聚-表二元驱药剂对采出液处理工艺影响界限研究  

Study on the influence range of polymer-surfactant binary drive agents on the treatment process of produced fluid

作　　者：乔明 QIAO Ming(China Liaohe Petroleum Engineering Co.,Ltd.,Panjin 124010,China)

机构地区：[1]中油辽河工程有限公司,辽宁盘锦124010

出　　处：《石油工程建设》2023年第4期18-21,共4页Petroleum Engineering Construction

基　　金：辽河油田“辽河化学驱工程实施与调控”重大科技专项,“化学驱污水深度处理回用聚合物母液和注入液配制技术研究”课题(2021KJZX-03-08)。

摘　　要：辽河油田逐步开展了多区块、多轮次二元驱开发先导试验,随着聚合物和表面活性剂溶液的注入,采出液中聚合物和表面活性剂含量逐步提升,油、水、固三相分离难度加大,因此需要对现有原油脱水及污水处理工艺进行评价,确定二元驱采出液对原油脱水及污水处理系统的影响界限。经过室内试验评价,现有的原油脱水系统通过调整破乳剂的加药量,可以适应聚合物质量浓度小于75 mg/L的采出液脱水,现有的污水处理系统通过调整絮凝剂、混凝剂加药量,无法实现二元驱污水达标处理,需要对现有污水处理系统进行改造,以适应二元驱污水处理需求。Liaohe Oilfield has gradually carried out multi-block and multi-round binary drive development pilot tests.With the injection of polymer and surfactant solution,the concentration of polymer and surfactant in the produced fluid gradually increases,which makes the separation of oil,water,and solid phases more difficult.Therefore,it is necessary to evaluate the existing crude oil dehydration and wastewater treatment processes and determine the influence range of the produced fluid by binary drive on the crude oil dehydration and wastewater treatment systems.After the indoor test,the existing crude oil dehydration system can adapt to the dehydration of produced fluid with a polymer content of less than 75 mg/L by adjusting the dosage of emulsion breakers,and the existing wastewater treatment system fails to achieve the standard treatment of binary drive wastewater by adjusting the dosage of flocculants and coagulants.Therefore,the existing wastewater treatment system needs to be modified to adapt to the demand of binary drive wastewater treatment.

关 键 词：二元驱 原油脱水 污水处理 聚合物 表面活性剂 

分 类 号：X741[环境科学与工程—环境工程] TE357.46[石油与天然气工程—油气田开发工程]