Crude oil gathering pipeline heating
Supports stable transfer from well pads, gathering stations and field manifolds.
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Explosion-Proof Crude Oil Circulation Heater
Crude oil flow assurance
The Explosion-Proof Crude Oil Circulation Heater is an industrial electric circulation heater engineered for continuous-flow crude oil heating in recirculation loops, gathering pipelines, transfer lines, unloading loops and oilfield process systems. It raises crude oil temperature in a controlled heating chamber to support viscosity reduction, anti-wax flow assurance and more stable downstream transportation.
For hazardous oilfield areas, XGTHERMAL can configure the heater body, electric heating elements, insulation, instruments and control cabinet around the site's process pressure, crude properties, temperature target and local automation interface.
Continuous-Flow Oil Heating
For crude gathering lines, transfer lines, loading loops and circulation skids
Low Surface Heat Load
Configured to reduce local overheating, coking and wax-deposit risk
Skid-Ready Integration
Heater body, valves, instruments, insulation and control system can be packaged together
Typical applications
Built for oilfield circulation and transfer lines.
This product is used where crude oil must keep moving through pipelines, manifolds or circulation loops under changing temperature, viscosity and wax-content conditions.
Transfer-line viscosity reduction
Raises oil temperature to reduce pumping resistance in heavy or waxy crude service.
Anti-wax flow assurance
Helps keep the medium above critical wax-deposition conditions during transportation.
Cold-region oilfield start-up
Provides controlled heat input for exposed pipelines and station loops in winter operation.
Oilfield station retrofit heating
Can be supplied as a heater body or a skid-mounted package for brownfield process upgrades.
Heating challenges
Why crude oil circulation heating matters.
In field transportation, crude oil heating is rarely only about reaching a number on the outlet thermometer. The heating path must handle viscosity, wax behavior, surface temperature and hazardous-area safety at the same time.
Cold crude increases pressure drop, pump load and unstable transfer in gathering pipelines.
Heating duty, surface heat load and residence time are configured around the crude property and flow condition.
Maintaining a suitable temperature window helps reduce wax build-up and unexpected line restriction.
- Localized overheating and coking risk are considered during heater sizing and surface heat-load selection.
- Explosion-proof station requirements can be matched through hazardous-area electrical design and suitable field instruments.
- Single-body, double-body, multi-body or skid-mounted configurations can be selected according to heating duty and installation layout.
Engineering design
Configured as a heater body or a packaged circulation skid.
The heater can be designed for once-through pipeline heating or recirculation loops. XGTHERMAL can integrate process nozzles, flanges, insulation, temperature and pressure instruments, flow protection and local control cabinets according to project requirements.
- Crude-oil wetted parts and connection sizes selected by medium property and pressure rating
- Low surface heat load options for waxy or coking-sensitive crude service
- Skid-mounted piping, valves, drain/vent interfaces and insulation available for site-ready delivery
- Local panel, PLC logic, SCR power control and station communication can be configured by project
Control and protection
Stable outlet temperature with layered electrical and process protection.
Crude oil circulation heaters should not rely on simple on/off heating alone. A project-specific control system can regulate heating output and protect the heater when flow, pressure, leakage or temperature moves outside the permitted operating range.
PLC temperature control
Outlet-temperature feedback can be used for automatic heating adjustment and operator visibility.
SCR stepless power regulation
Power output can be adjusted smoothly to reduce thermal shock and unnecessary cycling.
Flow / no-flow interlock
Low-flow protection helps prevent dry heating and abnormal surface temperature rise.
Over-temperature and over-pressure protection
Independent alarm and shutdown logic can be configured for heater body, outlet medium and control cabinet.
Engineering data
Specifications
The following ranges are typical product capabilities. Final power, pressure, material, flange rating and control configuration are selected after reviewing the crude oil property, flow rate and site conditions.
