Internal and external pressure profiles are generally independent and therefore separate design loads will be generated. The comparison of the internal and external pressure loads results in …

Dec 18, 2019 · The loading conditions that are always considered are Casing Burst, Casing Collapse, and Casing Tension. When appropriate, other loading conditions such as bending or …

Burst pressure represents the maximum internal pressure a casing can withstand before failure, while collapse pressure indicates the external pressure resistance from formation loads and …

Jan 24, 2025 · This load case models an internal and external pressure profile, which reflects the collapse load imparted on the casing after the plug has been bumped during the cement job …

Apr 1, 2025 · A: Burst pressure is the internal pressure that the casing can withstand before it ruptures. Collapse pressure is the external pressure that the casing can withstand before it …

Accordingly, tensile, burst and collapse strengths of casing are defined by the API as minimal performance properties (API Bul. 5C2, 1987; API Bul. 5C3, 1989). There are other loads, …

Burst and collapse loads are calculated by taking the difference between internal and external pressure profiles. If the load line is mainly positive, it is a burst load line, and if mainly …

As illustrated in Figure 9, the allowable APB is then the annular pressure that can be applied to the resultant hydrostatic loads without either collapsing the inner string or causing the outer...

Dec 9, 2019 · The worst-case of casing design conditions is when the casing is void of fluid, and the external force (collapse load) is the maximum mud weight when the Csg is run.

To make a preliminary selection of specific casing for a casing string, it is first necessary to apply design factors to the collapse and burst loads. The result is called a design load, and we …