ORGANIC SALTS FOR REDUCING STONE PERMEABILITIES

    公开(公告)号:ZA201201675B

    公开(公告)日:2016-02-24

    申请号:ZA201201675

    申请日:2012-03-07

    Applicant: BASF SE

    Abstract: The use of free, aromatic acids which contain at least two aromatic ring systems or at least two acid functions, and/or salts thereof, for influencing rock formations in the exploitation of underground mineral oil and/or natural gas deposits is described. The free acids are used in particular for influencing and especially controlling the flow of acid into rock formations in so-called acidizing methods. Suitable salts of said aromatic acids serve for reducing the rock permeability and in particular reducing the inflow of water into the well bore. In addition to this use, corresponding methods are also claimed.

    ORGANIC SALTS FOR REDUCING STONE PERMEABILITIES

    公开(公告)号:AU2010281809B2

    公开(公告)日:2014-10-02

    申请号:AU2010281809

    申请日:2010-06-14

    Applicant: BASF SE

    Abstract: The invention relates to the use of free aromatic acids comprising at least two aromatic ring systems, or at least two acid functionalities, and/or the salts thereof, for influencing stone formations when mining underground petroleum and/or natural gas deposits. The free acids are used in particular when influencing and primarily controlling the inflow of acid in stone formations in a so-called acidizing process. Suitable salts of the indicated aromatic acids serve for reducing the stone permeability and in particular for reducing water inflow. The invention further relates to corresponding methods in addition to said use.

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