→It can be used in starting force test, running force test and restoring test for bow-spring casing centralizer and also for centralizer placement and stop-collar testing.
→Spring casing centralizer includes: high performance spring centralizer, solid centralizer, rigid centralizer for well cementing, whole stamping rigid centralizer, welded rigid centralizer, resin rigid centralizer, cast aluminium rigid centralizer, downhole well oil pipe centralizer, stop collar, roller centralizer, vertical well, highly-deviated well, single segmental spring leaf, double segmental spring leaf, three segmental leaf.
→ISO10427-1:2001 Petroleum and natural gas industries-Casing centralizers-Part1：Bow-spring casing centralizers；
→ISO10427-2:2004Petroleum and natural gas industries-Equipment for well cementing-Part2：Centralizer placement and stop-collar testing；
→ISO11960:2001 Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells；
For details, please check the following links: