Accumulator / Closing Unit & Accessories

Accumulator / Closing Unit & Accessories

Patterson offers a large inventory of Accumulator / BOP Closing Units in our fleet. It includes 3, 4, 5, 6 and 7 Station Units. These units are available in gasoline, diesel and electric motors. All units are maintained, function tested, chart recorded and repaired as needed per our ISO 9001 quality management system. We own trailer and skid mounted units for all land and offshore operations. All our trailer mounted accumulator units are high in demand in land operations and require minimum handling for mobilizing and rigging up on wellsite. These units can save customer transportation, loading and offloading cost. All units are designed and built per API 16D guidelines.

BOP Accumulators / Closing Units:

  • 3, 4, 5, 6 & 7 Stage Units                                             
  • 40 – 176 Gallon Accumulators / Closing Units
  • 100 – 210 Gallon Tanks
  • Diesel, Gasoline, Dual Diesel & Electric,
  • Skid Mounted & Trailer Mounted
    • Trailer Mounted allows shipping of BOP all in one.
  • Self-Contained
(Note: Most per API 16D)


  • Remote Control Panels (6 Station)
  • Single & Dual Surge Bottle Assemblies ( 3 – 20 Gallon)
  • BOP Hoses
* Above list does not include all tools, please contact Patterson for items currently not listed.