含油水各向异性孔隙介质中地震波传播方程

油气勘探的重点是寻找油气储层的分布 ,而地下油气的存在必然对地震记录产生影响。传统的地震波理论是建立在纯弹性固体基础之上 ,没有考虑固体中所含的流体 ,因此 ,它难以研究含油水岩石的物理性质 ,如岩石的渗透率和孔隙度、油水粘度。从固、液介质系统能量和本构方程出发 ,推导出固体、油相和水相的动力学方程 ,进而建立起含油水两相流体各向异性孔隙介质的地震波传播方程。该方程包括有岩石和油水的物理参数 ,更适合于油田的勘探和开发。

SEISMIC WAVE PROPAGATION EQUATIONS IN INCLUDING OIL AND WATER ANISOTROPIC POROUS MEDIA

Focal point of oil and gas exploration is looking for distribution of oil and gas reservoir beds. Oil and gas distribution underground affect certainly seismic record. Traditional seismic wave theory was established on the pure elastic solid media and did not consider the fluid in the porous solid, so it is difficult to research the physical property of rocks containing oil and water, for example,the permeability and porosity of rocks, and viscosity of oil and water. The paper deduced the dynamic equation of solid, oil phase and water phase based on energy of solid-fluid system and the constitutive equation, more established seismic wave equations including oil and water orthorhombic anisotropic porous media. The seismic wave equations include the parameters of rock and fluid physical property so that it will be more suitable for prospecting and development of oil fields.