Wellbore consolidating tool for rotary drilling applications
US7493948B2 · kind B2 · utility
7Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2003 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Apr 3, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/138
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention generally relates to an apparatus and methods for improving the stability of a wellbore during drilling operations using a rotary drill string. More specifically, embodiments of the present invention provide systems and methods for enhancing the performance of the filter or mud cake layer on the wall of the wellbore as a protective and isolating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.