Population genetics. Population genetics is a subfield of genetics that deals with genetic differences within and between populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure.
In the fluid-filled case, the wellbore is presumed to be full of either all liquid or gas which gets compressed as afterflow continues into the wellbore. The wellbore storage constant (C) is a function of the wellbore volume (Vw) and the wellbore fluid compressibility (cwb) as shown below: For a fluid-filled wellbore:
Well perforating is the process of punching a hole in the wellâs cement liner (or casing) in order to enable the reservoir connection to be made. Establishing a connection to the wellbore means the well can begin to flow and production can begin. For injection wells, it means that injection can commence.