发明名称 SCREEN ASSEMBLY AND METHODS OF USE
摘要 A screen assembly. The screen assembly may include a base pipe having an axial bore formed therethrough. An axial rod may be positioned radially-outward from the base pipe. A screen may be positioned radially-outward from the axial rod. A housing may be positioned radially-outward from the base pipe and axially adjacent to the axial rod, the screen, or both, and a first annulus may be formed between the housing and the base pipe. A first opening may be formed through the base pipe and radially-inward from the housing. A second opening may be formed through the base pipe and radially-inward from the housing, and the second opening may be axially offset from the first opening. A valve may be disposed within the first annulus and positioned axially between the first and second openings.
申请公布号 SG10201602977V(A) 申请公布日期 2016.05.30
申请号 SG10201602977V 申请日期 2012.10.01
申请人 PRAD RESEARCH AND DEVELOPMENT LIMITED 发明人 RIISEM, EDVIN EIMSTAD;MOEN, TERJE;WASSOUF, PHILIP;NESLAND, KNUT HARALD
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