【摘要】 受地震资料和数学方法的限制,常规地震储层反演技术在实际应用中有诸多不足,因此提出了一套综合运用地震反演和地质建模技术的储层预测方法。首先采用稀疏脉冲反演计算相对波阻抗模型,进而用波阻抗反演体约束进行自然伽马建模以提高储层分辨能力,最后在自然伽马模型约束下建立高精度的油藏模型。实际应用结果表明,该方法在保持地震反演横向分辨能力的前提下,提高了其对储层的纵向分辨能力,压制了地震反演的多解性,最终获得的油藏模型为研究成藏规律和油藏特征提供了直接和可靠的基础。更多还原

【Abstract】 Limited by seismic data and mathematical methods,many deficiencies were founded in the application of conventional seismic reservoir inversion.Therefore,a reservoir prediction method was proposed by combining seismic inversion technology and geological simulation.Firstly,wave impedance model was calculated by sparse spike inversion.Secondly,the resolution of reservoir was improved by applying natural gamma modeling under constraint of wave impedance model.Finally,the high accurate oil reservoir model was established with the constraint of natural gamma model.Practical application shows that this method improves the vertical resolution of reservoir and suppressed multiple solution of seismic inversion under premise of keeping horizontal resolution of seismic inversion.The final oil reservoir model provides direct and reliable basis for studying the rules of oil reservoir formation and reservoir characteristics.更多还原