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    • 1. 发明授权
    • Drilling fluids based on powdered sulfonated thermoplastic polymers
    • 基于粉末磺化热塑性聚合物的钻井液
    • US4425455A
    • 1984-01-10
    • US416945
    • 1982-09-13
    • S. Richard TurnerRobert D. LundbergThad O. WalkerDennis G. Peiffer
    • S. Richard TurnerRobert D. LundbergThad O. WalkerDennis G. Peiffer
    • C08L25/18C09K8/36C08K5/01C08K3/30C09K7/02
    • C08L25/18C09K8/36Y10S507/91
    • The present invention relates to powdered sulfonated thermoplastic polymers which function as viscosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits and lift cuttings from the holes in the drilling operation for oil and gas wells. The powdered sulfonated thermoplastic polymer has about 5 to about 100 meq. of sulfonate groups per 100 grams of the sulfonated thermoplastic polymer, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion. The powdered sulfonated thermoplastic polymers have a particle size range of 0.25 .mu.m to 2.5 .mu.m and are prepared by spray drying an emulsion of the sulfonated thermoplastic polymer which has been prepared by a free radical copolymerization process. A polar cosolvent can optionally be added to the mixture of oil drilling mud and sulfonated polymer, wherein the polar cosolvent increases the solubility of the sulfonated polymer in the oil drilling mud by decreasing the strong ionic interactions between the sulfonate groups of the sulfonated polymer.
    • 本发明涉及粉末状磺化热塑性聚合物,当添加到油基钻井泥浆中时,其作为增粘剂,其是用于在油气井的钻井操作中从孔中保持压力的液体,冷钻头和提升切屑。 粉状磺化热塑性聚合物具有约5至约100meq。 的磺酸盐基团/ 100克磺化热塑性聚合物,其中磺化基团被金属阳离子或胺或铵抗衡离子中和。 粉状磺化热塑性聚合物的粒度范围为0.25μm至2.5μm,并通过喷雾干燥已经通过自由基共聚方法制备的磺化热塑性聚合物的乳液制备。 可以任选地将极性助溶剂加入到石油钻井泥浆和磺化聚合物的混合物中,其中极性助溶剂通过降低磺化聚合物的磺酸盐基团之间的强离子相互作用而增加磺化聚合物在石油钻井泥浆中的溶解度。
    • 3. 发明授权
    • Drilling fluids based on a mixture of a sulfonated thermoplastic polymer
and a sulfonated elastomeric polymer
    • 基于磺化热塑性聚合物和磺化弹性体聚合物的混合物的钻井液体
    • US4425461A
    • 1984-01-10
    • US416936
    • 1982-09-13
    • S. Richard TurnerRobert D. LundbergWarren A. ThalerThad O. WalkerDennis G. Peiffer
    • S. Richard TurnerRobert D. LundbergWarren A. ThalerThad O. WalkerDennis G. Peiffer
    • C09K8/36C08K3/24C08L25/08C09K7/02
    • C09K8/36
    • The present invention relates to mixtures of sulfonated thermoplastic polymers and sulfonated elastomeric polymers which function as viscosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits, and lift cuttings from the holes in the drilling operation for oil and gas wells. The sulfonated thermoplastic and elastomeric polymers both have about 5 to about 200 meq. of sulfonate groups per 100 grams of the sulfonated thermoplastic or elastomeric polymers, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion. A polar cosolvent can optionally be added to the mixture of oil drilling mud and sulfonated thermoplastic and elastomeric polymers, wherein the polar cosolvent increases the solubility of the sulfonated thermoplastic and elastomeric polymer in the oil drilling mud by decreasing the strong ionic interactions between the sulfonate groups of the sulfonated polymers.
    • 本发明涉及磺化热塑性聚合物和磺化弹性体聚合物的混合物,其在添加到油基钻井泥浆中时起粘稠剂的作用,油基钻井泥浆是用于在钻井操作中从孔中保持压力的液体,冷钻头和提升切屑 用于油气井。 磺化的热塑性和弹性体聚合物都具有约5至约200meq。 每100克磺化热塑性或弹性聚合物的磺酸盐基团,其中磺化基团被金属阳离子或胺或铵的抗衡离子中和。 可以任选地将极性助溶剂加入到油钻泥浆和磺化热塑性弹性体聚合物的混合物中,其中极性助溶剂通过降低磺酸盐基团之间的强离子相互作用而增加磺化热塑性弹性体聚合物在石油钻井泥浆中的溶解度 的磺化聚合物。
    • 6. 发明授权
    • Drilling fluids based on sulfonated elastomeric polymers
    • 基于磺化弹性体聚合物的钻井液
    • US4425462A
    • 1984-01-10
    • US416937
    • 1982-09-13
    • S. Richard TurnerRobert D. LundbergThad O. Walker
    • S. Richard TurnerRobert D. LundbergThad O. Walker
    • C08F236/10C09K8/36C08K3/24C08L25/08C09K7/02
    • C08F236/10C09K8/36Y10S507/91
    • The present invention relates to sulfonated elastomeric polymers which are copolymers of isoprene and sodium styrene sulfonate or teropolymers of isoprene, styrene and sodium styrene sulfonate wherein these sulfonated polymers function as viscosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits and lift cuttings from the holes in the drilling operation for oil and gas wells. The sulfonated and elastomeric polymers have about 5 to about 100 meq. of sulfonate groups per 100 grams of the sulfonated elastomeric polymer, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion. A polar cosolvent can optionally be added to the mixture of oil drilling mud and sulfonated elastomeric polymer, wherein the polar cosolvent increases the solubility of the sulfonated elastomeric polymer in the oil drilling mud by decreasing the strong ionic interactions between the sulfonate groups of the sulfonated polymer.
    • 本发明涉及作为异戊二烯和苯乙烯磺酸钠的共聚物或异戊二烯,苯乙烯和苯乙烯磺酸钠的三元共聚物的磺化弹性体聚合物,其中这些磺化聚合物当加入到用作维持的流体的油基钻井泥浆中时用作粘稠剂 石油和天然气井的钻井操作中的孔中的压力,冷钻头和提升切屑。 磺化和弹性聚合物具有约5至约100meq。 每100克磺化弹性体聚合物的磺酸盐基团,其中磺化基团被金属阳离子或胺或铵抗衡离子中和。 可以任选地将极性助溶剂加入到油钻泥浆和磺化弹性体聚合物的混合物中,其中极性助溶剂通过降低磺化聚合物的磺酸盐基团之间的强离子相互作用而增加磺化弹性体聚合物在石油钻井泥浆中的溶解度 。