There are only a few gas recovery wellhead equipment manufacturers in China, and Shengji is one of them. The gas recovery wellhead and X-mas tree is used for the production of gas wells and controlling the flow rate and pressure of gas wells.

There are more stringent requirements for a gas recovery wellhead and X-mas tree, which demands excellent sealing performance in comparison to an oil recovery wellhead and X-mas tree.

The valve gate and seat are treated by a proprietary method to make them especially durable and accurate. The Shengji gas recovery wellhead and X-mas tree can also be used in fracturing and acidization.