New Guide Helps Operators and Service Companies Understand API Testing

NEWS New Guide Helps Operators and Service Companies Understand API Testing

Understanding API testing is critical for anyone responsible for specifying, purchasing, or verifying centralizers and stop collars. Yet, navigating the technical standards and interpreting test results can be challenging—especially when performance claims vary between manufacturers.

To provide clarity, Centek has published An Operator’s Guide to API Testing for Centralizers and Stop Collars—a practical, accessible resource for drilling professionals, procurement teams, and service providers.

Why this guide matters

The API defines the test protocols and performance standards that centralizers and stop collars must meet to ensure they function effectively downhole. These components play a vital role in supporting zonal isolation and overall well integrity. But without a clear understanding of the standard, it can be difficult to evaluate product performance and ensure compliance.

This guide demystifies the API 10D test process and helps readers understand what’s behind the numbers in a test report.

Who should read it?

This guide is designed for anyone involved in selecting, supplying, or evaluating centralizers and stop collars, including:

  • Operators and drilling engineers responsible for wellbore integrity

  • Procurement professionals and supply chain teams sourcing casing accessories

  • Distributors and service companies providing casing equipment

  • QA/QC personnel and technical auditors reviewing product compliance and documentation

What’s inside?

The guide provides a comprehensive but easy-to-follow overview of:

API 10D test types – what each test measures and why it matters
How to interpret test results and assess their relevance for your application
Reporting and documentation – what should be included in a compliant test report
What to ask your manufacturer or supplier to verify compliance and performance
Insights into the impact of testing on downhole reliability
Common misconceptions and challenges when comparing products across vendors

Take the guesswork out of centralizer testing

With increased pressure to ensure well integrity and performance, operators and service companies can’t afford to rely on assumptions or generic product claims. This guide empowers teams to ask the right questions, interpret the right data, and ultimately make better decisions.

📥 Download An Operator’s Guide to API Testing for Centralizers and Stop Collars here: