摘要
准噶尔盆地车排子地区排2井在新近系沙湾组获得高产工业油流,排2井油藏在地震剖面上具有油亮点特征。利用正演检测确定了油亮点的地震反射特征,并通过分析影响油层及其围岩波阻抗变化的因素,明确了油亮点的形成机理。利用地震振幅属性描述技术、分频检测技术和叠前AVO属性技术对油亮点进行识别,并结合勘探实践总结了3种常见的假亮点。
High-yielding commercial oil flow was acquired from Well Pai-2 in the Neogene Shawan formation in Chepaizi area of Junggar basin. In seismic profile, since Well Pal-2 oil reservoir has bright spot characteristic, it is called ＂oil bright spot＂. In this paper, the seismic reflection characteristic of such an ＂oil bright spot＂ was confirmed by means of forward modeling, and its formation mechanism was defined by analyzing the influence factors of wave impedance changes of the reservoir and itssurrounding rocks＇. And then the oil bright spots were identified by using seismic amplitude attribute description, frequency decomposition and prestack AV0 techniques. Three common bright spot pitfalls were also summed up by integrated with the exploration practice for the purpose of improving the success ratio of petroleum exploration in the future.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2012年第5期560-563,共4页
Xinjiang Petroleum Geology
关键词
准噶尔盆地
车排子凸起
油亮点
振幅
波阻抗
识别
Junggar basin
Chepaizi arch
oil bright spot
amplitude
wave impedance
identification
