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2. Completion (oil and gas wells) - Wikipedia

   en.wikipedia.org/wiki/Completion_(oil_and_gas_wells)

   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 ...

3. Tubing hanger - Wikipedia

   en.wikipedia.org/wiki/Tubing_hanger

   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. It also serves to seal-in the ...

4. Wellhead - Wikipedia

   en.wikipedia.org/wiki/Wellhead

   Provides a means of tubing suspension (Tubing is removable pipe installed in the well through which well fluids pass). Provides a means of pressure sealing and isolation between casing at surface when many casing strings are used. Provides pressure monitoring and pumping access to annuli between the different casing/tubing strings.

5. Casing (borehole) - Wikipedia

   en.wikipedia.org/wiki/Casing_(borehole)

   Casing Diameters of a Borehole Casing Diagram premium gas tight connections on a casing string. Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream.

6. Glossary of oilfield jargon - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_oilfield_jargon

   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.'

7. Casing hanger - Wikipedia

   en.wikipedia.org/wiki/Casing_hanger

   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.

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9. List of abbreviations in oil and gas exploration and production

   en.wikipedia.org/wiki/List_of_abbreviations_in...

   THF – tubing hanger flange; THF – tetrahydrofuran (organic solvent) THP – tubing hanger pressure (pressure in the production tubing as measured at the tubing hanger [citation needed]) THRT – tubing hanger running tool; THS – tubing head spool; TIE – tie-in log; TIH – trip into hole; TIS – tie-in spool; TIT – tubing integrity test