The design line displayed and the casing

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Unformatted text preview: n. Figure 24 shows a general view of this load line. 177 Fig.24 Burst Design(Limited Kick) Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 178 89 The minimum backup is calculated and drawn after the load line is established. The design line displayed and the casing designed(Fig.25). Fig.25 Burst Design-Limited Kick Collapse Design The collapse load for intermediated casing is imposed by the fluid in the annular space, assumed to be the heaviest mud weight the string is projected to be run in and the cement used(Fig.26). The resultant collapse loading is the backup line subtracted form the load line(Fig.27). Application of a collapse design factor results in the collapse design line(Fig.28). The collapse resistances of the sections dictated by burst considerations should now be plotted and checked. When the checking and necessary upgrading are completed, the result is a design of weights, grades, and section lengths which satisfy the burst and collapse maximum load(Fig.29). Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 90 Fig.26 Collapse Design Fig.28 Collapse Fig.27 Collapse Design Fig.29 Collapse Co...
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