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Wellhead or Christmas tree
- Thread starter Jyop92
- Start date
LittleInch
Petroleum
The wing valve is then the one which takes all the effort and wear of closing against a moving flow. The wing valve is the easiest valve to replaceif it starts to pass.
Then master valve then SSSV.
SSSV are difficult to open with a pressure difference. If you close the SSSV first you can have a large pressure difference and then when your well tries to restart you might find it hard to reopen the SSSV.
Often SSSV is NOT closed unless you really need it.
Look up how an SSSV works and you'll realise why.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
Then master valve then SSSV.
SSSV are difficult to open with a pressure difference. If you close the SSSV first you can have a large pressure difference and then when your well tries to restart you might find it hard to reopen the SSSV.
Often SSSV is NOT closed unless you really need it.
Look up how an SSSV works and you'll realise why.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
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