中国石油网消息：5月16日获悉，中油海工公司自主研发的“一种固井用界面增强材料及其制备方法”获国家发明专利授权。这项突破标志着中油海工在固井界面密封功能材料领域的技术实力进一步增强。

China Oil News: On May 16th, it was learned that the "A type cementing interface enhancing material and its preparation method" independently developed by China Oil Offshore Engineering Company has been granted a national invention patent. This breakthrough indicates that China Oil Offshore Engineering Company's technical strength in the field of cementing interface sealing functional materials has further improved.

长期以来，复杂井筒条件下井壁残留的油基钻井液导致界面胶结质量差、水泥石本体强度下降，成为制约固井质量提升的关键技术瓶颈。

For a long time, the residual oil-based drilling fluid in the wellbore under complex wellbore conditions has led to poor interface bonding quality and decreased strength of the cement stone, becoming a key technical bottleneck that hinders the improvement of cementing quality.

针对这一行业难题，中油海工通过刚性、柔性与功能单体的协同组合，成功研发出一种兼具优异吸油性能与高机械强度的固井界面增强材料，填补了国内相关领域技术空白。

In response to this industry challenge, China Oil Offshore Engineering has successfully developed a cementing interface enhancement material through the coordinated combination of rigid, flexible and functional components. This material possesses excellent oil absorption performance and high mechanical strength, filling the technological gap in this field in China.

据了解，该材料可高效吸附并分散井壁残留油相，确保水泥浆正常水化，并显著改善水泥石孔隙结构，抑制界面微环隙的产生，使总孔隙度降低65%以上。

It is known that this material can efficiently adsorb and disperse the residual oil phase on the well wall, ensuring the normal hydration of the cement slurry, significantly improving the pore structure of the cement stone, inhibiting the formation of interface micro-cavities, and reducing the total porosity by more than 65%.

同时，该材料可将含油界面的胶结强度提升40%以上，从而有力保障水泥环的长期密封完整性。目前，该材料已在吉林油田、新疆油田等成功应用，有效提升了油基钻井液条件下的堵漏成功率和界面胶结质量。

Meanwhile, this material can increase the bonding strength of the oil-containing interface by more than 40%, thereby effectively ensuring the long-term sealing integrity of the cement ring. Currently, this material has been successfully applied in oil fields such as Jilin Oilfield and Xinjiang Oilfield, significantly improving the leak sealing success rate and interface bonding quality under oil-based drilling fluid conditions.

该专利的获得，是中油海工坚持自主研发、深耕固井核心材料的又一重要成果，彰显了公司在固井外加剂领域解决复杂工程难题的创新能力。

The acquisition of this patent is another significant achievement for China Oil Offshore Engineering in its commitment to independent research and development and in its deep exploration of core materials for well cementing. It demonstrates the company's innovative ability in solving complex engineering problems in the field of well cement additives.