Heterogeneous proppant placement in a fracture with removable extrametrical material fill
US9863230B2 · kind B2 · utility
Assignee
Inventors
- Fedor Nikolaevich Litvinets
- Andrey Vladimirovich Bogdan
- Sergey Mikhailovich Makarychev-Mikhaliov
- Oleg Medvedev
- Alejandro Pena
- Konstantin Mikhailovich Lyapunov
- Alexander Vuacheslavovich Mikhaylov
- Timothy Lesko
- J. Ernest Brown
- Dean M. Willberg
- Ivan Vitalievich Kosarev
- Anatoly Vladimirovich Medvedev
- Jonathan E. Abbott
- Alexander Alexandrovich Burukhin
Key dates
| Filing date | Jun 12, 2012 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of injecting well treatment fluid including proppant and proppant-spacing filler material through a wellbore into the fracture, heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands spaced apart by the material, and removing the filler material to form open channels around the pillars for fluid flow from the formation through the fracture toward the wellbore. The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The filler material can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include extrametrical materials to provide reinforcement and consolidation of the proppant and/or to inhibit settling of the proppant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.