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                聚丙烯╱酰胺在二次采油可以用吗?
                聚丙烯■酰胺在二次采油可以用吗?
                发布时间:2021-10-10 浏览
                聚丙烯酰胺在二次采油可以用吗?

                       聚丙烯酰胺作为油田助剂,有乳液型和固体两种形态,它是一种多功能添加剂.在油田钻井工艺中用于泥浆的增调剂、稳定剂和沉降絮凝制以改进ㄨ泥浆的流变性;能改进悬浮颗粒的大小,提高悬浮力,加速原油的过滤、分离。作为土壤结构成型剂,使井壁表面抗←冲击性能提高,钻井通过启层时使不易分散的液浆获得优质的分离效果。使部分水解均聚丙烯酰胺与甲醛、乙二醛等发生羟甲基化反应Ψ而生成侧链含甲基的产物,在原油生产中可获得满意的效果。

                       在二次采油时将聚丙烯酰胺PAM注人盐水中,能够有效提高→盐水的喷射能力,从多孔的岩石表面有效地将原油萃取下来。在水~油乳液中加人聚丙烯酰胺PAM,可明显地降低乳液的粘度。加人←贮油池内,可降低油池表面的含水量,降↓低采用成本。油田助剂的种类很多,聚丙烯酰胺PAM与⊙聚丙烯酸钾K-PAM都可以称作油田助剂,但是两者是两种不同的油田助剂,K-PAM聚丙烯酰胺钾盐中含有钾离子能够很好的抑制岩层防坍塌是油田钻井作♀业必备的油田助剂。在石油开@采中,可增加注人水的粘度,避免击穿油层,提高采油〒率。在di三次采油中用作增稠剂,增加驱油◥能力,提高油床开采效果。在油田领域♀内,更新的阴、阳离子的聚丙☆烯酰胺PAM可用于保护注人的地下水从启孔渗透并凝集回收原油,提高油井生产的经济性,控制水分向油层掺入。

                       此外,乳液型聚丙烯∮酰胺还用于压裂液添加剂、润滑剂、降阻剂等。在油田◣化学中,聚丙烯酰胺PAM是多用途的添加剂,如钻井液、洗井液、注水采油及提〓高采收率等都起着重要的作用。利用聚丙烯酰胺PAM线型大ㄨ分子结构,在湍流状态下很容易按流动方向取向成长∮线条状,抑制湍流发展。聚↘丙烯酰胺可作为降摩剂的理想材料,在原油的长距离管道输送中,加人0.lmg/L(原油量) 聚丙烯酰胺PAM,就能大大地降低原油输送阻力,从◥而降低能耗。



                英文:Can polyacrylamide be used in secondary oil recovery?
                    Polyacrylamide as oil field additives, emulsion and solid form, it is a kind of multifunctional additives. In the oil field drilling process used for mud adjustability stabilizer and sedimentation flocculation to improve the rheological properties of mud; It can improve the size of suspended particles, improve the suspension force, and accelerate the filtration and separation of crude oil. As a soil structure forming agent, it improves the impact resistance of the well wall surface, and makes the liquid slurry which is not easy to disperse get high quality separation effect when drilling through the layer. Partial hydrolyzed homopolyacrylamide reacts with formaldehyde, glyoxal and so on to produce side chain products containing methyl groups. Satisfactory results can be obtained in crude oil production.

                      Injecting polyacrylamide PAM into brine during secondary oil recovery can effectively improve the injection capacity of brine and effectively extract crude oil from the porous rock surface. Adding polyacrylamide PAM into water-oil emulsion can obviously reduce the viscosity of the emulsion. Adding the oil storage tank can reduce the water content on the surface of the oil tank and reduce the cost. There are many kinds of oil field additives, polyacrylamide PAM and polyacrylic acid potassium K-PAM can be called oil field additives, but the two are two different oil field additives, k-PAM polyacrylamide potassium salt contains potassium ions can be very good to inhibit rock formation collapse is necessary oil field additives drilling operations. In oil exploitation, it can increase the viscosity of injection water, avoid the breakdown of oil layer, and improve oil recovery rate. It is used as thickener in di tertiary oil recovery to increase oil displacement capacity and improve oil bed recovery effect. In the field of oil fields, the updated negative and cationic polyacrylamide PAM can be used to protect the groundwater injection from the hole opening infiltration and agglutination recovery of crude oil, improve the economic production of oil Wells, control water to the oil layer incorporation.



                In addition, emulsion polyacrylamide is also used as fracturing fluid additives, lubricants, resistance reducer and so on. In oilfield chemistry, polyacrylamide PAM is a versatile additive that plays an important role in drilling fluid, well flushing fluid, water injection and enhanced oil recovery. Using polyacrylamide PAM linear macromolecule structure, it is easy to grow lines according to the flow direction in turbulent state and restrain the development of turbulence. Polyacrylamide can be used as an ideal material for friction reduction agent. In the long-distance pipeline transportation of crude oil, 0. LMG /L(crude oil) polyacrylamide PAM can greatly reduce the resistance of crude oil transportation, so as to reduce energy consumption.

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