OCTG Testing Services That Protect Well Integrity and Reduce Failure Risk
The integrity of Oil Country Tubular Goods (OCTG) is fundamental to safe, efficient drilling and production operations. Casing, tubing, and drill pipe are exposed to extreme downhole conditions – high pressure, corrosion, cyclic loading, and mechanical stress – where failure is not an option.
OTI provides OCTG testing services designed to give operators confidence that tubulars and connections are fit for service before they enter the field, helping reduce the risk of non‑productive time, integrity failures, and costly remediation.
Why OCTG Testing Matters Operationally
OCTG failures rarely start downhole – they start with:
- undetected material defects
- dimensional non‑conformance
- thread or connection issues
- inadequate verification against service conditions
Effective OCTG testing is about early risk identification, ensuring that tubulars meet both industry standards and operational requirements before they become part of a critical well barrier.
OTI’s testing approach focuses on providing clear, defensible results that support acceptance, rejection, or remediation decisions with confidence.
What OCTG Testing Involves
OCTG testing verifies the mechanical, chemical, and dimensional integrity of tubular products used in drilling and production.
Testing programmes are designed to:
- confirm compliance with API and international standards
- detect flaws, cracks, and weaknesses prior to deployment
- validate strength, toughness, and resistance to corrosion and fatigue
- support client‑specific and premium connection requirements
This ensures tubulars are suitable for their intended service conditions — not just compliant on paper.
OCTG Testing Capabilities
OTI provides comprehensive testing for casing, tubing, and drill pipe, with inspection scope aligned to risk, criticality, and operational exposure.
Non‑Destructive Testing (NDT)
- Ultrasonic Testing (UT)
Identifies internal and external defects, wall thickness variation, and laminar flaws that may compromise pressure integrity. - Magnetic Particle Inspection (MPI)
Detects surface and near‑surface cracking in ferromagnetic materials, particularly in threads, upset areas, and high‑stress zones. - Eddy Current Testing (ECT)
Locates surface‑breaking defects in conductive materials, supporting high‑throughput inspection where early crack detection is critical. - Visual and Dimensional Inspection
Assesses surface condition, thread integrity, dimensional compliance, and manufacturing defects that can impact make‑up, sealing, or service life.
Inspection techniques are selected to ensure defects that matter operationally are identified early.
Standards and Specifications We Test To
OTI’s OCTG testing services are aligned with recognised industry and international standards, including:
- API 5CT – Casing and tubing specifications
- API 5DP – Drill pipe specifications
- ISO 11960 and ISO 13679 – International OCTG and connection standards
We also support:
- client‑specific acceptance criteria
- premium and proprietary connection requirements
- critical service and high‑load applications
This ensures test results are relevant to both regulatory compliance and real‑world operating conditions.
Clear Results That Support Acceptance Decisions
Testing only adds value when results are clear, traceable, and usable.
OTI provides:
- accurate inspection and test reporting
- clear identification of non‑conformances
- documentation suitable for audits, quality systems, and asset records
This allows operators and QA/QC teams to make confident acceptance, rejection, or remediation decisions without ambiguity.
Delivered by Experienced, Certified Personnel
All OCTG testing is carried out by qualified and experienced technicians who understand how testing outcomes affect drilling schedules, well integrity, and operational risk.
Our teams work closely with:
- operators
- drilling contractors
- tubular suppliers and service companies
to ensure testing programmes are efficient, consistent, and aligned with project priorities.
If you’re responsible for tubular integrity or acceptance and need OCTG testing you can rely on, OTI provides testing services designed to reduce risk, support compliance, and protect well integrity.