Rotary sidewall sponge coring apparatus

Details Rotary sidewall sponge coring apparatus Rotary sidewall sponge coring apparatus

1994-09-28

1995-08-08

Schoeppel, Roger J.

Boring or penetrating the earth

Processes

Sampling of earth formations

175226, 175236, 175249, E21B 4900

Patent

active

054390656

ABSTRACT:
The invention is an apparatus for rotary drilling of core samples from the wall of a wellbore. The apparatus comprises a coring bit, a motor, a bit box rotatably mounted within a housing adapted to traverse the wellbore, a plunger for extracting the core sample from the bit and discharging the core sample into a storage barrel which has a sponge liner. The sponge liner in the barrel adsorbs liquid hydrocarbons which may be expelled from the porosity in the core sample by gas exsolution.

REFERENCES:
patent: 4354558 (1982-10-01), Jageler et al.
patent: 4466495 (1984-08-01), Jageler
patent: 4479557 (1984-10-01), Park et al.
patent: 4502553 (1985-03-01), Park et al.
patent: 4598777 (1986-07-01), Park et al.
patent: 4716974 (1988-01-01), Radford et al.
patent: 4787983 (1988-11-01), Difoggio et al.
patent: 5310013 (1994-05-01), Kishino et al.
patent: 5360074 (1994-11-01), Collee et al.
Brochure on "DPS Sponge Coring System Squeezes Twice As Much As Oil Saturation Data From Your Budget", Diamant Boart Stratabit (printed in 1988).

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