井口原油数字化含水分析装置研究应用

针对井口原油取样含水分析采用传统手工测定方法,存在化验时间长,人力物力消耗大,取样口原油容易外溅,造成井口环境污染等问题,研发了井口原油数字化含水分析装置,介绍了该含水分析装置的工作原理、装置构成和工作程序。通过现场实际应用表明,该装置分析时间比传统化验方法约快100倍,大幅降低了人力资源和化验耗材,可以实时监测井口原油含水率,方便快速管理采油生产,预防环境污染,取得了明显的经济效益。

单井井口原油含水异常波动因素分析与控制

本文以单井井口含水化验整个流程为线索,对井口原油含水率化验出现异常波动这一情况进行分析,通过实际情况进行总结,对不同影响因素提出不同解决方案。实践证明解决方案是有可行性的。有利于单井生产稳定时期没数据的相对稳定。

新型原油井口加热器研制成功

一种HRY-1型系列电热油器近日在哈尔滨工程大学研制成功。该产品主要用于油井的井口加热,以保证原油具有必要的流动性,也可在原油储罐出口及输油管道中继加热等场合使用。与目前普遍采用的电加热器相比,可节能30%以上。这一系统主要包括电控箱与加热炉本体两部分,可适应不同流量的油井,适应野外作业条件,采用温度上限及压力上限保护,可以在温度(或压力)超过正常值时自动切断电源,而在恢复正常值后自动接通加热电源。系统采取加热与采油同步的工作方式,停泵连锁接点可避免因误操作而造成设备损坏。

Reasons resulting in the collapsed tubing near wellhead in high pressure and high temperature deep well during well testing and measures to prevent the collapsing

Because various reasons, the tubing near wellhead was collapsed during well testing in high pressure and high temperature deep well when the outer pressure was less than collapsing strength. To find the reasons in the abnormally collapse and countermeasures, first the quality of the tubing was checked. It was founded that the collapse was not resulted from the defect of the tubing. Then, force and stress exerted in the tubing was analyzed taking XS2 well as an example. The analysis results were concluded as follows. The collapsing strength of tubing decreased due to the axial tensile, which is seriously at the upper tubing especially. During injecting, the additional axial force that was caused by the temperature effect increased the tubing near wellhead to suffer axial tensile and further reduced the collapsing strength of tubing near wellhead. Reinforcing defect, prohibiting defect tubing to trip in hole, according to the calculation to impose appropriate annular pressure, selecting size nozzle to reverse pumping and controlling the reverse pumping speed and pressure, prohibiting to be opened flow and reducing or releasing the annular pressure can prevent the well testing tubing down-hole being collapsed at the wellhead.