利用响应面法优化废弃钻井液破胶  

Optimization of glue breaking in waste drilling fluid using response surface methodology

作　　者：赵云天 范峥[1] 李岩[2] 同霄 刘宁[2] 刘姝延 刘艳军 ZHAO Yuntian;FAN Zheng;LI Yan;TONG Xiao;LIU Ning;LIU Shuyan;LIU Yanjun(College of Chemistry&Chemical Engineering,Xi′an Shiyou University,Xi′an 710065,Shaanxi Province,China;Oil and Gas Technology Research Institute of PetroChina Changqing Oilfield Company,Xi′an 710018,Shaanxi Province,China;College of Nature Resources and Environment,Northwest A&F University,Xianyang 712199,Shaanxi Province,China;HuaLu Engineering&Technology Co.,Ltd.,Xi′an 710065,Shaanxi Province,China)

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]中国石油长庆油田分公司油气工艺研究院,陕西西安710018 [3]西北农林科技大学资源环境学院,陕西咸阳712199 [4]华陆工程科技有限责任公司,陕西西安710065

出　　处：《化学工程》2024年第6期89-94,共6页Chemical Engineering(China)

基　　金：中国国家留学基金资助项目(201908610135);西安石油大学研究生创新与实践能力培养项目(YCS23214223)。

摘　　要：针对废弃水基钻井液破胶难、回用难且存在二次污染等问题,开展废弃水基钻井液破胶过程的优化。基于对废弃水基钻井液的性能分析,采用单因素试验对复合破胶剂破胶过程中各因素的影响规律进行研究,借助响应面法对破胶过程的显著性影响因素进行深度优化。结果表明:废弃水基钻井液的工作性能无法满足油田作业区规定的指标要求,必须对其进行破胶回用处理;当破胶剂加入量为3.97 kg/m^(3)废弃水基钻井液,反应温度为51℃,搅拌速度为419 r/min时,废弃水基钻井液破胶出水率的预测最优值(体积分数)可达62.37%,经t检验,预测最优值和实验验证值之间不存在显著差异。该研究可为深层复杂钻井液的无害化处理提供准确可靠的理论依据和数据来源。The optimization of the breaking process of waste water-based drilling fluid was carried out in view of the problems such as the difficulty of breaking,reuse and secondary pollution of waste water-based drilling fluid.Based on the analysis of the performance of waste water-based drilling fluid,the influence law of each factor in the breaking process of composite breaker was investigated by single factor experiment,and the significant influencing factors of the breaking process were optimized in depth by response surface methodology.The results show that the performance of waste water-based drilling fluid is far from meeting the stipulated indicator requirements of the oilfield operation area,and it must be broken and reused.When the addition amount of XSD is 3.97 kg/m^(3)waste water-based drilling fluid,the reaction temperature is 51℃,and the mixing speed is 419 r/min,the predicted optimal value of the breakthrough rate of waste water-based drilling fluid is up to 62.37%.There is insignificant difference between the predicted optimal value and the experimentally validated value by student′s t test.The result provides an accurate and reliable theoretical basis and data source for the harmless treatment of deep and complex drilling fluids.

关 键 词：废弃钻井液 破胶剂 响应面 无害化处理 

分 类 号：TE254[石油与天然气工程—油气井工程]