In the equation for skin factor during the pressure buildup, P, is measured just before shutting in the well, and plhr is obtained from the straight-line portion (extrapolated if necessary) of the buildup curve one hour after shut-in (see Figure 5-138a). Similarly, the straight-line portion of the drawdown data must be extrapolated to one hour if the data do not fall on the semilog straight-line (see Figure 5-138b).
<strong data-start="200" data-end="221">Prabhu TL</strong> is an author, digital entrepreneur, and creator of high-value educational content across technology, business, and personal development. With years of experience building apps, websites, and digital products used by millions, he focuses on simplifying complex topics into practical, actionable insights. Through his writing, Dilip helps readers make smarter decisions in a fast-changing digital world—without hype or fluff.
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