This report is intended to introduce the structure and working principle of spiral gasanchor and explain the calculation formulae for separation coefficient.
本文介绍了螺旋气锚的结构形式、工作原理及分离系数的计算公式，论述了影响分离系数的各种因素。
2
The results mentioned above can guide optimum of the number of the settling cup of the multicup isoflux gasanchor and get good effect in the application in the oil field.
上述研究成果可以指导多杯等流型气锚的沉降杯个数的优化，并在现场应用中获得了好的效果。
3
Ortherwise, the eccentric gasanchor, gas lift valve and surface check valve are installed to automatically unload the gas from the deeper layer and annulus between the tubing and the casing.