Method and apparatus for injecting a gaseous stream into a subterranean zone
US4396064A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 1981 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | May 14, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a method for injecting a gaseous stream into a hot subterranean zone by positioning a casing means in fluid communication with the hot subterranean zone and the surface; insulating a lower portion of the outer surface of the casing, the insulated lower portion including the portion of the casing in the hot subterranean zone; and injecting the gaseous stream into the hot subterranean zone through the casing at a rate sufficient to maintain the casing below a selected maximum temperature, the improvement comprising: the use of a reduced diameter casing as the lower portion of the casing. An apparatus useful in the practice of the improved method is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.