【摘要】 准噶尔盆地侏罗系八道湾组为克拉玛依油田主要含油层系之一,但八区的八道湾组此前尚未开展过系统的层序地层学研究。通过对层序界面特征的详细识别和对八道湾组测井响应特征的深入分析,特别是对煤层测井响应特征的认识,提出了在446井区和530井区原划归上三叠统白碱滩组的一部分地层应归属于八道湾组,而不应归于白碱滩组的新认识。主要依据有:①含有典型煤层;②测井响应特征与八道湾组相似,而与白碱滩组迥异;③该套地层呈楔状体,向西北方向逐渐超覆尖灭。据此对八道湾组的底界进行了重新厘定。更多还原

【Abstract】 Jurassic Badaowan Formation in Junggar Basin is one of the major oil-bearing stratigraphy series of Karamay Oilfield.A systematical study on sequence stratigraphy is not carried out.It is proposed that a part of strata divided into Baijiantan Formation of upper Triassic belong to Badaowan Formation in Well Blocks 446 and 530 by recognizing the features of sequence boundary in detail,analyzing deeply the log responses of Badaowan Formation,especially recognition of the log response of coal layer.The bottom boundary of Badaowan Formation is collated and stipulated again according to those evidences that :①it bears typical coal layer;②its log response characteristics are similar with that of Badaowan Formation,but absolutely different from Baijiantan Formation;③the strata present wedge wet,overlapping and piching out to northwest direction.Based on the study above,the bottom boundary of Badaowan Formation is redetermined.更多还原