DS DS/EN ISO 10427-2
DS DSEN SO 10427-2 2004-JUL-29 Petroleum and natural gas ndustres - Equpment for well cementng - Part 2 Centralzer placement and stop-collar testng
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This part of ISO 10427 provides calculations for determining centralizer spacing, based on centralizer performance and desired standoff, in deviated and dogleg holes in wells for the petroleum and natural gas industries. It also provides a procedure for testing stop collars and reporting test results.