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الجمعة، 17 نوفمبر 2017

Oil and Gas Well Completions

Tubinghead and X-mas tree
 
Tubinghead
Surface equipment from which the tubing is suspended
Xmas tree or valve array
Used to control well during production
Mounted above wellhead
Typically sourced from same manufacturer

Tubinghead Functions

Primary functions of tubinghead
Suspend tubing with hanger
Seal between tubing and annulus
Provide access ports to annulus
gas lift gas
inhibitor injection
circulating the well
Provide mounting for adapter flange or Xmas tree
Tubing Hanger Types 
Threaded Hanger Flange
used in low pressure wells (e.g. Pumping wells)
Boll Weevil Type
Ram Type Tubing Hanger
Boll Weevil Type
 Tubing Hanger for Bowl Type Tubing Head.
Less suitable to land tubing in tension

Ram Type Tubing Hanger
allows free tubing manipulation to latch tubing in tension
Tubing Hanger with Extended Neck
Hanger may have extended neck
Projects into base of X-mas tree or adapter flange
Sealed flow path through wellhead
Xmas tree or adapter interface
 
Adapter Flange


Cross-over between tubing hanger spool and x-mas tree
It can receive the extended tubing hanger neck
Feed through for:
electrical cables (ESP or sensors)
hydraulic controllines (sc-sssv)
sensor lines etc 
 
 
Oil and Gas Well Completions Reviewed by الحريف on نوفمبر 17, 2017 Rating: 5 Tubinghead and X- mas tree   Tubinghead • Surface equipment from which the tubing is suspended Xmas tree or valve array ...

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