1
Lisa A Cantu, Edward F McBride, Marion W Osborne: Formation fracturing process. Conoco, E I Du Pont de Nemours and Company, July 18, 1989: US04848467 (201 worldwide citation)

Hydroxyacetic acid condensation product is used as a fluid loss material in a formation fracturing process in which a fracturing fluid comprising a hydrolyzable aqueous gel is used. The hydroxyacetic acid condensation product degrades at formation conditions to provide hydroxyacetic acid which break ...


2
Lisa A Cantu, Marion W Osborne, Edward F McBride: Well treatment process. Conoco, Richard W Collins, September 18, 1990: US04957165 (194 worldwide citation)

Hydroxyacetic acid condensation product is used as a fluid loss material in a well completion or workover process in which a fluid comprising a hydrolyzable aqueous gel is used. The hydroxyacetic acid condensation product degrades at formation conditions to provide hydroxyacetic acid which breaks th ...