Method of completing poorly consolidated formations
US7013973B2 · kind B2 · utility
75Cited by
28References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2003 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jul 11, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/261
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
It is proposed a method for completing an unconsolidated interval, including particulates, in a subterranean formation, including a consolidation steps. The consolidation step is performed by injection of an aqueous solution of colloidal particles with a pH modifier and/or an ionic-strength modifier. A hard gel is formed that holds the particulates together. The consolidation is followed by hydraulic fracturing. Diversion towards area of less permeability may be enhanced by the use of micrometric particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.