C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/32 (2006.01) C09K 7/06 (1990.01)
Patent
CA 2080484
2080484 9116391 PCTABS00007 The description relates to the use of hydrated castor oil instead of organophilic quaternised clays to control and especially to increase the viscosity spontaneously in oil-based drilling muds for opening geological processes. The object of the invention also includes oil-based drilling muds of this kind which contain hydrated castor oil, together, if desired, with further known N-free viscosity promoters as oil soluble viscosity promoters and are free from oil-dispersible, finely dispersed solids containing quaternised N compounds, especially correspondingly fortified clays.
Herold Claus-Peter
Mueller Heinz
von Tapavicza Stephan
Borden Ladner Gervais Llp
Henkel Kommanditgesellschaft Auf Aktien
Herold Claus-Peter
Mueller Heinz
von Tapavicza Stephan
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