Case study: HDPE Water Pipeline Infrastructure Technical Assurance

Client: Due to commercial interests the client has requested to remain anonymous
Asset type: Pipeline
Location: Permian Basin

HDPE Water pipeline infrastructure - Technical assurance - Pipes - 634x200

Client background

Our client launched a 20-mile, $25 million infrastructure project to both save water and cut costs for the mutual benefit of themselves and the city of Odessa. The project is part of a wider initiative to conserve freshwater, providing millions of gallons of treated municipal wastewater for use in the clients operations; in return, the region will see a reduction in truck traffic and a regular revenue stream.

Business challenge

Water supply is critical to our clients drilling operations. The water is mixed with sand and other components to create a slurry used during for hydraulic fracturing. Utilising effluent reused water for this purpose reduces the need for freshwater and makes productive use of a non-potable resource.

Technical challenges included using High Density Polyethylene (HDPE) material for the Oil and Gas sector which are normally applicable to different codes and standards. The pipeline crosses environmentally sensitive areas and government regulations require assurance that no leaks of the process fluid will occur.

How Lloyd's Register helped

Lloyd's Register performed a technical review of key documents generated for the Water Supply Program. In addition the release valve spacing for the pipeline was reviewed in detail in order to ensure optimum spacing of the valves. Release valves are used to let air in and out of the pipelines for flow assurance and also provide an added level of safety.

We have a track record in the provision of technical assurance services to the oil & gas and other industries, with a proven technical-assurance methodology based on our established practice used on +100 verification/assurance projects. We work constructively and cooperatively with our clients and their vendors and play an important part providing independent assurance of assets.


  • Recommendations from the Technical Assurance review were implemented by the client for the pipeline.
  • Findings from the project were outlined in Technical Assurance reports, during meetings and workshops with the client and the company that designed the pipeline infrastructure.
  • Recommendations made by Lloyd's Register were implemented by the client for the pipeline.


  • Confidence that the pipeline met requirements of industry standards, guidelines, and best practices.
  • Documentation that can be given to a regulator confirming the infrastructure meets requirements of industry standards, guidelines, and best practices.
  • Confidence that the release valve locations selected are at the optimum locations.