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1·This report is intended to introduce the structure and working principle of spiral gas anchor 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 gas anchor 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 gas anchor, 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.

大气量时应用偏心气锚安装气举阀与地面单流阀两步卸气，实现了下部产层和油套环空自动卸气。

4·The multi-cup uniform flux gas anchor is obviously better than ordinary gas anchor on effects of separating gas from fluid, the degassing efficiency will be greatly improved by the kind of gas anchor.

多杯等流型气锚在气液分离的效果上明显优于普通的气锚，采用该气锚对脱气效率会有较大提高。

5·The utility model is suitable for various oil and gas Wells and water Wells, and can directly do sand anchor operation under pumps.

本实用新型适用于各种油气井和水井，可直接做泵下砂锚。