Corpus ID: 116050602

Multiple-hole group type nozzle for deep penetration hydraulic windowmaker

  title={Multiple-hole group type nozzle for deep penetration hydraulic windowmaker},
  author={顾瑞龙 and 王科社 and 徐松沅 and 张惠惠 and 武凤伟 and 韩小武 and 袁水 and 王研 and 梁福民},
  • 顾瑞龙, 王科社, +6 authors 梁福民
  • Published 1998
  • Engineering
  • The utility model relates to a nozzle for a deep penetration hydraulic perforator for oil wells. A front-cutoff conical surface with a conical tip angle of 90 DEG is arranged on the periphery of a front end plane, and a plurality of jetting holes which are communicated with an inner cavity are vertically and uniformly distributed on the front-cutoff conical surface. Accordingly, holes of bigger diameters can be punched, and the cutting efficiency can be improved.