松辽盆地泰康隆起东翼杜20-3井区油气微生物勘探

采用油气微生物勘探技术对松辽盆地泰康隆起东翼杜20-3井区进行油气勘探分析。以微生物异常为基础,结合工区内现有的区域地质、钻井和测井等资料,并根据油气微生物异常的分布情况,明确了研究区的油气富集规律,同时完成了工区内石油微生物异常区的圈定。从本工区内的沉积相、反射层构造等深线的展布、以及与邻区的异常对比等方面入手,详尽地分析了工区内的油气远景,给出结论和勘探建议:该工区的油气远景较差,基本上为油异常区;工区内勘探程度较低,需要加强综合研究,确定含油层系,从而为勘探区块评价和探井井位设计提供依据,进一步认识整个研究工区的油气富集规律。

MICROBIAL EXPLORATION OF OIL AND GAS IN TAIKANG UPLIFT OF THE EAST WING DU 20-3 WELL AREA IN SONGLIAO BASIN

The authors used the microbial exploration technology to conduct oil and gas exploration on the east wing Taikang uplift Du 20-3 well area of Songliao Basin. With the microbiological anomaly as the basis, in combination with the existing regional geological, drilling and well logging data, and according to the distribution of oil and gas microbiological anomaly, the authors revealed the oil and gas enrichment regularity in the study area, and completed the delineation of the petroleum microbial anomalous zone. Starting with the sedimentary facies, the structure of the reflection layer depth contour, and the abnormal contrast of the adjacent areas, the authors ana-lyzed the area of oil and gas prospect in detail, reached some conclusions and made some suggestions for exploration：the study area has poor oil and gas reserves and is basically an oil abnormal area;the degree of exploration is low in this area, and the comprehensive re-search should be strengthened so as to determine the oil-bearing series, provide an experimental basis for evaluation of the exploration area and the determination of well locations for drilling employment, and understand the oil and gas enrichment regularity in the whole study area.