Drilling Tools

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  • Downhole Drilling MotorAs a kind of downhole tools, our downhole drilling motor is powered by mud. It consists of power section, transmission assembly, dump valve and bearing assembly. The mud from mud pump flows through the dump valves into power section. Then a certain differential pressure comes into being, pushing the motor rotor in motion and transmitting rotary torque...
  • Power SectionThe rotor is an alloy steel bar coming with a helical or multi-lobed pattern. It may offer an axial bore and a nozzle to allow some of the drilling fluid to bypass the nozzle and the power section and increase the flow-rate to the bit. This rotor is chrome plated to reduce friction, wear and corrosion. As the other main part of the power section, the stator is a length of tubular steel lined...
  • Dump ValveDuring drilling or tripping operations, dump valve moves up under the influence of spring and bypass hole will stay open. At that time, the flow of drilling fluids will pass through the hole or enter into drill string or drill pipe in order to balance the pressure difference between internal and external. While pumping, the drilling fluids will give rise to resistance due to the fact...
  • Coupling AssemblyOur coupling assembly is attached to the lower end of the rotor. It is designed to transmit motor rotational torque and speed to drive shaft and bit. Namely, this product is able to convert the eccentric motion of the rotor into the concentric motion of the drive shaft. In addition, it allows for placement of a bend point in its external housing for steerable motors...
  • Bearing AssemblyBearing Assembly is designed to transmit the rotary torque to broach and support the radial load and axial load generated by pressure. And its design integrates the combined radial and axial bearings and radial sliding bearing...
  • Tungsten Carbide Bearing Tungsten carbide bearing is coated with tungsten carbide or solder materials by metal sintering. It is characterized by large load capability and long life span. Apart from these features, it offers a high resistance against corrosion and impact...
  • Drill CollarDrill collar is obtained from rolled or forged AISI4145H chromium- molybdenum alloy steel. As a main component of a drilling motor, it is mounted at the bottom of drill string or drill pipe. It comes with the main features of up to 38~ 53mm in outside diameter or wall thickness, equivalently 4 ~ 6 times of drill string in wall thickness...
  • Heavy Weight Drill Pipe This heavy weight drill pipe is equipped with lengthened connectors. It is characterized by wear resistant belt in the middle. The wear resistant belt acts as a stabilizer which is able to improve the rigidity of drill pipe and prevent well from slanting...

Generally speaking, drilling tools include the whole drilling pipe and its joints or connectors. Our company supplies many drilling products such as downhole drilling motor, tungsten carbide bearing, drill collar and heavy weight drill pipe. Our downhole drilling motor is composed of power section, dump valve, transmission assembly and bearing assembly. Customers can also purchase these components from us. These tools are mainly designed for transmitting pressure and rotary torque to broach and transporting drilling fluids to downhole. Compared with common drill, our drilling motor plays an important role in directional drilling thanks to high durability and high speed. And tungsten carbide bearing offers high intensity and a long life span. Additionally, our heavy weight drill pipe is equipped with wear resistant belt which can act as a stabilizator.

DONGCHEN is a professional drilling tools manufacturer and supplier in China. Our company provides a wide variety of products, including continuous casting exchange segment, water cooled cover, power section and much more.

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