| abstract |
PCT No. PCT/GB94/00922 Sec. 371 Date Feb. 28, 1996 Sec. 102(e) Date Feb. 28, 1996 PCT Filed Apr. 29, 1994 PCT Pub. No. WO94/25731 PCT Pub. Date Nov. 10, 1994A method of acidising an underground reservoir comprises a) injecting into the reservoir (i) a substrate for an enzyme, which substrate is capable of being converted into an organic acid by the enzyme, and (ii) the enzyme; and b) allowing the enzyme to catalyse the conversion of the substrate into the acid. |