https://hallau.world/tags/python/ Recent content in Python on 👋HALLAU WORLD🌎 Hugo -- gohugo.io en-us CC SA-BY 4.0 Fri, 05 Jul 2019 05:26:18 -0600 https://hallau.world/post/bitsize-from-caliper/ Fri, 05 Jul 2019 05:26:18 -0600 https://hallau.world/post/bitsize-from-caliper/ Introduction A caliper log records the borehole size. When a logging tool is pulled up the well, a caplier arm opens or closes as it encounters zones of washout, mudcake, or zones of stable hole condition. If there is abundant washout or mudcake, many logging tools (bulk density, neutron, etc.) do not collect valid petrophysical data. Often a petrophysicist will use some cutoff (2.5 inches of washout, maybe) to determine whether they can use the data over that interval in their analysis or if they should instead throw it out.