Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations
US5862869A · kind A · utility
11Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Oct 6, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for enhancing gas or oil production by delivering a nitrogen rich gas produced from a non-cryogenic source into the well and/or reservoir where the gas and/or oil is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.