论文部分内容阅读
OD-701PH井是一口开发探井,在钻进直井段时,jeribe到jaddala层段地层造浆严重,井壁严重失稳,井壁坍塌甚至出现“大肚子”现象,导致井下复杂。在试油过程中由于井壁失稳、封隔器胶皮损坏等,导致了卡钻事故的发生,采用猛提、下放钻具震击等措施未解卡后,采用化学切割的方法解卡。因此,本文针对OD-701PH井卡钻事故的发生和处理进行了剖析,为该地区进行钻井、试油等施工作业降低井下复杂和预防井下事故的发生提供技术支撑,并在井下复杂事故的预防和处理上形成一定的认识和建议。
The OD-701PH well was a developed exploratory well. During the drilling of the straight well section, the formation of jeribe to the jaddala layer was severe with serious failure of the well wall and collapse of the wellbore wall and even the “big belly” phenomenon, leading to complicated underground workings. In the process of test oil due to the instability of the borehole wall, packer rubber skin damage, resulting in the occurrence of the stuck pipe accident, the use of fierce mention, down drill vibration and other measures not solve the card, the use of chemical cutting solution card. Therefore, this paper analyzes the occurrence and handling of OD-701PH card stuck accident, provides the technical support for the downhole complex accidents and downhole accidents in the areas such as drilling and test oil drilling in this area, and in the prevention of complex accidents underground And processing to form a certain understanding and advice.