Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Patent
1991-08-29
1994-12-27
Geist, Gary
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
507901, C09K 700
Patent
active
053766296
ABSTRACT:
An oil based drilling mud comprises (a) a base oil, (b) about 1 to about 170 parts by weight of an aqueous phase per 100 parts by weight of the oil, (c) about 0.25-40 g/l of at least one viscosifier, and (d) a hydrophobic weighting agent in amount sufficient to achieve a required mud density.
The hydrophobic weighting agent is preferably barite. The drilling muds do not contain emulsifiers or oil wetting agents and are particularly advantageous in their reduction in oil retention on cuttings and smaller reduction in permeability of oil bearing formations.
REFERENCES:
patent: 2055666 (1936-09-01), Moore et al.
patent: 2858270 (1958-10-01), Harrison
patent: 2900337 (1959-08-01), Earley et al.
patent: 3227579 (1966-01-01), Bluestein
patent: 4183814 (1980-01-01), Ramachandran
patent: 4312765 (1982-01-01), Block
patent: 4344992 (1982-08-01), Ramachandran
patent: 4434210 (1984-02-01), Nakajima et al.
patent: 4451537 (1984-05-01), Kennedy, Sr. et al.
patent: 4894093 (1990-01-01), Aderhold et al.
patent: 4985166 (1991-01-01), Leising et al.
Kirk-Othmer Encyclopedia of Chemical Technology, Second Ed. vol. 3, pp. 91-95.
British Petroleum Company p.l.c.
Geist Gary
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