物探解释新技术在隐蔽油气藏勘探中的应用

APPLICATION OF NEW TECHNIQUE OF GEOPHYSICAL INTERPRETATION IN SUBTLE OIL/GAS RESERVOIR EXPLORATION

主要介绍采用频谱分解技术、全三维可视化技术和全三维体解释技术对隐蔽油气藏进行研究的思路和方法,并将这三种新技术应用于准噶尔盆地中的多个三维工区,有效地识别出了河道、岩性圈闭的边界、断层及地层剥蚀线。通过该几项技术的成功应用,发现了SN31井大型岩性油气藏,为准噶尔盆地隐蔽油气藏勘探拓宽了新思路和新方法。实际应用所取得好效果表明:在隐蔽油气藏勘探中,需要选用合适的解释技术和方法,才能取得令人满意的良好结果。

This paper mainly introduces that using the spectra decomposition technique , full 3-D visualization and full 3-D data volume interpretation technique studies idea and method of subtle oil/gas reservoir and uses these three techniques in many 3D seismic surveys in Junngar Basin to identify channels effectively, the boundary of lithologic traps , faults and stratigraphic denudation. A large scale of lithologic oil/gas reservoir in SN31 well was discovered after successful application of these three techniques, which widened a new idea and method for exploration of subtle oil/gas reservoir in Junggar Basin . Good results which have been yielded in its practical application indicate: it is essential that appropriate interpretation techniques and methods should be selected during the exploration of subtle oil/gas reservoir in order to get good results..