| 准噶尔盆地东北缘航空高光谱油气微渗漏探测及地质验证 |
| |
| 引用本文： | 崔鑫,赵英俊,田丰,杨燕杰.准噶尔盆地东北缘航空高光谱油气微渗漏探测及地质验证[J].地质学报,2019,93(4):928-944. |
| |
| 作者姓名： | 崔鑫 赵英俊 田丰 杨燕杰 |
| |
| 作者单位： | 核工业北京地质研究院,遥感信息与图像分析技术国家级重点实验室,北京,100029;核工业北京地质研究院,遥感信息与图像分析技术国家级重点实验室,北京,100029;核工业北京地质研究院,遥感信息与图像分析技术国家级重点实验室,北京,100029;核工业北京地质研究院,遥感信息与图像分析技术国家级重点实验室,北京,100029 |
| |
| 基金项目： | 本文为中国地调局航遥中心《准噶尔盆地东北缘航空高光谱油气信息提取示范及异常查证》(遥DC1707)资助成果。 |
| |
| 摘 要： | 准噶尔盆地东北缘乌伦古坳陷油气成藏潜力巨大,目前其勘探工作较少,亟待低成本,高效率,大面积的油气普查,以圈定潜在油气勘探靶区。利用航空高光谱数据,结合野外实测光谱,提取研究区油气微渗漏引起的烃类及相关蚀变矿物信息。结果显示,研究区的油气渗漏异常区具有环带状分布特征。野外查证发现,部分异常区具有地表晕环状分带、粘土化、碳酸盐化和植被中毒等油气渗漏相关的地质特征。渗漏的烃类以层状、条带状、斑点状和吸附式等四种形式富集地表。油气以烃分子形式沿断裂、裂缝等通道垂向逸散,具有"烟囱效应"。研究区油气渗漏受控于断层、不整合面和揉皱构造等。结合区域构造演化史和油气成藏史,认为研究区大规模的油气渗漏可能开始于燕山期,在喜山期达到渗漏高峰。并认为研究区中部隆起带具有较好的油气成藏潜力,是下一步油气勘探的重点区域。
|
| 关 键 词： | 航空高光谱 油气微渗漏 蚀变矿物 乌伦古坳陷 准噶尔盆地 |
| 收稿时间： | 2018/4/2 0:00:00 |
| 修稿时间： | 2018/8/22 0:00:00 |
Hyperspectral hydrocarbon exploration and geological verification of the oil and gas micro seepage in the northeastern margin of the Junggar Basin, China |
| |
| Cui Xin,Zhao Yingjun,Tian Feng and Yang Yanjie.Hyperspectral hydrocarbon exploration and geological verification of the oil and gas micro seepage in the northeastern margin of the Junggar Basin, China[J].Acta Geologica Sinica,2019,93(4):928-944. |
| |
| Authors: | Cui Xin Zhao Yingjun Tian Feng and Yang Yanjie |
| |
| Affiliation: | National Key Laboratory of Remote Sensing Information and Image Analysis Technique,Beijing Research Institute of Uranium Geology, CNNC, Beijing, 100029,National Key Laboratory of Remote Sensing Information and Image Analysis Technique,Beijing Research Institute of Uranium Geology, CNNC, Beijing, 100029,National Key Laboratory of Remote Sensing Information and Image Analysis Technique,Beijing Research Institute of Uranium Geology, CNNC, Beijing, 100029 and National Key Laboratory of Remote Sensing Information and Image Analysis Technique,Beijing Research Institute of Uranium Geology, CNNC, Beijing, 100029 |
| |
| Abstract: | The Wulungu depression, located in the northeastern margin of Junggar basin, is of great potential for hydrocarbon accumulation. However, less exploration has been performed in this area and a low- cost, high- efficiency and wide- area oil reconnaissance survey is needed urgently to outline target areas of optimized oil and gas reservoir. In this study, airborne hyperspectral, geological verification and oil and gas chemical exploration are used to evaluate the hydrocarbon exploration potential and related altered minerals data. The results show that oil and gas micro- seepage anomalous are characterized by circular zonation. Field survey also suggests that the part of anomalous areas has some geological features (such as circular zonation on surface, clayization, carbonatization and vegetation poisoning etc), which all are related oil- gas seepage. Seepage hydrocarbon was accumulated near the surface in four forms, stratiform, stripe, massive spots and adsorption. Oil and gas migrated along faults and fractures in the form of hydrocarbon molecule, which is so- called chimney effect. The hydrocarbon micro- seepage in the study area is controlled by unconformity structure, secondary thrust fault and corrugation structure. According to regional tectonic evolution and hydrocarbon accumulation history, authors suggest that a large- sized oil and gas seepage may start from the Yanshanian, and reach to a peak in Himalayan period. It can be concluded in this study that the uplift in the middle of study area is of good potential for gas- oil accumulation and will be the key area for future oil- gas exploration. |
| |
| Keywords: | airborne hyperspectral oil and gas micro- seepage altered minerals Wulungu depression Junggar Baisn |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地质学报》浏览原始摘要信息 |
|
点击此处可从《地质学报》下载全文 |
|
