Squeeze cementing
US5121795A · kind A · utility
221Cited by
35References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1991 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Jan 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to a method of terminating the undesirable flow of fluid through a gravel pack in a wellbore, or from a highly permeable portion of or fracture in a subterranean formation into a wellbore, which method involves the use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement, which is utilized in either a slurry of water or hydrocarbon liquid, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.