| Specification Parameters | Specification Details |
|---|---|
| Rated Voltage | 380 / 400 / 415 / 480 / 690 V, 50/60 Hz available by project |
| Rated Power | Project-dependent; configurable up to 3000 kW where applicable |
| Inlet/Outlet Specification | Project-specific flange / nozzle sizes; ANSI / ASME flange rating options available |
| Control Mode | PLC, single-chip microcomputer or digital display meter options |
| Alarm Mode | Over-temperature, over-pressure, low flow, low liquid level and electrical fault alarm options |
| Design Pressure | Project-dependent; configurable up to 45 MPa subject to engineering review |
| Control Cabinet | Explosion-proof / non-explosion-proof, selected by area classification |
| Protection Class | IP65 |
| Explosion-Proof Grade | Exdb IIB T1~T6Gb Exdb IIC T1~T6Gb |
| Standards and Certification Area | Reference / Route | How XGTHERMAL Supports It |
|---|---|---|
| Explosion-proof design basis | IEC 60079 / GB/T 3836 | Design reference for explosion-proof heater body, terminal box and hazardous-area electrical details. |
| EU / international Ex certification | ATEX / IECEx | Project-specific certification route can be supported when required by the destination market and final hazardous-area classification. |
| Eurasian market access | EAC / TR CU 012/2011 | Certification and technical documentation support can be coordinated for Russia, Kazakhstan and other EAEU destinations. |
| Oil & gas procurement documents | IOGP JIP33 S-723 Electrical Process Heaters | JIP33-aligned data sheets, inspection and test plans, vendor document register and technical query response can be prepared for EPC review. |
| Pressure boundary | ASME BPVC Section VIII / PED 2014/68/EU | Pressure design, material traceability, welding records and third-party review can be supported when the heater body is within project pressure-equipment scope. |
| Electrical cabinet and machine safety | IEC 61439 / IEC 60204-1 | Control cabinet layout, component selection, wiring practice and electrical protection can be configured around project requirements. |
| Functional safety | IEC 61511 / SIL | SIL-rated safety loop design can be coordinated when independent shutdown or safety instrumented functions are specified. |
| Sour service materials | ISO 15156 / NACE MR0175 | Material selection can be reviewed for H2S or sour crude service when required by the process medium. |
| Inspection and handover package | EN 10204 3.1, NDT reports and FAT records | Material certificates, pressure test records, non-destructive testing reports, electrical test records and factory acceptance test files can be supplied. |
| Ingress protection | IEC 60529 | IP65 / IP66 enclosure protection can be selected for outdoor oilfield stations and harsh operating environments. |
Certification availability depends on final equipment configuration, destination market requirements, hazardous-area classification and third-party conformity assessment. Standards listed here describe available engineering and documentation support, not a blanket certificate for every configuration.
| Name | Origin/Brand | Remarks |
|---|---|---|
| Heater Body | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Pressure boundary and process connection customized by project |
| Heating Element | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Surface heat load selected by crude oil property and duty |
| Control Cabinet | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Explosion-proof or safe-area cabinet available |
| Electrical Components | Delixi, Chint or project-approved equivalents | PLC, circuit breaker, contactor, thyristor, relay and isolating barrier options |
| Instruments | Chuanyi, Anhui Tiankang, Beijing Tiantai or project-approved equivalents | Temperature, pressure, flow and level instruments configured by process design |
Operator references
One of China’s Top-Tier Electric Heating Suppliers for Oil & Gas Projects
XGTHERMAL has supplied electric heating systems for projects connected with CNPC / PetroChina, PipeChina and Sinopec. In China’s petroleum and petrochemical sectors, qualified heater suppliers must pass technical review, explosion-proof compliance checks, safety documentation review and field performance verification.
This project record places XGTHERMAL among the specialist electric heating manufacturers trusted for demanding oil and gas applications. Redacted cooperation records, contract references or project supporting materials can be provided for qualified procurement discussions.
Custom engineering
Custom engineering around your operating conditions.
Share the process medium, duty range, installation limits and control requirements. XGTHERMAL can configure the heater body or skid package around your project rather than forcing a catalogue model.
- Process medium Crude oil, produced fluid, oil-water mixture and fouling tendency.
- Mechanical interface Pressure rating, flange standard, skid envelope, insulation and maintenance access.
- Site safety Hazardous-area classification, IP protection, grounding and interlock requirements.
- Controls PLC/SCR control, Modbus RTU, SCADA/DCS signals and local HMI needs.
Field application
See a related oilfield heater skid project.
The Niger GOLOLO-1 Oilfield case is included as evidence of relevant oilfield electric-heating and skid-engineering capability, without implying the same heater configuration. It shows how packaged electric heating equipment can be prepared for field control, installation and overseas oilfield operation.
