无固相完井液研究进展

Research Progress on Solid-free Completion Fluids

在油气田开发过程中,完井是保证油气井能够长期稳定生产的有效技术手段,而完井液则是高质量完井的关键。无固相完井液以其优越性能而备受关注。按照无固相完井液的性质特征分为:清洁盐水完井液、甲酸盐完井液、有机盐及高分子完井液、弱凝胶完井液、隐形酸完井液等。论文综述了近年来无固相完井液的研究进展和应用现状,并对未来无固相完井液的研究方向和关注热点提出了展望。

In the process of oil and gas fields development,completion well is an effective technical means to ensure long-term stable production of oil and gas wells,and completion fluid is the key to high quality completion.Solid-free completion fluids showing superior performance are the development direction of completion fluids in recent years.According to the characteristics of solid-free completion fluids,they are divided into clean brine completion fluids,formate completion fluids,organic salt and polymer completion fluids,weak gel completion fluids,and invisible acid completion fluids.The research progress and application status of solid-free completion fluids in recent years were reviewed.The direction and hotpots of solid-free phase completion fluids can provide prospects.