Daqing Oilfield Company Limited

Jun Wan

Demin Wang

Yan Wang

Rongjie Zhu

Li Li

Shumin Zhang

A corrugated settling cup () is provided, wherein the cup has a cup body, an opening and a location step () are provided at the bottom () of the cup body, several location holes () are formed at the top of the location step (), location projections () corresponding to the location holes () are formed at the bottom () of the corrugated settling cup (), 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 (), several corrugated settling cups (), several settling cups protection bodies (6) and a well-flushing valve (), wherein the external profile of the corrugated settling cup body rises along the axial direction in a corrugated shape.

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Heilongjiang, China

Jun Wan