUID DENSITY (ppg) Pressure (psi) ÷ TVD (ft) ÷ 0.052 or
3.
Pressure (psi) TVD (ft) x 0.052
HYDROSTATIC PRESSURE (psi) Fluid Density (ppg) x 0.052 x TVD (ft) or Pressure Gradient (psi/ft) x TVD (ft)
4.
FORMATION PRESSURE (PSI) Hydrostatic Pressure (psi) + SIWHP (psi)
5.
TOTAL PRESSURE AT A GIVEN DEPTH IN A SHUT IN WELLBORE (psi) (WHERE BHP = FORMATION PRESSURE) Hydrostatic Pressure of Gas (psi) + Hydrostatic Pressure of Oil (psi) + SIWHP (psi)
April 2016
EX-0039
Version 1.0
Page 1 of 2
Printed copies are UNCONTROLLED: It is the user’s responsibility to verify printed material against the controlled document
Well Intervention - English API Formula Sheet 6.
TIME TO PUMP (minutes) a. Tubing b. Annulus
Tubing Capacity (bbl/ft) x MD (ft) Pump Rate (bbl/min) Annulus Capacity (bbl/ft) x MD (ft) Pump Rate (bbl/min)
7. STROKES TO DISPLACE (Strokes) a. Tubing b. Annulus
April 2016
Tubing Capacity (bbl/ft) x MD (ft) Pump Displacement (bbl/stroke) Annulus Capacity (bbl/ft) x MD (ft) Pump Displacement (bbl/stroke)
EX-0039
Version 1.0
Page 2 of 2
Printed copies are UNCONTROLLED: It is the user’s responsibility to verify printed material against the controlled document
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