06527047 is referenced by 120 patents and cites 8 patents.

An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch (

15

), at least one wire line (

4, 5

) and a device (

2

) for gripping a tubular (

3

), the arrangement being such that, in use, the winch (

15

) can be used to winch said at least one wire (

4, 5

) and said device (

2

) to position a tubular (

3

) below said top drive.

Title
Method and apparatus for connecting tubulars using a top drive
Application Number
9/762698
Publication Number
6527047 (B1)
Application Date
May 10, 2001
Publication Date
March 4, 2003
Inventor
Bernd Georg Pietras
Wedemark
US
Agent
Moser Patterson & Sheridan L
US
Assignee
Weatherford Lamb
TX, US
IPC
E21B 19/06
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