Method for cleaning gravel packs
US6832655B2 · kind B2 · utility
33Cited by
17References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Jan 22, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B37/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for cleaning a plugged gravel pack in a subterranean wellbore is provided. The method comprises the steps of using a pressure pulsating jet and a tangential vortex to deliver a pressure pulsating treatment fluid into the gravel pack wherein soluble plugging materials in the gravel pack are dissolved by the treatment fluid and insoluble plugging materials are moved through the gravel pack and circulated out of the wellbore. The treatment fluid is driven into the gravel pack to dissolve soluble fines and displace insoluble fines from the interstitial pore spaces of the gravel pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.