High solids content slurry methods
US8490699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | May 31, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and system are disclosed for low damage gravel packing. The method comprises: combining a carrier fluid and a solids mixture into a slurry, wherein the solids mixture comprises a plurality of particle size distribution modes such that a packed volume fraction exceeds 0.75; contacting a screen with leak-off control agent to form a bridge; positioning the screen and circulating the slurry through the wellbore in any order such that the solids mixture is deposited between the screen and the wellbore; degrading the degradable material to increase porosity and permeability of the pack; removing the bridge; and producing a reservoir fluid from the formation. The system comprises the slurry, a tubing string and slurry pump to position the screen and circulate the slurry to form the bridge on the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.