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Unit 11. Drilling Engineering

Lead-in

Ex. 1. Study the following definitions.

      1. Structures

derrick

буровая вышка

The structure used to support the crown blocks and the drillstring of a drilling rig. Derricks are usually pyramidal in shape.

drilling rig

буровая установка

The machine used to drill a wellbore. In onshore operations, the rig includes virtually everything except living quarters.

      1. Pipes

casing, casing string

обсадка, обсадная колонна

Large-diameter pipe lowered into an openhole and cemented in place.

joint

секция

A section of pipe, usually referring to drillpipe, casing or tubing. While there are different standard lengths, the most common drillpipe joint length is around 9 m.

string

колонна труб

A combination of connected pipes used for drilling (drill string), protecting and isolating the formation (casing string) or producing reservoir fluids to the surface (production string).

tubing

НКТ (насосно-компрессорный трубопровод)

A pipe used to produce reservoir fluids. Production tubing is assembled with other components to make up the production string

      1. Other equipment

blowout preventer

противовыбросовый превентор

A large valve at the top of a well that may be closed if the drilling crew loses control of formation fluids.

Christmas tree

фонтанная арматура

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

drill bit

долото, буровая коронка

The tool used to crush or cut rock. The bit is on the bottom of the drillstring and works by scraping or crushing the rock, or both, usually as part of a rotational motion.

drilling mud (fluid)

буровой раствор, промывочная жидкость

Special fluid used while drilling wells by pumping it through the dril string. The main purposes of drilling mud are to remove cuttings produced by the bit, prevent fluids and gas from the formation from entering the wellbore and lubricating the drilling bits.

pit

амбар

A large tank that holds drilling fluid and other fluids on the rig.

slurry

(цементный) раствор

A mixture of suspended solids and liquids. Cement is a slurry and is often referred to as such.

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