西藏羌塘盆地鸭湖地区天然气水合物成藏条件
An analysis of gas hydrate accumulation condition in the Duck Lake area, Qiangtang Basin, northern Tibet
查看参考文献43篇
|
文摘
|
近年来中国陆域冻土区天然气水合物调查研究结果表明,气源条件是制约羌塘盆地天然气水合物找矿突破的关键因素。为明确鸭湖地区天然气水合物成藏潜力,基于近年来的钻探调查成果,从陆域冻土区天然气水合物成藏系统理论出发,系统分析了影响天然气水合物成藏的冻土、气源、储集、构造等地质因素。分析结果显示,鸭湖地区局部具有较好的冻土、地温、气源、储集、构造及水源条件,具备一定的天然气水合物成藏潜力,继续寻找充足的烃类气源是下一步天然气水合物调查的主要方向。同时,选取钻探调查获取的地温梯度、气体组分等参数,结合音频大地电磁测深(AMT)冻土厚度调查成果,对鸭湖地区天然气水合物稳定带的厚度和底界深度进行了预测。结果显示,当甲烷为85%、乙烷为9%、丙烷为6%时,天然气水合物稳定带厚度与冻土厚度分布变化基本一致,稳定带厚度400~630m,底界深度400~680m。当甲烷为98%、乙烷为2%时,天然气水合物稳定带厚度急剧减薄,大部分地区仅有0~30m,最厚仅有150m,局部地区稳定带底界最深仅为240m。结合气测录井结果,认为渐新世唢呐湖组比上三叠统土门格拉组更具备天然气水合物成藏潜力,土门格拉组自身具备较强的生排烃能力,可作为寻找常规油气或页岩气的一个重要层位。 |
|
其他语种文摘
|
In recent years, the gas hydrate investigation in the permafrost region of China shows that the gas source condition is the key factor for controlling the breakthrough of gas hydrate exploration in the Qiangtang Basin. In order to further clarify the potential of gas hydrate accumulation in the Duck Lake area, the authors systematically analyzed such geological factors as permafrost, gas source, reservoir and structure based on the drilling results in recent years. The results show that there are good conditions of permafrost, geothermal gradient, gas source, reservoir, structure and water source in some areas, indicating that Duck Lake area has a certain gas hydrate accumulation potential. Finding sufficient hydrocarbon gas sources will be the main direction of the next gas hydrate investigation. In addition, the thickness of the gas hydrate stability zone (GHSZ) and the depth of bottom of GHSZ in the Duck Lake area were predicted by the data of the geothermal gradient and the gas composition obtained from the drilling and AMT results. Predictive results show that, when the methane is 85%, ethane is 9% and propane is 6%, the thickness distribution of GHSZ is basically the same as that of the permafrost. The thickness of GHSZ is between 400m and 630m, and the depth of the bottom of GHSZ is between 400m and 680m. Where methane is 98% and ethane is 2%, the thickness of GHSZ is sharply thinned, only 0~30m in most areas and only 150m thick in certain areas, and the depth of the deepest bottom of GHSZ is only 240m. Based on the results of gas logging, it is concluded that the Oligocene Suonahu Formation has more potential gas hydrate accumulation potential than the Upper Triassic Tumengela Formation in Duck Lake area, while Tumengela Formation has strong hydrocarbon generation and expulsion capability, which thus can be regarded as an important horizon for exploration of conventional oil and gas or shale gas. |
|
来源
|
地质通报
,2017,36(4):601-615 【核心库】
|
|
关键词
|
天然气水合物
;
成藏条件
;
鸭湖地区
;
羌塘盆地
|
|
地址
|
1.
中国地质调查局油气资源调查中心, 北京, 100029
2.
中国地质调查局成都地质调查中心, 四川, 成都, 610081
3.
中国地质科学院勘探技术研究所, 河北, 廊坊, 065000
4.
中国地质科学院地球物理地球化学研究所, 河北, 廊坊, 065000
5.
中国科学院力学研究所, 北京, 100190
6.
