Particles for use in wellbore fluids
US9676988B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 12, 2012 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Jun 27, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a method of manufacturing a solid phase barite containing material for use in a wellbore. The method includes the steps of providing the barite containing material having relatively small particles with a particle size distribution of at least 50 vol % particles having a diameter in the range of 1 μm to 10 μm and at least 90 vol % particles having a diameter in the range of 4 μm to 20 μm; and contacting the barite containing material with a liquid in order to form relatively large particles having a particle size distribution with at least 90 vol % of the particles having a diameter of at least 30 μm. There is also described a method of treating a wellbore with a fluid including the barite containing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.