Impact of elliptical boreholes on in situ stress estimation from leak-off test data
Abstract We developed an inversion technique to determine in situ stresses for elliptical boreholes of arbitrary trajectory. In this approach, borehole geometry, drilling-induced fracture information, and other available leak-off test data were used to construct a mathematical model, which was in tu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2018-07-01
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| Series: | Petroleum Science |
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| Online Access: | http://link.springer.com/article/10.1007/s12182-018-0248-8 |
| _version_ | 1819109068929761280 |
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| author | Hong Xue Han Shunde Yin Bernt Sigve Aadnoy |
| author_facet | Hong Xue Han Shunde Yin Bernt Sigve Aadnoy |
| author_sort | Hong Xue Han |
| collection | DOAJ |
| description | Abstract We developed an inversion technique to determine in situ stresses for elliptical boreholes of arbitrary trajectory. In this approach, borehole geometry, drilling-induced fracture information, and other available leak-off test data were used to construct a mathematical model, which was in turn applied to finding the inverse of an overdetermined system of equations. The method has been demonstrated by a case study in the Appalachian Basin, USA. The calculated horizontal stresses are in reasonable agreement with the reported regional stress study of the area, although there are no field measurement data of the studied well for direct calibration. The results also indicate that 2% of axis difference in the elliptical borehole geometry can cause a 5% difference in minimum horizontal stress calculation and a 10% difference in maximum horizontal stress calculation. |
| first_indexed | 2024-12-22T03:19:57Z |
| format | Article |
| id | doaj.art-afb9ed4ba2d547da8dd0672b4aa38233 |
| institution | Directory Open Access Journal |
| issn | 1672-5107 1995-8226 |
| language | English |
| last_indexed | 2024-12-22T03:19:57Z |
| publishDate | 2018-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Petroleum Science |
| spelling | doaj.art-afb9ed4ba2d547da8dd0672b4aa382332022-12-21T18:40:45ZengKeAi Communications Co., Ltd.Petroleum Science1672-51071995-82262018-07-0115479480010.1007/s12182-018-0248-8Impact of elliptical boreholes on in situ stress estimation from leak-off test dataHong Xue Han0Shunde Yin1Bernt Sigve Aadnoy2Department of Petroleum Engineering, University of WyomingDepartment of Petroleum Engineering, University of WyomingPetroleum Engineering Department, University of StavangerAbstract We developed an inversion technique to determine in situ stresses for elliptical boreholes of arbitrary trajectory. In this approach, borehole geometry, drilling-induced fracture information, and other available leak-off test data were used to construct a mathematical model, which was in turn applied to finding the inverse of an overdetermined system of equations. The method has been demonstrated by a case study in the Appalachian Basin, USA. The calculated horizontal stresses are in reasonable agreement with the reported regional stress study of the area, although there are no field measurement data of the studied well for direct calibration. The results also indicate that 2% of axis difference in the elliptical borehole geometry can cause a 5% difference in minimum horizontal stress calculation and a 10% difference in maximum horizontal stress calculation.http://link.springer.com/article/10.1007/s12182-018-0248-8InversionLeak-off test dataElliptical boreholeIn situ stress |
| spellingShingle | Hong Xue Han Shunde Yin Bernt Sigve Aadnoy Impact of elliptical boreholes on in situ stress estimation from leak-off test data Petroleum Science Inversion Leak-off test data Elliptical borehole In situ stress |
| title | Impact of elliptical boreholes on in situ stress estimation from leak-off test data |
| title_full | Impact of elliptical boreholes on in situ stress estimation from leak-off test data |
| title_fullStr | Impact of elliptical boreholes on in situ stress estimation from leak-off test data |
| title_full_unstemmed | Impact of elliptical boreholes on in situ stress estimation from leak-off test data |
| title_short | Impact of elliptical boreholes on in situ stress estimation from leak-off test data |
| title_sort | impact of elliptical boreholes on in situ stress estimation from leak off test data |
| topic | Inversion Leak-off test data Elliptical borehole In situ stress |
| url | http://link.springer.com/article/10.1007/s12182-018-0248-8 |
| work_keys_str_mv | AT hongxuehan impactofellipticalboreholesoninsitustressestimationfromleakofftestdata AT shundeyin impactofellipticalboreholesoninsitustressestimationfromleakofftestdata AT berntsigveaadnoy impactofellipticalboreholesoninsitustressestimationfromleakofftestdata |