中石化胜利石油工程有限公司地质录井公司, 山东, 东营, 257064
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1671-2552 |
|
学科
|
地质学 |
|
基金
|
国土资源部中国地质调查局项目
|
|
文献收藏号
|
CSCD:5980169
|
参考文献 共
43
共3页
|
|
1.
Kvenvolden K A. A primer in gas hydrate.
The future of energy gases, 1570,1993:279-292
|
被引
1
次
|
|
|
|
|
2.
Sloan E D.
Clathrate Hydrate of Natural Gases (Second edit),1998:1-628
|
被引
1
次
|
|
|
|
|
3.
Collett T S. Permafrost-associated gas hydrate.
Natural gas hydrate in oceanic and permafrost environments,2000:43-60
|
被引
23
次
|
|
|
|
|
4.
Kvenvolden K A. The global occurrence of natural gas hydrate.
American Geophysical Union,2001,124:3-18
|
被引
5
次
|
|
|
|
|
5.
祝有海. 青海祁连山冻土区发现天然气水合物.
地质学报,2009,83(11):1761-1770
|
被引
18
次
|
|
|
|
|
6.
Dallimore S R. Summary and implication of the Mallik 2002 gas hydrate production research well program.
Scientific Results from the Mallik 2002 Gas Hydrate Production Research Well Program, Mackenzie Delta, 585,2005:1-36
|
被引
1
次
|
|
|
|
|
7.
Makogon Y F. Natural gas-hydrates-A potential energy source for the 21~(st) Century.
Journal of Petroleum Science and Engineering,2007,56:14-31
|
被引
141
次
|
|
|
|
|
8.
祝有海. 青藏高原天然气水合物潜在分布区预测.
地质通报,2011,30(12):1918-1926
|
被引
20
次
|
|
|
|
|
9.
祝有海. 中国冻土区天然气水合物的找矿选区及其资源潜力.
天然气工业,2011,31(1):13-19
|
被引
29
次
|
|
|
|
|
10.
徐学祖. 青藏高原多年冻土区天然气水合物的研究前景和建议.
地球科学进展,1999,14(2):201-204
|
被引
62
次
|
|
|
|
|
11.
张立新. 青藏高原多年冻土区与天然气水合物.
天然气地球科学,2001,12(1/2):22-26
|
被引
36
次
|
|
|
|
|
12.
黄朋. 青藏高原天然气水合物资源预测.
地质通报,2002,21(11):794-798
|
被引
47
次
|
|
|
|
|
13.
伊海生. 青藏高原多年冻土区天然气水合物形成潜力及远景.
西藏地质,2002,20(1):46-49
|
被引
11
次
|
|
|
|
|
14.
刘怀山. 西藏羌塘盆地天然气水合物地球物理特征识别与预测.
西北地质,2004,37(4):33-38
|
被引
34
次
|
|
|
|
|
15.
陈多福. 青藏高原冻土带天然气水合物的形成条件与分布预测.
地球物理学报,2005,48(1):165-172
|
被引
84
次
|
|
|
|
|
16.
吴青柏. 青藏高原天然气水合物的形成与多年冻土的关系.
地质通报,2006,25(1/2):29-33
|
被引
44
次
|
|
|
|
|
17.
库新勃. 青藏高原多年冻土区天然气水合物可能分布范围研究.
天然气地球科学,2007,18(4):588-592
|
被引
28
次
|
|
|
|
|
18.
郭祖军. 天然气水合物分布及青藏高原有利勘探区.
新疆石油地质,2012,33(3):266-271
|
被引
4
次
|
|
|
|
|
19.
He J. Assessing in the conditions favorable for the occurrence of gas hydrate in the Tuonamu area Qiangtang Basin, Qinghai-Tibetan, China.
Energy Conversion and Management,2012,53:11-18
|
被引
5
次
|
|
|
|
|
20.
Fu X. Gas hydrate formation and accumulation potential in the Qiangtang Basin, northern Tibet, China.
Energy Conversion and Management,2013,73:186-194
|
被引
8
次
|
|
|
|
|
了解气象卫星更多信息，请访问