rotary drilling

rotary drilling
Drilling a well by the rotation of a bit. A method frequently used in boring for oil. Boring is done by rotation of a bit attached to a steel pipe, which, when so used is called a "drill stem." A smaller bore, called a "rat hole," sometimes precedes, and is reamed out to obtain the full-sized hole. To aid operation, drilling fluid (mud laden water) is pumped into the upper end of the drill stem and escapes into the well at high velocity through holes in the bit. It rises through the space between the pipe and the earth walls of the well and carries to the surface cuttings made by the bit. It holds back and seals the penetrated formations. Hydrostatic pressure of the drilling fluid is very great and the fluid in a penetrated formation will not flow into the well unless it is under greater pressure. Honolulu Oil Corp. v Halliburton, 306 US 550, 83 L Ed 980, 59 S Ct 662.

Ballentine's law dictionary. . 1998.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …   Wikipedia

  • drilling machinery —       equipment used to drill holes in the ground for such activities as prospecting, well sinking (petroleum, natural gas, water, and salt), and scientific explorations. Drilling holes in rock to receive blasting charges is an operation in… …   Universalium

  • drilling fluid — See rotary drilling …   Ballentine's law dictionary

  • rotary table — rotary table, a heavy steel turntable which turns the bit in drilling for oil …   Useful english dictionary

  • Drilling rig (petroleum) — The equipment associated with a rig is to some extent dependent on the type of rig but typically includes at least some of the following items: #Mud tank #Shale shakers #Suction line (mud pump) #Mud pump #Motor or power source #Vibrating hose… …   Wikipedia

  • Rotary table (drilling rig) — A [http://www.glossary.oilfield.slb.com/Display.cfm?Term=rotary%20table Rotary table] is a mechanical device on a drilling rig that provides clockwise (as viewed from above) rotational force to the drill string to facilitate the process of… …   Wikipedia

  • Drilling — For other uses, see Drilling (disambiguation). Drilling is a cutting process that uses a drill bit to cut or enlarge a hole in solid materials. The drill bit is a multipoint, end cutting tool. It cuts by applying pressure and rotation to the… …   Wikipedia

  • Drilling — is the process of constructing a mine mostly of a cylindrical form (shot hole, well, mine shaft) by means of rock disintegration at the downhole with spalls removal. Drilling is mainly performed in the Earth crust. There are the following… …   Glossary of Oil and Gas

  • Rotary steerable system — A rotary steerable system is a new form of drilling technology used in directional drilling. It employs the use of specialized downhole equipment to replace conventional directional tools such as mud motors.They are generally programmed by the… …   Wikipedia

  • Drilling fluid — This article is about fluids used when drilling a well. For fluids used with drill bits during metal working, see cutting fluid. Driller pouring a foaming agent down the rod string on a drilling rig In geotechnical engineering, drilling fluid is… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”