垦71地区转换波油气检测技术研究

Detection techniques for oil and gas by converted wave data in Ken 71 block,Shengli Oilfield

利用常规纵波地震检测油气多解性较大,而转换波地震资料中随方位角变化的横波分裂现象与地层孔隙压力变化密切相关。对垦71地区转换横波分裂产生的时移、振幅特性及时差谱与油水关系的分析表明,利用多波多分量地震资料能提高油气藏预测的可靠性。

The result is many solutions if using the conventional P-wave of seismic data to detect gas and oil, and the transverse wave splitting along with the azimuth changing in converted the P-wave is in close relationship with the changing of pore pressure of formation. The result shows that the precision and reliability of prediction for oil and gas are improved by using converted wave seismic data after the relationships between the time shift, amplitude properties, moveout spectrum, produced from the transverse wave splitting in Ken71 block, and the oil and the water are analyzed.