Extended-Reach Drilling (ERD) Well Campaign
Land casing in long ERD section where rotation is a challenge
Landing casing to total depth (TD) during extended-reach drilling (ERD) campaigns can be challenging. When torque and rig related limitations prevent casing rotation in long horizontal sections, downhole tools must be robust enough to withstand longer exposure times.
A major operator in South Asia faced challenges during an ERD campaign. Long horizontal sections and wellbore instability limited the casing from reaching TD, requiring reciprocation and washing through tight spots to reach the casing to bottom.
hours casing run with no impact to tool integrity
Despite wellbore instability, TD was successfully achieved in a challenging ERD campaign. The Halliburton RPT reamer shoe reliably landed casing to well depth in hostile conditions. Casing was run for more than 36 hours without affecting the build integrity of the RPT reamer shoe or function of the non-return valve. The successful combination of Halliburton RPT reamer shoe and Protech II centralization helped reduce rig time, prevent unforeseen costs associated with nonproductive time (NPT), and eliminate the need to procure expensive reamer technologies, saving the operator USD 375K.
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