| 1. | The effects of meor include as follows : being favorable to oil - gas percolation , changing wettability of rocks , improving hydrocarbon migration , reducing surface tension of emulsified oil , decreasing crude viscosity and improving sweep efficiency , etc
采油微生物具有自身的优势，有利于油气渗流及提高采收率，尤其是微生物能改变岩石润湿性、改善油气运移、乳化原油降低表面张力，微生物及代谢产物还对原油具有降粘作用，对地层水产生有利影响，提高波及系数。 |
