CAST FLAPPER WITH HOT ISOSTATIC PRESSING TREATMENT
摘要
Components of a subsurface safety valve are cast instead of machined for dramatic cost savings. In particular, the flapper is cast from a 718 nickel alloy and treated with the HIP process to increase strength and corrosion resistance while reducing porosity. Other downhole valve components are contemplated to be produced by the same technique and the materials can also be varied. Depending on the specific alloys, the resulting HIP components are either superior in performance (e.g. strength, corrosion resistance) or considerably cheaper to manufacture than their wrought counterparts.
申请公布号
WO2006043999(A2)
申请公布日期
2006.04.27
申请号
WO2005US22751
申请日期
2005.06.24
申请人
BAKER HUGHES INCORPORATED;STATTAN, SCOTT;MYERLEY, THOMAS;ADAMS, JEFFREY;BAILEY, WILLIAM;WILFAHRT, BRIAN
发明人
STATTAN, SCOTT;MYERLEY, THOMAS;ADAMS, JEFFREY;BAILEY, WILLIAM;WILFAHRT, BRIAN