整体波场延拓法基准面校正

提出了一种新的近地表问题解决方法——整体波场延拓法基准面校正(WEDD)。借助地震理论中的互换原理和观测面沉降概念，在基准面校正过程中将炮点和检波点的处理统一起来，并利用炮点-全偏移距域双平方根算子实现波场的单域整体延拓，最后提取目标深度的波场值完成参考面的重新定义。模型试算结果表明了WEDD方法的有效性。

A Chaos Theory Analysis of Complexity of Global Oil Price Fluctuation

Aiming at Donghe sandstone oil reservoir with significantly titled oil-water contact in the Hadson Oilfield,Tarim Basin,an investigation into the origin of titled oil-water contact is conducted,which excludes the possibility that hydropower and capillary pressure resulted in the tilted contact.Structural evolution analysis and physical modeling show that the inclination of oilwater contact in sandstone oil reservoir results from tectonic inversion by neotectonic movement.The oil reservoir has been undergoing adjustment with evidently unsteady hydrocarbon accumulation,so a hint about theoretical presumption of unsteady hydrocarbon accumulation is given,in which the process from hydrocarbon generation and accumulation to hydrocarbon depletion is regarded as a continuous dynamic process and may be divided into pre-reservoir stage,reservoir stage and post-reservoir stage with different hydrocarbon accumulation style in different stages.