博兴洼陷储层非均质性对油气充满度的影响

Influence of reservoir characteristics of sandstone body on fill degree

油气成藏与油藏开发得以实现的基础是存在能量差,流体(烃类流体或油气水)作为能量传递的载体,在地质体中建立动态的能量平衡。油气成藏与油藏开发流动的流体和流动的环境都是相似的,这种动态相似性为成藏动力学定量研究开辟了新的途径,即可以借鉴油藏开发的理论和技术方法研究成藏动力学。在油藏开发过程中,影响油气产量的开发地质因素同样影响成藏时的油气充满度。砂岩体的储集特征受到岩性差异、粒度变化、胶结差异等层内非均质、层间非均质及各向异性等因素的综合作用。当其中某种因素成为影响砂岩储集特征的主要因素时,同样影响油气充满度,并表现出巨大的差异。油气成藏与油藏开发有着相似或相近的影响因素,这也说明在研究油气成藏时借用油藏开发的技术方法是可行的。

Both oil and gas forming and reservoir development are based on the energy difference.The fluid makes the dynamic energy balance in the geology body in the form of conveying energy.The fluid and environment of oil and gas forming and reservoir development are both similar.This similarity has provided a new path to study oil and gas forming dynamics.Many theories and technologies of reservoir development can be applied to study oil and gas forming dynamics.The geologic factors to affect oil and gas production similarly influence on oil and gas filling degree.The reservoir characteristics of sandstone body is affected by many factors such as lithology difference,granularity variety,cement difference,internal heterogeneous,interlayer heterogeneity and anisotropism.When one of these factors is the main factor,it similarly affects fill degree and shows great difference.What there are similarly influence factors for oil and gas forming and reservoir development also illustrates that it is impossible to apply the technology of reservoir development into oil and gas forming.