甲酸根含量测定方法研究  

Study on formic functional group content determination.

作　　者：杨俊贞[1] 黄达全[1] 张波[2] 

机构地区：[1]大港油田钻井泥浆技术服务公司 [2]辽河石油勘探局第二钻井公司

出　　处：《钻井液与完井液》2004年第5期40-42,共3页Drilling Fluid & Completion Fluid

摘　　要：为有效地控制甲酸钾的质量 ,使甲酸钠与甲酸钾的配比达到最佳 ,以便充分发挥甲酸盐钻井液体系的性能特点 ,进行了甲酸根含量测定方法的研究。介绍了甲酸盐中甲酸根含量和滤液中甲酸根含量的测试方法 ,考察了测量过程中高锰酸钾浓度和加量对结果的影响 ,并测定了室内配浆及井浆滤液甲酸根的含量 ,同时对比分析了钻井液添加剂对测量结果的影响。结果表明 ,本实验方法适用于甲酸盐处理剂及甲酸盐钻井液体系中甲酸根含量的测定 ,实验结果准确度高 ,数据稳定可靠。确定了甲酸钾技术指标为 :w(H2 O)≥ 8.0 % ;w(HCOOK) (纯度 )≥90 .0 % ;w(K+ )≥ 4 0 .0 % ;饱和盐水溶液密度≥ 1.5 5g/cm3 。In order to control potassium formic quality, detecting method of formic functional content was studied to optimize the ratio of sodium formate to potassium formate, and to make formate drilling fluid exhibits its characteristic fully. Formic functional group content in solid formate and in the filtrate of drilling fluid was introduced respectively, and influences of KMnO 4 concentration and addition on the determination were studied. In addition, formic functional group content of lab fluid and field fluid filtrates were determined. At the same time, effect of drilling fluid additives on the results was also analyzed. Lab data showed that this method is suitble for determining formic group content of formate additives and formate drilling fluid with the result is liable in high accuracy. Finally, the technical index of potassium formate was determined, that is: w(H 2O)≥8.0%, w(KCOOH)(purity)>90%, w(K +)≥40.0%, density of saturated salt solution≥1.55 g/cm 3.

关 键 词：甲酸钾 滤液 甲酸钠 纯度 研究 配比 水溶液 甲酸盐钻井液体系 钻井液添加剂 饱和盐水 

分 类 号：TE254.3[石油与天然气工程—油气井工程] TQ131.13[化学工程—无机化工]