Multiphase Wellhead System (MWS)


  • Boost production from declining wells to buck pressure in the gathering system.
  • Assist existing artificial lift systems by lowering bottom hole pressure and raising the liquid level in the well.

The Leistritz Multiphase Wellhead System (MWS) is a proven and economical method to assist artificial lift systems to accelerate production by lowering wellhead pressure and bottom-hole pressure to allow ESPs and plungers to operate above the bubble point for uninterrupted plateau production. MWSs handle total flow rates up to 100,000 bpde and differential pressures up to 500 psi. These fully automated systems have a small footprint and together with multiphase well testing will significantly reduce flaring, local separation facilities and stock tanks to allow operators to take advantage of more cost-effective centralized process facilities.

Scope of Supply

  • Leistritz Multiphase Pump
  • Seal oil system, API plan 53B (2 per pump)
  • Inverter duty electric motor (1800 rpm)
  • Spacer coupling and guard
  • Structural steel skid with raised rim and common drain (foundation mount)
  • Suction piping with strainer and manual isolation valve
  • Discharge piping with liquid knock-out boot,check valve, manual isolation valve and full flow relief valve (piped to suction)
  • Bypass piping with check valve
  • Instrumentation (reference applicable P&ID) and on skid wiring to junction box
  • VFD and PLC (shipped loose for mounting and wiring in climate controlled enclosure by others)

Required Utilities

  • Initial liquid fill of liquid knock-out boot
  • Electricity – motor, seal and lube oil systems and instruments
  • Initial oil fill of seal and lube oil systems

System and Area Classification

  • MGS Low Pressure – 300 lb. system
  • MGS High Pressure – 600 lb. system
  • Class I, Division II

Optional Items

  • 3600 rpm Driver
  • Up to 2000 psi inlet pressure
  • Natural gas engine or diesel engine driver
  • Single mechanical seal or single mechanical seal with throttle bushing
  • API baseplate
  • Actuated valves
  • Cooler
  • Offshore classifications
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