System and method for managed pressure wellbore strengthening
US10227836B2 · kind B2 · utility
0Cited by
8References
40Claims
0Family size
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Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Dec 20, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and methods for wellbore strengthening are disclosed. An effective way to strengthen a wellbore and prevent future fractures during drilling operations is to induce fractures having a desired fracture width profile and fracture length. Surface back pressure can be used to accurately induce such fractures. The induced fractures which are then sealed can increase fracture gradient of the wellbore thus mitigating future fractures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.