油水井井下垢样的快速化学分析与判断  

Fast chemical analysis and judgment of oil/water well scale samples

作　　者：郭鹏[1] 陶建清[1] 潘义[1] 殷玉平[1] 贺永军[1] 

机构地区：[1]中国石油化工股份有限公司江苏石油分公司试采一厂,江苏江都225265

出　　处：《复杂油气藏》2009年第1期76-78,共3页Complex Hydrocarbon Reservoirs

摘　　要：随着油田的持续开采,油井含水不断上升,井下管柱的腐蚀结垢现象日趋严重,油水井免修周期逐渐缩短。对井下垢样的快速准确判断是正确制定各项井筒处理及生产管理措施的重要保证。根据长期实践经验,提出利用酸溶、滴定等简单的定量化学分析手段,结合定性化学分析手段对井下垢样进行快速判断的方法。以一口油井内壁垢样为例,详述测试过程,得出垢样主要为腐蚀产物的结论,针对性采取井筒处理及生产维护措施后,该井延长检泵周期累计315天。With the exploitation of oil fields and oil well aquifer rising,the corrosion and scaling of downhole strings are becoming more and more serious, so workover treatment greatly increases. Judging the scale sample fast and accurately is essential to taking measures. According to long-term practical experiences,simple means of quantitative chemical analysis, such as acid-soluble, titration, combining with qualitative chemical analysis to determine underground scale samples are proposed. Taking a well＇s scale samples for example, the details of the testing process are described to draw a conclusion that scale samples were corrosion products. After many measures for wellbore and production, the extension of the well pump cycle seized a total of 315 days.

关 键 词：油水井 垢样 检测 加药 分析 

分 类 号：TE358.5[石油与天然气工程—油气田开发工程]