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Casing design презентация
Содержание
- 2. Casing Design Akram Miriyev, May 2014
- 3. About Me Studied Petroleum and Natural Gas
- 4. What is Casing ? 10/2/2014 Akram Miriyev
- 5. Key Topics Properties of Casing API specifications
- 6. Properties of Casing Dimensional Properties 10/2/2014 Akram Miriyev
- 7. Properties of casing Drift Diameter Weight
- 8. Properties of casing Material properties. API specifies
- 9. API Specifications Standardization institute Several publications to
- 10. Casing Connections Casing Strings are connected together
- 11. API connection (couplings) Short Thread Connection STC
- 12. Long thread connection Short Thread connection Long
- 13. Casing Connections Long & Short Thread connections
- 14. Casing Connections 10/2/2014 Akram Miriyev Reference : API 5B1 Buttress thread connection
- 15. Casing Connections 10/2/2014 Akram Miriyev Reference : API 5B1 Extreme Line Connection
- 16. Casing Connections 10/2/2014 Akram Miriyev Reference :
- 17. Ability to drill next hole section while
- 18. Casing Setting Depth Selection 10/2/2014 Akram Miriyev
- 19. Casing Setting Depth Selection 10/2/2014 Akram Miriyev Pore Pressure Fracture Gradient curve
- 20. Class Problem 1. 10/2/2014 Akram Miriyev
- 21. Casing Setting Depth Selection 10/2/2014 Akram Miriyev
- 22. Strength Properties of Casing 10/2/2014 Akram Miriyev
- 23. Burst , Collapse Tensile Design 10/2/2014 Akram Miriyev ID
- 24. Burst , Collapse Tensile Design Burst
- 25. Burst , Collapse Tensile Design Collapse 10/2/2014 Akram Miriyev
- 26. Burst , Collapse Tensile Design 10/2/2014 Akram Miriyev
- 27. Burst , Collapse Tensile Design 10/2/2014 Akram Miriyev
- 28. Burst , Collapse Tensile Design 10/2/2014 Akram Miriyev
- 29. Class Problem 2. Calculate Collapse pressure for
- 30. Burst , Collapse Tensile Design Axial
Слайд 3About Me
Studied Petroleum and Natural Gas Engineering in METU 2006-2011
Working at
10/2/2014
Akram Miriyev
Слайд 4What is Casing ?
10/2/2014
Akram Miriyev
Main purpose of casing is to sustain
Слайд 5Key Topics
Properties of Casing
API specifications
Casing Connections
Casing Setting Depth Selection
PPFG curve
Class problem
Burst
Load Cases
Class Problem
10/2/2014
Akram Miriyev
Слайд 7Properties of casing
Drift Diameter
Weight of casing
Wall thickness
Wall-thickness= (OD-ID)/2
10/2/2014
Akram Miriyev
Слайд 8Properties of casing
Material properties.
API specifies grades to material of casing with
For example : N - 80
10/2/2014
Akram Miriyev
Слайд 9API Specifications
Standardization institute
Several publications to standardize equipment and procedures.
Casing Related Publications
API SPEC 5CT – Specification for casing and tubing
API STD 5B
API RP 5A5
API RP 5B1
API RP 5C1
API RP 5C5
API BULL 5C2 – Bulletin on performance properties of casing and tubing
API BULL 5C3 – Bulletin on formulas and calculations for casing, tubing, drill pipe and line properties.
10/2/2014
Akram Miriyev
Слайд 10Casing Connections
Casing Strings are connected together by connections
API
Premium
Gastight
Metal-to-Metal seal
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Akram Miriyev
Слайд 11API connection (couplings)
Short Thread Connection STC
Long Thread Connection LTC
Buttress Thread
Extreme
10/2/2014
Akram Miriyev
Casing Connections
Слайд 12Long thread connection
Short Thread connection
Long thread connection has better sealing capacity.
Short thread connection has 8 thread per inch
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Akram Miriyev
Casing Connections
Слайд 13Casing Connections
Long & Short Thread connections are as round type.
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Akram Miriyev
Reference
Слайд 16Casing Connections
10/2/2014
Akram Miriyev
Reference : API 5B1
Metal to Metal and Gas tight
Слайд 17Ability to drill next hole section while maintaining stable wellbore.
Consider formation
PPFG = Pore Pressure & Fracture Gradient
Consider also influx circulation out (kick) as a well control scenario.
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Akram Miriyev
Casing Setting Depth Selection
Слайд 20Class Problem 1.
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Akram Miriyev
Plot the PPFG curve on cartesian sheet
Find Casing
Calculate PP and FG at each shoe
Select all possible casing sizes based on production tubing size 4 ½” and 5”
Слайд 22Strength Properties of Casing
10/2/2014
Akram Miriyev
If we load any metal specimen slowly
-From origin to point A obeys hook law
-From A to B slightly change in linear relationship between stress&strain.
-Point B called Yield Point
-From B to C stress strain relationship becomes nonlinear. Hence, lead to plastic deformation.
-From C to D called “necking”, cross sectional area of the specimen is decreasing.
From D to E with little increase in stress specimen elongates (strain increases faster)
From E to F material strength increases then decreases until point F.
Point F is called rupture point or ultimate point
Слайд 29Class Problem 2.
Calculate Collapse pressure for pipe :
OD=7”
Weight = 26
Wall Thickness = 0.362”
P-110
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Akram Miriyev
Слайд 30Burst , Collapse Tensile Design
Axial Tension
Faxial tension = σyield
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Akram Miriyev
