Paul K. Hurlburt - Leander TX Daniel T. Plummer - Austin TX
Assignee:
Condea Vista Company - Houston TX
International Classification:
C01F 702
US Classification:
423625
Abstract:
A process for making a modified boehmite alumina comprising reacting at elevated temperatures a boehmite alumina with a compound having the formula: X(SO. sub. 3 M). sub. n wherein X is an organic moiety, M in a monovalent cation, and n is an integer reflecting the number of SO. sub. 3 M groups bonded to said organic moiety to produce a reaction mixture containing modified boehmite alumina and recovering solid, modified boehmite alumina from the reaction mixture.
A base fluid for formulating wellbore fluids. The base fluid comprises a mixture of synthetic aliphatic hydrocarbons derived from a Fischer-Tropsch product stream and contains greater than 96% aliphatic hydrocarbons having a carbon number range of from C6 to C30. The percentage of homologues having a carbon number of C10 or less is less than about 3 wt %.