High-efficiency engineered solutions for liquid-liquid, liquid-solid, and multiphase separation skids.
Setting the benchmark in industrial oil-water separation, crude oil dewatering, and field process enhancement.
In modern energy extraction, refining, and industrial fluid processing, obtaining high-purity clean oil while guaranteeing stringent environmental compliance for produced water discharge is a critical operational parameter. As an industry-leading clean oil supplier, equipment designer, and separation systems provider, Shanghai Shangjiang Petroleum Engineering Equipment Co., Ltd. (SJPEE) engineers turnkey multiphase separation technologies that redefine dynamic fluid purification.
Whether operating on high-vibration offshore topsides, remote unconventional shale fields, or high-throughput oil refineries, crude oil stream contamination—comprising emulsified water, fine silica sand, micro-particulates, and residual gas—presents major risks to downstream compressors, heat exchangers, and catalytic hydrocrackers. Our specialized clean oil systems employ advanced hydrocyclonic acceleration principles, achieving centrifugal gravitational force up to 2,000G to rapidly resolve oil-in-water (OiW) and water-in-oil (WiO) emulsions, ensuring optimal oil purity (BS&W < 0.5%) and reduced total operational expenditures (OPEX).
Integrating global engineering practices with state-of-the-art manufacturing infrastructure.
Shanghai Shangjiang Petroleum Engineering Equipment Co., Ltd. (SJPEE.CO., LTD.) was established in Shanghai in 2008. The factory covers an area of 4,820 m² and the factory building area is 5,700 m². It is located at the mouth of the Yangtze River and enjoys convenient water transportation.
The company has always been committed to developing various separation equipment, filtration equipment, etc., required in the oil and gas industry. Technically, we continuously develop and improve cyclone separation products and technologies, taking "strict management, quality first, quality service, and customer satisfaction" as the company's operating principles. We wholeheartedly provide customers with various low-cost, high-efficiency separation equipment and finished skids, equipment retrofits, third-party equipment modification, and comprehensive after-sales service.
The company implements total quality management in accordance with ISO-9001 requirements, maintains a complete service system, and provides users from all walks of life with high-quality pre-sales, sales, and after-sales services.
Our products are exported to Singapore, Thailand, Malaysia, Indonesia, Russia, and many other energy-producing regions, earning widespread praise from domestic and international oilfield operators, engineering procurement contractors (EPCs), and facility superintendents.
SJPEE's dedicated design engineers utilize advanced Computational Fluid Dynamics (CFD) modeling to analyze dynamic velocity profiles, droplet breakdown dynamics, and inlet shear stresses, guaranteeing optimal internal geometric dimensions for every hydrocyclone module produced.
Understanding the fluid dynamics behind ultra-pure clean oil generation and water polishing.
Clean oil separation relies on amplifying density differentials between continuous and dispersed fluid phases. In traditional gravity settling tanks, phase separation speed is severely restricted by terminal settling velocity as defined by Stokes' Law:
Vt = [ d2 × (ρp - ρf) × a_c ] / (18 × μ)
Where Vt represents droplet terminal velocity, d is droplet diameter, ρp - ρf is phase differential density, μ is continuous phase dynamic viscosity, and a_c represents centrifugal acceleration ($a_c = v_\theta^2 / r$).
By replacing gravitational acceleration ($g$) with powerful centrifugal acceleration ($a_c$), which can reach speeds over 1,000 to 2,000 times that of gravity inside SJPEE hydrocyclones, microscopic water droplets or fine silica sand particles ($d_{50}$ down to 2–5 microns) are driven rapidly toward the outer cyclone perimeter. Simultaneously, lighter hydrocarbon phases collect inward around a low-pressure vortex core, discharging through an axial overflow orifice as high-purity clean oil.
Modern field streams are rarely simple two-phase mixtures. SJPEE’s proprietary four-phase system manages complex mixtures of crude oil, associated hydrocarbon gas, produced water, and abrasive solids simultaneously:
High-shear desanding hydrocyclones strip out formation sand, proppants, and scale before fluid touches downstream control valves or headers, eliminating pipe erosion and vessel sand accumulation.
Integrated gas boot geometry allows rapid flash-gas liberation, preventing vortex core cavitation and stabilizing hydraulic residence times within liquid hydrocyclone liners.
Specialized dewatering hydrocyclone configurations coalesce emulsified water droplets, dropping water concentration in clean crude down to minimal fraction specifications.
Polishing stream hydrocyclones harvest residual oil droplets from water streams down to <15 ppm, making water compliant for offshore overboard discharge or reservoir re-injection.
Innovating next-generation hydrocyclones to support global decarbonization, subsea processing, and automated smart fields.
Integrating real-time oil-in-water sensors with high-speed automated control valves. Microprocessors adjust differential pressure ratios (DPR) dynamically in response to slug flows or rapid water-cut spikes, keeping clean crude output consistent without human intervention.
To resist extreme sand erosion in ultra-deep wells, SJPEE is deploying reaction-bonded Silicon Carbide and high-purity alumina ceramics for cyclone liners, expanding operational service life up to 5x over duplex stainless steels in high-velocity erosive conditions.
