Description

Send Inquiry

Low-Maintenance Variable-Speed Permanent Magnet Motor for Oilfield Applications

Core Advantages

Low-Maintenance Design

The brushless design eliminates traditional belt transmissions and motor bearings, eliminating mechanical wear points and achieving maintenance-free operation throughout its lifecycle.

Without an excitation winding, the simplified structure minimizes failure rates, requiring virtually no maintenance for three to five years.

High Efficiency and Energy Saving

Overall energy savings exceed 15%, with a power factor exceeding 95% and efficiency remaining around 90% even at low speeds.

Direct excitation of permanent magnets eliminates excitation losses (reducing energy consumption by 20%-30% compared to asynchronous motors).

Strong Environmental Adaptability

High-temperature-resistant magnetic steel (<3% magnetic loss at 150°C) ensures stable operation in high-temperature environments, such as oilfield water injection pumps and submersible electric pumps.

Explosion-proof and corrosion-resistant design meets the high-temperature, high-pressure, and highly corrosive operating conditions of oilfield applications.

Key Technical Features

Variable Speed Capability and High Low-Speed Torque

The wide speed range adapts to complex oilfield loads. The permanent magnet brushless DC motor increases low-speed torque by 40%, enabling precise flow control of water injection pumps.

The direct-drive design eliminates the need for a reducer, achieving a starting torque 15 times that of traditional motors, making it suitable for equipment with high starting torque, such as pumping units.

Intelligent Control and Reliability

The inverter dynamically adjusts the load, achieving a speed accuracy of ±0.1%, enhancing equipment stability.

The overload protection system monitors current and temperature in real time, automatically shutting off power when exceeding limits to prevent magnet demagnetization.

Typical Application Scenarios

Submersible Electric Pump Drive

Transverse Flux Permanent Magnet Linear Motors solve the problem of eccentric wear on pipes and rods, improving production efficiency in low-permeability oilfields.

Pumping Unit Upgrade

Magnetically levitated semi-direct-drive permanent magnet motors (as used in the Shengli Oilfield application) reduce noise to 50 decibels and size by 30%.

Water Injection System

Permanent magnet brushless DC motors precisely control water injection pumps, reducing specific energy consumption by 25%.

Maintenance Key Points

● Daily Management: Regularly clean surface dirt and check for loose terminals; clean bearings and relubricate every six months.

● Environmental Control: Ensure ventilation and moisture control to prevent high temperatures from causing magnet demagnetization.

Oilfield permanent magnet motors, through material innovation (such as neodymium iron boron magnets) and structural optimization, have reduced maintenance costs while achieving significant improvements in energy efficiency. They have become core equipment for the intelligent and green transformation of oilfields.

Honor And Qualification

The company holds over 80 patents and 18 provincial-level industrial new products. It is certified to ISO9001 for quality, ISO14001:2015 for environmental, and ISO45001 for occupational health. Its products are certified to China 3C, US UL, Canadian CUL, Australian SAA, and EU CE and ROHS.

Application Areas

Textile Industry

① Motors for circulation fans in textile printing and dyeing machines.

② Motors for textile texturing machines.

Industry and Energy

① Mining/Steel Mill Equipment: Single units with power up to 260kW, cascading to MW-class, suitable for direct-drive systems.

② Breeze Power Generation: Low wind speed start-up (force 3) with a wide high-efficiency range, suitable for small and medium-sized wind turbines.

High-End Equipment

① Robotic Joints: High torque density and precise control, supporting integrated harmonic reduction design.

② Aerospace: Lightweight and high power density meet the requirements of drones and electric aircraft.

Case

Case 1

Location: Daqing Oilfield
Motor Model: JNPM520-30-255
Key Parameters:
Power: 30 kW
Torque: 1,123 N·m
Speed: 255 RPM

Case 2

Location: Daqing Oilfield
Motor Model: JNPM290-30
Power: 30kW
Torque: 286N ·m
Speed: 1000 RPM

Case 3

Location: Production equipment for textile printing and dyeing factories
Motor Model: JNPM173-7.5
Key Parameters:
Power: 7.5kW
Torque: 49 N·m
Speed: 1450 RPM

Company Advantages

The company is committed to building its brand. Through years of hard work, its "Weidi" trademark has been recognized as a "Famous Trademark of Zhejiang Province" and its "Weidi" brand motors have been designated as "Famous Brand Products of Hangzhou." The company has also been recognized as a "Science and Technology Enterprise of Zhejiang Province," a "Patent Demonstration Enterprise of Zhejiang Province," a "Made-in-Zhejiang Product," a "Specialized, Specialized, and Innovative Enterprise of Zhejiang Province," a "National High-Tech Enterprise," and a "National Intellectual Property Advantage Enterprise." It also has established a provincial-level enterprise research institute.

The company actively leverages customer support and its own efforts to continuously improve product quality, enhance product visibility and reputation, and further develop its expertise, strength, and scale in the high-end equipment and smart home motor industries.