A new type of anchoring instrument in oil well

KYLM (Yelimao in Chinese) is a new type of multifunction instrument used in oil well to anchor tubing. It consists of anchorage system, anchoring mechanism, unanchored system and oilventing system. It can not only anchor the tubing in well to prevent creeping or curling, but release the petroleum in the tube to avoid pollution. The system of the instrument is reasonable and convenient. It has been successfully applied in more than 100 oil wells.