Oil & Gas Glossary 1.0
OIL & GAS TECHNICAL TERMS GLOSSARY
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Search Result for Tree
tree saver tool
A tubular device employed as an isolation tool inside the Christmas tree, to increase the tree's pressure rating during stimulation.
tree
The wellhead.
wing
The horizontal valving on a tree.
hammering-up
Connection of treating line during well servicing, from pump trucks to tree/well
gauge joint
The heaviest-wall casing section of the string, usually located just below the preventers or tree.
spacing-out
Position the correct number of feet or joints of pipe from the packer to the surface tree, or from the rig floor to the stack.
quebracho
A South American tree that is a source of tannin extract, which was extensively used as a thinning agent for drilling mud, but is seldom used today.
Christmas tree
The control valves, pressure gauges, and chokes assembled at the top of a well to control the flow of oil and gas after the well has been drilled and completed.
tubing tester
A mechanically operated (tubing rotation) valve u used to shut off formation pressure above a packer, thus testing all connections form the packer to the tree.
master valve
1. a large valve located on the Christmas tree and used to control the flow of oil and gas from a well. Also called master gate. 2. the blind or blank rams of a blowout preventer (obsolete).
tubing head
A flanged fitting that supports the tubing string, seals off pressure between the casing and the outside of the tubing, and provides a connection that supports the Christmas tree.