摘要
从描述储集层基本特征、分析储集层性质的主控因素、建立储集层成因模式和评价、预测储集层性质这 4个层次 ,研究准噶尔盆地重点勘探目标区的侏罗系储集层。系统总结侏罗系储集层岩石学特征 ,认为成岩压实作用强弱是控制储集层性质的关键因素 ;指出相对优质储集层均为剩余原生粒间孔隙型储集层 ,溶蚀作用对渗透率贡献小 ;非煤系储集层的孔隙保存条件明显比煤系储集层好 ,这是三工河组、头屯河组和吐谷鲁群的物性普遍优于八道湾组和西山窑组的原因。在确定储集层性质的控制因素和控制机理基础上 ,建立了煤系和非煤系两大类储集层的成因 演化模型。在上述研究的基础上 ,分地区、分层位评价了储集层 ,并预测了不同渗透率储集层的深度界线及相对优质储集层的平面分布。图 6参
The analysis of Jurassic reservoirs in Junggar basin is based on four sequences, which include the basic feature description, the ana lysis on key factors controlling the reservoir properties, establishing genetic model and evaluating and forecasting the reservoir properties. On the basis of summing up the reservoir lithology systematically to points out the stage of diagenesis and compaction are the key issues. In the paper, it is also pointed out the comparatively good reservoir is the reservoir with residual primary intergranular pores, and solution contributes a little to permeability. The presenation conditions of pores in non coal measures are much better than that in coal measures. This is the reason why the sandstone properties of Sangonghe Formation, Toutunhe Formation and Tugulu Group are much better than that of Badaowan Formation and Xishanyao Formation. Based on the above studies, the genetic evolution models on the two type reservoirs were built up. By these models reservoir evaluation and forecasting were done by area and layer, and the depth limit of different reservoirs with different permeability as well as the planar spreading of the comparatively good reservoirs were pointed out.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2002年第1期52-55,60,共5页
Petroleum Exploration and Development
关键词
准噶尔盆地
侏罗系
岩石学特征
成岩压实作用
煤系
非煤系
储集层性质
成因-演化模式
评价
油气地质
Junggar basin
Jurassic
petrological characteristic
diagenetic compaction
coal measures
non coal measures
reservoir characteristic
origion evolution model
evaluation
