PROCESS FOR OPTIMIZING THE PROPERTIES OF AQUEOUS POLYMER SOLUTIONS USED IN POLYMER FLOODING

    公开(公告)号:CA1231521A

    公开(公告)日:1988-01-19

    申请号:CA484345

    申请日:1985-06-18

    Applicant: BASF AG

    Abstract: PROCESS FOR OPTIMIZING THE PROPERTIES OF AQUEOUS POLYMER SOLUTIONS USED IN POLYMER FLOODING The invention relates to a process for optimizing the properties of aqueous polymer solutions used for polymer flooding which comprises treating the polymer solutions under turbulent flow conditions in dynamic fluid dispersing or pumping equipment such that the residence time of the polymer solution in this equipment is less than approximately 20 seconds and the pump energy used is from about 1 to about 15 watts/liter of solution processed. This process permits the optimization of flow properties important in polymer flooding which results in the improved efficiency of the polymer flooding process.

    Inhibitors against corrosion by CO2 and H2S in water-in-oil emulsions

    公开(公告)号:GB2190670A

    公开(公告)日:1987-11-25

    申请号:GB8712215

    申请日:1987-05-22

    Applicant: BASF AG

    Abstract: Inhibitors against corrosion by CO2 and H2S in water-in-oil emulsions, containing a) an imidazoline or tetrahydropyrimidine derivative of the general formula I and/or b) an acyclic intermediate thereof of the general formula II where in the formulae I and II R is C7- C22-alkyl or -alkenyl, n is 2 or 3 and x is an integer from 0 to 5 and in the formula I Y is H, C8-C18-alkyl or -alkenyl, or in which R1, n and x have the above meanings, and in formula II Y is H, C8-C18-alkyl or -alkenyl, or in which R1, n and x have the above meanings, are proposed.

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