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Line 147: − + − [[file:well-completions_fig10.png|thumb|{{figure number|10}}Qualitative description of perforations using (a) a casing gun and (b) a thru-tubing gun.]]+ + +
→Perforating methods
===Perforating methods===
===Perforating methods===
<gallery mode=packed heights=200px widths=200px>
well-completions_fig9.png|{{figure number|9}}Two perforating methods: (a) Perforating overbalanced with a casing gun and (b) perforating underbalanced with a thrutubing gun.
well-completions_fig10.png|{{figure number|10}}Qualitative description of perforations using (a) a casing gun and (b) a thru-tubing gun.
</gallery>
A well can be perforated three different ways:
A well can be perforated three different ways: