硅酸盐钻井液中二氧化硅有效含量快速测定方法研究  

A Method to Determine Effective SiO_2 Content in Silicate Drilling Fluid

作　　者：张妍[1] 蓝强[1] 薛玉志[1] 邱正松[2] 

机构地区：[1]胜利石油管理局钻井工艺研究院,山东东营257017 [2]中国石油大学(华东)石油工程学院,山东东营257061

出　　处：《石油钻探技术》2009年第5期39-42,共4页Petroleum Drilling Techniques

基　　金：国家高技术研究发展计划("863"计划)项目"优质无污染钻井液体系及废弃物处理技术"(编号:2006AA09Z334)资助

摘　　要：影响硅酸盐钻井液防塌性的主要因素是其SiO2含量,但目前尚无准确、有效测定硅酸盐钻井液中有效成分的方法。根据钻井现场精度高、时间短、设备少的需求,初步筛选出两种比较适合于现场应用的二氧化硅测定方法,即钼硅酸盐分光光度法和氟硅酸钾容量法,给出了两种方法的测试步骤及滤液处理方法,并对两种方法进行了对比分析。结果表明,钼硅酸盐分光光度法精度较低,但操作简单、省时,更适合于现场应用;氟硅酸钾容量法精度较高,但操作较复杂,更适合于进行室内分析应用。SiO2 content is one of the major factors affecting Sloughing resistance of silicate drilling fluid. However, up to the present, it is difficult to effectively determine the effective compounds in silicate drilling fluids. According to the field requirements, two methods to determine the silicon dioxide content in drilling fluid filtrate were provided and then their performance were analyzed. The results showed that the precision of Molybdenum Silicate Spectrophotometer Method is a little lower than the Fluorin Potassium Silicate Capacity Method, while it is more suftable for the application in-situ, and the Fluorin Potassium Silicate Capacity Method it better for laboratory analysis.

关 键 词：硅酸盐钻井液 SIO2含量 钼硅酸盐光度法 氟硅酸钾容量法 

分 类 号：TE254.1[石油与天然气工程—油气井工程]