WorldwideNew Methods
Full Title:
New Methods for Production Data Analysis to Identify New Opportunities in Mature Fields: Methodology and Application
By: Dr. Shahab Mohaghegh
Most of the mature fields in the United States have been producing for many years. Production in these fields started at a time when reservoir characterization was not a priority; therefore they lack data that can help in reservoir characterization. On the other hand to re-vitalize these fields in a time that price of hydrocarbon is high, requires certain degree of reservoir characterization in order to identify locations with potentials of economical production. The most common type of data that may be found in many of the mature fields is production data. This is due to the fact that usually production data is recorded as a regulatory obligation or simply because it was needed to perform economic analysis.
Using production data as a source for making decisions have been on the petroleum engineer’s agenda for many years and several methods have been developed for accomplishing this task. There are three major shortcomings related to the efforts that focus on production data analysis. The first one has to do with the fact that due to the nature of production data its analysis is quite subjective. Even when certain techniques show promise in deducing valuable information from production data, the issue of subjectivity remains intact. Furthermore, as the second shortcoming, existing production data analysis techniques usually address individual wells and therefore do not undertake the entire field or the reservoir as a coherent system.
The third short-coming is the lack of a user friendly software product that can perform production data analysis with minimum subjectivity and reasonable repeatability while addressing the entire field (reservoir) instead of autonomous, disjointed wells.
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