地质力学学报2016，Vol.22Issue(2)：256-268,13.
渭河盆地天然气类型、成因特征及找矿远景分析
THE CHARACTERISTICS AND TYPES OF THE NATURAL GAS IN THE WEIHE BASIN AND ITS PROSPECTING POTENTIAL
刘林 1芮会超 2陈宝赟3
作者信息
- 1. 中国地质大学地球科学与资源学院，北京100083
- 2. 陕西省矿产资源勘查与综合利用重点实验室，西安710054
- 3. 长安大学地球科学与资源学院，西安710064
- 折叠
摘要
Abstract
According to the analysis results of gas samples from the geothermal well, the investigation well of oil and helium in the Weihe Basin, we find that all kinds of drills contain gas with helium prevalently, combining the results of geology and latest geophysical prospecting in recent years. And these gas could be divided into helium-rich gases and helium-poor gases based on the content of methane and helium. The results of geology, latest geophysical prospecting and geothermal well also support that the upper Paleozoic strata exits in the Weihe Bsain and insidious granite is not discovered. The regional tectonic evolution illustrates that the faults around the Weihe Basin and regional faults formed contemporaneously, and the formation of the Weihe Basin is the part of regional evolution, which settles mainly in Cenozoic era. Therefore, the former conclusions such as the Weihe Basin begins to form in the Eocene, there is no upper Paleozoic strata with coal in the basement, and the source rock of gas is bearing-uranium granite in the basement and the Qinling orogenic belt, should be further studied and explored. Compared with Ordos Basin, we find that the upper Paleozoic strata with coal in the basement could be the source rock of gas and the Gamma anomaly strata could be the source of helium, which provides evidence to reappraise the resource prospect of helium in the Weihe Basin.关键词
渭河盆地/天然气/氦气/上古生界/煤系地层Key words
the Weihe Basin/natural gas/helium/the upper Paleozoic/coal measure strata分类
能源科技引用本文复制引用
刘林,芮会超,陈宝赟..渭河盆地天然气类型、成因特征及找矿远景分析[J].地质力学学报,2016,22(2):256-268,13.
