Oilfield reinjection water sterilizing agent
A technology for oil field re-injection of water and bactericide, applied in the direction of bactericide, biocide, biocide, etc., can solve the problems of inconvenient transportation, irritating the operator's skin, easy to volatilize, etc., and achieve the simplified water injection process and long sterilization time. Effective, chemically stable effect
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Embodiment 1
[0007] Example 1 A fungicide for oilfield reinjection water is composed of the following raw materials in weight ratios: 2 parts of butanediamine, 4 parts of guanidine sulfate, 1.6 parts of polyhexamethylene guanidine, and 1.4 parts of polyolefin-based guanidine. The preparation method is that firstly, butanediamine and guanidine sulfate are added into the reaction kettle in proportion, and the temperature is Stir at ℃ for 4 hours, cool to normal temperature after the reaction is completed, then add polyhexamethylene guanidine and polyalkenyl guanidine, and then stir and mix evenly.
[0008] The bactericide described in embodiment 1 is compared with traditional bactericide effect in Table 1
[0009]
this invention
Aldehydes
Quaternary ammonium salts
fungicide
Iodine sterilization
agent
Alcohol sterilization
agent
Sterilization rate (10 6 / ml)
99.7% ...
Embodiment 2
[0012] Embodiment 2, a fungicide for oilfield reinjection water, is composed of the following raw materials in weight ratio, 1 part of butanediamine, 5 parts of guanidine sulfate, 1 part of polyhexamethylene guanidine, and 2 parts of polyolefin-based guanidine.
[0013] The preparation method is: first add butyl diamine and guanidine sulfate into the reaction kettle in proportion, stir for 8 hours at a temperature of 120 ° C, cool to normal temperature after the reaction is completed, and then add polyhexamethylene guanidine, polyolefin-based guanidine Add, then stir to combine.
[0014] The bactericide described in embodiment 2 is compared with traditional bactericide effect in Table 3
[0015]
this invention
Aldehydes
Bacteria
Bacteria
Quaternary ammonium salts
fungicide
Bacteria
Iodine sterilization
agent
Alcohol sterilization
agent
Sterilization rate (10 6 / ml)
99.5%
...
Embodiment 3
[0019] Embodiment 3, a fungicide for oilfield reinjection water, is composed of the following raw materials in weight ratio, 3 parts of butanediamine, 3 parts of guanidine sulfate, 2 parts of polyhexamethylene guanidine, and 1 part of polyolefin-based guanidine.
[0020] The preparation method is: first add butyl diamine and guanidine sulfate into the reaction kettle in proportion, stir for 2 hours at a temperature of 200 ° C, cool to normal temperature after the reaction is completed, and then add polyhexamethylene guanidine, polyolefin-based guanidine Add, then stir to combine.
[0021] The bactericide described in embodiment 3 is compared with traditional bactericide effect in Table 5
[0022]
this invention
Aldehydes
Bacteria
Bacteria
Quaternary ammonium salts
fungicide
Bacteria
Iodine sterilization
agent
Alcohol sterilization
agent
Sterilization rate (10 6 / ml)
99.9%
...
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