Description
The hollow sucker rod is a special sucker rod designed for oil extraction with a high pour point, high viscosity, and high wax content. It is combined with threaded joints, sealing, and rod body. The rod body is made of a seamless steel tube and the threaded joint is connected with the rod body through friction welding and heat treatment. The pin thread is formed by a roller.
Features
- The threaded joint is designed with a bearing surface to make the joint more reliable.
- The hollow structure can be injected with hot oil, and vapor. It can also be used for running heating cables.
- High rigidity to bear large torque.
- Decrease the viscosity of the oil and the wax deposit in the well to increase the pump efficiency.
- There are plastic caps to protect the thread of the hollow sucker rod.
- Color painting on the plastic caps is available.
- Metal pallet package for saving space and convenient to transport.
Applications
- The hollow sucker rod is used for exploiting thickened oil, and crude oil of high solidification point and wax content.
- The hollow sucker rod can be used for flushing sand and salt, it is ideal for small wells and separate-layer oil exploitation.
- The hollow sucker rod can be used in oil extraction through a heat carrier. Inject the chemicals and heat carrier including the hot oil, hot water, and steam.
- The hollow sucker rod can be used in a hollow sucker rod electric heating device. Just run the electric cable in the center hole of the hollow sucker rod.
- The drive rod for the screw pumps is a special design of a hollow sucker rod that can be used for driving underground screw pumps. Because the hollow sucker rod has high rigidity and large torque resistance.
Classification
- Hollow sucker rod type: hollow sucker rod, hollow polished rod and hollow pony rod.
- Rod head type: internal thread rod head and external thread head.
- Connection type: coupling connection and direct connection.
- Coupling connection for two external thread rod head hollow sucker rod.
- Direct connection for one external and one internal thread rod head hollow sucker rod.
Package
The package of the hollow sucker rod has two types:
- Metal pallet.
- Wooden pallet and plastic film.
Specification of Hollow Sucker Rod And Hollow Pony Rod
Rod body | Nominal thread | O.D. Joint | Wrench size | Length | |||
---|---|---|---|---|---|---|---|
Diameter | Thickness | Thicknes | Length | Rod | Pony | ||
32mm | 5.5mm | 1-7/16" | 50mm | 35mm | 46mm | 7.5m - 9m | 0.6m, 1m - 3.5m |
34mm | 5.0mm, 5.5mm | 1-9/16" | 50mm | 35mm | 46mm | 7.5m - 9m | 0.6m, 1m - 3.5m |
36mm | 5.0mm, 5.5mm, 6.0mm | 1-9/16" | 50mm | 35mm | 46mm | 7.5m - 9m | 0.6m, 1m - 3.5m |
38mm | 6.0mm | 1-3/4" | 56mm | 41mm | 49mm | 7.5m - 9m | 0.6m, 1m - 3.5m |
42mm | 6.0mm | 1-7/8" | 60mm | 41mm | 54mm | 7.5m - 9m | 0.6m, 1m - 3.5m |
48mm | 5.5mm | 2" | 62mm | 41mm | 58mm | 7.5m - 9m | 0.6m, 1m - 3.5m |
Specification of Hollow Polished Rod
Rod body | Nominal thread | O.D. Joint | Wrench size | Length | ||
---|---|---|---|---|---|---|
Diameter | Thickness | Length | Thickness | |||
36mm | 6.0mm, 6.5mm | 1-9/16" | 50mm | 35mm | 46mm | 7.5m - 9m |
38mm | 6.0mm | 1-3/4" | 56mm | 41mm | 49mm | 7.5m - 9m |
42mm | 6.0mm | 1-7/8" | 60mm | 41mm | 54mm | 7.5m - 9m |