Abstract:The nature of pore pressure profile on deepwater Gulf of Mexico wells dictates the need for hole enlargement while drilling (HEWD) on several intervals. HEWD is a well-established practice in deepwater GoM and allows casing programs with smaller ID clearance between consecutive casing strings.
Although the reservoir section is typically drilled as a single diameter, HEWD is required for many of the larger upper hole sections. However, in some cases drilling conditions require the operator to dev… Show more
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