【摘要】 泥灰岩裂缝储层由于其各向异性、非均质性的特点,仅靠单一方法很难预测其裂缝发育。文中根据构造应力场理论、地震波频率衰减及裂缝检测理论,运用拟声波反演、构造应力场数字模拟分析、岩石物理模型正演模拟、裂缝各向异性属性分析及衰减属性分析等方法,充分利用现有的地质、钻井、测井资料和叠前、叠后地震数据,对束鹿凹陷泥灰岩裂缝储层开展联合预测,搞清了泥灰岩裂缝发育与地层岩性、应力分布以及构造发育之间的关系,明确了裂缝的走向、密度及有利发育部位,预测了有利储层的分布范围。实际资料应用表明,用该套方法识别构造裂缝方向和密度是有效和可靠的,可以检测出有利的裂缝发育带,为井位部署提供依据。更多还原

【Abstract】 Due to the anisotropy and heterogeneity of the marl fractured reservoir,it is difficult to predict the fracture accurately with conventional methods.Based on the theories of tectonic stress field,seismic wave frequency attenuation and fracture detection,the pseudo-acoustic inversion,digital simulation analysis of tectonic stress field,forward modeling of rock physical model and anisotropy and attenuation attributes analysis combining with the available data of geology,drilling,well logging and the prestack and poststack seismic data are applied to analyze the marl fractured reservoir in Shulu Sag.The relations among the marl fracture development and stratigraphic lithologies,stress distribution and tectonic development are made clear,and the distribution range of the favorable reservoir was finally predicted.The application result of the real data proves the effectiveness and reliability of this method in the reservoir prediction.更多还原