Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3...
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Transcript of Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3...
![Page 1: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/1.jpg)
Petroleum Engineering 406
Lesson 5
Well Control
![Page 2: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/2.jpg)
Read
• Well Control Manual– Chapter 9
• Homework 3– Due Feb. 10, 1999
![Page 3: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/3.jpg)
Content
• Casing Seat Selection– Land and shallow water
• Conventional
• Based on X ppg kick
• Based on X ppg kick and X bbl gain
![Page 4: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/4.jpg)
Content
• Casing Seat Selection– Deep Water
![Page 5: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/5.jpg)
Content
• Casing Seat Selection– Riserless
![Page 6: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/6.jpg)
Land and shallow water
• Plot Pore Pressure and Fracture Gradient curves– Pore pressure from Eaton– Resistivity log
• FP=OB-(OB-FPn)*(Cn/Co)^1.2
– Conductivity• FP=OB-(OB-FPn)*(Ro/Rn)^1.2
– Sonic• FP=OB-(OB-FPn)*(Tn/To)^3
![Page 7: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/7.jpg)
Pore pressure from Eaton
– dc exponent• FP=OB-(OB-FPn)*(dc calculated/dc normal)^1.2
– FP = formation pressure,ppg– OB = overburden stress, ppg– FPn = Normal formation pressure, ppg
![Page 8: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/8.jpg)
Pore pressure from Eaton
– Ro = Shale resistivity from the well log, ohm-meters
– Rn = Shale resistivity from normal trend– Co = Shale conductivity from the well log– Cn = Shale conductivity from the normal line To = Shale travel time from the well log Tn = Shale travel time from the normal line– dc = Corrected d exponent
![Page 9: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/9.jpg)
Fracture Pressure from Eaton
• FG=(OB-FP)*[Poisson’s ratio/(1-Poisson’s ratio)]+FP
![Page 10: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/10.jpg)
Casing Seat Selection - Conventional
![Page 11: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/11.jpg)
Casing seat selection
Standard
0.5 ppg kick
0.5 ppg kick
200’ tallPore Pressure
Fracture Pressure
![Page 12: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/12.jpg)
DataMW 17.9 ppgKick Size 0.5 ppgKick Size 200 feet in annulusSICP 555.36 psi Standard .5 ppg 200 ft
Pore Fracture Pore Fracture Wellbore Wellbore WellboreDepth pressure pressure pressure pressure Press Pressure Pressureft ppg ppg psi psi psi psi psi
0 9 11.4 0 0 0 390 555.361000 9 12.2 468 634.4 930.8 1320.8 1486.168000 9 15.9 3744 6614.4 7446.4 7836.4 8001.768600 15.6 17.6 6976.32 7870.72 8004.88 8394.88 8560.249000 16.4 17.8 7675.2 8330.4 8377.2 8767.2 8932.56
15000 17.8 18.6 13884 14508 13962 14352 14517.36
![Page 13: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/13.jpg)
Deep Water Fracture Pressure
• Eaton’s Gulf Coast Overburden Gradient
![Page 14: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/14.jpg)
Deep Water Fracture Pressure
![Page 15: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/15.jpg)
Deep Water Fracture Pressure
![Page 16: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/16.jpg)
Deep Water Fracture Pressure
![Page 17: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/17.jpg)
OB Gradient below ML
![Page 18: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/18.jpg)
Deep Water Fracture Pressure
![Page 19: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/19.jpg)
Deep Water Casing Seat
![Page 20: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/20.jpg)
Deep Water Casing Seat
![Page 21: Petroleum Engineering 406 Lesson 5 Well Control. Read Well Control Manual –Chapter 9 Homework 3 –Due Feb. 10, 1999.](https://reader031.fdocuments.us/reader031/viewer/2022031909/56649e0d5503460f94af640a/html5/thumbnails/21.jpg)
Riserless Casing Seats