The primary objectives for centralization design (that is the number, type and spacing of cementing centralizers) should satisfy both the need to get the casing to the bottom as well as zonal isolation. However, despite this being apparently simple and obvious, cementers do not seem to appreciate the fact that without the casing at target […]
Centralizer sub optimizes cementing performance
Before we get into the topic of centralizers, I can probably say that I have only personally met and worked with one true casing hardware expert in my 20-year long career. That was 14 or 16 years ago. In those days in Venezuela, it was common for this prominent casing hardware manufacturer to bring experts […]
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