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A tubing hanger is a component used in the completion of oil and gas production wells. It is set in the tree or the wellhead and suspends the production tubing and/or casing . Sometimes it provides porting to allow the communication of hydraulic , electric and other downhole functions, as well as chemical injection.
The tubing hanger may be manufactured with rubber or polymer sealing rings to isolate the tubing from the annulus. The tubing hanger is secured within the tubing head flange with lag bolts. These lag bolts apply a downward pressure on the tubing hanger to compress the sealing gaskets and to prevent the tubing from being hydrostatically or ...
The workover begins by killing the well then removing the wellhead and possibly the flow line, then installing a B.O.P. commonly known as a blowout preventer, then lifting the tubing hanger from the casing head, thus beginning to pull the completion out of the well.
The instrument hanger is a downhole tool on which downhole gauges or instruments that are to be temporarily left in the wellbore are attached. The tubing hanger attaches to the topmost tubing joint in the wellhead to support the tubing string. Hitch: Rig employees refer to their work period as a 'hitch.'
Casing hangers must be designed to take the full weight of the casing, and provide a seal between the casing hanger and the spool. Casing Hangers may also be suspended within the wellhead by means of radial distortion of the wellhead bore e.g. the "Pos-Grip" method. This is installed to support the individual casing strings in the well.
tubing hangers; tubing head adapter; Functions. A wellhead serves numerous functions, some of which are: Provide a means of casing suspension (Casing is the ...
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