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At the Upper Palatinate location, however, it was hoped to reach the Erbendorfkörper – a deep-lying mass that is believed to be on the boundary of a former continental plate and is identified by its characteristic reflection of seismic waves. Even though the Erbendorfkörper was not reached, the KTB drilling was widely considered a success ...
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.
For example, if the tool fails at 1,500 ft (460 m) while drilling with a triple rig (able to trip 3 joints of pipe, or about 90 ft (30 m) feet, at a time), then it would generally be faster to pull the tool out of the hole than it would be to rig up wireline and retrieve the tool, especially if the wireline unit must be transported to the rig.
This oval shape can cause a 2-arm caliper log to overestimate the size of the borehole, if its arms get stuck in the long-axis. In most cases, the borehole's circumference will not be a perfect circle and therefore a caliper tool with several arms is required to obtain a true understanding of the size and shape of the borehole.
For many years, the world's longest borehole was the Kola Superdeep Borehole in Russia. From 2011 until August 2012 the record was held by the 12,345-metre (40,502 ft) long Sakhalin-I Odoptu OP-11 Well, offshore the Russian island Sakhalin. [11] The Chayvo Z-44 extended-reach well took the title of the world's longest borehole on 27 August 2012 ...
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Many national regulations stipulate that for any well drilled, a set of samples must be archived with a national body. For example, in the case of the UK with the British Geological Survey . The bulk of the cuttings require disposal. The methodology for disposal is dependent on the type of drilling fluid used. For water based drilling fluid ...
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