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2. Core sample - Wikipedia

   en.wikipedia.org/wiki/Core_sample

   Rock core samples, the product of a diamond rig. A pied butcherbird perches nearby. A core sample is a cylindrical section of (usually) a naturally-occurring substance. Most core samples are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow steel tube, called a core drill. The hole made for the ...

3. Schramm Inc. - Wikipedia

   en.wikipedia.org/wiki/Schramm_Inc.

   The company also manufactured the T130XD air core drilling rig owned by Geotec S.A., a Chilean-American joint venture drilling company. The T130 heavy drill was chosen by the general contractor for Plan B, Chilean firm Drillers Supply S.A., to widen one of the three 5.5 inches (14 cm) wide and 700 metres (2,300 ft) deep boreholes that were ...

4. Nabors Industries - Wikipedia

   en.wikipedia.org/wiki/Nabors_Industries

   Nabors Industries Limited is an American global oil and gas drilling contractor that has operated since 1972. Based in Houston, Texas, Nabors operates the world’s largest land drilling rig fleet, with around 500 rigs operating in over 25 countries – in almost every significant O&G basin on the planet. It also has the largest number of high ...

5. Drilling rig - Wikipedia

   en.wikipedia.org/wiki/Drilling_rig

   An automated drill rig (ADR) is an automated full-sized walking land-based drill rig that drills long lateral sections in horizontal wells for the oil and gas industry. [8] ADRs are agile rigs that can move from pad to pad to new well sites faster than other full-sized drilling rigs. Each rig costs about $25 million.

6. Exploration diamond drilling - Wikipedia

   en.wikipedia.org/wiki/Exploration_diamond_drilling

   Drilling rig capable of both diamond and reverse circulation drilling. Exploration diamond drilling is used in the mining industry to probe the contents of known ore deposits and potential sites. By withdrawing a small diameter core of rock from the orebody, geologists can analyze the core by chemical assay and conduct petrologic , structural ...

7. NOV Inc. - Wikipedia

   en.wikipedia.org/wiki/NOV_Inc.

   NOV Tower in the Westchase district of Houston. NOV Inc., formerly National Oilwell Varco, is an American multinational corporation based in Houston, Texas.It is a worldwide provider of equipment and components used in oil and gas drilling and production operations, oilfield services, and supply chain integration services to the upstream oil and gas industry.