METHOD OF ACIDIZING A SUBTERRANEAN FORMATION COMPRISING A GELLING AGENT

    公开(公告)号:US20210292639A1

    公开(公告)日:2021-09-23

    申请号:US17340384

    申请日:2021-06-07

    Abstract: Methods of acidizing a subterranean formation penetrated by a wellbore that include the steps of (a) injecting into the wellbore at a pressure below subterranean formation fracturing pressure a treatment fluid having a first viscosity and including an aqueous acid and a gelling agent selected from the group consisting of Formulas I-XI and combinations thereof; (b) forming at least one void in the subterranean formation with the treatment fluid; and (c) allowing the treatment fluid to attain a second viscosity that is greater than the first viscosity.

    GELLING FLUIDS AND RELATED METHODS OF USE
    2.
    发明申请

    公开(公告)号:US20190256766A1

    公开(公告)日:2019-08-22

    申请号:US16281458

    申请日:2019-02-21

    Abstract: Methods of acidizing a subterranean formation penetrated by a wellbore that include the steps of (a) injecting into the wellbore at a pressure below subterranean formation fracturing pressure a treatment fluid having a first viscosity and including an aqueous acid and a gelling agent selected from the group consisting of Formulas I-XI and combinations thereof; (b) forming at least one void in the subterranean formation with the treatment fluid; and (c) allowing the treatment fluid to attain a second viscosity that is greater than the first viscosity.

    Process for preparing mandelic aromatic compounds and aromatic aldehyde compounds
    3.
    发明申请
    Process for preparing mandelic aromatic compounds and aromatic aldehyde compounds 审中-公开
    制备扁桃酸芳香族化合物和芳族醛化合物的方法

    公开(公告)号:US20160297735A1

    公开(公告)日:2016-10-13

    申请号:US15036871

    申请日:2014-11-14

    Abstract: A process for preparing an aromatic compound or compounds where at least one mandelic group —CHOH—COOH is described, comprising a reaction for condensation of at least one aromatic compound with glyoxylic acid or derivatives thereof, wherein said condensation reaction is carried out substantially in the absence of any acid or any base added to the reaction medium. The condensation reaction is followed by an oxidation reaction in order to obtain aromatic aldehyde.

    Abstract translation: 一种制备芳族化合物或其中描述至少一种扁桃基-CHOH-COOH的化合物的方法,包括至少一种芳族化合物与乙醛酸或其衍生物缩合的反应,其中所述缩合反应基本上在 不存在加入到反应介质中的任何酸或任何碱。 缩合反应后进行氧化反应,得到芳族醛。

    N-ALKYLDIAMIDE COMPOUNDS AND GELS COMPRISING THE SAME

    公开(公告)号:US20200181065A1

    公开(公告)日:2020-06-11

    申请号:US16091199

    申请日:2017-04-04

    Abstract: The present invention is directed to N-alkyldiamide compounds responding to the following formula (I), wherein: R1 or R2 is selected from hydrogen or a linear, branched or cyclic, saturated or unsaturated, hydrocarbon chain having from 1 to 40 carbon atoms, with the proviso that one and only one of R1 or R2 is hydrogen, R is selected from cyclic or branched, saturated or unsaturated, hydrocarbon aliphatic chain having from 2 to 15 carbon atoms. The present invention also relates to the use of the com pounds of formula (I) as a gelling agent and to gel compositions comprising said compounds of formula (I).

    METHOD FOR MAKING END COMPOUNDS FROM INTERNAL KETONES ISSUED FROM THE DECARBOXYLATIVE KETONIZATION OF FATTY ACIDS OR FATTY ACID DERIVATIVES

    公开(公告)号:US20190292131A1

    公开(公告)日:2019-09-26

    申请号:US16347977

    申请日:2017-11-08

    Abstract: Method (M) for the preparation of an end compound from an internal ketone, said method comprising: —synthesizing the internal ketone by a process (P) for the decarboxylative ketonization of a fatty acid, a fatty acid derivative or a mixture thereof in a liquid phase with a metal compound as catalyst in the substantial absence of added solvent, wherein the fatty acid, fatty acid derivative or mixture thereof is added in sequential steps, the first step taking place at a temperature sequentially at a temperature from 100° C. to 270° C., —causing the internal ketone to react in accordance with a single or multiple chemical reaction scheme involving at least one reagent other than the internal ketone, wherein at least one product of the chemical reaction scheme is the end compound that is not further caused to be chemically converted into another compound.

    PROCESS FOR THE DECARBOXYLATIVE KETONIZATION OF FATTY ACIDS OR FATTY ACID DERIVATIVES

    公开(公告)号:US20210024443A1

    公开(公告)日:2021-01-28

    申请号:US16326460

    申请日:2017-08-17

    Abstract: The present invention is directed to a process for synthesizing an internal ketone K1 by decarboxylative ketonization reaction of a fatty acid, a fatty acid derivative or a mixture thereof in a liquid phase with a metal compound as catalyst in a reaction medium, said process being characterized in that a ketone K2 at liquid state, which is identical or similar to the ketone K1, is introduced into the reaction medium. The so-synthesized internal ketone K1 can be used for the preparation of a variety of end compounds, including surfactants having a twin-tail structure or a Gemini structure.

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