Unformatted text preview: ring when it is cemented must be
determined and graphically displayed.
162 Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 81 A cemented tension line must be
visualized, calculated and graphically
displayed. This line is different from the
running tension line only by the
difference in the net bottom buoyant
force when cement is outside the string
and mud inside(Fig.16 and 17)
163 Fig.16 Fig.17 Biaxial Design: Burst Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 164 82 The cemented tension line is used to
correct the burst and collapse strengths
by the effect of the indicated axial loads.
See Appendix A for Biaxial correction
procedure. The corrected designs are
shown in Fig.18a and Fig. 18b. 165 Fig.18a Biaxial Design: Collapse Fig.18b Biaxial Design: Burst Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 166 83 Intermediated Casing Design
Burst design by “ Maximum Load” concept for
intermediate casing can be implemented in one of
three shoe design:
1. The casing string filled with dry gas, and
pressures controlled by th...
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- Fall '14
- Boyun Guo, Ali Ghalambor