Method for integral profile control and plugging of water encroachment and steam channeling of heavy oil reservoir with edge and bottom water
US11719081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Jun 24, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/166
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed is a method for performing integral plugging control on water invasion and steam channeling of an edge-bottom water heavy oil reservoir. The method for performing integral plugging control on water invasion and steam channeling of an edge-bottom water heavy oil reservoir comprises the following steps: (1) selecting an oil reservoir; (2) arranging a huff-puff well; (3) performing steam huff-puff development; and (4) performing integral plugging control. An integral plugging control technology is used for the method, a high-strength nitrogen foam system is injected by means of well rows at different positions in the oil reservoir, and effective plugging walls are formed at different positions from the edge-bottom water to reduce water invasion and steam channeling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.