Quality & Craftsmanship - Four Recent Projects

FOUR RECENT PROJECTS

The following narrative summarizes four projects that were executed by Midwestern Contractors (MWC) over the last five years. Common to each of these projects is MWC's detailed project management, adherence to budget and schedule, safety management, quality assurance, and turnkey approach to our work.

In each of these projects MWC performed the pot holing, slot trenching, hydro and mechanical excavation, demolition, site layout, forming, reinforcement rod placement, concrete, structural steel, pipe fitting, welding, hydrostatic testing, instrumentation piping, conduit and control wiring, final tie-in welds, coating above and below ground and restoration. The last step is assisting our customers with commissioning and providing a thorough punch list to ensure that our customer receives a complete project.

All projects are completely documented with all customer drawings and specifications, electronic time sheets, and quality documents, like MTRs, as-builts, coating reports, hydrostatic test certs, etc. All this documentation, along with permits, 811 locates, photographic documentation is maintained in encrypted form in our Construction View Azure cloud application. We can retrieve these documents at any time and deliver them to our customers in the event of audits or requests for missing documents.

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Coalescer Replacement: (Pipe size 2" to 8") This project was a 100% design/build by MWC. It required demolition and disposal of two old filter skids, as well as cutting and capping the existing flare & drain connections - this involved working on the live flare header, as it could not be shut down. Then site prep, concrete foundations, fabrication, testing, & painting of inlet and outlet piping, installation of instrumentation, and commissioning. MWC self-performed all work

Dehydration unit and flare: (Pipe size 4" to 8") Demolition of the old unit occurred first, which had to be done carefully as old lines had to be preserved for tie-ins. Then concrete work for the foundations and pad. The de-hy skid was set. All piping was fabricated, hydrostatically tested and installed. Piping for the flare stack was also fabricated and installed along with the flare. All the other details are the same as above concerning coating, painting, etc. MWC had to design and install a dual-pressure compressed air distribution system for the numerous pneumatic-actuated valves on the skid as well.

Meter Surge Piping: (Pipe size 12" to 16") A surge valve was called for at a crude oil meter station. This required the installation of a surge valve interconnected with multiple lines at the main facility manifold, plus installation of a new below grade discharge line back to tankage. Completing this included hydro-excavation, on-site drying & management of spoils, piping fabrication, hydrotesting, and installation. Instrumentation, including nitrogen plenums, pressure transmitters, and Swagelok tubing were installed. Tie-ins were completed during a complicated 3-day outage with constant freezing rain - despite this, the project was complete on-time with no safety incidents at 8,000 man-hours. MWC performed all painting and restoration as well.

Gas System Cross-Over and Valve Replacement: (Pipe size 24" to 42") The old crossover system was hydro excavated (spoils were managed and dried on-site) and removed in sections. Sheet piling, massive whalers and hydraulic super spreader allowed for an opening large enough to lower in the entire fabricated assembly (90,000lbs+) in one crane pick. The assembly fit perfectly and required the bare minimum number of tie-in welds.