Downhole Motor

The downhole motor is a type of volumetric power drilling tool used in oil and gas well operations. It is driven by the flow of drilling fluid, which converts hydraulic pressure into mechanical energy. As the drilling fluid passes through the bypass valve from the mud pump, it enters the motor. The motor's inlet and outlet channels cause the rotor to rotate around the stator's axis, transferring rotational speed and torque through the cardan shaft and drive shaft to the drill bit, enabling efficient downhole drilling. Product Details
Our downhole motors are available in a wide range of sizes and configurations to meet various operational needs. Based on customer specifications such as torque, displacement, and well temperature, we design customized solutions tailored for different market requirements. • **Uniform Thickness Design**: By optimizing the shape of the stator housing, the elastomer layer maintains a consistent thickness, resulting in a compact, high-power motor with a low speed, high pressure drop, and excellent cooling performance. This design ensures uniform thermal expansion, making it suitable for a broader range of applications. The motor’s lightweight and optimized structure enhance efficiency, particularly in challenging environments like ultra-deep wells, directional wells, and high-temperature wells, extending service life and improving drilling performance. • **High-Temperature Resistant Oil-Based Mud**: This motor is specifically designed for use in high-temperature and oil-based mud systems. The specially formulated stator elastomer retains its mechanical properties, including tensile and tear strength, even under temperatures below 180°C and high-oil conditions. The oil-resistant elastomer with optimal interference offers superior performance in high-temperature and oil-rich environments. • **Corrosion Resistance**: The rotor is coated with an anti-corrosive layer that provides enhanced resistance to corrosion, erosion, and wear. This makes the motor ideal for long-term operation in corrosive fluids, ensuring reliable performance in harsh conditions. • **Air Drilling Compatibility**: Air drilling is an effective method for protecting reservoirs, increasing drilling speed, and reducing the drilling cycle. It also helps prevent mud loss and wellbore collapse. Air drilling motors are powered by compressible fluids such as gas or foam, driving the drill bit through rock formations. These motors require advanced design and precise assembly, with strict standards for the stator’s structure, linear design, and operating parameters. **Specifications** We offer a wide variety of downhole motors suitable for bore diameters ranging from 1 7/8” to 26”. Popular sizes include 1 11/16", 2 1/8", 2 3/8", 2 7/8", 3 1/8", 3 1/2", 3 3/4", 4", 4 3/4", 5", 5 5/16", 5 7/8", 6 1/4", 6 1/2", 6 3/4", 7", 7 1/4", 7 3/4", 8", 8 1/2", 9", 9 5/8", and 11 1/4". We provide vertical, single-curved, double-curved, and adjustable models. The motors are available in different heat-resistant temperature ranges (≤120°C, 120–150°C, 150–180°C) and can withstand oil-based and saturated brine mud systems. All models feature a uniform thickness design for improved durability and performance.

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