Apex

Vertical Separator

Apex , Well Testing has developed its own set of fabrication specifications to ensure that equipment used by Apex Petroleum Services, Well Testing meets or exceeds all local requirements. Apex Petroleum Services, Well Testing specifications are primarily based on the following worldwide recognised specifications:

Equipment Design and Fabrication Specifications

  • API Spec 6A – Specification for Valves and Wellhead Equipment
  • ASME VIII For construction of pressure vessels , Div 1&2
  • API RP 14C – Recommended Practice for Analysis, Design, Installation, and Testing of Basic Surface Safety Systems on Offshore Production Platforms
  • NACE MR-01-75
  • Product Specification Level (PSL) 3
  • Material Class DD
  • Temperature Class P&X (-20° F to +350° F)

Vertical Separator

The Apex Vertical Separator is engineered for high-performance separation of liquids from produced gas, particularly suited for wells with low to moderate liquid content. Its compact and lightweight design makes it ideal for operations where space, mobility, and efficiency are key. Capable of handling gas flow rates up to 125 MMSCFD, the unit delivers exceptional performance through a precision-engineered tangential inlet nozzle, generating centrifugal force that separates heavier liquid particles from the gas stream. Liquids are efficiently directed to a stilled chamber at the base of the vessel, ensuring up to 99% removal of droplets larger than 10 microns.

Designed as a fully modular, self-contained unit, the Apex Vertical Separator comes equipped with:

  • Pneumatic controllers and valves for pressure and fluid level regulation
  • Safety relief valves to prevent overpressure
  • High-level alarms and automatic shutdown systems to protect downstream equipment
  • Integrated Data Acquisition (DAQ) connectivity for real-time monitoring and recording

This system not only enhances separation efficiency but also reduces the risk of liquid carryover to the gas flare and blow-by to surge tanks—supporting safer, cleaner, and more reliable well testing operations.

Applications:

  • High rate gas testing
  • Gas well testing
  • Production optimization and verification

Key Features Include:

  • Compact Footprint
  • High Separation Efficiency
  • Enhanced Liquid Removal
  • Foam-Free Operation
  • Improved Process Control
  • Modular & Mobile Design
Service & Working Pressure Temp RatingCapacity Liquid & GasMeteringGas, Oil, WaterSafety Devices ConnectionsDimensions (h x l x w)& Weight Design Code
Psi°F      
(bar)(°C)BPD &MMscfdFt &Ibs
   (kg)
 30” O.D. x164” Tan/Tan       
   Gas:         20.83 x 9.0 x8.0  Weight: 22,275 (10,102) 
   2 x Daniel senior   
   orifice,   
   line bore 7.625”   
   & 2.9” Inlet: 
   3-pen recorder 6” 206 H.U. 
   0-1,500psig, 0- (F) 
   200”2, 4” x 6” PSVGas Outlet:ASME VIII
Sour,-20 to 100 WG &set @6” 206 H.U.Div. 1,
1,440 (99) (-29 to 38)4,000 &2330-400” WG, 0-200°FOil: 2” Nuflometer, 2”bypass. Water:2” Nuflo1,440psig 1, 3” rupture disc set @ 1,584psig(M)Oil Outlet: 2” 602 H.U. (M)Water Outlet:ANSI B31.3, NACE MR- 01-75
   meter 2” 602 H.U. 
     (M) 
 18” O.D. x100” Tan/Tan       
   Gas: Inlet:   13.67 x 7.92 x7.0  Weight: 20,000 (9,072) 
   Daniel senior 3” 602 H.U. 
   orifice, (F) 
   line bore 5.761” Gas Outlet: 
   3-pen recorder1, 3” x 4” PSV3” 602 H.U. 
Sour,-20 to 1002,000 & 800-1,500psig,set @(M)ASME VIII
1,440  0-200”, 0-400”1,440psigOil Outlet:Div. 1,
 (-29 to 38)(318 &WG, 0-2” rupture2” 602 H.U.ANSI B31.3,
(99) 2.27)200°F.Oil:discset @(M)Water Outlet:NACE MR-
   2” Nuflo meter,2” by-pass.Water: 2” Nuflo meter. 1,584psig 2” 602 H.U.(M)01-75
Service & Working Pressure Temp RatingCapacity Liquid & GasMeteringGas, Oil, WaterSafety Devices ConnectionsDimensions (h x l x w)& Weight Design Code
Psi (bar)°F (°C)BPD &MMscfd   Ft &Ibs (kg) 
24 O.D. x 120       
   2 x Daniel senior Inlet:  
   orifice, 6” 206 H.U.  
   line bore 7.625” (F)  
   & 2.9” Gas Outlet:  
   3-pen recorder 6” 206 H.U.  
Sour, 2000 (138)-20 to 200(-29 to 93)4000 & 1100-1,500psig, 0-200”WG &2, 4” x 6” PSVset @ 1,440psig(M)Oil Outlet:2” 602 H.U.20.83 x 9.0 x8.0ASME VIIIDiv. 1, ANSI B31.3,
   0-400” WG, 0-200°F1, 3” rupturedisc set @(M)Water Outlet:(16500)NACE MR-01-75
   Oil: 2” Nuflo1,584psig2” 602 H.U.  
   meter, 2” (M)  
   bypass.    
   Water: 2” Nuflo    
   meter    

Note:
Equipment is designed/certified to ASME VIII Div-1 (U Stamp), NACE MR-01-75, DNV 2.7-1/2.7-3, CE / PED, NORSOK standards as applicable based on the region (local) requirements.
Other sizes and configurations are available to meet most applications. For more information, contact your local Apex Petroleum Services representative.