Use of single moleule quarternary ammonium salt compound as clay stabilizing, antiexpanding and deblocking extender

Use of single moleule quarternary ammonium salt compound as clay stabilizing, antiexpanding and deblocking extender

CN
  • CN 1,240,807 C
  • Filed: 01/12/2004
  • Issued: 02/08/2006
  • Est. Priority Date: 01/12/2004
  • Status: Active Grant
First Claim
Patent Images

1. , the clay stabilization of unit molecule quaternary ammonium salt, anti-swollen, sand control and unblocking and injection increasing purposes, described unit molecule quaternary ammonium salt is selected from formula (I) compound, formula (II) compound, formula (III) compound, formula (IV) compound, formula V compound, formula (VI) compound, or the mixture of the arbitrary proportion of two or more compounds in them:

  • The molecular formula of formula (I) compound (unit molecule mono-quaternaries) is;

    A 1A 2A 3N +A 4B -(I) The molecular formula of formula (II) compound (unit molecule list pyridinium salt) is;

    A 1Py +B -(II) The molecular formula of formula (III) compound (unit molecule bi-quaternary ammonium salt) is;

    A 1A 2A 3N +X nN +A 4A 5A 6B 2-(III) The molecular formula of formula (IV) compound (unit molecule double amidopyridine salt) is;

    Py +X nPy +B 2-(IV) The molecular formula of formula V compound (unit molecule multi-quaternary ammonium salt) is;

    A 1A 2A 3N +X nN +(A 7)(A 8)X nN +A 4A 5A 6B 3-(V) The molecular formula of formula (VI) compound (unit molecule pyridine ammonium salt) is;

    Py +X nN +(A 1)(A 2)X nPy +B 3-(VI) Wherein above various in, A 1-A 8Independently be separately-H ,-C nH 2n+1(n=1-8) ,-Ph, PhCH 2-, ROH (R is alkyl or substituted alkyl) or RX (R is alkyl or substituted alkyl, and X is a halogen);

    B -Be OH -, Cl -, Br -, I -, HSO 42-, S 2O 72-, HSO 3-, SO 32-, SO 42-, MeSO 4-, ClO 4-, ClO -, HPO 4-, H 2PO 4-, PO 43-, B 4O 72-, BF 4-, SiO 32-, NO 2-, NO 3-, HCO 3-, CO 32-, PhCOO -, CH 3PhSO 3-, PhSO 3-, RCOO -(R is H, alkyl and substituted alkyl);

    X nBe selected from-(CH 2) n-(n=1-8) ,-(CH=CH) n-(n=1-2) ,-(C 6H 4) n-(n=1-4) ,-[(CH 2) mO (CH 2) m] n-(m=1-6, n=1-4) ,-[(CH 2) mN (A 1) (CH 2) m] n-(m=1-6, n=1-4), -[(CH 2) mS (CH 2) m] n-(m=1-6, n=1-4) ,-[(CH 2) mN +(A 1) (CH 2) m] n-(m=1-6 is a pyridyl with Py n=1-4).

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