Method for enhancing gas well secondary recovery operations
US7198106B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 9, 2004 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Sep 30, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process and system for the remediation and enhancement of secondary recovery gas from a natural gas well and geologic formation. The present invention employs the use of protic and aprotic solvents which are injected in sequence into the well and geologic formation. The protic and aprotic solvents are injected into the well bore and progress through the geologic fissures and pores of the geologic formation. After reacting with the downhole and geologic formation deposits, the solvent solute, containing the remaining solvent, dissolved solids and debris, and any remaining components are extracted from the well and formation resulting in improved gas well flow rate through the formation and well bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.