Patent ID: 9574433
Date: 2017-02-21
CPC Classifications: E21B,G01V

Claim:
1. A method for placing wells in an area comprising a subterranean rock formation, comprising; at least one of installing and removing wells to maximize productivity of the subterranean rock formation; determining a performance index from a drilled well in the area; analyzing the performance index to identify an optimum number of wells to be placed in the area; wherein the performance index is determined by data from a selected time period during producing of the drilled well and an equation: wherein PI is the performance index, q is an average daily rate of the drilled well for the time period, dd is an average drawdown per day of the drilled well for the time period, cum. is a cumulative production of the drilled well for the time period, and GPI is a gross perforated interval of the well for the time period;