WO2010141285A3
Method and apparatus for determining radial shear velocity variation from dipole acoustic logging
Abstract
A radial shear velocity profile of an earth formation is obtained by using dipole and/or cross-dipole measurements. The non-uniqueness in the inversion is addressed by using a constraint based on the fact that high-frequency dipole shear waves are mostly sensitive to the near-borehole shear velocity.
Term
No projected expiry on record.
- Priority
- Filed
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Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| US5077697A | Cites | United States of America | A | International search |
| US7310285B2 | Cites | United States of America | A | International search |
| US7313479B2 | Cites | United States of America | A | International search |
| US7330799B2 | Cites | United States of America | A | International search |
7 members in 3 offices
Priority claims6
| Document | Office | Kind | Date |
|---|---|---|---|
| 18406509 | United States of America | P | |
| 78702810 | United States of America | A | |
| 12787028 | – | – | – |
| 61184065 | – | – | – |
| US20090184065P | – | – | – |
| US20100787028 | – | – | – |
Members7
| Document | Office | Kind | |
|---|---|---|---|
| US2010309748A1 | United States of America | A1 | |
| WO2010141285A2 | World Intellectual Property Organization (WIPO) | A2 | |
| WO2010141285A3This record | World Intellectual Property Organization (WIPO) | A3 | |
| EP2438473A2 | European Patent Office (EPO) | A2 | |
| US8379483B2 | United States of America | B2 | |
| EP2438473A4 | European Patent Office (EPO) | A4 | |
| EP2438473B1 | European Patent Office (EPO) | B1 |
3 legal events, as 2 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Non-entry into the national phaseNENP | NENP | DE | |
| Wipo information: entry into national phaseWWE | WWE | WO | |
| Ep: the epo has been informed by wipo that ep was designated in this application121 | 121 | WO |
Numbers
- Publication
- 2010/141285
- Publication, DOCDB
- 2010141285
- Publication, EPODOC
- WO2010141285
- Application
- 36180
- Application, DOCDB
- 2010036180
- Application, EPODOC
- WO2010US36180
Titles2
- English
- METHOD AND APPARATUS FOR DETERMINING RADIAL SHEAR VELOCITY VARIATION FROM DIPOLE ACOUSTIC LOGGING
- French
- PROCÉDÉ ET APPAREIL DE DÉTERMINATION D'UNE VARIATION DE VITESSE DE CISAILLEMENT RADIAL À PARTIR D'UNE DIAGRAPHIE ACOUSTIQUE DIPOLAIRE
Classification
- CPC, 2
- G01V1/50
- G01V2210/626
- IPC, 2
- G01V1 48
- G01V1 28
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