Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/04301917390 |
A method to evaluate pore structures of fractured tight sandstone reservoirs using borehole electrical image logging | |
Xiao, Liang1,2,3; Li, Junran3; Mao, Zhiqiang4; Yu, Hongyan5 | |
2020-01-15 | |
发表期刊 | AAPG BULLETIN
![]() |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2020 |
卷号 | 104期号:1页码:205-226 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Fractures are important in improving tight sandstone pore connectivity and fluid flow capacity. However, the contribution of fractures to pore connectivity and fluid flow capability cannot be quantified using current methods. The objective of this study was to develop a method to quantitatively characterize reservoir improvement as a result of fractures. This method was proposed based on the experimental results of 37 core samples recovered from the Upper Triassic Chang 8 tight sandstone in the Jiyuan area of the Ordos Basin, China. The morphological features of the porosity spectra, the mercury injection capillary pressure curves, and the pore-throat radius distributions were analyzed. Accordingly, a method was proposed to construct pseudocapillary pressure (P-c) curves from the porosity spectra to characterize the pore structure of fractured reservoirs and to establish corresponding models based on the classified power function method. In addition, a model was developed to predict fracture formation permeability based on the Swanson parameter. The proposed method and models were applied in field applications, and the estimated results agreed well with the core and drill-stem testing data. Fractured formations contained good pore structure, high permeability, and oil production rata. The relative errors between the model-predicted pore structure evaluation parameters, permeability from P-c curves, and core-derived results are all within +/- 30.0%. With the integrated study of reservoir pore structure with permeability, the effective Upper Triassic Chang 8 fractured tight sandstone reservoirs with development potential were successfully identified. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000507457800010 |
WOS关键词 | ORDOS BASIN ; YANCHANG FORMATION ; SECONDARY POROSITY ; MICRO-FRACTURES ; OIL SANDSTONES ; GAS-RESERVOIRS ; CHANG 6 ; PERMEABILITY ; LOGS ; HYDROCARBON |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/248763 |
专题 | 地球科学 |
作者单位 | 1.China Univ Geosci, Key Lab Geodetect, Beijing, Peoples R China; 2.China Univ Geosci, Sch Geophys & Informat Technol, Beijing, Peoples R China; 3.Univ Tulsa, Dept Geosci, Tulsa, OK 74104 USA; 4.State Key Lab Petr Resource & Prospecting, Beijing, Peoples R China; 5.Northwest Univ, Xian, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Xiao, Liang,Li, Junran,Mao, Zhiqiang,et al. A method to evaluate pore structures of fractured tight sandstone reservoirs using borehole electrical image logging[J]. AAPG BULLETIN,2020,104(1):205-226. |
APA | Xiao, Liang,Li, Junran,Mao, Zhiqiang,&Yu, Hongyan.(2020).A method to evaluate pore structures of fractured tight sandstone reservoirs using borehole electrical image logging.AAPG BULLETIN,104(1),205-226. |
MLA | Xiao, Liang,et al."A method to evaluate pore structures of fractured tight sandstone reservoirs using borehole electrical image logging".AAPG BULLETIN 104.1(2020):205-226. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论