Reverse Circulation definition

Reverse Circulation or “RC” means a machine that uses a bit attached to a down-hole hammer to produce a hole. Unlike diamond drilling, RC drilling produces samples of rock cuttings rather than a sample of rock core. The down-hole hammer is powered by compressed air, which also acts as the medium bringing the drill cuttings up to surface.
Reverse Circulation means a drilling method using a tri-cone bit, during which rock cuttings are pushed from the bottom of the drill hole to the surface through an outer tube by liquid and/or air pressure moving through an inner tube.

Examples of Reverse Circulation in a sentence

  • Reverse Circulation (RC) drilling, including two pre-collar holes, consisted of fifteen holes for a total footage of 2,537 meters.

  • Given the arid local climate and minimal annual rainfall, roadways remain in excellent shape year-round.ValOre completed an on budget 11,120-metre (“m”) drill program in 2021 (108 holes total), comprised of 1,828 m of Reverse Circulation (“RC”) drilling in 38 holes, and 9,292 m of core drilling in 70 holes.

  • Reverse Circulation (RC) Drilling is much faster than the Wireline Drilling and is mainly carried out in hard rock formation.

  • Phoenix hold over 2000 Enterprise Agreements with Microsoft and receive a rebate from Microsoft which has not been disclosed and will make the contract profitable to them overall.

  • Significant gold intersections (discoveries) outlined by AC drilling were followed up with both Reverse Circulation (RC) and Diamond Drilling (DD) and subsequent grid drilling to outline resources.

  • In 2012, the Company completed about 800 km of helicopter-borne high-resolution magnetics and drilled 3,630m of Reverse Circulation (RC) drilling in 14 widely spaced holes and identified a porphyry copper-gold deposit.

  • The 2016 Resource is based on a total of 440,009 m of drilling (to an average vertical depth of 120 m), including 283,940 m of Reverse Circulation (“RC”) (4,703 holes) and 156,069 m of Diamond Drilling (“DD”) (1,025 holes).

  • The geological information provided by the core holes greatly reduces the risk of selecting inappropriate Reverse Circulation Large Diameter Drilling (RC LDD) hole locations.

  • Barrack Mines Ltd drilled 43 diamond holes for 15,353m, 638 Reverse Circulation holes for 55,343m.

  • Greatland Gold completed drill targeting and drilling of nine Reverse Circulation (RC) drill holes with core tails for a total of approximately 6,800m in 2018.

Related to Reverse Circulation

  • release for free circulation means the procedure laid down in Article 201 of Regulation (EU) No 952/2013;

  • Circulation means the process of submitting an initiative or referendum petition

  • Flocculation means a process to enhance agglomeration or collection of smaller floc particles into larger, more easily settleable particles through gentle stirring by hydraulic or mechanical means.

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  • SEBI Circular means circular no. CIR/CFD/CMD/4/2015 dated September 9, 2015, issued by the SEBI on continuous disclosure requirements for listed entities, as amended or substituted from time to time;

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  • Publicly available information means information that is

  • Transaction Report is that certain report of transactions and schedule of collections in the form attached hereto as Exhibit C.

  • Legal newspaper means a newspaper meeting the requisites

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  • Scheme Circular means any circular to the shareholders of the Target to be issued by the Target setting out the proposals for any Scheme.

  • Unpublished price sensitive information or UPSI means any information, relating to a company or its securities, directly or indirectly, that is not generally available which upon becoming generally available, is likely to materially affect the price of the securities and shall, ordinarily including but not restricted to, information relating to the following: –

  • Official newspaper means any newspaper designated by the Board pursuant to R.S.35:1-1 et seq.

  • electronic auction means an iterative process that involves the use of electronic means for the presentation by suppliers of either new prices, or new values for quantifiable non-price elements of the tender related to the evaluation criteria, or both, resulting in a ranking or re-ranking of tenders;

  • E-cigarette means any electronic oral device, such as one composed of a heating element and battery or electronic circuit, or both, which provides a vapor of nicotine or any other substances, and the use or inhalation of which simulates smoking. The term shall include any such device, whether manufactured, distributed, marketed, or sold as an e-cigarette, e-cigar, and e-pipe or under any other product, name, or descriptor.

  • Speech or language impairment means a communication disorder, such as stuttering, impaired articulation, a language impairment, or a voice impairment, that adversely affects a child’s educational performance.

  • Watch List means that list maintained by Investments Compliance which includes names of issuers about which certain persons within MetLife may, as a result of a special relationship or otherwise, appear to or actually possess material nonpublic information, together with the names of those persons.

  • Home inspection report means a written report that is