含聚污水处理系统HPAM形貌特征及胶状产物成因  

HPAM appearance and colloidal product geneses in polymer-contained produced water treatment system

作　　者：唐洪明[1] 刘鹏[2] 黎菁[3] 徐冰青[2] 谢晓永[1] 

机构地区：[1]西南石油大学,四川成都610500 [2]中油西南油气田分公司,四川成都610051 [3]中油川庆钻探工程有限公司,四川成都610051

出　　处：《特种油气藏》2012年第2期130-134,142,共5页Special Oil & Gas Reservoirs

基　　金：国家油气重大专项"多枝导流适度出砂开采过程中储层保护技术研究"(2008ZX05024-003-04)和"海上油田注入水综合治理技术研究"(2008ZX05024-002-11)

摘　　要：利用原子力显微镜和环境扫描电镜,对污水处理流程各节点中产出的聚合物微观形貌进行观察。结果表明,油井产出聚合物为多层次立体网状结构,经过破乳剂、清水剂等药剂作用后,产出的聚合物呈线团状缠绕结构,在进一步物理化学交联作用下,大量产出聚合物析出,未被析出的聚合物分子尺寸、浓度、链段长度等大大减小。破乳剂和清水剂对产出聚合物的脱稳和絮凝作用,导致产出聚合物絮凝沉降,絮凝沉降过程中将油珠和其他悬浮物聚集,是导致大量胶状产物形成的主要原因。该项研究成果对锦州9-3油田污水处理系统的正常运行和水质稳定控制技术的研究具有重要的指导作用。The microscopic appearance of produced polymer in each node of produced water treatment process has been observed with AFM and ESEM.The results indicate that produced HPAM from oil wells presents multi-level three-dimensional network structure which turns into coil winding structure under the action of demulsifier and water clarifier.A large amount of HPAM will precipitate under further physical and chemical crosslinking action and the un-precipitated HPAM will greatly reduce in molecular weight,concentration and chain length,etc.Demulsifier and water clarifier can destabilize and flocculate HPAM,leading to flocculating and settling during which oil droplets and other suspended matter will aggregate,causing the formation of a large quantity of colloidal product.This research achievement is instructive to maintaining normal operation in produced water treatment system and controlling water quality stability for Jinzhou9-3 oilfield.

关 键 词：锦州9-3油田 污水处理系统 含聚污水 微观形貌 胶状产物 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]