Gas compressed Reverse Circulation Drilling Machine

Gas lift Reverse Circulation Drilling Machine is a kind of Drilling Equipment that uses gas lift rig syatem as working medium to transport cuttings from the bottom of well to the surface through gas lift principle. 

Gas lift uses the principle that the rising speed of gas is greater than that of liquid to push liquid or solid particles upward through the rise of gas. In a gas lift reverse circulation rig, gas is injected to the bottom of the well. As the gas rises, it drives cuttings up to the surface.

 The workflow of the gas lift reverse circulation drilling rig mainly includes the following steps: First, the gas is compressed by the compressor and injected to the bottom of the well; The gas then moves the cuttings upward as it rises from the bottom of the hole. Finally, the cuttings are piped to the surface for drilling.