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Christmas tree

Group of devices at the head of the producing well that regulate the flow of oil being extracted from the deposit.
Christmas tree Device that measures the oil pressure inside the producing well. Calibrated opening of a flow line through which oil flows; it is used to limit the flow from a producing well. Steel piping that carries oil from the well to the refining facilities. Device that regulates the flow of oil extracted from the well and carries it in flow lines, here toward an oil pipeline. First column of large-diameter tubes that are inserted into the producing well mainly to strengthen its walls. Last column of small steel tubes to be inserted in the well; they are used to bring oil to the surface. Equipment to which oil production and extraction tubes and devices (Christmas tree, tubing) are attached. Main device that regulates the flow of oil; it can completely shut off the outflow.

pressure gauge

Device that measures the oil pressure inside the producing well.

flow bean

Calibrated opening of a flow line through which oil flows; it is used to limit the flow from a producing well.

pipeline

Steel piping that carries oil from the well to the refining facilities.

tubing valve

Device that regulates the flow of oil extracted from the well and carries it in flow lines, here toward an oil pipeline.

casing first string

First column of large-diameter tubes that are inserted into the producing well mainly to strengthen its walls.

tubing

Last column of small steel tubes to be inserted in the well; they are used to bring oil to the surface.

tubing head

Equipment to which oil production and extraction tubes and devices (Christmas tree, tubing) are attached.

master gate valve

Main device that regulates the flow of oil; it can completely shut off the outflow.