drilling

the act of drilling the act of drilling a hole in the earth in the hope of producing petroleum

Drilling is the process of using a drill bit in a drill to produce holes.

Drilling in metal - Under normal usage, swarf is carried up and away from the tip of the drill bit by the fluting. The continued production of chips from the cutting edges produces more chips which continue the movement of the chips outwards from the hole. This continues until the chips pack too tightly, either because of deeper than normal holes or insufficient ''backing off'' (removing the drill slightly or totally from the hole while drilling). Lubricants and coolants (i.e. cutting fluid) are sometimes used to ease this problem and to prolong the tools life by cooling and lubricating the tip and chip flow. Coolant is introduced via holes through the drill shank Drill_bit#Gun_drillsee gun drill bits.Straight fluting is used for copper or brass, as this exhibits less tendency to "dig in" or grab the material. If a helical drill (twist drill) is used then the same effect can be acheived by whetstonestoning a small flat parallel with the axis of the drill bit.For heavy feeds and comparatively deep holes oil-hole drills can be used, with a lubricant pumped to the drill head through a small hole in the bit and flowing out along the fluting. A conventional drill press arrangement can be used in oil well drilling, but is more commonly seen in automatic drilling machinery in which it is the workpiece that rotates rather than the drill bit.

Drilling in wood - Wood being softer than most metals, drilling in wood is considerably easier and faster than drilling in metal. Cutting fluids are not used or needed. The main issue in drilling wood is assuring clean entry and exit holes and preventing burning. Avoiding burning is a question of using sharp bits and the appropriate cutting speed. Drill bits can tear out chips of wood around the top and bottom of the hole and this is undesirable in fine woodworking applications.Holes are easier to start in wood as the drill bit can be accurately positioned by pushing it into the wood and creating a dimple. The bit will thus have no tendency to wander. In metal working, an accurate position needs to be marked with a punch to avoid the bit wandering from the desired position of the hole. The ubiquitous twist drill bits used in metalworking also work well in wood, but they tend to chip wood out at the entry and exit of the hole. In some cases, as in rough holes for carpentry, the quality of the hole does not matter, and a number of bits for fast cutting in wood exist, including spade bits and self-feeding auger bits. Many types of specialised drill bits for boring clean holes in wood have been developed, including brad-point bits, Forstner bits and hole saws.Metalworking - Drilling and threading Category:Mechanical hand toolsCategory:Drilling and !threadingCategory:Woodworking< /text> DEBUG REDIRECT (drilling and threading)

Dipl.-Ing. Jakub Kadlecik
Precise turning on CNC lathes.
http://www.bakcnc.cz/

Theo Stefan OEG - used machinery trade
trade with used lathes, milling, drilling, grinding machines, presses, saws, shears and other
http://www.stefan-oeg.at/

Cypress Development Corp.
Cypress Development Corp. is a Canadian precious and base metal exploration company developing 2 gold projects in Red Lake, Ontario, Canada, and a zinc project, a silver/copper project, and 2 gold projects in Nevada, U.S.A.
http://www.cypressdevelopmentcorp.com/

Brunnenbau Horizontalbrunnen Spezialtiefbau Rohrvortrieb Wassergewinnung
Brunnenbau,Horizontalbrunnenbau,Ranney,Fally,Fehlmann,Preussag,horizontal collector well, Rohrvortrieb,Geothermie,Projektleitung,Beratung,waterwells,boreholes,kfw,gtz,Weltbank,water drilling,wasser,wassergewinnnung
http://www.bertram-brunnenbau.de/

Petrointernational
Global directory of product and service providers to the energy industry.
http://www.petrointernational.com/

Consolidated Abaddon resources Inc.
Consolidated Abaddon Resources Inc. is a Canadian uranium exploration company actively involved with the development of properties in the ATHABASCA BASIN of Northern Saskatchewan and the SIMS BASIN of Labrador. Property partners include International Uranium Corporation, and Triex Minerals Corp.
http://www.consolidatedabaddon.com/

Skyharbour Resources Ltd.
Skyharbour Resources Ltd. is a gold exploration company actively developing 5 strategically positioned properties in one of the most active gold exploration regions in Canada today, the RED LAKE MINING DISTRICT of Northwestern Ontario.
http://www.skyharbourltd.com/

lubro star lubricators
The LubroStar®-System consists of a robust special steel pressure tank, an infinitely adjustable dosage device, and the LubroStar®-Synthetic Activator (LSSA). This synthetic lubricant and de-icing agent, which is added to the compressed air, has been developed to meet the exact requirements of compressed-air-operated tools and machines.
http://www.lubrostar.com/

Bayfield Ventures Corp.
Bayfield Ventures Corp. is actively involved in the acquisition, exploration and development of precious and base metal properties in the South Gobi region of Mongolia, and in the Red Lake region of Ontario, Canada.
http://www.bayfieldventures.com/

Snowfield Development Corp.
Diamond exploration in Canada.
http://www.snowfield.com/

Petroleum Engineering Calculations
Online computing and graphics in petroleum, oil and gas engineering
http://www.peteng.com/

MPH Ventures Corp.
MPH Ventures Corp. (TSX.V: MPS) is a natural resource exploration company actively involved with the development of two natural gas development projects located in Goliad and McMullen Counties, south Texas.
http://www.mphventurescorp.com/

Ocean Drilling Program (ODP)
"An International Partnership in Geological Oceanography" -- Texas A&M University
http://www-odp.tamu.edu/

Noble Drilling Services Inc.
Operating approximately 50 offshore drilling rigs worldwide.
http://www.noblecorp.com/

Parker Drilling Company
Worldwide service company providing drilling and rental tool services to the energy industry.
http://www.parkerdrilling.com/