| 摘要: |
| 分析尼泊尔石油地质条件对于促进尼泊尔油气的勘探开发有重要意义。本文通过全面搜集尼泊尔油气地质及相关资料，结合实地考察和部分样品分析结果，报道了尼泊尔区域地质特征、油气勘探现状、区域构造特征和地层发育特征；分析了Dailekh地区出露的油气苗特征、烃源条件、生储盖和油气圈闭条件，认为Dailekh地区发育四套烃源岩层，多个生储盖组合，具有较好的油气勘探前景；油气苗为高成熟烃源岩裂解的产物，可能来自变质岩推覆体下伏沉积岩层；断层和逆冲相关的背斜、突起构造和倾斜断块等是找油气的重要构造。 |
| 关键词: 油气苗 油气地质 勘探现状 尼泊尔 |
| DOI：10.19826/j.cnki.1009-3850.2020.07011 |
| 附件 |
| 投稿时间：2020-01-06修订日期：2020-04-10 |
| 基金项目:商务部援外项目《援尼泊尔油气资源调查》（CGSA001） |
|
| Petroleum geological conditions in Dailekh area, western Nepal |
| Tan Fuwen, Yang Ping, Wang Zhenghe, Zhan Wangong, Du Baiwei, Li Zaihui |
| (Chengdu Center, China Geological Survey, Chengdu 610081, Sichuan, China) |
| Abstract: |
| It is of great significance to analyze the petroleum geological conditions of Nepal to promote the exploration and development of oil and gas in Nepal. Basing on comprehensive collections of geological data related to oiland gasin Nepal, combining with field investigation and a number of sample analysis results, this paper reports the regional geology, oil and gas exploration status, regional structural characteristics and stratigraphic developments in Nepal, and analyzes oil and gas seeps, source conditions, source reservoir caps and oil and gas trap conditions exposed in Dailekh area. It is concluded that:(1) there are four sets of hydrocarbon sources in Dailekh area;(2) a number of source reservoir cap assemblages are with potential exploration prospects for oil and gas; (3)the oil and gas seeps are the products of the cracking of highly matured source rocks, which probably came from the sedimentary strata under the metamorphic nappe; (4) the anticlines, protruding structures and inclined fault blocks related to faults and thrusts are important structures for oil and gas exploration. |
| Key words: oil and gas seep oil and gas geology exploration history Nepal |
