注入头与连续油管的摩擦系数分析与优化

注入头的摩擦系数是连续油管装备设计过程中的一个重要参数,关系到夹紧油缸的选型,以及夹紧力的大小问题。而如果夹持力施加不当,会直接损坏连续油管。如果夹持力过小,夹持块夹紧连续油管时,会导致连续油管打滑,夹持块夹不住连续油管,直接导致将连续油管表面刮伤,由于连续油管属于易损件,价格昂贵,无法修复,一旦受损,只能降级使用或报废。如果夹持力过大,虽然可以夹持住连续油管,但是夹持力过大,会直接影响连续油管的使用寿命。

The friction coefficient of injection head is an important parameter in the design of coiled tubing equipment, which is related to the selection of clamping cylinder and the size of clamping force. If the clamping force is not applied properly, the coiled tubing will be damaged directly. If the clamping force is too small, when the clamping block clamps the coiled tubing, it will cause the coiled tubing to slip, and the clamping block can not clamp the coiled tubing, which will directly lead to the surface scratch of the coiled tubing. Because the coiled tubing is a vulnerable part, it is expensive and can not be repaired. Once damaged, it can only be downgraded or scrapped. If the clamping force is too large, although the coiled tubing can be clamped, but the clamping force is too large, it will directly affect the service life of the coiled tubing.