ISSN 1673-8217 CN 41-1388/TE
主管:中国石油化工集团有限公司 主办:中国石油化工股份有限公司河南油田分公司
郭瑞超, 王浩, 蒲娅琳, 李延钧, 隆辉, 沈秋媛. 2020: 显微荧光确定砂岩含气性与物性下限探讨——以蜀南地区须家河组为例. 石油地质与工程, 34(05): 34-38.
引用本文: 郭瑞超, 王浩, 蒲娅琳, 李延钧, 隆辉, 沈秋媛. 2020: 显微荧光确定砂岩含气性与物性下限探讨——以蜀南地区须家河组为例. 石油地质与工程, 34(05): 34-38.
GUO Ruichao, WANG Hao, PU Yalin, LI Yanjun, LONG Hui, SHEN Qiuyuan. 2020: Determination of gas bearing property and lower limit of physical property of sandstone by microscopy fluorescence——by taking Xujiahe formation in Shunan area as an example. Petroleum Geology and Engineering, 34(05): 34-38.
Citation: GUO Ruichao, WANG Hao, PU Yalin, LI Yanjun, LONG Hui, SHEN Qiuyuan. 2020: Determination of gas bearing property and lower limit of physical property of sandstone by microscopy fluorescence——by taking Xujiahe formation in Shunan area as an example. Petroleum Geology and Engineering, 34(05): 34-38.

显微荧光确定砂岩含气性与物性下限探讨——以蜀南地区须家河组为例

Determination of gas bearing property and lower limit of physical property of sandstone by microscopy fluorescence——by taking Xujiahe formation in Shunan area as an example

  • 摘要: 利用储层显微荧光技术,根据荧光在孔喉中的分布特征和荧光强度,储层显微荧光能够清晰地反映储层孔隙结构中的孔隙和喉道以及连通情况,由此反映储层的质量和含气性。以四川盆地蜀南地区上三叠统须家河组砂岩储层为例,分别阐述了孔隙型储层和裂缝–孔隙型储层的荧光特征及含气性,结合实测物性数据确定两类储层孔隙下限。结果表明,孔喉中的显微荧光分布与强度可分为三类荧光级别,储层显微荧光法可较直观、可靠反映储层含油气性,利用该方法确定的物性下限与孔隙度–渗透率交会法、最小孔喉半径法和试油法等一致,表明在资料不全的情况下应用显微荧光确定储层含气性与物性下限的方法行之有效。

     

    Abstract: By using the reservoir techniques of microscopy fluorescence, according to fluorescence in the distribution of pore throats and intensity of fluorescence, reservoir microscopic fluorescence can clearly reflect the pore and throat as well as connectivity conditions in the pore structure, and then reveal the reservoir quality and gas bearing. Taking the sandstone reservoir of Xujiahe formation of upper Triassic in Shunan area of Sichuan basin as an example, the fluorescence characteristics and gas bearing property of pore type reservoir and fracture pore type reservoir are expounded respectively, and the pore lower limit of the two types of reservoirs is determined by combining the measured physical property data. The results show that the microscopy fluorescence distribution and intensity in the pore throat can be divided into three types of fluorescence levels. The reservoir microscopy fluorescence method can directly and reliably reflect the reservoir oil and gas potential. The lower limit of physical property determined by this method is consistent with the intersection method of porosity and permeability, the minimum pore throat radius method and the oil testing method, which proves that the method of determining the lower limit of gas bearing property and physical property by microscopy fluorescence is effective under the condition of incomplete data.

     

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