吉林省双阳地区油气地球化学勘探及物化探多参数研究

MULTIPARAMETER STUDY ON THE OIL-GAS GEOCHEMICAL EXPLORATION AND THE GEOPHYSICAL-GEOCHEMICAL PROSPECTING IN SHUANGYANG REGION, JILIN PROVINCE

本文探索了综合物化探方法在吉林省双阳地区寻找油气藏的有效性实验。研究结果表明土壤吸附烃(甲烷、乙烷、丙烷、丁烷)、土壤碳酸盐蚀变(ΔC)等指示的异常,地震油气检测所指示的异常,放射性地球物理勘探能谱及^(218)Po异常,均可在已知油气藏上方获得特定的显示。由此可以建立起综合物化探油气异常模式,应用此异常模式予测了双阳地区的含油气远景区,并随后在此区中的刘3井中获得了高产油气流。本文还应用了模糊综合判别的方法,使多参数综台研究半定量化,得到了比较好的效果。

An effective experiment for searching oil-gas accumulation by using comprehensive method of the geophysical-geochemical prospecting in Shuangyang region, Jilin province is made, The results show that soil absorbs hydrocarbon(mathane, ethano, propane, butane), The anomalies indicated by the altered soil carbonate (Δc) and that obtained by seismic, radioactive geo- physical prospecting energy spectrum and ^(218)Po can be specially reflected over the known oil-gas accumulation, resulting in the establishment of comprehensive anomaly model. By using this model oil-gas bearing prospective province in Shuangyang region can be predicted, a high-capacity oil-gas at the No.3 well in this region has been found. The method of the fuzzy set distinguishing is adopted for the first time, to make multiparameter study semiquantitatize, and a satisfied result has been obtained