Well Construction - gekengineering.com

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well Construction Basics How Wells are Designed & Constructed Minimum Expectations and Best Practices Assessing Completion Reliability and Risk Key Performance Indicators Tubular Design and Downhole Equipment Casing is run to: prevent fill (formation fragments) from entering the wellbore protect fresh water zones from other fluids isolate zones - prevent or channel flow make drilling possible: mud weight has to stay in the window between a minimum that will control the pore pressure (and formation heaving) and a maximum that will not fracture the formation. Casing is also sometimes used where it is not needed. Tubular String- 8 Design Factors Tension tube must stand its own weight in the running environment.

Well Construction • Basics – How Wells are Designed & Constructed • Minimum Expectations and Best Practices • Assessing Completion Reliability and Risk

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