Stablesmart appendix

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The composition of claim 10, wherein the tertiary crosslinker is phenol and formaldehdye. Figure 9 shows a plot of RF versus PV for the injection of 0. One means of further improving recover is to block thief zones with a polymer or other material, thus forcing water through the less porous regions. EP Kind code of ref document: However, there are many phenolic substitutes that can be used in the tertiary crosslinker, including phenyl acetate, aspirin, furfurylalcohol, salicyl alcohol, resorcinol, and formaldehyde can be substituted by hexamethylenetetramine.

  • WOA1 Crosslinked swellable polymer Google Patents

  • APPENDIX IV. STATUTORY Companies Act is set out in Appendix III to this prospectus. 2. Changes . A safe and stable Smart.

    Utility model. APPENDIX A: CONTRIBUTORS. Table Future Goals and Capabilities for an Efficient, Reliable, Secure, and Stable Smart Grid. Table Prioritized. The proof is presented in Appendix A.

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    Given these stable SMART models based on physical connections in the macaque brain, we.
    The method of claim 19, wherein the unreacted tertiary crosslinker is injected into the subterranean formation after expansion of the polymer particle.

    Acrylamide is more preferred. To remedy the short longevity of the polymer treatment, Slim Tube 2 was treated with 0. A particularly important use is as drilling fluid in petroleum production, especially in enhanced oil recovery EOR applications.

    The method of claim 19, wherein the polymeric particle comprises a copolymer of acrylamide and sodium 2-acrylamidomethylpropane sulfonate, the stable crosslinker comprises methylene bisacrylamide, the labile crosslinker comprises a polyethlene glycol diacrylate, and the tertiary crosslinker comprises phenol and formaldehyde.

    For example, it may gel at a specific temperature or pressure. The composition of claim 10, wherein the expandable polymeric microparticles comprise a copolymer of acrylamide and sodium 2-acrylamidomethylpropane sulfonate, the stable crosslinker comprises methylene bisacrylamide, and the labile crosslinker comprises a polyethlene glycol diacrylate.

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    Stablesmart appendix
    The composition of claim 10, wherein the tertiary crosslinker is selected from a combination of phenol, phenyl acetate, aspirin, furfuryl alcohol, salicyl alcohol, or resorcinol and formaldehyde or hexamethylenetetramine.

    At the same time the content of one ampoule was used to determine the viscosity and extent of polymer popping. Thus, temperature and pH can affect the rate of gelation, as needed for a particular application.

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    These low viscosity water-like micro-particle solutions are injected into the thief zones of the reservoirs with very little pressure requirement for penetration. To obtain sizes in the range of about 0. The composition of claim 1 wherein expandable polymeric particles comprises polyacrylamide.

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    A particularly important use is as drilling fluid in petroleum production, especially in enhanced oil recovery EOR applications.

    Detailed in this appendix are some commonly used methods for protein analysis, e.g., 6] require less time to discover, but are not as thermally stable. Smart. Appendix C. Smart metering in Queensland remote feasible unless a distributor has established a stable smart metering technological.

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    Cholangiocarcinoma · Appendix Carcinoid · Appendix Carcinoma.
    A particularly useful tertiary crosslinker for reservoir sweeping is phenol and formaldehyde, because the gels produced by this crosslinker are tolerant to the harsh conditions common to deeper reservoirs. Residual Resistance Factor versus pore volume following the injection of 0. Such smart gels have particular utility in sweeping reservoirs, but many uses are possible.

    WOA1 Crosslinked swellable polymer Google Patents

    Further, in certain soil and spillage applications, the size can be up to a cm, though more preferably may be mm. Figure 1 shows a schematic diagram of the slim tube prior to coiling.

    A composition comprising expandable polymeric particles having labile crosslinkers and stable crosslinkers, said particle combined with a fluid and an unreacted tertiary crosslinker that is capable of further crosslinking the particle on degradation of the labile crosslinker so as to form a stable gel.

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    Furthermore, RRF values in all sections dropped to about 1 in about 0.

    The composition of claim 1, wherein the expandable polymeric particles comprise a copolymer of acrylamide and sodium 2-acrylamidomethylpropane sulfonate, the stable crosslinker comprises methylene bisacrylamide, and the labile crosslinker comprises a polyethlene glycol diacrylate.

    RF versus aging time for Slim Tube 2 initially at 7. Synthetic crosslinked copolymer solutions and direct injection to subterranean oil and gas formations. Figure 4 shows a plot of RRF values for sections of the slim tube versus the pore volume of water injected.