“多元控储”储集层评价模型在准中地区的应用  

Application of Multifactor-Controlling Reservoir Evaluation Model to Central Junggar Basin

作　　者：林会喜[1] 许涛[1] 乔玉雷[1] 朱允辉[2] 沈扬[1] 

机构地区：[1]中国石化胜利油田有限责任公司西部新区研究中心,山东东营257000 [2]中国石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《新疆石油地质》2012年第2期211-213,共3页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2011ZX05002-002)

摘　　要：针对准噶尔盆地中部1、3区块低孔低渗储集层的特征,分析储集层含不同流体情况下的物性特征,确定孔隙度大于9%且渗透率大于2.5 mD的储集层为该区有利储集层。根据孔隙度随深度变化关系,将储集层按埋深划分为可压实带与不可压实带,并分别遴选有利储集层的主控因素,最终确定可压实带有利储集层主要受沉积相带与埋深的影响,不可压实带储集层主要受沉积相带、地层异常压力和不整合面的影响,并建立可压实带"相控+深控"的二元控储储集层评价模型与不可压实带"相控+压控+不整合"的三元控储储集层评价模型,并分别对有利储集层发育区进行预测,结果为可压实带(准中1区块三工河组)Ⅰ类储集层面积约560 km2,不可压实带(准中3区块西山窑组)Ⅰ类储集层面积约70 km2.In view of the characteristics of the low porosity and low permeability reservoirs in Block-1 and Block-3 in central Junggar basin,this paper analyzes the physical property of the reservoir under the different fluid-containing conditions and defines the reservoir with porosity higher than 9% and permeability higher than 2.5 mD as the low limit of favorite reservoir.According to the variation of property with buried depth,the reservoir could be divided into compactible zone and uncompactible zone.By choosing the main controlling factors of the favorable reservoir,it can be confirmed that the compactible-zone favorite reservoir is mainly controlled by the sedimentary facies and the buried depth,whereas the uncompactible-zone favorite reservoir mainly controlled by the sedimentary facies,strata abnormal pressure and unconformity.Moreover,the two-factor-controlling favorite reservoir evaluating model for facies control and depth control along with the three-factor-controlling favorite reservoir evaluating model for facies control,pressure control and unconformity control are developed.On the basis of the models,the distributing areas of the favorite reservoirs are predicted.

关 键 词：准噶尔盆地 有利储集层评价 多元控储 可压实带 不可压实带 

分 类 号：TE112.24[石油与天然气工程—油气勘探]