微生物油气勘探技术的试验研究

EXPERIMENTAL STUDY OF MICROBIOLOGICAL OIL AND GAS EXPLORATION TECHNIQUES

微生物油气勘查是通过检测近地表土壤中噬烃菌的数量变化 ,预测地下油气分布的一种技术方法。选择三种微生物指标 :甲烷氧化菌、厌氧纤维素分解菌和硫酸盐还原菌进行试验研究 ,有效地抑制了地表生物化学作用的干扰 ,使微生物异常能够较客观反映地下深部油气微渗漏情况 ,微生物异常预测地下油气的分布 。

Microbilogical oil and gas exploration is a technique of predicting subsurface hydrocarbon distribution by means of detecting the change in amout of hydrocarbon-biting bacteria in near-surface soil.Three kinds of microbe,i.e.methane-oxidizing bacteria,anaerobic cellulose-decomposing bacteria and sulfate-reducing bacteria,were selected for experimental study,so the disturbance of surface biochemical effect was effectively inhibited,thus causing the microbiological anomaly to be able to reflect objectively the deep-seated hydrocarbon micro-leakage,It is pointed out that the result of predicting subsurface hydrocarbon distribution by use of the microbiological anomalies is obvious.