Method and apparatus for friction reduction in a downhole tool

Details Method and apparatus for friction reduction in a downhole tool Method and apparatus for friction reduction in a downhole tool

2005-06-14

2008-10-14

Thompson, Kenneth (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S387000, C166S138000, C166S216000, C166S242100, C277S339000

Reexamination Certificate

active

07434627

ABSTRACT:
A system for facilitating the insertion of a tool into a wellbore, especially a non-vertical wellbore. In one embodiment a tool is fixable in a wellbore and includes centralizing, friction-reducing members that serve to keep the body of the tool off the walls of the wellbore. In another embodiment the tool includes a wiper ring that partially fills an annular area formed between the centered tool and the wellbore walls. The surface of the ring facing the upper end of the wellbore provides fluid resisting piston surface and permits the centered tool to be pumped down the wellbore more effectively.

REFERENCES:
patent: 1436274 (1922-11-01), Mack
patent: 1690721 (1928-11-01), Dillon
patent: 1809080 (1931-06-01), Sweet et al.
patent: 1949498 (1934-03-01), Stone et al.
patent: 2569457 (1951-10-01), Dale et al.
patent: 3403731 (1968-10-01), Arutunoff
patent: 3667543 (1972-06-01), Dean
patent: 3905227 (1975-09-01), Kinley
patent: 4424861 (1984-01-01), Carter et al.
patent: 4941511 (1990-07-01), Johansen et al.
patent: 5947213 (1999-09-01), Angle et al.
patent: 6478086 (2002-11-01), Hansen
patent: 6712153 (2004-03-01), Turley et al.
patent: 1263809 (1986-10-01), None
patent: 1543046 (1990-01-01), None
patent: WO 03/067016 (2003-08-01), None
UK Examination and Search Report, Application No. 0611751.9, dated Oct. 10, 2006.

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