CAJ | 학술논문

　　高压注水将会引起套管内压的变化，在这些不同条件影响下，对套管、水泥环应力场、位移场的变化规律的认识将有助于我们深入理解套管损坏的机理，设计合理的注水压力界限。文章拟采用三维有限元方法，研究以上不同因素对套管、水泥环应力的影响规律，并且分别从地应力的非均匀性引起的套管应力变化规律、泥岩断层蠕变位移引起的应力变化规律以及注水引起地层吸水软化引起的应力变化规律进行研究，以加深对高压注水导致地层、套管破环机理的认识。
　　고압주수장회인기투관내압적변화，재저사불동조건영향하，대투관、수니배응력장、위이장적변화규률적인식장유조우아문심입리해투관손배적궤리，설계합리적주수압력계한。문장의채용삼유유한원방법，연구이상불동인소대투관、수니배응력적영향규률，병차분별종지응력적비균균성인기적투관응력변화규률、니암단층연변위이인기적응력변화규률이급주수인기지층흡수연화인기적응력변화규률진행연구，이가심대고압주수도치지층、투관파배궤리적인식。
High pressure water injection will cause the change of the casing pressure, in the influence of different conditions, the awareness of casing、cement sheath stress and displacement field will contribute to understanding the mechanism of casing damage, designing reasonable injection pressure boundary. This paper uses the 3-D finite element method, studying the influence of different factors on the casing stress and cement sheath stress, researching the changing regularity of casing stress with non-uniform crustal stress、mudstone fault creep displacement and water injection, deepening the understanding of the mechanism by high-pressure water injection on formation and casing damage.