Mature Fields

Mature Fields and Common Sense Engineering: Where has it gone?

In 1977, Texas Instruments unveiled the TI-55 programmable calculator. Those were the days—simple calculations to simple problems. In 2013, software programs abound doing everything from inflow calculations to desktop black oil simulations. Technology has evolved but did we leave something behind in the process? Continually, I am approached by clients with questions about mature fields. Some questions are answered with simple answers but...

A New Approach to Facing Rod Pump Challenges

Worldwide, there are approximately 2,000,000 oil wells and 37.5 percent of these use rod pumps as the artificial lift method. Rod pumps face many operational challenges such as, mechanical wear, corrosion, pump failures, and inefficient pumping.

Before Abandoning Your Well, Why Not Consider a Re-Frac?

With the average worldwide recovery factor for oil being 35%, getting the most out of mature wells before abandonment is critical. When a well’s productivity declines (i.e. the flowrate decreases with drawdown pressure remaining constant), there is a tendency to want to immediately plug and abandon it. Instead, the first question should be, “Is there anything we can do to enhance the well’s...

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