油田化学驱用部分水解聚丙烯酰胺环境基准值研究  

Study on the Environmental Criteria of Partially Hydrolyzed Polyacrylamide for Chemical Flooding in Oilfields

作　　者：王晓燕[1,2] 蔡明俊[1] 王贵江 李金波[4] 李小峰 严曦[1] 王伟[1] 林泽宇 WANG Xiaoyan;CAI Mingjun;WANG Guijiang;LI Jinbo;LI Xiaofeng;YAN Xi;WANG Wei;LIN Zeyu(Oil Production Technology Institute, Dagang Oilfield, PetroChina, Tianjin 300280, China;Key Laboratory of Enhanced Oil and Gas Recovery of Ministry of Education, Northeast Petroleum University, Daqing 163318, China;Safety and Environmental Technology Research Institute, PetroChina, Beijing 102206, China;School of Environment, Tsinghua University, Beijing 100084, China)

机构地区：[1]中国石油大港油田采油工艺研究院,天津300280 [2]东北石油大学提高油气采收率教育部重点实验室,黑龙江大庆163318 [3]中国石油安全环保技术研究院有限公司,北京102206 [4]清华大学环境学院,北京100084

出　　处：《石油学报（石油加工）》2022年第2期425-435,共11页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家重大科技专项(2016ZX05010-004-004);中国石油天然气股份有限公司重大科技专项(2018E-11-07)基金资助。

摘　　要：为明确油田化学驱用聚合物是否会对矿区生态环境产生影响,依据国际构建环境基准所需最低毒性数据和实验选种准则,引入部分水解聚丙烯酰胺为环境本底引物,筛选出具有大港油田矿区特征的三门八科全覆盖的环境生物毒理受试物种,开展受试物种毒性实验,构建环境基准理论数值模型。结果表明,受试物种的环境生物急/慢性毒理值比为9.98,利用物种敏感度分布曲线法推导在用聚合物(部分水解聚丙烯酰胺)对矿区急/慢性环境基准值分别为672.93、7.43 mg/L时,其急/慢性环境基准值具有很高的安全边际承受浓度,大规模应用不会对油田矿区造成较大的环境安全风险。To clarify whether the polymer used for chemical flooding in oilfields will affect the ecological environment of mining area,in accordance with the minimum toxicity data and experimental strain selection criteria required for establishing international environmental criteria,partially hydrolyzed polyacrylamide(HPAM)is introduced as the environmental background primer to screen out three phylums and eight families of environmental biotoxicological species under test,which are representative in the mining area of Dagang oilfield.Then the toxicity test on the species under test has been carried out to construct the theoretical numerical model of environmental criteria.The results show that ratio between the environmental biological acute and chronic toxicity of the species under test is 9.98.The species sensitivity distribution curve method is applied to deduce the acute/chronic environmental criteria of the mining area using the polymer(HPAM),corresponding to the values of 672.93 mg/L and 7.43 mg/L,respectively.The acute/chronic environmental criteria have a very high tolerable concentration at the safety margin,so its application on a large scale will not cause great environmental safety risks to the mining area of the oilfield.

关 键 词：化学驱 三次采油 水解聚丙烯酰胺 生物毒性 环境基准 

分 类 号：TE345[石油与天然气工程—油气田开发工程]