From time to time, we re-post well-received editorial from VALVEMagazine.com. The following article initially ran on Sept. 27, 2017.
In the complicated but vital industry of drawing oil and gas out of the earth and getting it to the surface, people often get confused about the difference between a Christmas tree assembly and a wellhead. Although the terms are used interchangeably, they are not the same piece of equipment. Each has valves and related equipment that help it control and guide the flow of this precious resource.