Offshore well drilling, completion and production

Details Offshore well drilling, completion and production Offshore well drilling, completion and production

1975-11-20

1976-11-16

Purser, Ernest R.

Wells

With below and above ground modification

Eduction pump or plunger in well

61 86, E21B 712

Patent

active

039918246

ABSTRACT:
A method and apparatus useful in the drilling, completion and production of offshore wells such as oil and gas wells wherein the surface layer of the floor of the body of water in which the well is to be located is a soft flowable material. A well conductor pipe means is employed to extend essentially through the soft flowable floor layer. The conductor means carries means for varying the buoyancy of the well conductor so that the well conductor can be floated in the soft, flowable floor layer and well operations carried on through the interior of the well conductor, the well conductor preventing the soft flowable floor layer from flowing into the wellbore.

REFERENCES:
patent: 2512783 (1950-06-01), Tucker
patent: 2909901 (1959-10-01), Suderow
patent: 2938353 (1960-05-01), Vorenkamp
patent: 3196958 (1965-07-01), Travers et al.
patent: 3202217 (1965-08-01), Watts et al.
patent: 3221506 (1965-12-01), Stratton et al.
patent: 3605414 (1971-09-01), Westmorland, Jr.
patent: 3782460 (1974-01-01), Skinner
patent: 3885623 (1975-05-01), Watkins et al.

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