Petroleum Goodies: Sidewall Core |
| Posted: 05 May 2011 10:00 AM PDT Sidewall Core: A core obtained from the side of the borehole, typically by a wireline tool. Sidewall cores can be obtained by using percussion or mechanical drilling. Percussion cores are taken by shooting hollow bullets into the formation. The bullets are connected to the instrument by fasteners, and are recovered, along with the core inside, by pulling up the tool and the fasteners. Percussion coring equipment normally carry 20 to 30 bullets, but 2 or 3 instruments can be combined on one run in the hole. Commonly used in drilling and formation evaluation. Similar Posts: |
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