NDT
Conventional NDT
Radiography, penetrant, magnetic particle, ultrasonic, and visual testing for welds and components in shop and field — documented to API and ASME standards.
Industry
Midstream
Inspection services for gathering systems, compressor stations, and processing facilities.
SIS provides in-service and turnaround NDT for midstream operators — radiographic and conventional examination of pipe welds, pressure vessels, and structural steel across gathering systems, compressor stations, and gas processing plants. Crews work to API 1104, ASME Section V, and client-specific procedures across Texas, New Mexico, Oklahoma, and North Dakota.
Midstream operators depend on SIS for the inspection programs that keep gathering systems, compressor stations, and gas processing plants running safely. Our crews perform in-service and turnaround NDT across Texas, New Mexico, Oklahoma, and North Dakota.
We provide radiographic and conventional NDT examination of pipe welds, pressure vessels, and structural steel throughout the midstream value chain. All work is performed to API 1104, ASME Section V, and client-specific procedures.
SIS understands the production pressures midstream operators face. We staff and schedule to minimize downtime while delivering complete, audit-ready documentation on every scope.
Services used
Services this industry relies on
INTEGRITY / CORROSION / ASSESSMENT
Pipeline Integrity
Coating weld inspection, hardness and strength testing, and direct assessment programs for transmission and distribution pipeline systems.
MI
Mechanical Integrity
API 510, 570, and 653 mechanical integrity programs plus STI SP001 and isometric documentation for pressure vessels, piping, and storage tanks.
FAQ
Common questions
What midstream assets does SIS inspect?
SIS inspects gathering systems, compressor stations, and gas processing plants — including pipe welds, pressure vessels, and structural steel throughout the midstream value chain.
What codes govern SIS midstream inspection work?
All midstream work is performed to API 1104, ASME Section V, and client-specific procedures, delivered with complete, audit-ready documentation on every scope.
Where does SIS support midstream operators?
SIS crews perform in-service and turnaround NDT across Texas, New Mexico, Oklahoma, and North Dakota from eight regional offices.
How does SIS minimize downtime on midstream scopes?
SIS staffs and schedules around production pressures to minimize downtime, with same-day scope and availability turnaround for most requests.
Request a quote
Need Midstream on your next scope?
Tell us what you need inspected, where, and by when. We'll reply with scope and availability, usually same business day.