A new type anti-whirl stabilizer is designed.The main body of the stabilizer can revolve freely to prevent or reduce the drilling string swirling, so as to reduce the damage to the drilling string.

• 设计了利用稳定器主体在螺旋套内可自由旋转原理来防止或减少钻柱涡动从而减少对钻柱破坏的新型防涡稳定器。