封堵材料结构对重复漏失影响研究进展  

Progress in the influence of plugging material structure on repeated loss

作　　者：贺心怡 卢福伟 王雨晗 秦云珊 王腾飞[1,2] 张颖 HE Xinyi;LU Fuwei;WANG Yuhan;QIN Yunshan;WANG Tengfei;ZHANG Ying(College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou 434023,China;Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields,Yangtze University,Jingzhou 434023,China)

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]长江大学油气田清洁生产与污染物控制湖北省工程研究中心,湖北荆州434023

出　　处：《应用化工》2025年第1期198-202,共5页Applied Chemical Industry

基　　金：国家自然科学基金项目(52274029);国家科技重大专项(2017ZX05049003-007);国家自然科学基金青年基金(42202182)。

摘　　要：综述了压敏型、疏水成膜型和功能胶结型三种结构的封堵剂对井壁稳定的影响。从材料结构看,压敏型、疏水成膜型两类封堵材料通过压差作用在井壁孔缝处形成致密封堵层,阻止钻井流体对井壁的水化侵蚀,有效防止井壁坍塌。因地质或施工条件引起地层压力变化时,压敏型和疏水成膜型封堵剂易从地层返吐至钻井液中,造成重复漏失。功能胶结封堵材料是通过高温熔融变形、黏结架桥、固化或黏附等方式滞留在井壁漏失通道中,对压差不敏感。功能胶结类封堵剂在井壁形成封堵层后呼吸效应明显减弱,可有效提高钻井过程中的井壁稳定。The review summarizes the effects of three types of plugging agents—pressure-sensitive,hydrophobic film-forming,and functional cementing on wellbore stability.From a material structure perspective,pressure-sensitive and hydrophobic film-forming plugging materials form a dense sealing layer at wellbore pores and fractures through differential pressure,preventing hydration erosion of the wellbore by drilling fluids and effectively avoiding wellbore collapse.However,when formation pressure fluctuates due to geological or operational conditions,the pressure-sensitive and hydrophobic film-forming plugging agents are easy to reflux from the formation to the drilling fluid.Functional cementing plugging materials,on the other hand,remain in the wellbore leakage channels through high-temperature melting deformation,adhesive bridging,curing,or adhesion,and are less sensitive to pressure differentials.After forming a sealing layer on the wellbore,functional cementing plugging agents significantly reduce the“breathing effect,”effectively enhancing wellbore stability during drilling operations.

关 键 词：井壁稳定 重复漏失 压敏封堵剂 疏水成膜封堵剂 功能胶结封堵剂 

分 类 号：TQ514[化学工程]