发明名称 A CORRUGATED SETTLING CUP AND A MULTI-CUP UNIFORM FLUX GAS ANCHOR
摘要 A corrugated settling cup (5) is provided, wherein the cup has a cup body, an opening and a location step (52) are provided at the bottom (55) of the cup body, several location holes (53) are formed at the top of the location step (52), location projections (54) corresponding to the location holes (53) are formed at the bottom (55) of the corrugated settling cup (5), wherein the external profile of the corrugated settling cup body rises along the axial direction in a corrugated shape. A multi-cup uniform flux gas anchor is provided, wherein the gas anchor includes a central pipe (7), several corrugated settling cups (5), several settling cups protection bodies (6) and a well-flushing valve (9), wherein the external profile of the corrugated settling cup body rises along the axial direction in a corrugated shape.
申请公布号 CA2695397(C) 申请公布日期 2013.05.28
申请号 CA20082695397 申请日期 2008.08.22
申请人 DAQING OILFIELD CO. LTD 发明人 WANG, DEMIN;WANG, YAN;WAN, JUN;ZHANG, SHUMIN;ZHU, RONGJIE;LI, LI
分类号 E21B43/38 主分类号 E21B43/38
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