| abstract |
The invention relates to an online injection type oil displacement agent containing a hydrophobic association polymer emulsion and a preparation method thereof, which mainly solves the relatively lengthy and complicated production process of the hydrophobic association polymer used in the high-temperature and high-salt reservoir conditions in the prior art , High energy consumption, complex equipment and process, bring some difficult problems to the field application of oil field, especially the oil displacement construction of offshore oil reservoir. The present invention adopts an online injection type oil displacement agent containing a hydrophobic association polymer emulsion, which comprises the following components in terms of weight percentage: 0.01 to 3.0 parts of a hydrophobic association acrylamide polymer emulsion, 0.01 to 5.0 parts The technical scheme of surfactant for oil displacement and 92.0-99.98 parts of water solves this problem better, and can be used as an oil displacement agent for online injection of high-temperature, high-salt harsh onshore or marine reservoirs to achieve enhanced oil recovery industrial production and application. |