National Oilwell Varco Top Drive

National Oilwell Varco has always been committed to ensuring that customers receive high quality oilfield products and services. With more than 700 manufacturing, sales and service centers around the world, National Oilwell Varco is customer focused, providing the best solutions to meet the quality, productivity and environmental requirements of the energy industry. National Oilwell Varco is a manufacturer of drilling equipment including large mechanical components for onshore and offshore drilling rigs, complete onshore and workover rigs, tubular inspection and pipe coating, drill string equipment, a variety of hoisting equipment and a variety of downhole motors, Drills and tools. National Oilwell Varco also provides supply chain services through a network of distribution service centers located in major oil and gas producing regions.

Varco, a subsidiary of NOV National Oil Wells in the United States, is a top-drive company that has developed more than 10 specifications of top-drive. In the past two years, the company has summarized the original products and new research results into 7 series of specifications, that is, increased The newly developed TDS-8SA and TDS-11SA AC variable frequency electric drive top drives cancel the original TDS-3, TDS-3S, TDS-5, TDS-7S top drives and retain the IDS-1 type. , TDS-4H or TDS-4S, TDS-6S and TDS-9S top drives. The new series of top drives API lifting load is 2500 ~ 7500kN, continuous working torque is 10.21 ~ 86.94kN.m, intermittent working torque is 18.47～129.72kN.m, full power high speed is 120～500r/min, top drive system height is 4.7～7.9m. All products adopt electric drive type, among which TDS-8SA type, TDS-9SA type, TDS-10SA type Type and TDS-11SA top drives use AC variable frequency electric drives and AC motors; while IDS-1, TDS-4H or TDS-4S and TDS-6S top drives use AC-SCR-DC electric drives. Drive type, DC motor; TDS-9SA and TDS-11SA top drives use two AC motors, while the other five models use one motor.

Top drive drilling rigs consist of the following main components and accessories:

l. Faucet-drilling motor assembly (one of the key components);

2. Motor bracket/guide pulley assembly (one of the key components);

3. Drill pipe make-up and breakout device assembly (one of the key components, it is the equipment that embodies the advantages of the top drive drilling device);

4. Balance system;

5. Cooling system;

6. Top drive drilling device control system;

7. Optional accessory equipment. The faucet-drilling motor assembly includes the following main components:

8. Drilling motor and brake (air brake)

9. Gearbox (gearbox);

10. Overall faucet;

11. Balancer;