An Unconventional but Definitive Analysis of a
South Texas Field’s Production Improvement
Production results from operational or capital investments are often difficult to quantify due to a field’s decline and other factors that introduce variability into the data. This was the case for a series of operational improvements in a tight gas field comprising 80 predominately marginal wells in a mature South Texas producing area. Tackling this evaluation challenge using a set of statistical tools not commonly applied in the upstream oil and gas industry yielded a definitive assessment of the success of the investments. The use of these statistical software tools eliminated a lot of the uncertainty inherent in traditional production and decline curve analysis techniques in assessing the success of the operational changes that were being employed. One of the things the model identified was the viability of improvement resulting from a reduction in production variation as opposed to looking exclusively for production increases.
The application of these statistical methods for analyzing data, particularly in marginal, mature producing areas will be described. It will also be demonstrated how these methods can be employed to address a number of oil and gas engineering, operations, production and financial issues.
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