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:
Accu-Tab tablets, which are 1 Â¼-inch thick, are composed of calcium hypochlorite (cal hypo), a versatile and effective chemical for delivering chlorine into water. Cal hypo is more pH-friendly than chlorine gas, liquid bleach or trichlor tablets, requiring fewer adjustment chemicals which in turn makes water balance easier to achieve.