
第33卷第3期 2016年5月
钻井液与完井液
DRILLINGFLUID&COMPLETIONFLUID
doi:10.3696/j.issn.1001-5620.2016.03.007
Vol.33 No.3
May2016
聚胺抑制剂的测定方法及最佳用量的确定郭建华1,马文英1,刘晓燕1,杜明军2,李保慧1,钟灵1
(1.中石化中原石油工程有限公司钻井工程技术研究院,河南濮阳457001;
2.中石化中原石油工程有限公司钻井二公司,河南濮阳457001)
郭建华等.聚胺抑制剂的测定方法及最佳用量的确定[].钻并液与完井液,2016,33(3):35-40.
摘要目前,聚胺作为一种水基钻井液用高效抑制剂得到广泛应用,但对它的研究还主要集中在抑制性评价和现场应用效果中。为此探索研究了聚胺抑制剂含量的测定方法,采用四苯硼钠法进行游离聚胺(FYZ-1)含量测定,通过对指示剂沉淀条件、滴定条件、PH值调节剂等实验条件的优化,确定了测定方法,并进行岩屑对聚胺含量影响实验。结果表明,碳质泥岩、易水化泥岩、硬脆性泥岩、砂岩对聚胺吸附依次降低,据此可以推荐聚胺在不同地层的加量并指导现场应用。
关键词聚胺;抑制剂;吸附量;岩性;测定方法
中图分类号:TE254.4
文献标识码:A
文章编号:1001-5620(2016)03-0035-06
Ployamine Shale Inhibitor Content Measurement and Determination of OptimumDosage
GUO Jianhua', MA Wenying', LIU Xiaoyan', DU Mingjun’, LI Baohui', ZHONG Ling
(1.Research Center ofEngineering Technology,Zhongyuan EngineeringCompany,Puyang,Henan 457001
2.No.2DrillingDepartmentofZhongyuanEngineeringCompany,Puyang,Henan457001)
saeaeeeeoa on polyamine were primarily focused on the inhibitive capacity and field application, and no technical specifications of polyamine have been established. A method of measuring the content of polyamine is discussed in this paper. Using the “sodium tetraphenylborate method", the content of a free polyamine, FYZ-1, was measured. The measuring method has been determined through the optimization of the testing conditions, such as indicators, precipitation conditions, titration conditions, pH values, etc. The effect of drill cuttings on the content of polyamine has also been studied. It has been founded in laboratory experiments that the quantities of the adsorbed polyamine on carbonaceous shale, hydratable shale, brittle shale and sandstone are decreasing in that order. This finding can be used to determine the concentrations of polyamine in drilling fluids in field operations
Key words Polyamine; Inhibitor; Adsorption quantity; Lithology; Measuring method
近年来,聚胺作为一种新型的抑制剂进人1聚胺抑制剂含量测定方法人们的视线,因其能满足环境保护要求,具有静电
引力、氢键作用、锚固作用和疏水作用等与其他抑制剂不同的抑制机理,且聚胺钻并液与油基钻并液性能相当,而深受重视310)。为了更好地研究应用和推广聚胺钻井液,研究了聚胺抑制剂FYZ-1的含量测定方法,采用四苯硼钠法测定游离聚胺含量,考察了不同岩性对聚胺的吸附情况,并指导现场应用,取得良好效果。
对于某种聚胺样品,其阳离子含量为定值,通过测定溶液中阳离子含量,可计算出聚胺含量。目前测定阳离子含量的化学分析方法主要有:四苯硼钠法、硝酸银沉淀法、胶体滴定法、两相滴定法和磷钨酸法。通过实验验证,确定采用终点显示明显、操作较为简便的四苯硼钠法。为了更具针对性,对四苯硼钠法的实验条件进行了优化。
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第一作者简介:郭建华,男,高级工程师,硕士研究生,1970年生,1996年毕业于西南石油学院应用化学专业,现
在主要从事管理、钻井液及防漏堵漏技术研究工作。电话(0393)4899234;E-mail:zyziygih163.com。万方数据