Method and apparatus for inserting tools in underwater wells
United States Patent 3252529
US Patent References:
Submarine hammer-drill unit
- - 1610372

Well casing aligning guide
- - 2184051

Drilling
- - 2923531

Drilling
- - 2929610

Ship positioning means and method
- - 3010214


Inventors:
William, Fischer
Publication Date:
05/24/1966
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Assignee:
Chevron, Res
Primary Class:
175/7
Other Classes:
192/110S
International Classes:
E21B7/128; E21B7/12
US Patent References:
3012610Drilling
3025916Apparatus for inserting tools into submarine open bore holes
3096999Pipe joint having remote control coupling means
3099316Underwater wellhead apparatus and method
3159218Underwater drilling method