głowica eksploatacyjna: Christmas tree
odwiert: bore-hole, wellbore, well

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Note added at 2002-05-23 13:37:54 (GMT)
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WELLHEAD

1. n. [Drilling] 1661

The system of spools, valves and assorted adapters that provide pressure control of a production well.

See: Texas deck, casing string, casinghead, day rate
2. n. [Well Completions] 2892

The surface termination of a wellbore that incorporates facilities for installing casing hangers during the well construction phase. The wellhead also incorporates a means of hanging the production tubing and installing the Christmas tree and surface flow-control facilities in preparation for the production phase of the well.

http://www.glossary.oilfield.slb.com/Display.cfm?Term=wellhe...

Obrazek:

http://www.glossary.oilfield.slb.com/DisplayImage.cfm?ID=533

CHRISTMAS TREE

1. n. [Drilling] 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, shut-in bottomhole pressure, shut-in pressure
2. n. [Well Completions] 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.

http://www.glossary.oilfield.slb.com/Display.cfm?Term=Christ...

Obrazek:

http://www.glossary.oilfield.slb.com/DisplayImage.cfm?ID=476