The compact wellhead serves the same purpose as the convnetional wellhead, that is to serve as the suspension point for the casing strings in the well. The difference is that the compact assembly is just that, compact. It facilitates the suspension and setting of the casing strings over a shorter height. This saves space a … Continue reading Compact Wellhead
The production tree represents the top of the topside production equipment. The tree is typically comprised of a series of valves, junctions and tubing so as to be able to control both the pressure and flow into and out of the well and subsequently the reservoir. Typically the tree attaches to the top of the … Continue reading Production Tree
The cellar represents the dugout that is a few feet subsurface, this facilitates the setting of the conductor casing, and the mounting of the wellhead. Now the subsurface placement of the wellhead facilitates the mounting of the production and valve tree at near surface level thus facilitating easy access and operation. The cellar allows for … Continue reading Cellar and Wellhead
The casing spool represents the upper resting place of a casing string. The spool forms part of the wellhead assembly, specifically it facilitates the casing string resting there, its load being distributed to and supported by the ground. The casing hanger sits within the casing spool's bowl, with it resting on the load shoulder. Casing … Continue reading Casing & Tubing Spool
Casing hanger – this is installed to support the individual casing strings in the well. This is the landing base or casing head. This is usually welded or screwed to the top of the surface casing string. The surface casing string serves as a foundation pile for the well. This transfers the hanging load to … Continue reading Wellbore Tubulars