Characteristics of Fluid Inclusions and Natural Gas Pool-forming&nbsp; Significance of the Upper Paleozoic Reservoirs in Sulige Gas Field

WANG  Kang-Dong, LI  Xian-Qing, FENG  Song-Bao, KONG  Long-Xi, XU Feng, CAO  Hong-Liang-

doi:10.11764/j.issn.1672-1926.2011.06.961

2011 , Vol. 22 >Issue 6: 961 - 968

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.06.961

Characteristics of Fluid Inclusions and Natural Gas Pool-forming Significance of the Upper Paleozoic Reservoirs in Sulige Gas Field

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1.State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,Beijing 100083,China;
2.College of Geoscience and Surveying Engineering,China University of Mining and Technology,Beijing 100083,China;
3.Geological Exploration Technologies Institute of Anhui Province,Hefei 230031,China;
4.Key State Laboratory of Petroleum Resource and Prospecting,China University of Petroleum,Beijing 102249,China

Received date: 2011-07-01

Revised date: 2011-08-30

Online published: 2011-12-10

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Abstract

Much microscopic geological information of oil and gas reservoirs can be obtained from the reservoir fluid inclusions.Fluid inclusion samples from the upper Paleozoic of the Sulige large gas field were tested and analyzed in this paper using the LABHR2VIS LABRAM HR800 laser Raman spectrometer and LINKAM THMS 600 cool-heating instrument.The results showed that the fluid inclusions of the upper Paleozoic Sulige large gas field included six types of the low saturated hydrocarbon inclusion,asphaltic hydrocarbon inclusion,highly saturated hydrocarbon inclusion,the CH₄-rich inclusion,the CO₂ inclusion and aqueous inclusion.The CH₄-rich inclusion,the CO₂inclusion and the hydrocarbon-bearing inclusion were the main types of these fluid inclusions,which were more than 50%.The data of the fluid inclusions measured by homogenization temperatures and analysed by laser Raman showed that rich hydrocarbon fluids of different components were charged in the Sulige large gas field at gas accumulation period.The homogenization temperatures of aqueous inclusions coexisted with hydrocarbon inclusions were ranged from 100℃ to 180℃,and the main peak temperature was 140-150℃.According to the measured homogenization temperatures of fluid inclusions and combined with the burial evolution and paleo-temperature history,the result suggested that the main gas accumulation period of the upper Paleozoic reservoirs in the Sulige large gas field was occurred at the late Jurassic and early Cretaceous (150-100Ma).

Key words： Fluid inclusion; Poo-forming period; Laser Raman analysis; The upper Paleozoic; Sulige large gas field.

Cite this article

WANG Kang-Dong, LI Xian-Qing, FENG Song-Bao, KONG Long-Xi, XU Feng, CAO Hong-Liang- . Characteristics of Fluid Inclusions and Natural Gas Pool-forming Significance of the Upper Paleozoic Reservoirs in Sulige Gas Field[J]. Natural Gas Geoscience, 2011 , 22(6) : 961 -968 . DOI: 10.11764/j.issn.1672-1926.2011.06.961

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