Biological and chemical composite blockage removing agent and preparation process and use thereof
US12344795B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 23, 2020 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Jan 26, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/582
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a biological and chemical composite blockage removing agent and preparation process and use thereof, and mainly solves the problems that the existing blockage removing agents have poor blockage removal effect on organic blockages, cause damage to formations and oil-wells, produce serious environmental pollution, and corrode the equipment, pipelines, and the like. The problems can be well solved by using a technical solution of a biological and chemical composite blockage removing agent, which contains the following components in parts by mass: A. 10-50 parts of a biosurfactant; B. 5-20 parts of a chemical surfactant; wherein the chemical surfactant is an anionic-nonionic surfactant, and said technical solution can be used in the industrial production for removing the blockage in the oilfield, and reducing the injection pressure and increasing the injection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.