CAJ | 학술논문

针对塔河油田石炭系卡拉沙依组储层含灰质严重造成砂泥岩波阻抗值接近的特点,开展地震沉积学研究,用时频分析的方法在卡拉沙依组CK3和CK4砂组中划分3个最小等时研究单元及其对应的短期等时沉积界面;采用岩石-岩相物理分析确定了最小等时单元对应的地震响应特征,其中厚砂岩为强振幅反射;通过定量地震属性相分析提出用伪熵和扭度属性刻画薄层砂泥岩分布的方法;采用相控属性投影技术进行相控储层预测,并将有利沉积微相平面范围投影到过井的岩性反演剖面中,在三维空间中确定了有利储层展布形态,实现了实践意义上的"相控"理念,证实了地震沉积学在沉积相分析及岩性圈闭预测方面具良好的学科优势.
침대탑하유전석탄계잡랍사의조저층함회질엄중조성사니암파조항치접근적특점,개전지진침적학연구,용시빈분석적방법재잡랍사의조CK3화CK4사조중화분3개최소등시연구단원급기대응적단기등시침적계면;채용암석-암상물리분석학정료최소등시단원대응적지진향응특정,기중후사암위강진폭반사;통과정량지진속성상분석제출용위적화뉴도속성각화박층사니암분포적방법;채용상공속성투영기술진행상공저층예측,병장유리침적미상평면범위투영도과정적암성반연부면중,재삼유공간중학정료유리저층전포형태,실현료실천의의상적"상공"이념,증실료지진침적학재침적상분석급암성권폐예측방면구량호적학과우세.
According to the characteristics of sand impedance close with shales in Karratha reservoir containing carboniferous seriously,the article put forward facies-controlled reservoir prediction using seismic sedimentary. The article described key technology methods of the seismic sedimentary, such as the smallest isochronia-unit built by time-frequency analysis, rock and lithofacies physics phase analysis to determine the seismic response under the smallest isochronia-unit. Research results suggested that the thick sandstone with strong oscillation amplitude reflection. The plane quantitative analysis of pseudo-seismic entropy and twisting properties of the distinction between the effective distribution of sand and shale, may provide information for portraying the distribution of sand and shale accurately and for choosing favorable zones. Sand shape is described by attribute projection technology using inversion data. The research carried out the practical significance of the concept of facies-controlled reservoir prediction,demonstrated good discipline advantages of the seismic sedimentology in the sedimentary micro-facies analysis and forecasting lithologic traps.