强粘接性堵漏技术在中原油田的应用

针对漏失通道的尺寸、形状随井内压力变化的复杂井漏，提出了“强粘接性”概念。介绍了强粘接性堵漏剂的室内试验及现场应用情况。探讨了强粘接性堵漏机理及粘接强度影响因素。现场实践证明，强粘接性堵漏与常规封堵相比，能大幅度地提高地层承压能力，并具有施工简便、成本低廉和可靠性强等特点，为今后复杂地层堵漏技术的发展提供了新的思路

Application of Strong cohesiveness Plugging Technology to Zhongyuan Oilfield

In view of the leakage of complex formations,in which the size and shape of leakage path change with the variation of borehole pressure,the concept of “Strong cohesiveness” is presented.This paper gives information about lab experiment and field application of the strong cohesiveness plugging agent.It also discusses stong cohesiveness plugging mechanism and factors that influence cohesive strength.It has been proved by field practices that compared with normal plugging,the strong cohesiveness plugging can remarkablly enhance the load bearing capacity of formations.Moreover,its operation is simple,the cost is low,and the reliability is high,providing new ideas for the development of plugging technology in complex formations.