Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case study
The optimal selection of fracturing interval for the exploitation of tight oil reservoirs is very important for formulating a development program. In this study, the reservoir quality and the reservoir fracability are evaluated, and the criteria for the optimal selection of the fracturing interval a...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2019-12-01
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| Series: | Open Geosciences |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/geo-2019-0075 |
| _version_ | 1818587115714248704 |
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| author | Liu Zhidi Shi Yujiang Zhou Jinyu Wang Changsheng Ma Tinghao Yang Junru Shi Mengxuan |
| author_facet | Liu Zhidi Shi Yujiang Zhou Jinyu Wang Changsheng Ma Tinghao Yang Junru Shi Mengxuan |
| author_sort | Liu Zhidi |
| collection | DOAJ |
| description | The optimal selection of fracturing interval for the exploitation of tight oil reservoirs is very important for formulating a development program. In this study, the reservoir quality and the reservoir fracability are evaluated, and the criteria for the optimal selection of the fracturing interval are established, using the tight reservoir in the the Qing I Member of Qingshankou Formation in the Daqingzijing Oilfield of China as the study site. The results indicate that the porosity, the oil saturation and the effective thickness of tight reservoir are keys to optimizing the fracturing interval. The brittleness index and the difference coefficient among the horizontal stresses in the reservoir have a strong influence on fracability. The stress difference coefficient in the reservoir is smaller and the reservoir develops microfractures, the complex mesh fractures are easier to occur during fracturing. The stress difference between the reservoir and the surrounding bed is small and the thickness of the surrounding bed is thin, it is easy to communicate with adjacent oil-bearing layers when fracturing. |
| first_indexed | 2024-12-16T09:03:44Z |
| format | Article |
| id | doaj.art-9fa10a871db3438389d3d9d3329bc515 |
| institution | Directory Open Access Journal |
| issn | 2391-5447 |
| language | English |
| last_indexed | 2024-12-16T09:03:44Z |
| publishDate | 2019-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Geosciences |
| spelling | doaj.art-9fa10a871db3438389d3d9d3329bc5152022-12-21T22:37:07ZengDe GruyterOpen Geosciences2391-54472019-12-0111196998110.1515/geo-2019-0075geo-2019-0075Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case studyLiu Zhidi0Shi Yujiang1Zhou Jinyu2Wang Changsheng3Ma Tinghao4Yang Junru5Shi Mengxuan6School of Earth Sciences and Engineering, Xi’an Shiyou University, Xi’an710065, ChinaChangqing Oilfield Exploration and Development Institute, Xi’an710021, ChinaChangqing Oilfield Exploration and Development Institute, Xi’an710021, ChinaChangqing Oilfield Exploration and Development Institute, Xi’an710021, ChinaSchool of Earth Sciences and Engineering, Xi’an Shiyou University, Xi’an710065, ChinaSchool of Earth Sciences and Engineering, Xi’an Shiyou University, Xi’an710065, ChinaSchool of Earth Sciences and Engineering, Xi’an Shiyou University, Xi’an710065, ChinaThe optimal selection of fracturing interval for the exploitation of tight oil reservoirs is very important for formulating a development program. In this study, the reservoir quality and the reservoir fracability are evaluated, and the criteria for the optimal selection of the fracturing interval are established, using the tight reservoir in the the Qing I Member of Qingshankou Formation in the Daqingzijing Oilfield of China as the study site. The results indicate that the porosity, the oil saturation and the effective thickness of tight reservoir are keys to optimizing the fracturing interval. The brittleness index and the difference coefficient among the horizontal stresses in the reservoir have a strong influence on fracability. The stress difference coefficient in the reservoir is smaller and the reservoir develops microfractures, the complex mesh fractures are easier to occur during fracturing. The stress difference between the reservoir and the surrounding bed is small and the thickness of the surrounding bed is thin, it is easy to communicate with adjacent oil-bearing layers when fracturing.https://doi.org/10.1515/geo-2019-0075tight oilreservoirfracturing intervaloptimal selectionlogging |
| spellingShingle | Liu Zhidi Shi Yujiang Zhou Jinyu Wang Changsheng Ma Tinghao Yang Junru Shi Mengxuan Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case study Open Geosciences tight oil reservoir fracturing interval optimal selection logging |
| title | Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case study |
| title_full | Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case study |
| title_fullStr | Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case study |
| title_full_unstemmed | Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case study |
| title_short | Selecting fracturing interval for the exploitation of tight oil reservoirs from logs: a case study |
| title_sort | selecting fracturing interval for the exploitation of tight oil reservoirs from logs a case study |
| topic | tight oil reservoir fracturing interval optimal selection logging |
| url | https://doi.org/10.1515/geo-2019-0075 |
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