STUDY ON THE DISTRIBUTION OF THE MICRO-FRACTURES BY ANN——TAKING THE CA OILFIELD IN GAOYOU SAGIN THE NORTH JIANGSU BASIN AS AN EXAMPLE
-
摘要: 苏北盆地高邮凹陷CA油田微裂缝比较发育,但由于微裂缝发育规模、开度和延伸长度均较小而不易识别,研究方法和手段受到很大限制,研究起来难度较大.利用测井的声波曲线、微梯度曲线、微电位曲线、6m电阻曲线和冲洗带电阻率曲线,采用神经网络的方法,建立该区裂缝分布的三维模型,从而实现对裂缝参数的预测.通过动态资料分析,证实了运用神经网络法获得的裂缝预测结果是较为可靠的.Abstract: There are many micro-fractures in the CA Oilfield in Gaoyou Sag,the North Jiangsu Basin.The aperture and extension length of these micro-fractures are too small to identify easily.The methods and means being used to study are limited.Based on the acoustic logging curve,the microinverse,the micronormal,the 6 m electric resistance curve and the resistivity curve in flushing zone,the 3D mathematical model about the distribution of the micro-fractures in this area can be established by using the method of artificial neural network.In this paper,the micro-fracture parameters were predicted by this way.The predict result was verified by the dynamic data analysis.It is reliable to predict the distribution of micro-fractures by using the mathod of artificial neural network.
-
[1] 余建平.天然裂缝性储层的地质特征[J].西北油气勘探,1999,11(2):47～51 [2] 张盛宗,王为民.低渗透油藏开发与裂缝孔隙度[J].大庆石油地质与开发,1999,18(2):23～26 [3] 李道品,逻迪强,刘雨芬.低渗透砂岩油田开发[M].北京:石油工业出版社,1997.1～354 [4] 楼一珊.地应力在油气田开发中的应用[J].石油钻探技术,1997,25(3):58～59 [5] 马寅生.地应力在油气地质研究中的应用、意义和研究现状[J].地质力学学报,1997,3(2):41～46 [6] 曾联波,田崇鲁.伸展构造区低渗透储层构造裂缝的分布特征[J].石油实验地质,1997,19(4):344～347 [7] 王端平,张敬轩.胜利油区埕北30潜山储集性裂缝预测方法[J].石油实验地质,2000,22(3):250～255 [8] 邢正岩.低渗透砂岩油藏储层非均质地质模型研究[J].石油实验地质,2003,25(5):505～507,512 -
计量
- 文章访问数: 845
- HTML全文浏览量: 132
- PDF下载量: 284
- 被引次数: 0
下载:
苏公网安备32021102000780号