Proppant containment apparatus
US6155342A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Jan 28, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A proppant containment apparatus and associated method of using the apparatus permit continued delivery of a proppant slurry to a subterranean wellbore after failure of a crossover portion of the apparatus during a fracturing operation, eliminating the need to stop the fracturing operation and remove and replace expensive items of equipment after such crossover failure. In a preferred embodiment, the proppant containment apparatus has a tubular crossover member with an internal flow passage, circulation port, and side wall outlet openings, first and second coaxial tubular structures, the first tubular structure being perforated, a tubular screen positioned between the first and second tubular structures, a ball, and a ball seat having a spaced series of grooves formed thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.