Seismic identification of channel sandbodies in the Fuyang oil layer in North Songliao Basin, China

The Fuyang oil-layer in North Songliao Basin is characterized by thin interbedded sands and shales, strong lateral variation, strong reservoir heterogeniety, and so on. The thickness of individual sand layers is generally 3 - 5 m. Identifying the channel sand-bodies of the Fuyang oil layer using seismic techniques is very difficult due to the low seismic resolution. Taking the GTZ area as an example, we discuss the genetic characteristics of the channel sand-bodies and point out the real difficulty in using seismic techniques to predict the channel sand-bodies. Two methods for the identification of channels are presented： frequency spectrum imaging and pre-stack azimuthal anisotropy. Identifying the channel sand-bodies in Fuyu oil-layer using the two seismic methods results in a success rate up to 80% compared with well data.     

荥阳市举行基准地价更新论证会

7月31日上午，荣阳市举行基准地价更新论证会。在听取了荣阳市区及全市乡镇范围内建设用地的级别、基准地价以及此次基准地价更新的依据、标准和必要性等汇报后，与会代表查看调阅了相关资料，观看了各个乡镇土地基准地价图，并提出了不同的意见和建议，专家组一一做了分析、讲解和答复。本次荣阳市土地级别和基准地价更新后，将商业用地分为六级、住宅用地分为五级、工业用地分为四级，其基准地价均有不同程度上升。     

松辽盆地北部扶杨油层河道砂体的地震识别方法研究

应用地震技术预测和识别扶杨油层河道砂体是当前松辽盆地北部的油气勘探中最为急需的技术之一。本文以GTZ地区为例,探讨了扶杨油层河道砂体的成因特点,指出地震的低分辨率,河道砂体的薄互层、横向变化快、储层非均质性强等地质特点,是当前应用地震技术识别扶杨油层河道砂体的困难所在。文中介绍了当前技术条件下河道识别的两种方法:利用频谱成像技术和叠前方位各向异性技术进行河道识别的方法和思路。以扶余油层为目的层说明了应用上述两种方法识别河道砂体的良好效果,并和已知井资料进行对比,符合率可达80%。