West Union, West Virginia

Sherwood VIII Inlet Pipe Rack Project

Client / Owner

MarkWest / Antero Midstream Partners LP

Architect / Engineer

Exterran Partners LP


Oil, Gas & Chemicals


Graycor Industrial

Project Scope

Graycor Industrial completed an inlet pipe rack project at MarkWest Energy Partners’ Sherwood Processing Facility. The pipe rack was built at the site of Sherwood VIII, a 200-MMscf/d cryogenic gas processing plant simultaneously constructed by Graycor.

Scope of work: Graycor’s team supplied and installed an interconnecting pipe rack and associated piping, tying together MarkWest’s pipeline and existing cryogenic units at the site.

Self-performed work included foundations, structural steel and pipe erection, welding and scaffolding.
Subcontracted work included electrical, insulation, painting and NDE.


  • Pipe: 15,465 LF
  • Field Welds: 320
  • Structural Steel: 1,310 tons

Sherwood VIII Cryogenic Plant

West Union, West Virginia

Sherwood VII Cryogenic Plant

West Union, West Virginia

Majorsville VI Cryogenic Facility

Dallas, West Virginia