塔北地区修井防漏技术室内实验研究

Lab Study on Leak Protection while Workover in Tabei District

塔北地区多数油气井在修井过程中发生修井液漏失，而且修井后油气产量并未显著提高。本文依据该区油气层特征及漏失特点，分析了修井液漏失的原因，并通过室内系统实验，研制出了一套修井防漏浆液配方且对其进行经济评价，为有效地解决该区修井过程中修井液漏失的问题奠定了基础。

Loss of workover fluid broke out in most of oil & gas well in Tabei district. Furthermore oil & gas production aren't remarkably increased after workover treatment. According to characteristics of oil & gas reservoir and loss of circulation,this paper analysed the reason of loss. By means of systematically laboratory experiments,a serious formula of loss protection fluid was developed for workover. It provides a basis for effectively solving the loss of workover fluid problems for workover jobs.