Founder Effect. The Founder Effect is defined as a type of bottleneck, a type of genetic drift describing the loss of the allelic variation that accompanies founding of a new population from a very small number of individuals (a small sample of a much larger source population).
For example, two well drilling companies -- one in Pennsylvania and one that covers New Hampshire, Vermont and central Massachusetts -- state the cost for drilling a well and outfitting it with pump equipment averages between $5,000 and $7,000, at the time of publication.
The cost of a 6Â­casing, 6,000 m (19,700 ft) geothermal well compares satisfactorily with a limited number of oil and gas wells from the JAS database. The estimated cost of the 6,000 km EGS well is $12.28 million vs. an average JAS oil and gas well cost of $18 million.hapter 6 Drilling Technology and Costs 6.3.3 Updated geothermal well costs The MITDD drilling cost index was used to update completed well costs to year 2004 U.S. $ for a number of actual and predicted EGS/HDR and hydrothermal wells.