流体活动性属性技术在KG油田储集层描述中的应用  

Application of the fluid mobility attribute technique in the reservoir characterization of KG Oilfield,Algeria

作　　者：代双和[1] 陈志刚 于京波 谢结来 刘雅琴 

机构地区：[1]北京大学地球与空间科学学院 [2]中国石油东方地球物理勘探公司研究院地质研究中心

出　　处：《石油勘探与开发》2010年第5期573-578,共6页Petroleum Exploration and Development

摘　　要：阿尔及利亚Oued Mya盆地438b区块北部KG油田主要储集层为下三叠统曲流河沉积,砂体厚度薄、横向非均质性强、地震资料分辨率低、常规地震属性储集层预测效果差,采用常规储集层预测方法预测结果与实钻误差较大。为了精细描述KG油田T1砂体分布,应用流体活动性属性技术对T1储集层的非均质性及含油气性进行了预测。研究表明,流体活动性属性剖面上岩性组合与地震波组对应关系清楚。利用流体活动性属性技术较好地识别了KG油田有利储集层的分布,有效指导了水平井钻井轨迹调整,预测的储集层产能与实测产能基本一致,说明流体活动性属性技术可用于KG油田及同类型油田的储集层描述。Lower Triassic sandstones deposited in meandering river channels are the main reservoirs of the KG（Kef El Argoub） Oilfield which is located at the northern Block 438b,Oued Mya Basin,Algeria.The sand bodies are thin and strong in lateral heterogeneity.It is difficult to be identified by simply applying seismic data and conventional seismic attributes,which will lead to a large difference between the prediction result and drilling result.A fluid mobility attribute technique is developed and applied in order to precisely characterize and evaluate the distribution of T1 sand bodies.Study shows that lithology assemblage showed in the fluid mobility attribute section is clearly corresponding to seismic wave group.Fluid mobility attributes help to identify favorable reservoirs and effectively adjust the drilling track of horizontal well.The predicting productivity is equivalent to actual productivity.Fluid mobility attributes could be applied to reservoir characterization of oil fields similar to the KG Oilfield.

关 键 词：KG油田 非均质性 流体活动性属性 优质储集层 储集层产能 

分 类 号：TE122.1[石油与天然气工程—油气勘探]