Nov Varco Top Drive System Main Shaft for TDS8SA PS2-50A 121131

• Customization: Available
• After-sales Service: 1.5 Year
• Warranty: 1 Year
• Manufacturing Process: Stamping
• Surface Treatment: Galvanized
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Applicable Medium: Mud, Water, Natural Gas, Crude Oil
• Speed: 200-1500 Rpm
• Documents: Full Test Report
• Name Plate: Customized
• Working Pressure: 2000-10000 Psi
• Transport Package: Wooden Case
• Specification: 60 Kg
• Trademark: VSP
• Origin: Vsp
• HS Code: 8431431000
• Production Capacity: 2000pieces / Year
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 15.000kg

Product Description

Specification

Detail Function: 1.Power transmission and rotational drive; The Main shaft is directly connected to the faucet and drilling motor, transmitting power to the drill string, driving the drilling tool to rotate and complete the drilling operation. Compared to traditional rotary drive methods, the Main shaft can achieve continuous rotation and casing operation, improving drilling efficiency.				2.Drill string connection and load support; The main shaft is connected to the integral faucet through a gearbox housing and cooperates with components such as lifting rings and elevators to bear the entire weight of the drill string and dynamic loads during operation. When connecting the column or flipping the eye, the Main shaft ensures the stability and precise alignment of the drill string.

Packing & Delivery

1, Material requirements
Hydrogen sulfide resistant alloy steel
The Main shaft needs to be made of special alloy steel that is resistant to hydrogen sulfide (H2S) corrosion to ensure durability in sulfur-containing oil and gas well environments.
The material must meet the low-temperature toughness requirements: when the yield strength is ≥ 310MPa, the single value of impact absorption energy at -20 ºC is ≥ 32J, and the average value is ≥ 42J; when the yield strength is<310MPa, the single value is ≥ 20J, and the average value is ≥ 27J.
High strength alloy steel
Conventional carbon steel (such as 50 C12, 50 C4) or alloy steel (nickel chromium, chromium vanadium steel) used in non corrosive environments require mechanical performance improvement through processes such as hot rolling and cold drawing.
2, Manufacturing standards
Chinese National Standard (GB/T 31049-2022)
It is stipulated that the top drive Main shaft needs to undergo static load tensile testing, and the parameters corresponding to different drilling depths should be clarified (such as Main shaft inner diameter ≥ 102mm at a drilling depth of 15000 meters, and short-term maximum torque ≥ 150kN · m).
New technical specifications for direct drive top drive have been added, requiring the removal of mechanical transmission mechanisms when the Main shaft is directly connected to the motor, in order to improve transmission efficiency to 95%.
API Standard (API Spec 8C/8A)
The design of the main load-bearing component needs to verify the high and low stress zones through finite element analysis, and the safety factor needs to meet the requirements of PSL1 or PSL2 level.
Load verification test is required (e.g. DQ70 top drive test load ≥ 9000kN). Selection and Certification

Land and ocean drilling and production need to be adapted to GB/T 31049 or API standards respectively. Products that have passed ISO 9001/API dual certification can enter the international market.
The direct drive Main shaft requires additional verification of the electromechanical integration reliability between the motor and the Main shaft due to the cancellation of the gearbox.

Company Profile

SHANDONG VS PETROLEUM TECHNOLOGY CO.LTD (VSP)

SHANDONG VS PETROLEUM TECHNOLOGY CO.LTD (VSP), founded in 2010, takesthe Manufacturing,mport & Export of petroleum equipment as the main businessand the oil&gas drilling logistics support and technical services as the carrier, thisenables it to meet the increasing demand of equipment for domestic and foreignpetroleum industry. VSP has independently developed and launched the DQ seriestop drive, which are suitable for drilling operations at depths ranging from 2000 to7000 metres. lt also provide OEM parts and substitutes for top drive Of VARCO,TE-SCO,CANRIG,TPEC,JH,BPM,HongHua.With 16 years of experience in the top drive market, we have established a com-plete OEM import channel in the United States, Canada, and the European Union.Through strict price and quality control

FAQ

1-Package and transportation
According to the different characteristics of goods and customer needs, we provide a variety of packaging methods, can also be packaged according to customer requirements, packaging types include wooden boxes, iron shelves, environmental protection paper boxes, containers, etc., to ensure the safety and integrity of goods in the process of transportation:
Wooden case packaging: suitable for heavy or large volume goods, such as machinery and equipment, large parts and so on. Wooden pallet packaging has high load-bearing capacity and stability, can effectively prevent the goods from moving or damaged in the process of transportation
Paper box packaging: suitable for lightweight, fragile or regular small goods, such as electronic products, daily necessities, etc. Environmental paper box is not only low cost, but also has good environmental performance
Wood pallet packaging: The goods are fixed on the wooden pallet and reinforced with bolts or nails to ensure that the goods are closely combined with the wooden pallet. For heavy goods, additional support structures are added to prevent the goods from tilting during transportation
Container packaging: suitable for the transportation of large quantities of goods, can effectively use space, reduce transportation costs. The interior of the container can be customized according to the characteristics of the goods to ensure the safety of the goods
2-Marks and labels:
The name, specification, quantity, destination, transportation requirements and other information of the goods shall be clearly marked on the packaging surface to ensure identification and convenient operation during transportation
For special goods (such as fragile goods, dangerous goods), post a prominent warning label to remind the transport personnel to pay attention to the operation.
 

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