超低渗透储层浊积水道识别及油气地质意义——以鄂尔多斯盆地华庆油田白153开发区长63储层为例  

Turbidite Channel Identification and Hydrocarbon Geologic Significance of Ultra-Low Permeability Reservoir——Taking Chang63 Reservoirs in the BailS3 Development Zone of Hua-Qing oiifleld of Ordos Basin for example

作　　者：杨金龙 廖建波[2] 孙栋 屈亚龙 张建武[2] 

机构地区：[1]中国石油长庆油田分公司超低渗透油藏研究中心 [2]中国石油勘探开发研究院西北分院

出　　处：《低渗透油气田》2011年第3期1-5,共5页

摘　　要：利用岩心和测井资料，在小层精细对比与划分的基础上．对华庆地区长63超低渗透储层的沉积微相进行了研究，确定沉积相类型为湖底滑塌浊积扇，包括浊积水道、水道侧翼、外缘席状砂及半深湖泥4种沉积微相，其中浊积水道是该区的主要储层．主力沉积期次浊积水道平面发育规模及纵向叠合程度控制了该区超低渗透储层的油气富集和产能建设潜力。该区浊积水道的主要发育期为长6（3，^1-2）和长6（3，^1-3），集中在中部偏北及中部偏西的地区发育，也是开发效果较好的层位及区域，因此，浊积水道将是鄂尔多斯盆地湖盆区今后油气勘探开发的重点。By using core and log data, based on the fine division and contrast of small layers, the sedimentary microfacies of ultra-low permeability Chang63 reservoir in Hua-Qing region were studied in this paper. The type of the sedimentary microfacies is determined to be turbidite fans from lake bed slump, including four kinds of sedimentary facies of turbidite channel, the channel flank, sheet sand-body on the outer edge, and semi-deep lake mud, of which the turbidite channel is the main reservoir area. During the main deposition period, the size of planar development of the sub-turbidite channel and vertical superimposing degree control oil and gas accumulation and productivity capacity construction potential of the ultralow permeability reservoirs in the area. The main development period of the turbidite channel in this area is Chang63 I-2 and Chang631-3, with development concentrated in the central north and central west areas, and also the better development layers and regions. Therefore, the turbidite channel will be the focus of future oil and gas exploration and development in the lake-basin district of Ordos basin.

关 键 词：浊积水道 沉积微相 长63储层 超低渗透油藏 华庆地区 

分 类 号：TE3[石油与天然气工程—油气田开发工程]