Table of Contents

1 Introduction
2 Description of Rigid and Solid Centralizers
   2.1 Rigid Centralizer
   2.2 Semi-rigid Centralizer
   2.3 Solid Centralizer
3 Solid and Rigid Centralizer Testing Methods
4 Measurement of Friction Factor Using Pin-on-Disk Method
   4.1 Test Apparatus and Description of the Test
   4.2 Test Parameters
   4.3 Example Test Parameters
   4.4 Calculating the Friction Factor
5 Measurement of Wear Using the Pin-on-Disk Method
   5.1 Test Description
   5.2 Example Test Parameters
6 Impact Test Consisting of Dynamic Loading Applicable to
   Hinged-type Rigid Centralizers
   6.1 Test Apparatus and Description of the Test
   6.2 Significant Test Parameters
   6.3 Recommended Test Parameters for Different Size
       Centralizers
7 Static Axial Loading Simulating Running the Centralizer Through
   Restrictions
   7.1 Test Apparatus and Description of the Tests
   7.2 Testing the Centralizer Through the Recommended Hole
       Diameter
   7.3 Total Circumferential Loading Test (Rigid Centralizer Only)
   7.4 Partial Circumferential Loading Test (Rigid Centralizer Only)
   7.5 Reporting of Test Results
8 Test to Simulate Side Loading of the Centralizer
   8.1 Test Apparatus
   8.2 Test Procedure
9 Test to Simulate Static Loading of Centralizer and Stop Collar
   9.1 Test Apparatus
   9.2 Test Procedure
10 Pull-apart Test for Centralizers with End Rings

Abstract

Provides the industry with methods for testing rigid and solid centralizers.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN