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  2. List of free geology software - Wikipedia

    en.wikipedia.org/wiki/List_of_free_geology_software

    This is a list of free and open-source software for geological data handling and interpretation. The list is split into broad categories, depending on the intended use of the software and its scope of functionality. Notice that 'free and open-source' requires that the source code is available and users are given a free software license.

  3. Drilling formula sheets - Wikipedia

    en.wikipedia.org/wiki/Drilling_formula_sheets

    Drilling Formula Sheets is a set of Drilling Formulas used commonly by drilling engineers in the onshore and offshore oil drilling industry. They are used as part of a key piece of engineering work called Well Control .

  4. Well drilling - Wikipedia

    en.wikipedia.org/wiki/Well_drilling

    Tricone rock bit. Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring.

  5. Request for quotation - Wikipedia

    en.wikipedia.org/wiki/Request_for_quotation

    A request for quotation (RfQ) is a business process in which a company or public entity requests a quote from a supplier for the purchase of specific products or services. RfQ generally means the same thing as Call for bids (CfB) and Invitation for bid (IfB). [1] An RfQ typically involves more than the price per item.

  6. Borehole - Wikipedia

    en.wikipedia.org/wiki/Borehole

    As the depth of the holes varied, the drilling of a single well could last nearly one full decade. [4] It was not up until the 19th century that Europe and the West would catch up and rival ancient Chinese borehole drilling technology. [10] [5] For many years, the world's longest borehole was the Kola Superdeep Borehole in Russia.

  7. Template:Request quotation - Wikipedia

    en.wikipedia.org/wiki/Template:Request_quotation

    See a monthly parameter usage report for Template:Request quotation in articles based on its TemplateData. TemplateData for Request quotation The template is used to request a direct quote from the cited source, so that it can be verified that the information in the source supports the statement in the article.