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    • 4. 发明授权
    • Method of controlling the mobility of flows through fissures, slits or
pores
    • 控制流经裂缝,狭缝或孔隙的流动性的方法
    • US4584109A
    • 1986-04-22
    • US584648
    • 1984-02-29
    • Raimund HaasDieter OhlendorfWerner Interthal
    • Raimund HaasDieter OhlendorfWerner Interthal
    • B01F17/18C09K3/00C09K8/86E21B43/16
    • C09K8/86C09K3/00Y10S507/936
    • Method of controlling the mobility of aqueous flows through fissures, slits or pores, in particular of flooding waters in tertiary production of crude oil, wherein cationic surfactants which, on measurement of the electric birefringence with a pulsed rectangular electrical field in pure aqueous solutions, give a measurement signal, from the decrease of which a relaxation time of 0.01 .mu.s to 10 ms, in particular of 0.1 .mu.s to 2 ms, results, are added to the aqueous medium. Preferred suitable cationic compounds are those of the general formulaR.sub.1 --K.sup.+ A.sup.-in which R.sub.1 denotes C.sub.12 -C.sub.26 -alkyl or C.sub.12 -C.sub.26 -alkenyl, K.sup.+ denotes a group of the formula ##STR1## R.sub.2 denotes C.sub.1 -C.sub.3 -alkyl, preferably methyl, R'.sub.2 denotes C.sub.1 -C.sub.3 -alkyl, preferably methyl, R".sub.2 denotes C.sub.1 -C.sub.3 -alkyl, preferably methyl, or R".sub.2 denotes (CH.sub.2 CH.sub.2 O).sub.x H, where x denotes from 1 to 3, preferably 1 to 2, and A.sup.- denotes an anion of the following formulae: SCN.sup.31, R.sub.3 SO.sub.3.sup.-, where R.sub.3 is C.sub.6 -C.sub.9 -alkyl or -alkenyl and the sum of the carbon atoms in R.sub.1 and R.sub.3 should be at least 21; ##STR2## where Hal is chlorine or bromine, R.sub.4 is C.sub.1 -C.sub.5 -alkyl, C.sub.2 -C.sub.5 -alkenyl or C.sub.1 -C.sub.5 -alkoxy in positions 3, 4, 5 and 6 and R.sub.5 is hydrogen or hydroxyl in positions 2 and 3 relative to the carboxyl group, or ##STR3## where R.sub.6 is COO.sup.- or SO.sub.3.sup.- and R.sub.7 is hydrogen or methyl.
    • 控制流过裂缝,狭缝或孔隙,特别是原油三次生产中淹水的水流动性的方法,其中在纯水溶液中用脉冲矩形电场测量电双折射的阳离子表面活性剂给出 从水性介质中加入0.01μs至10ms的弛豫时间,特别是0.1μs至2ms的测量信号。 优选的合适的阳离子化合物是通式R 1 -K + A的那些,其中R 1表示C 12 -C 26 - 烷基或C 12 -C 26 - 烯基,K +表示下式的基团:R 2表示C 1 -C 3 - 烷基, 优选甲基,R'2表示C1-C3-烷基,优选甲基,R'2表示C1-C3-烷基,优选甲基,或R'2表示(CH2CH2O)xH,其中x表示1至3,优选 1〜2,A-表示下式的阴离子:SCN31,R3SO3-,其中R3为C6-C9 - 烷基或 - 烯基,R1和R3中的碳原子之和应至少为21; 其中Hal是氯或溴,R4是3,4,5和6位的C1-C5-烷基,C2-C5-烯基或C1-C5-烷氧基,R5是氢或羟基 位置2和3相对于羧基,或其中R6是COO-或SO3-,R7是氢或甲基。
    • 6. 发明授权
    • Drag reducing agents
    • 减阻剂
    • US4407321A
    • 1983-10-04
    • US173638
    • 1980-07-30
    • Hans WilskiWerner InterthalFriedrich Engelhardt
    • Hans WilskiWerner InterthalFriedrich Engelhardt
    • C08F220/56C09K3/00F17D1/16
    • C09K3/00C08F220/56F17D1/16Y02E60/34Y10T137/0391
    • Process for reducing the friction pressure drop of aqueous liquids and suspensions in turbulent or pulsating flow by adding from 1 to 1,000 ppm of linear random copolymers of the following formula I as drag reducing agents ##STR1## in which X is a Na.sup.+, K.sup.+ or NH.sub.4.sup.+ cation and Y is hydrogen or a Na.sup.+, K.sup.+ or NH.sub.4.sup.+ cation, and in which a, b, c and d represent the proportional weight ratios of the comonomers in % and a is in the range of from 30 to 98, b from 0 to 20, c from 0 to 25 and d from 0 to 45, however, wherein the sum of the portions of b and c must be at least 2, the said copolymers being obtained in the manufacturing process in the form of aqueous and dimensionally stable jellies capable of being cut, while retaining their solubility in water.
    • 通过加入1至1,000ppm的下式I的线性无规共聚物作为减阻剂,其中X为一种或多种,​​作为减阻剂,减少含水液体和悬浮液在湍流或脉动流中的摩擦压降。 Na +,K +或NH 4 +阳离子,Y是氢或Na +,K +或NH 4 +阳离子,其中a,b,c和d表示共聚单体的比例重量比,%和a在30至98的范围内 b为0〜20,c为0〜25,d为0〜45,但b,c部分之和必须至少为2,所述共聚物的制造方法为 水性和尺寸稳定的果冻,同时保持其在水中的溶解度。