• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The aqueous compositions containing a water-soluble polymer raising viscosity, such as polyacrylamides and polysaccharides of high molecular weight, are stabilised against thermal degradation by the addition of a lower alcohol, of an aminocarboxylic compound and of a chlorophenolic compound. Application in drilling fluids and mobility-controlling fluids for assisted oil recovery.
    公开号:SU1706392A3
    申请号:SU874202228
    申请日:1987-03-27
    公开日:1992-01-15
    发明作者:Конта Франсуа；Бутен Жан
    申请人:Рон-Пуленк Шими (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the stabilization of water-soluble polymers of high molecular weight, used as viscosity additives in the petroleum industry: in drilling fluids, in solutions for well treatment, in flushing solutions or in injected fluids with concomitant-oil production.
    The purpose of the invention is to increase the stability of the water-soluble polymer.
    The invention is illustrated by the following examples.
    Example. Prepare water of the following salinity, mg / l:
    MgCl2-6K2074,4
    CaC12. 2NgO73,4
    NaCl1096.2
    Ka Soz 3,4
    FeCli-2HzO4,2
    NaHCOj1506,9
    Distilled
    waterUp to the volume of 1 l. 1000 ppm is dissolved in this water. (P-P.m.) Polyacrylamide RHODOFL 00 IPAD 27 (manufactured by Ron-Poulenc Ships Lite Shimik), which is a copolymer of acrylamide with acrylic acid with a molecular weight (MM) of 1,000,000-tOOOOOO.
    Oxygen is removed from the solution by passing CO gas to bring the oxygen content below p.p.m.
    An aliquot portion of the solution (control) is transferred into ampoules of borosilicate glass, which are hermetically sealed on the flame (sealed) and placed in a chamber that is thermostated at 80 ° C.
    According to the invention, 0.3 wt.% Of isobutyl alcohol is added to another aliquot of the solution.
    i (L
    with co with
    Isd

    cm
    May 0 % 1, 6- trih doc enopate of sodium and 0, P1 may. Disodium triethyl pentacetate sodium and the composition undergo aging at 81 ° C in ampoules as for the control sample.
    The ampoules are periodically opened and the viscosity of the solution is measured (Brookfield viscometer1, model T.VT, supplied with the prefix UL - 6 revolutions per minute).
    Control
    16.7 mPa1, 5 mPa-s
    16.7 mPa-s
    initial
    viscosity
    after 15
    days
    Imaging-initial viscosity
    after
    6 months
    IX IU with
    Example .. Example 1 was repeated; to the solution containing 0.1 May L of the polymer RHODOFL 27, 0.6 May. isoP utilized alcohol, 0.02 May. 2, h, sodium 6-trichlorophenol and 0.01 May. 5 diethylenetrianine 16, 3 mPa17 mPa. with
    An example (comparative As a comparison, a series of extracts is implemented using the same as Example 1, and the NP contains 1000 ppm RHODOFL 001 which is added:
    sodium pentaacetate.
     Sample A: 1.0 masl ppm isobutyl alcohol
    Sample B: 0.02 wt.% 2, k, 6-trichlorophenol and sodium
    Sample C: 0.01 May L sodium diethylene triamine pentaacetate
    Sample D: 0.6 mAb of isobutyl alcohol + 0.02 mAd 2,, 6-trichloroene and sodium
    The periodically measured viscosities are as follows:

    16.7 mPa-s 20.9 mPa s, 5 mPa-s
    five
    0
    five
    Example}. Example 1 is repeated, adding 0.6 May L ppm as a stabilizing mixture. isobutyl alcohol, 0.02 w / w 2,, 6-trichlorophenol sodium and 0.005 wt.% sodium diethylene pentaacetate.
    Initial
    viscosity 16.7 mPa "s
    down later
    12 months23, P mPa-s
    8 examples 2 and 3 indicate an increase in initial viscosity, which is believed to be caused by partial hydrolysis of acrylamide functions.
    Example (comparative). As a comparison, a series of experiments are implemented using a solution identical to Example 1, nr containing 1000 ppm. RHODOFL 001 to the second one is added:
    UAP 27, to
    15 di 60 days
    -
    3J 3.5 2.5 5 2J 1.5 1.8 3 PRI me R 5- Prepare an aqueous solution containing 0.1% by weight of polysaccharide gumksantan (RHPDOFL OOD XP of the Ron-Poulenc company) Niiik), using for dilution saline water containing 100 g / l NaCl, 10 g / l CaCl1 and 10 g / l Mp, ClL.
    Gumixanton is obtained by fermentation of carbohydrates by the action of bacteria XantboiDonos. The MM of gumixantan is (1-6) -1P6.
    Removes oxygen from the solution by passing gaseous helium, then adding (6 May.1 isobutyl alcohol, 0.02 May.2; 2, 4,6-trichlorophenol sodium and 0.01 wt.% Sodium diethylene triamine pentaacetate.
    The solution is aged at 80 ° C in sealed ampoules and the viscosity is measured in the manner indicated in Example 1.
    40
    45
    6, 6

