services and drilling founded 1988 headquarters melhus norway products directional core drilling and borehole survey tools website www.devico.com devico as is the sole company to offer directional core drilling services worldwide . devico as also rents various borehole survey instruments for the mining industry and geotechnical projects . the head office is located in melhus norway . the company have until now been operating in more than 30 countries worldwide . history edit launched in 1988 by mr. viktor tokle . introduction edit the devidrill devico as directional core barrel and rotary steerable system was launched in 1988 . it was in use until 2001 when the wireline version of the devidrill was introduced . the new version was a big improvement since it allows the drill string to stay in the borehole during steering and coring . devico as has developed their own set of borehole survey instruments to be used together with the devidrill . in 2002 a miniature version of the survey tool was launched that made it possible to survey throughout the drill bit . to survey in magnetic environment devico has developed a strain gauge based survey tool named deviflex . this tool became available in 2004 . references edit www.devico.com retrieved from https en.wikipedia.org w index.php title devico as & oldid 578021580 categories drilling technology navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages norsk bokm l edit links this page was last modified on 20 october 2013 at 20 36 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view