Fluids For Fracking Of Paraffinic Oil Bearing Formations

    公开(公告)号:US20200017750A1

    公开(公告)日:2020-01-16

    申请号:US16495375

    申请日:2018-01-16

    Abstract: This invention provides a fracturing fluid comprising i) 85 wt.-% or more of an aqueous carrier fluid as continuous phase, ii) 0.001 to 1.5 wt.-% of a first wax inhibitor being dispersed in the carrier fluid, the wax inhibitor being selected from the group consisting of a) copolymers of ethylene and ethylenically unsaturated esters, ethers and/or C3 to C30-alkenes, b) homo- or copolymers of ethylenically unsaturated carboxylic acids, bearing C12-C50-alkyl radicals bound via ester, amide and/or imide groups, c) ethylene copolymers grafted with ethylenically unsaturated esters and/or ethers, d) homo- and copolymers of C3 to C30-olefins, and e) condensation products of alkyl phenols with aldehydes and/or ketones iv) optionally a water soluble polymer for viscosity adjustment, wherein the amount of water-immiscible hydrocarbons is less than 2.5 wt.-%.

    Polymer compositions and use thereof as pour Point depressants in Paraffin-containing hydrocarbon oils

    公开(公告)号:US20220380590A1

    公开(公告)日:2022-12-01

    申请号:US17764111

    申请日:2020-08-31

    Abstract: The invention relates to polymer compositions with improved manageability, The invention also relates to a polymer composition obtainable by radical polymerisation of A) 95-40 wt. % of a monomer mixture comprising Ai) 65-98 wt. % of at least alkyl (meth)acrylate having a linear C16-C40 alkyl radical and Aii) 2-35 wt. % of at least one comonomer selected from (meth)acrylates and (meth)acrylamides, which supports an optionally substituted aromatic radical bonded via an alkylene, alkenylene, oxyalkylene or polyoxyalkylene group to the ester group of the (meth)acrylate or to the amide group of the (meth)acrylamide, in the presence of B) 5-60% by weight % of at least one ethylene copolymer. The invention further relates to a method for the preparation and use thereof as flow improvers for paraffin-containing hydrocarbon oils.

Patent Agency Ranking