    52.0 mPa, from 39.5 mPa.s 28.5 mPa | C 25 mla. "
    50
    S5
    Initial
    viscosity
    after 8 hours 30 days 360 days
    Viscosity drops rapidly during the first days, but then it stabilizes.
    The results are identical if, in addition, 500 mg / l of Dimetridazole biocide is added to the solution modified with additives.
    Examples 6-8. The conditions described in Example 1 are repeated. However, the solutions are measured with a Brookfield viscometer ©, model LVT at Z.3. The polymer used is RHODOFL OOEFAO 27.
    The compositions tested and the viscosity of the solutions are presented in the face.
    权利要求:
    Claims (2)
    [1]
    Claim
    Composition for thickening aqueous media, including a high molecular weight water-soluble polymer, isobutyl alcohol and water, characterized in that, in order to increase the stabilization of the polymer, it contains a copolymer of acrylamide and acrylic acid or gumixantane and additional sodium diethyltriamine pentaacetate containing trichlorophenolate as a water-soluble polymer components, wt.%:
    A copolymer of acrylamide and acrylic acid or gumixantane Isobutyl alcohol Sodium diethyltriamine pentaacetate Sodium trichlorophenolate Water
    0.05-0.10
    0.25-1.0
    0.005-0.010
    0.02 The rest is up to US
    When measures
    AP 27 wt.%
    Isobutyl alcohol, wt.%
    [2]
    2,4,6 Trichlorophenate sodium, wt.%
    Diethylene triamine pentaacetate sodium, May. %
    Initial viscosity, MPa. from
    Viscosity after 6 months. mPa s
    Viscosity after 12 months MPa-s
    6 0.1 1,0 0.02 0.01 17,2 32,5 33.0 7 0.1 0.45 0.02 0.01 17,2 14.5 17.0 8 0.05 oh 25 0.02 0.01 6.7 6.0 6.0
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    同族专利:
    公开号 | 公开日
    JPS6315852A|1988-01-22|
    DE3766738D1|1991-01-31|
    TR23109A|1989-03-30|
    FI871361A|1987-09-29|
    FI871361A0|1987-03-27|
    EP0241340B1|1990-12-19|
    AU590831B2|1989-11-16|
    BR8701420A|1988-01-05|
    DK156787D0|1987-03-27|
    IN169363B|1991-10-05|
    FR2596407B1|1988-06-17|
    AT59200T|1991-01-15|
    EP0241340A1|1987-10-14|
    NO871270L|1987-09-29|
    DK156787A|1987-09-29|
    NO871270D0|1987-03-26|
    AU7071887A|1987-10-22|
    FR2596407A1|1987-10-02|
    CN87102291A|1987-10-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3288211A|1964-02-13|1966-11-29|Johnston Norris|Water flooding process|
    US3372749A|1966-04-18|1968-03-12|Mobil Oil Corp|Waterflood process employing thickened water|
    US3964972A|1970-03-02|1976-06-22|John Tinsman Patton|Modified heteropolysaccharides|
    EP0103779A3|1982-09-20|1985-01-09|John E. Oliver|Removing contaminates from a well fluid and well system|
    AU576475B2|1982-09-27|1988-09-01|Halliburton Company|Method and composition for fracturing subterranean formations|
    US4477360A|1983-06-13|1984-10-16|Halliburton Company|Method and compositions for fracturing subterranean formations|
    US4530911A|1984-05-18|1985-07-23|Shell Oil Company|Hydrodenitrification catalyst|US5149690A|1991-10-28|1992-09-22|M-I Drilling Fluids Company|Drilling fluid additive and method for inhibiting hydration|
    US5908814A|1991-10-28|1999-06-01|M-I L.L.C.|Drilling fluid additive and method for inhibiting hydration|
    US6247543B1|2000-02-11|2001-06-19|M-I Llc|Shale hydration inhibition agent and method of use|
    US6609578B2|2000-02-11|2003-08-26|Mo M-I Llc|Shale hydration inhibition agent and method of use|
    US6831043B2|2002-01-31|2004-12-14|M-I Llc|High performance water based drilling mud and method of use|
    US7084092B2|2003-08-25|2006-08-01|M-I L.L.C.|Shale hydration inhibition agent and method of use|
    JP5268231B2|2006-03-30|2013-08-21|小林製薬株式会社|Stabilizer for composition containing water-soluble polymer thickener|
    CN100349975C|2006-04-21|2007-11-21|大庆油田有限责任公司|Method for improving viscoelasticity of polyacrylamide solution|
    FR2922255B1|2007-10-12|2010-03-12|Spcm Sa|INSTALLATION FOR THE ASSISTED RECOVERY OF OIL USING WATER-SOLUBLE POLYMERS, METHOD USING THE INSTALLATION|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8604513A|FR2596407B1|1986-03-28|1986-03-28|STABILIZED AQUEOUS COMPOSITIONS OF WATER-SOLUBLE POLYMERS|
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