Petroleum and natural gas industries. Equipment for well cementing - Centralizer placement and stop-collar testing LONG_TITLE BS 6870 is a series

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Petroleum and natural gas industries. Equipment for well cementing - Centralizer placement and stop-collar testing LONG_TITLE BS 6870 is a series1 Scope 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.