Isoelectric drilling method

Details Isoelectric drilling method Isoelectric drilling method

1987-01-15

1988-08-23

Massie, IV, Jerome

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Indicating, testing or measuring a condition of the formation

175 64, 175 66, 175206, E21B 700, E21B 2106

Patent

active

047654155

ABSTRACT:
The enchancement of rock drilling by neutralizing the rock surface charge with respect to the drilling fluid. The isoelectric condition is obtained by nullifying the zeta potential of the rock surface by chemical additives such as surfactants or any material. Drilling enchancement is maintained as long as the rock zeta potential registers a zero reading. An apparatus and method is disclosed herein to achieve and maintain this isoelectric condition and provide for the maximal drilling rate and drill bit life.

REFERENCES:
patent: 2219312 (1940-10-01), Hayward et al.
patent: 2283206 (1942-05-01), Hayward
patent: 3307625 (1967-03-01), Johnson et al.
patent: 4342222 (1982-08-01), Alekhin et al.
patent: 4385666 (1983-05-01), Mamadzhanov et al.
patent: 4410052 (1983-10-01), Mamadzhanov et al.
Hackh's Chemical Dictionary, Fourth Edition, McGraw Hill Book Co., New York 1969), p. 361.
Parks, "The Isoelectric Points of Solid Oxides, Solid Hydroxides, and Aqueous Hydroxo Complex Systems", Chemical Reviews, 65, 177 (1965).
Hiemenz, "Principles of Colloid and Surface Chemistry", Marcel Dekker, Inc., New York (1977), pp. 353, 381 and 483.

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