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Drilling Techniques Overview

Drilling is a process that uses a rotating drill bit to cut a circular hole in solid materials by forcing the cutting edge of the bit against the workpiece at high revolutions. The bit cuts off chips as it drills into the workpiece from either outside the hole using a top-hammer drill or from within the hole using a down-the-hole drill. Drilling is an important first step in extracting oil and gas reserves.

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Angelina Biswas
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17 views1 page

Drilling Techniques Overview

Drilling is a process that uses a rotating drill bit to cut a circular hole in solid materials by forcing the cutting edge of the bit against the workpiece at high revolutions. The bit cuts off chips as it drills into the workpiece from either outside the hole using a top-hammer drill or from within the hole using a down-the-hole drill. Drilling is an important first step in extracting oil and gas reserves.

Uploaded by

Angelina Biswas
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid

materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the
work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces
the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is drilled.

. The hammering action can be performed from outside the hole (top-hammer drill) or within the hole
(down-the-hole drill, DTH). Drills used for horizontal drilling are called drifter drills.
It is important and first step in extraction of oil and gas reserves

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