دورية أكاديمية
Regional evaluation method of ground stress in shale oil reservoirs-taking the Triassic Yanchang formation in northern Shaanxi area as an example
| العنوان: | Regional evaluation method of ground stress in shale oil reservoirs-taking the Triassic Yanchang formation in northern Shaanxi area as an example |
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| المؤلفون: | Bing Hou, Yizhao Wang, Yu Zhang, Yuan You |
| المصدر: | Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 9, Iss 1, Pp 1-15 (2023) |
| بيانات النشر: | Springer, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Geophysics. Cosmic physics |
| مصطلحات موضوعية: | Shale oil, Kaiser effect, Evaluation of ground stress evaluation, Geoengineering integration, Geophysics. Cosmic physics, QC801-809 |
| الوصف: | Abstract Estimating in-situ stress in shale oil reservoirs is critical for predicting hydraulic fracture height. However, the varied longitudinal lithology and transverse isotropy challenge the regional evaluation of ground stress. A new method based on the Kaiser effect method and the Sn Model was proposed to evaluate regional ground stress from point to point. Kaiser tests obtained the regional tectonic stress coefficients. Combined with the dynamic and static transformation of elastic parameters, the Sn ground stress calculation model suitable for the Northern Shaanxi Area was constructed. According to the calculation results of ground stress in the Chang 7 section of 600 wells in this region, the plane distribution maps of maximum horizontal ground stress (SH) and the difference between SH and Minimum horizontal stress (S h) were drawn. It was found that the SH in this area was between 20 and 60 MPa, and the So was between 2.6 and 8.8 MPa. Compared with the 3D finite element method simulation results, the forward modeling results coincided well with the inversion results in this research. The causes of the plane distribution of ground stress in the Chang 7 section were explained by regional tectonic stress and paleo topography. It was found that the movement of plate and shell and deposition were critical factors of regional ground stress distribution. The research results provide a reference for further integration of geologic and engineering in evaluating shale oil reservoirs. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2363-8419 2363-8427 |
| Relation: | https://doaj.org/toc/2363-8419; https://doaj.org/toc/2363-8427 |
| DOI: | 10.1007/s40948-023-00665-6 |
| URL الوصول: | https://doaj.org/article/0f186ab1e0db4611b9c80159191517df |
| رقم الأكسشن: | edsdoj.0f186ab1e0db4611b9c80159191517df |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 23638419 23638427 |
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| DOI: | 10.1007/s40948-023-00665-6 |