SHENGLI XINDA

The invention relates to a multi-layer composite anti eccentric wear continuous sucker rod and a preparation device and method thereof. A section or section of the outer surface of a fiber-reinforced resin matrix composite rod is coated with a thermosetting wear layer. It is made of polyurethane, fluorocarbon coating, modified epoxy resin, vinyl ester resins, unsaturated polyester, phenolic resin. It uses multi-layer composite winding and pultrusion or weaving and pultrusion manufacturing process. From the inside to the outside is the inner longitudinal fiber, winding layer or braided layer and the outer longitudinal fiber. In this way, the rod body becomes and its continuous length is 0~5000m. It brings beneficial effects. It not only increasgs radial strength and axial compressive strength, but also makes the thermosetting wear-resistant layer corrosion resistance and resistance to wear performance increased by 30%, and the temperature resistance is up to 190 ℃. At the same time, the bonding length between the sucker rod and the thermosetting wear-resisting layer is long and the strength is very high, which avoids the slippage and delamination of the anti-eccentric wear layer from the sucker rod surface in the normal operation of the oil well. The invention has established the leading position of Xinda Group composite sucker rod in the industry.

 

Composite sucker rod is our core product. Around the core products we do a good job of patent layout and find the patent protection point. At present, we have 22 oil sucker rod patents, of which 2 inventions,20 utility models.