Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin
The reservoir structural fractures have excellent fractal characteristics, as well as self-similarities. Based on the fractal theory, the surface fractal characteristics of faults and the fractal characteristic of fractures in the core of the Xujiahe Formation in the Fault-Fold Belt of the central Y...
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Universidad Nacional de Colombia
2018-04-01
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| Series: | Earth Sciences Research Journal |
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| Online Access: | https://revistas.unal.edu.co/index.php/esrj/article/view/72250 |
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| author | Cunhui Fan Qirong Qin Dongfeng Hu Xiaolei Wang MengYue Zhu Wei Huang Yuxi Li Muhammad Aqeel Ashraf |
| author_facet | Cunhui Fan Qirong Qin Dongfeng Hu Xiaolei Wang MengYue Zhu Wei Huang Yuxi Li Muhammad Aqeel Ashraf |
| author_sort | Cunhui Fan |
| collection | DOAJ |
| description | The reservoir structural fractures have excellent fractal characteristics, as well as self-similarities. Based on the fractal theory, the surface fractal characteristics of faults and the fractal characteristic of fractures in the core of the Xujiahe Formation in the Fault-Fold Belt of the central Yuanba area were studied, and a quantitative relationship was set up between them. Based on the fractal characteristics of faults, predictions were made of the favorable fracture zone, which provides a new idea for the research of fracture, as well as offers theoretical references for exploring the fracture development zone during oil-gas exploration. The results show the following: the seismic value of reflection fault fractal dimension of the Xujiahe Formation is 1.5284; the correlation coefficient R2 is bigger than 0.9901; the capacity dimension linear regression correlation coefficient of the fracture in core of the Xujiahe Formation is bigger than 0.98; the fractal dimension D can well reflect the fault and fracture development degree, as well as the complexity of the fracture system; it can quantitatively calculate the density of the fracture of the reservoir in the area; the areas of capacity dimension bigger than 1.45 are the fracture development zones in the Fault-Fold Belt of the central Yuanba area; the oil and gas enrichment degree is high; the areas with the fractal dimension value between 0.95 and 1.45 are the fracture relatively-developed zones; the fractal dimension with values smaller than 0.95 are the lack of fracture areas. |
| format | Article |
| id | doaj-art-71232c64cf6441d29be7855bee3fcbc5 |
| institution | OA Journals |
| issn | 1794-6190 2339-3459 |
| language | English |
| publishDate | 2018-04-01 |
| publisher | Universidad Nacional de Colombia |
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| series | Earth Sciences Research Journal |
| spelling | doaj-art-71232c64cf6441d29be7855bee3fcbc52025-08-20T02:19:15ZengUniversidad Nacional de ColombiaEarth Sciences Research Journal1794-61902339-34592018-04-0122211311810.15446/esrj.v22n2.7225048642Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan BasinCunhui Fan0Qirong Qin1Dongfeng Hu2Xiaolei Wang3MengYue Zhu4Wei Huang5Yuxi Li6Muhammad Aqeel AshrafSchool of Geoscience and Technology; Southwest Petroleum University; Chengdu 610500; ChinaSchool of Geoscience and Technology; Southwest Petroleum University; Chengdu 610500; ChinaExploration Company SINOPEC Chengdu 610041, ChinaSchool of Geoscience and Technology; Southwest Petroleum University; Chengdu 610500; ChinaSchool of Geoscience and Technology; Southwest Petroleum University; Chengdu 610500; ChinaSchool of Geoscience and Technology; Southwest Petroleum University; Chengdu 610500; ChinaSchool of Geoscience and Technology; Southwest Petroleum University; Chengdu 610500; ChinaThe reservoir structural fractures have excellent fractal characteristics, as well as self-similarities. Based on the fractal theory, the surface fractal characteristics of faults and the fractal characteristic of fractures in the core of the Xujiahe Formation in the Fault-Fold Belt of the central Yuanba area were studied, and a quantitative relationship was set up between them. Based on the fractal characteristics of faults, predictions were made of the favorable fracture zone, which provides a new idea for the research of fracture, as well as offers theoretical references for exploring the fracture development zone during oil-gas exploration. The results show the following: the seismic value of reflection fault fractal dimension of the Xujiahe Formation is 1.5284; the correlation coefficient R2 is bigger than 0.9901; the capacity dimension linear regression correlation coefficient of the fracture in core of the Xujiahe Formation is bigger than 0.98; the fractal dimension D can well reflect the fault and fracture development degree, as well as the complexity of the fracture system; it can quantitatively calculate the density of the fracture of the reservoir in the area; the areas of capacity dimension bigger than 1.45 are the fracture development zones in the Fault-Fold Belt of the central Yuanba area; the oil and gas enrichment degree is high; the areas with the fractal dimension value between 0.95 and 1.45 are the fracture relatively-developed zones; the fractal dimension with values smaller than 0.95 are the lack of fracture areas.https://revistas.unal.edu.co/index.php/esrj/article/view/72250Fractal characteristicsstructural fractureXujiahe Formationcentral Yuanba |
| spellingShingle | Cunhui Fan Qirong Qin Dongfeng Hu Xiaolei Wang MengYue Zhu Wei Huang Yuxi Li Muhammad Aqeel Ashraf Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin Earth Sciences Research Journal Fractal characteristics structural fracture Xujiahe Formation central Yuanba |
| title | Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin |
| title_full | Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin |
| title_fullStr | Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin |
| title_full_unstemmed | Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin |
| title_short | Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin |
| title_sort | fractal characteristics of reservoir structural fracture a case study of xujiahe formation in central yuanba area sichuan basin |
| topic | Fractal characteristics structural fracture Xujiahe Formation central Yuanba |
| url | https://revistas.unal.edu.co/index.php/esrj/article/view/72250 |
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