零排放处理海上油田平台含聚油泥的实验研究  

Experimental research on the zero discharge treatment of polymer-containing oily sludge on offshore oilfield platform

作　　者：胡菲菲[1] 刘晓瑜[1] 尹先清[1] 

机构地区：[1]长江大学油气资源与勘探技术教育部重点实验室,湖北荆州434023

出　　处：《环境污染与防治》2015年第9期16-19,共4页Environmental Pollution & Control

基　　金：国家科技重大专项(No.2011ZX05024-004);中海石油(中国)有限公司综合科研项目(No.CCL2012RCPS0231RSN)

摘　　要：采用热化学反应—静置分离—研磨回注工艺处理海上油田平台含聚油泥,分析了平台现场含聚油泥的组成,经热化学反应—静置分离后,含聚油泥的原油回收率〉93%,污泥残油率〈0.3%;分离污水与对应地层水、注聚液配伍性良好;利用胶体磨研磨分离污泥,在0.8-1.0mm的磨盘间隙下循环研磨10min,污泥粒径中值可从近100μm降至10μm以下;污泥质量浓度为100-500mg/L时可稳定分散于注聚液中,65℃下的稳定时间均在10h以上。该工艺可实现含聚油泥中的原油资源回收,泥水研磨后混入注聚液中回注地层,可以实现零排放。The polymer-containing oily sludge produced from offshore oilfield platform was treated by integrated process of thermal chemical reaction/separation on standing/grinding and reinjection.The composition of collected polymer-containing oily sludge samples was analyzed,results showed that the oil recovery rate〉93% and the oil content of sludge〈0.3% after treated by thermal chemical reaction and separation.The separated wastewater had a good compatibility with formation water and polymer injection fluid;the separated sludge was cyclically grinded for 10 min in gap of 0.8-1.0mm,the median diameter decreased from around 100μm to smaller than 10μm;the sludge with concentration of 100-500mg/L could dispersed in polymer-liquid stably,the stability time could reach more than 10 h at 65 ℃.This technology enables the recovery of oil resources,and realized the zero discharge by reinjection the sludge and water into stratum.

关 键 词：含聚油泥 热化学反应 静置分离 研磨回注 零排放 

分 类 号：X741[环境科学与工程—环境工程]