Moving separation infrastructure from topside platforms directly to the seabed floor. Subsea hydrocyclone separation reduces fluid hydrostatic head pressure, revives declining fields, and saves billions in offshore topside topside platform CAPEX.
Compact cyclonic equipment eliminates massive heating fuel demands needed to lower crude viscosity in large traditional wash tanks, directly shrinking field fuel burn, CO2 footprint, and operational energy requirements.
Tailored engineering deployments solving distinct operational challenges in offshore, onshore, and refining sectors.
On offshore platforms and FPSO vessels, deck footprint and weight carry immense monetary value. SJPEE compact cyclonic dewatering units deliver up to 60% footprint reduction and 50% dry/operating weight savings compared to conventional gravity separators, maintaining operational performance despite vessel motion and pitch.
Unconventional wells experience extreme flow fluctuations, sand surges, and rapid decline curves. Our mobile, modular leasing and purchase skids (such as the PR-10 Fine Particle Cyclonic Remover) provide flexible deployment, protecting expensive downstream gathering lines from sand packing and aggressive emulsion blockages.
Downstream petroleum refineries generate complex slop oil streams mixed with chemical additives, fine catalysts, and water. Our specialized high-temperature desanding and deoiling hydrocyclones recover high-value clean hydrocarbons from refinery waste streams, turning environmental disposal liabilities into profitable feedstock.
Combining world-class Shanghai maritime export infrastructure with precision smart manufacturing.
Operating from our primary manufacturing hub located directly at the mouth of the Yangtze River in Shanghai, SJPEE leverages unique geographic and industrial cluster advantages. Shanghai’s world-class maritime logistics network allows direct ocean freight loading of heavy skid assemblies, drastically cutting transit schedules, inland transport risks, and export shipping costs for global clients.
Our 5,700 m² facility features advanced multi-axis CNC machining centers, automated orbital welding systems, and digital non-destructive testing (NDT). Every hydrocyclone liner, manifold, and pressure vessel undergoes rigorous digital dimensional verification and full material heat-number traceability.
By integrating localized high-grade steel sourcing (Duplex 2205, Super Duplex 2507, 316L) with streamlined digital skid fabrication processes, SJPEE delivers separation packages that meet or exceed Western OEM quality specifications at a 40% to 60% capital expenditure savings.
China's comprehensive industrial supply chain guarantees uninterrupted raw material availability, zero component lead-time bottlenecks, and rapid emergency spare parts dispatch for global field maintenance requests.
Ensuring full regulatory compliance across international operational jurisdictions.
Global energy projects require strict adherence to stringent engineering standards, environmental regulations, and safety mandates. SJPEE separation systems are custom-engineered to meet international code requirements across Europe, Asia-Pacific, the Middle East, and the Americas:
All pressure vessels and structural skids are designed and fabricated in strict alignment with ASME Section VIII Division 1 & 2 (with U-Stamp capabilities) and European CE Pressure Equipment Directive (PED 2014/68/EU) guidelines.
Internal materials comply with NACE MR0175/ISO 15156 for sour H2S gas environments. Electrical and instrumentation packages carry full ATEX, IECEx, and Class 1 Division 1/2 explosion-proof certifications.
Our dedicated field engineering teams provide on-site technical surveys, installation supervision, pre-commissioning, Factory Acceptance Testing (FAT), Site Acceptance Testing (SAT), and ongoing maintenance training globally.
A streamlined modular approach for smooth EPC project execution, installation, and lifecycle maintenance.
For major international EPC contractors and oilfield operating operators, equipment procurement involves rigorous technical audits, risk mitigation, and seamless project management integration. SJPEE utilizes a standardized 5-Stage Procurement Framework:
Explore our certified separation skids, desanding units, and dewatering packages available for global lease or purchase.
Detailed technical answers for procurement teams, field operators, and process engineers.
A: Hydrocyclones generate artificial centrifugal force up to 2,000G, replacing slow 1G natural gravity settling. This allows liquid separation to occur in seconds rather than hours, reducing processing vessel sizes and operational weight by up to 60% while dramatically improving oil-water discharge purity.
A: Depending on fluid viscosity and temperature, SJPEE dewatering hydrocyclone skids consistently achieve crude oil BS&W levels below 0.5%, meeting pipeline transport standards and refinery crude feed quality specifications.
A: Yes. For heavy solids streams, we place specialized desanding hydrocyclones upstream. Designed with erosion-resistant materials such as Tungsten Carbide, Duplex Stainless Steel, or Ceramic/SiC liners, these units remove solid particles down to 5 microns before liquid-liquid separation occurs.
A: Absolutely. SJPEE maintains a comprehensive inventory of mobile leasing skids—including PR-10 fine particle removers and test desanding hydrocyclones—allowing operators to conduct fast field trials without upfront CAPEX commitments.
A: Every finished skid includes comprehensive technical documentation: ISO-9001 compliance, ASME U-stamp (or design equivalent), CE-PED certification, NACE MR0175 material test reports (MTRs), ATEX/IECEx electrical compliance certificates, and full Factory Acceptance Test (FAT) reports.
A: We conduct detailed on-site technical surveys, analyze existing 3D scans or piping layouts, and engineer customized cyclone internal components or compact drop-in replacement modules that fit directly inside client existing pressure vessel envelopes.
