Method and apparatus for the working of underwater deposits

Details Method and apparatus for the working of underwater deposits Method and apparatus for the working of underwater deposits

1978-12-18

1981-02-10

Leppink, James A.

Boring or penetrating the earth

Boring a submerged formation

Boring from nonbuoyant support

166362, 405204, E21B 7136

Patent

active

042496187

ABSTRACT:
A method of working an underwater deposit comprises the following stages:

REFERENCES:
patent: 3001595 (1961-09-01), Lucas
patent: 3307624 (1967-03-01), Lubinski
patent: 3362170 (1968-01-01), Manning
patent: 3575005 (1967-06-01), Sumner
patent: 3657895 (1972-04-01), Phelps
patent: 3906735 (1975-09-01), Mo
patent: 3965688 (1976-06-01), Jensen
patent: 4002038 (1977-01-01), Phares et al.

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