THE CHARACTERISTICS AND TYPES OF THE NATURAL GAS IN THE WEIHE BASIN AND ITS PROSPECTING POTENTIAL

LIU Lin; RUI Hui-chao; CHEN Bao-yun

Volume 22 Issue 2

Jun. 2016

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LIU Lin, RUI Hui-chao, CHEN Bao-yun, 2016. THE CHARACTERISTICS AND TYPES OF THE NATURAL GAS IN THE WEIHE BASIN AND ITS PROSPECTING POTENTIAL. Journal of Geomechanics, 22 (2): 256-268.

Citation:

LIU Lin, RUI Hui-chao, CHEN Bao-yun, 2016. THE CHARACTERISTICS AND TYPES OF THE NATURAL GAS IN THE WEIHE BASIN AND ITS PROSPECTING POTENTIAL. Journal of Geomechanics, 22 (2): 256-268.

Citation:

LIU Lin, RUI Hui-chao, CHEN Bao-yun, 2016. THE CHARACTERISTICS AND TYPES OF THE NATURAL GAS IN THE WEIHE BASIN AND ITS PROSPECTING POTENTIAL. Journal of Geomechanics, 22 (2): 256-268.

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THE CHARACTERISTICS AND TYPES OF THE NATURAL GAS IN THE WEIHE BASIN AND ITS PROSPECTING POTENTIAL

1.
China University of Geosciences, Beijing 100083, China
2.
Shaanxi Key Laboratory of exploration and comprehensive utilization of mineral resources, Xi'an 710054, China
3.
College of Earth Science and Resources, Chang'an University, Xi'an 710064, China
4.
Shaanxi Mining Industry & Trade Company, Xi'an 710054, China

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Received: 2015-11-18
Published: 2016-06-01

Abstract

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.
- the Weihe Basin,
- natural gas,
- helium,
- the upper Paleozoic,
- coal measure strata

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References(29)

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