Title:
Casing support
United States Patent 3017934
US Patent References:
Ship-raising apparatus
- - 1332384

Submarine detection float
- - 1636447

Rotary drilling apparatus
- - 1660714

Float drill pipe
- - 1712803

Drill pipe
- - 1746132


Inventors:
Rhodes, Aaron D.
Hal, Stratton
Publication Date:
01/23/1962
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Assignee:
SHELL OIL CO
CONTINENTAL OIL CO
SUPERIOR OIL CO
UNION OIL CO
Primary Class:
166/350
Other Classes:
175/7, 175/320, 114/267, 175/220, 174/70R
International Classes:
E21B15/02; E21B17/01; E21B43/01; E21B15/00; E21B17/00; E21B43/00
US Patent References:
1764488Floating supporter for drill pipe
1957622Salvaging apparatus
2019059Marine exploration apparatus
2171672Underwater drilling
2187871Underwater drilling
2383840Underwater fuel storage system
2399656Float
2419053Buoyant electric cable
2476309Apparatus for subaqueous geologic prospecting
2512783Marine drilling
2606003Off-shore drilling
2610028Well drilling pipe
2783027Method and apparatus for submerged well drilling