苏东区块盒8段储层微观孔隙结构特征研究

鄂尔多斯盆地苏东区块盒8段储层是典型的致密砂岩储层,影响储层质量的因素较为复杂。以铸体薄片、扫描电镜和物性分析等资料为基础,对储层微观孔隙结构特征进行了定性分析,同时应用恒速压汞方法对储层微观孔隙结构进行了定量表征。研究结果表明：苏东区块盒8段低渗储层物性主要受喉道控制,而不是孔隙;平均喉道半径越大,微观均值系数越小,相对大喉道越多,排驱压力越低,储层微观孔隙结构一般越好,反映储层微观孔隙结构品质越好因此,喉道是影响致密砂岩储层质量的主要微观地质因素。...

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Published in地质与勘探 Vol. 52; no. 2; pp. 340 - 345
Main Author 杜江民 傅强 刘东明 刘旭辉
Format Journal Article
LanguageChinese
Published 2016
Subjects
储层微观孔隙结构
喉道
恒速压汞
盒8
鄂尔多斯盆地
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ISSN0495-5331

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Summary:鄂尔多斯盆地苏东区块盒8段储层是典型的致密砂岩储层,影响储层质量的因素较为复杂。以铸体薄片、扫描电镜和物性分析等资料为基础,对储层微观孔隙结构特征进行了定性分析,同时应用恒速压汞方法对储层微观孔隙结构进行了定量表征。研究结果表明：苏东区块盒8段低渗储层物性主要受喉道控制,而不是孔隙;平均喉道半径越大,微观均值系数越小,相对大喉道越多,排驱压力越低,储层微观孔隙结构一般越好,反映储层微观孔隙结构品质越好因此,喉道是影响致密砂岩储层质量的主要微观地质因素。
Bibliography:11-2043/P
Ordos Basin, He 8 section of Shihezi Formation, micro-pore structure of reservoir,constant-rate mercury;throat
DU Jiang-min ,FU Qiang ,LIU Dong-ming ,LIU Xu-hui（1. Department of Geology, Northwest University and State Key Laboratory for Continental Dynamics ,Xi ＇ an , Shanxi 710069; 2. College of Resources, Shijiazhuang University of Economics, Shijiazhuang Hebei 050031 ; 3. Production Logging Center of Logging Investment Co., Ltd., CNPC,Gaoling, Shannxi 710201 ）
The reservoirs of He 8 section of the Shihezi Formation in the Sudong area of the Ordos basin are characterized by dense sandstone, where comlex factors influence the quality of the reservoirs.？Based on conventional methods such as casting slice, scanning electron microscope（SEM） and physical property analysis，characteristics of reservoir microscopic pore structure have been qualitatively analyzed, then quantitatively described by constant-rate mercury injection technique. The results show that the quality of reservoirs is mainly controlled by
ISSN:0495-5331