Who turn off while the pressure out of the well bore to the surface without damagingThe original form of pressure
Procedures:
A. SIRKULATING SYSTEM:Pumping kill fluid through Annulus / TBG DNG and rate pressurewho is stable and fluid control who kill weight fluid out SHG antecedentand pumped out the same reply
B. BULL HEAD / BUMP DOWN:Pumping kill fluid through Annulus / TBG DNG and rate pressurewho controls the small and below the formation fracture pressure of the presswho pumped fluid SHG formation depth reached
C. IF LOST WELL BORE Circulation / TAKE IN FLUID:Discussed with the AMT for the use of additives oranother chemical (polymer / zone lock / lost circulation material)
DETERMINE HOW TO KILL WEIGHT FLUID
Kill Weight Fluid = (X Press Gradient Top Perforation) + (SIP + OB) X 144Top PerforationOver Balance = OB = Safety Factor = 10 psiGradient Press = 0443 or 0443 X Specific Gravity FluidExample: SIP = 80 psi, Top perf = 720 ftGradient press = 0443, OB = 10 psiKill a Heavy Fluid in need:(0433 x 720) + (80 + 10) x 144720(312 + 90) x 144)72057 853: 720 = 80.35 pcf
IF THE UNIT PPG
W1 = MW + DW + SFWhereW1 = KILL HEAVY FLUIDDW = ADDITION OF WORK OVER HEAVY FLUIDSAFETY FACTOR SF = (0.1 - 0.5 ppg)W1 = 8.34 + (SIP: (0052 x D) + SF ORW1 = (Pf: (0052 x D)) + SFPf = Ph + SIP
KILL THE COMPLETION FLUID PPG
ExampleSIP: 150 PSITOP INTERVAL: 2500 FTHEN KILL THE FLUID REQUIRED
W1 = MW + (SIP: (0052 x D) + SF= 8.34 + (150: (0052 X 2500)) + 0.5= 8.34 + (150: 130) + 0.5= 8.34 + 1.15 + 0.5= 9.9 PPG= 10 PPG
KILL THE REQUIRED NUMBER OF FLUID
A. : (Vol + Vol circulating TBG CSG Systems)In the measurement of the Top perforation
B. Bull Head / Bump Down: (TBG Vol + Vol CSG)
In measuring the Bottom perforation
C. Maximum pumping pressure:
Fracture pressure - pressure Hidrostatic
MAXIMUM PRESSURE PUMP? REQUIRED
Formation Fracture Pressure - Kill Fluid Hyd.PressFRACT PRESSURE - PRESSURE hydrostatic
Pressure Gradient = Fract Fract x Top perforation
Example: Top perforation = 2500 ', Weight = 80 pcf Kill FluidKill fluid press.gradient = 0494 (see list)
Max. Pressure Pumps = (1 x 2500) - (0494 x 2500)= 2500 - 1235 = 1265 psi
Procedures:
A. SIRKULATING SYSTEM:Pumping kill fluid through Annulus / TBG DNG and rate pressurewho is stable and fluid control who kill weight fluid out SHG antecedentand pumped out the same reply
B. BULL HEAD / BUMP DOWN:Pumping kill fluid through Annulus / TBG DNG and rate pressurewho controls the small and below the formation fracture pressure of the presswho pumped fluid SHG formation depth reached
C. IF LOST WELL BORE Circulation / TAKE IN FLUID:Discussed with the AMT for the use of additives oranother chemical (polymer / zone lock / lost circulation material)
DETERMINE HOW TO KILL WEIGHT FLUID
Kill Weight Fluid = (X Press Gradient Top Perforation) + (SIP + OB) X 144Top PerforationOver Balance = OB = Safety Factor = 10 psiGradient Press = 0443 or 0443 X Specific Gravity FluidExample: SIP = 80 psi, Top perf = 720 ftGradient press = 0443, OB = 10 psiKill a Heavy Fluid in need:(0433 x 720) + (80 + 10) x 144720(312 + 90) x 144)72057 853: 720 = 80.35 pcf
IF THE UNIT PPG
W1 = MW + DW + SFWhereW1 = KILL HEAVY FLUIDDW = ADDITION OF WORK OVER HEAVY FLUIDSAFETY FACTOR SF = (0.1 - 0.5 ppg)W1 = 8.34 + (SIP: (0052 x D) + SF ORW1 = (Pf: (0052 x D)) + SFPf = Ph + SIP
KILL THE COMPLETION FLUID PPG
ExampleSIP: 150 PSITOP INTERVAL: 2500 FTHEN KILL THE FLUID REQUIRED
W1 = MW + (SIP: (0052 x D) + SF= 8.34 + (150: (0052 X 2500)) + 0.5= 8.34 + (150: 130) + 0.5= 8.34 + 1.15 + 0.5= 9.9 PPG= 10 PPG
KILL THE REQUIRED NUMBER OF FLUID
A. : (Vol + Vol circulating TBG CSG Systems)In the measurement of the Top perforation
B. Bull Head / Bump Down: (TBG Vol + Vol CSG)
In measuring the Bottom perforation
C. Maximum pumping pressure:
Fracture pressure - pressure Hidrostatic
MAXIMUM PRESSURE PUMP? REQUIRED
Formation Fracture Pressure - Kill Fluid Hyd.PressFRACT PRESSURE - PRESSURE hydrostatic
Pressure Gradient = Fract Fract x Top perforation
Example: Top perforation = 2500 ', Weight = 80 pcf Kill FluidKill fluid press.gradient = 0494 (see list)
Max. Pressure Pumps = (1 x 2500) - (0494 x 2500)= 2500 - 1235 = 1265 psi
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