Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation
Tool decentralization is a major problem in the analysis of six-arm caliper data, particularly in highly deviated wells. It precludes accurate determination of borehole geometry and hence, interpretation of borehole volume, stratigraphic horizons and present-day stress orientation. We test four meth...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Society of Petrophysics & Well Log Analysts
2004
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| Online Access: | http://hdl.handle.net/20.500.11937/46971 |
| _version_ | 1848757706540711936 |
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| author | Wagner, D. Muller, B. Tingay, Mark |
| author_facet | Wagner, D. Muller, B. Tingay, Mark |
| author_sort | Wagner, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Tool decentralization is a major problem in the analysis of six-arm caliper data, particularly in highly deviated wells. It precludes accurate determination of borehole geometry and hence, interpretation of borehole volume, stratigraphic horizons and present-day stress orientation. We test four methods for correcting tool decentralization of six-arm caliper data, for the primary purpose of interpreting present-day stress orientations from borehole breakouts. The ''chord approach'' and ''ellipse algorithm'' yielded the most accurate corrections for tool decentralization in real and modeled scenarios of breakouts, key-seats and in-gauge holes. |
| first_indexed | 2025-11-14T09:32:21Z |
| format | Journal Article |
| id | curtin-20.500.11937-46971 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:32:21Z |
| publishDate | 2004 |
| publisher | Society of Petrophysics & Well Log Analysts |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-469712018-09-07T02:59:14Z Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation Wagner, D. Muller, B. Tingay, Mark Tool decentralization is a major problem in the analysis of six-arm caliper data, particularly in highly deviated wells. It precludes accurate determination of borehole geometry and hence, interpretation of borehole volume, stratigraphic horizons and present-day stress orientation. We test four methods for correcting tool decentralization of six-arm caliper data, for the primary purpose of interpreting present-day stress orientations from borehole breakouts. The ''chord approach'' and ''ellipse algorithm'' yielded the most accurate corrections for tool decentralization in real and modeled scenarios of breakouts, key-seats and in-gauge holes. 2004 Journal Article http://hdl.handle.net/20.500.11937/46971 Society of Petrophysics & Well Log Analysts fulltext |
| spellingShingle | Wagner, D. Muller, B. Tingay, Mark Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation |
| title | Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation |
| title_full | Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation |
| title_fullStr | Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation |
| title_full_unstemmed | Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation |
| title_short | Correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation |
| title_sort | correcting for tool decentralization of oriented six-arm caliper logs for determination of contemporary tectonic stress orientation |
| url | http://hdl.handle.net/20.500.11937/46971 |