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edits
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Line 142:
Line 142: + − + − − − + − | Hole washes out − | Caliper > bit size − |- − − −
Quick-look lithology from logs (view source)
Revision as of 18:18, 22 October 2014
, 18:18, 22 October 2014→Property measured
{| class = "wikitable"
{| class = "wikitable"
|-
|-
| Hard, inert rock || Hole in gauge || Caliper = bit size
|-
|-
| Hard, inert rock
| Soft or [[Brittleness|brittle]] rock || Hole washes out || Caliper > bit size
| Hole in gauge
| Caliper = bit size
|-
|-
| Soft or [[Brittleness|brittle]] rock
| Permeable rock || Mudcake builds up || Caliper
| Permeable rock
| Mudcake builds up
| Caliper
|}
|}