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Oilfield Glossary
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Oilfield Glossary

Christmas tree
1.  n.  [Drilling] ID: 1289

The set of valves, spools and fittings connected to the top of a well to direct and control the flow of formation fluids from the well.

See: cellar, formation fluid, shut-in bottomhole pressure, shut-in pressure
2.  n.  [Well Completions] ID: 2595

An assembly of valves, spools, pressure gauges and chokes fitted to the wellhead of a completed well to control production. Christmas trees are available in a wide range of sizes and configurations, such as low- or high-pressure capacity and single- or multiple-completion capacity.

See: choke, pressure gauge

Christmas tree
(Click to enlarge)


Christmas tree