无锡努瓦石油科技有限公司

Multiphase Surface Progressive Cavity Pump

Multiphase pumping has become a critical component in many production schemes. Far from being a niche technology, it is fast becoming a standard component of the modern oil and gas production system. Multiphase pumps provide cost savings and operation flexibility in applications as diverse as onshore heavy oil and subsea/offshore conventional oil.

WUXI NOVA Multiphase Surface Progressive Cavity Pump – Full skid-mounted system
Complete Multiphase PCP System

A PCP is a positive displacement pump consisting of a single winding rotor with a round cross-section and a stationary stator. We at WUXI NOVA PETROLEUM SERVICES provide a complete solution for the design and supply of all components for Multiphase Applications.

We supply all equipment, including Skid Mounted, Pump (consistent stator, Rotor), Fixed Speed or Variable Speed Drive, Gearbox, Electric Motor, Junction Box, surface electrical, and unique control system. We have established alliances with leading manufacturers to produce PCP at a very robust and very affordable price compared to others.

Application-Specific Equipment & Boosting Solutions

WUXI NOVA PETROLEUM SERVICES offers a full suite of application-specific equipment to meet your Multiphase Surface PCP needs.

Through continuous research and development, we strive to create innovative tools that deliver greater value to oil and gas production companies.

Boosting Wells into High-Pressure Gathering System
Multiphase Surface PCPs have all been used in different countries to boost production from low-pressure wells into higher-pressure gathering systems. As an alternative to installing vessels and conventional gas compression.

Recommended API Standard: API 676 (3rd Edition) — details below.

WUXI NOVA Multiphase PCP boosting low-pressure wells into high-pressure gathering systems
Well Boosting Application

Multiphase Surface PCP Components & Benefits

The WUXI NOVA Multiphase progressing cavity pump technology brings multiple benefits:

  • Up to 90% GVF involving solids, low NPSH, or viscous fluid
  • Max flow rate – up to 75,000 bfpd [2,200 US gpm]
  • Max differential pressure – up to 750 psi, 48 Bar
  • Max motor HP – up to 200 HP (150 kW)
  • Maximum fluid temperature – up to 265°F [130°C]
  • Ability to produce highly viscous fluids (up to 1,000,000 cp)
  • High system energy efficiency (55% to 70%)
  • Lower power consumption
  • System simplicity, with fewer components
  • No valves, no gas lock. NO CHANGES IN FLOW WHEN YOU HAVE BACKPRESSURE
  • Handles fluids with free gas
  • Relatively low capital and operating costs
  • Low maintenance
  • Simple installation and operation. Plug and Play
  • It can be used in remote locations without power
  • Steady energy demand

WUXI NOVA's multiphase booster pump system can provide incremental oil production from naturally flowing or gas-lifted ESP wells, improve efficiency, and reduce operating costs.

WUXI NOVA Multiphase PCP components and booster system in operation
PCP System Components

Additional Protection Strategies & Material Effects

Chemical inhibitors and material science to combat H₂S and CO₂ degradation.

Chemical Inhibitors

  • H₂S Scavengers (e.g., Triazine) to neutralize H₂S
  • CO₂ Corrosion Inhibitors (e.g., amine-based compounds) to reduce acid

Effect of H₂S and CO₂ on PCP Materials

Hydrogen Sulfide (H₂S) Effect
  • Sulfide Stress Cracking (SSC): High-strength steels are susceptible to brittle fracture when exposed to H₂S
  • Hydrogen Embrittlement: H₂S can diffuse into metals, causing loss of ductility and cracking
  • Elastomer Degradation: H₂S can chemically degrade rubber components used in stators
Carbon Dioxide (CO₂) Effects
  • Carbonic Acid Corrosion: CO₂ reacts with water to form H₂CO₃ (Carbonic Acid), which aggressively corrodes metals
  • Localized pitting and crevice corrosion: CO₂ accelerates metal degradation, especially in the presence of chlorides
  • Elastomer Swelling: CO₂ can permeate elastomers, leading to swelling and a loss of mechanical properties
H2S-induced Sulfide Stress Cracking (SSC) in steel
SSC in Steel
CO2-induced elastomer swelling in PCP stator
Elastomer Swelling

Viscosity & Operational Guidelines

Wear is proportional to speed. PCP excels when PSI > GPM.

The more viscous a fluid, the slower the pump must run to allow it to flow into the cavity. At reduced speeds, the pump may not develop 100% volumetric efficiency, and has to be considered for the selection process.

As a rule of thumb, the PC Pump is an efficient choice when the required pressure exceeds the flow rate (PSI > GPM).

It is prudent to address the significant concerns in the selection process: abrasion, temperature, and viscosity.
Wear is proportional to speed, especially in a PC pump.

Below are shown some Viscosity Indications: [Performance curves available on request]

Viscosity impact on PCP cavity fill, efficiency, and run speed
Viscosity Performance Guide

Get Your Custom Multiphase PCP

API 676 | Global delivery | Full after-sales support