SUBSURFACE FORMATION CUTTER,申请号WO2014CA50948-传众专利搜索

SUBSURFACE FORMATION CUTTER

申请公布号：WO2015066802(A1)

申请号：WO2014CA50948

申请日期：2014.10.02

申请公布日期：2015.05.14

申请人：

CHUNG, BERNARD C.

发明人：CHUNG, BERNARD C.

分类号：E21B7/08;E21B17/02

主分类号：E21B7/08

摘要：The present invention is a subsurface formation cutter and method for directional cutting into a subterranean formation. The subsurface formation cutter includes a transmission unit, a cutter bit, a bit brace, and a ram unit. The transmission unit has a driver shaft operatively connected to a bottom hole assembly. The cutter bit has a connector member, a cutter body rotatably coupled to the connector member, and a bit shaft connected to the cutter body. The bit shaft is operatively coupled to the driver shaft of the transmission unit. The ram unit has a moveable ram shaft connected to a traveling member. The bit brace is pivotably connected to the connector member and the traveling member. A connection member is attaches the ram unit to the transmission unit, and is configured to receive and guide the traveling member to travel in a direction parallel with a longitudinal axis of the subsurface formation cutter.