[[file:formation-fluid-pressure-and-its-application_fig5-13.png|thumb|{{figure number|1}}Typical DST tool, the configurations of the tool during a DST, and the periods of a DST. Modified. Copyright: Dalhberg;<ref name=ch05r5 /> courtesy Springer-Verlag.]]
+
[[file:formation-fluid-pressure-and-its-application_fig5-13.png|300px|thumb|{{figure number|1}}Typical DST tool, the configurations of the tool during a DST, and the periods of a DST. Modified. Copyright: Dalhberg;<ref name=ch05r5 /> courtesy Springer-Verlag.]]
There are three major types of periods during a typical DST:
There are three major types of periods during a typical DST: