Which Parts Of The Gas Production Wellhead Device Are Composed ?

The gas production wellhead device is mainly composed of three parts: casing head, tubing head and oil (gas) tree. The casing head is mainly used to connect each layer of casing and oil layer casing, and seal the annulus between the two layers of casing. The tubing head is mainly used to suspend the running tubing and seal the annular space between tubing and casing. The Christmas tree is mainly used to open and close wells, adjust pressure and output during production, perform pressure gauge testing, wellhead pressure measurement, and small-scale fishing operations.

Gas production wellhead equipment, including casing flange, tubing head and Christmas tree; its characteristics are: on the left and right sides of the tubing head and the left, right and bottom three sides of the Christmas tree cross, two need to be installed in series. The part of the flat valve is equipped with a manual one-piece valve; the valve body of the manual flat valve above the Christmas tree four-way is connected with the Christmas tree four-way into a whole, so that it becomes a four-way flat valve component.

For the conjoined valve and the four-way flat valve, you can choose the dark-stem flat valve or the open-stem flat valve as the combined object; except for the valve body and the stem, the other similar parts of the flat valve are common to each other. Therefore, on the basis of keeping the original function of the wellhead device unchanged, the space size of the gas production wellhead device is greatly reduced, raw materials and installation time are saved, the link that may cause high pressure leakage is reduced, and it is more conducive to the on-site manipulation of oil workers; thus To achieve the purpose of reducing consumption and increasing benefits.