Craig D Johnson

Development and First Application of Bistable Expandable Sand Screen

Sand control in an openhole typically results in risky completions, especially in weak or unconsolidated formations. Stand-alone screen completions present the risk of wellbore collapse and screen erosion, while gravel packing involves time-consuming and complicated pumping operations. Although expandable sand screens have recently become available to provide the best of both worlds, fast installation and wellbore support, design constraints limit their application. Wellbore conformance, expansion loads, and connection integrity have been critical issues with these types of screens. Where successful applications have been found, improved production with lowered drawdown has been typical.