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Jet device for use in wells

  • US 4,197,910 A
  • Filed: 03/31/1978
  • Issued: 04/15/1980
  • Est. Priority Date: 03/31/1978
  • Status: Expired due to Term
First Claim
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1. Apparatus for use in cleaning wells comprising an elongated member adapted to be run into a well to a location where cleaning is desired, a stationary member connected to said elongated member, a movable member slidably connected to said stationary member for movement perpendicular to centerline of said elongated member in response to liquid pressure applied between said movable member and said stationary member, a jet body having a central jet-forming opening for forming a jet of liquid connected to said movable member, passageway means in said movable member forming liquid communication to said jet-forming opening and to a location between said movable member and said stationary member, a liquid inlet port providing liquid communication into said passageway means from outside said movable member and said stationary member, and at least one wheel member rotatably mounted on said movable member, said wheel member having an axis of rotation parallel to the axis of elongation of said elongated member and perpendicular to said stationary member and having sufficient diameter to extend beyond said movable member and said jet body so as to be engageable against a well liner and to provide jet stand-off therefrom.

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