Method for treating subterranean formations
US4741401A · kind A · utility
244Cited by
7References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1987 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Jan 16, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Control release capsules comprising a breaker contained within a enclosure member are employed to break fracturing fluids. The enclosure member is permeable to at least one fluid in the subterranean formation or injected with the capsules such that upon sufficient exposure to the fluid, the capsules rupture, thereby releasing the breaker to the formation. In such manner, the release of the breaker can be conducted in a controlled manner. In addition, the entire amount of breaker introduced into the formation is released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.