×

Well casing guide string and repair method

  • US 5,370,183 A
  • Filed: 08/11/1993
  • Issued: 12/06/1994
  • Est. Priority Date: 08/11/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. An assembly for repairing a casing section disposed in a wellbore comprising:

  • an elongated tubular guide string adapted to be inserted in said casing;

    a casing milling tool connected to a work string for rotation to machine the upper end of said casing; and

    a swivel interconnecting said guide string and said work string including said milling tool whereby said guide string is connected to said milling tool and said work string but is rotationally independent of the rotation of said work string and said milling tool.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×