''Example'': Assume a formation at [[depth::10,000 ft]] has a known hydrostatic pressure of 6292 psi. The mud weight needed to drill this formation “balanced” (hydrostatic pressure equal to formation pressure) is calculated as follows:
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'''''Example''''': Assume a formation at [[depth::10,000 ft]] has a known hydrostatic pressure of 6292 psi. The mud weight needed to drill this formation “balanced” (hydrostatic pressure equal to formation pressure) is calculated as follows: