Tools for use in subterranean boreholes having expandable members and related methods
US8820439B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jan 31, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/325
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Expandable apparatus for use in subterranean boreholes include at least one member configured to move between a retracted position and an extended position. Components of the expandable apparatus may include at least one surface for removing debris proximate to the tubular body. Components of the expandable apparatus may be configured to enable the expandable apparatus to increase a diameter of a subterranean borehole by greater than twenty percent. Components of the expandable apparatus may be configured to restrict fluid flow to nozzle assemblies. The expandable apparatus may include a protect sleeve having a push sleeve disposed therein. Methods of operating an expandable apparatus may include removing debris with a surface of the expandable apparatus. Methods of operating an expandable apparatus may also include selectively flowing fluid to nozzle assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.