Gas field reinjection water bactericide and composition thereof
A technology for reinjecting water and fungicides, applied in biocides, preparation of amino compounds, preparation of organic compounds, etc., can solve problems such as difficult anticipation requirements of sterilization treatment, achieve long duration of drug effect, less foam, and strong reduction of surface tension Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] Accurately weigh 1.16g (0.010mol) of tetramethylethylenediamine into a jacketed Erlenmeyer flask equipped with reflux, add 4.25g (0.022mol) of n-bromooctane at room temperature, add 15ml of isopropanol, and shake Shake well, and react with magnetic stirring at 80°C for 24-48 hours. The product after the reaction was distilled off under reduced pressure to remove the solvent to obtain a light yellow viscous substance. The crude product was recrystallized three times in a mixed solvent of acetone and absolute ethanol to remove impurities, and dried in vacuum to obtain a white powder, which was a double quaternary ammonium salt type gas field reinjection water fungicide (8-2-8).
Embodiment 2
[0036] Weigh 15.8g of organic guanidine, 5.6g of diquaternary ammonium salt, 23.5g (0.022mol) of glutaraldehyde, and 55.1g of water, and make an aqueous solution of organic guanidine, then slowly add the diquaternary ammonium obtained in Example 1 under stirring Salt-type gas field reinjection water fungicide (8-2-8), until it is completely dissolved, then add glutaraldehyde liquid, and mix well.
Embodiment 3
[0038] The bactericidal composition described in Example 2 was added to the reinjection water of the gas field, and the water sample was inoculated at 37°C for 4 hours, and then the bactericidal performance was tested by the extinction dilution method described in the standard (SY / T 0532-93). The bactericidal effect at the dosing concentration is compared with that of a single fungicide in Table 1.
[0039] The extinct dilution method described in the standard (SY / T 0532 - 93) is applicable to the analysis of saprophytic bacteria, sulfate reducing bacteria and iron bacteria in oilfield injection water, and the analysis of bacteria in other water in oilfields can be referred to. Determination of saprophytic bacteria, sulfate reducing bacteria and iron bacteria were all carried out by exsolution method. The water sample to be measured is injected into the test bottle or test tube step by step for inoculation and dilution until the last test bottle or test tube grows sterile, and...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com