CAJ | 학술논문

在水平井钻进过程中岩屑床的危害是巨大的，使用增大排量、倒划眼等常规的方法很难清除岩屑床。应用 Fluent 软件分别对岩屑床清除器和光钻杆的工作进行了模拟，可以详细地了解岩屑床清除器对环空流场的影响和岩屑颗粒的运动轨迹情况，显示此清除器在清除岩屑床和岩屑运移方面的能力。此种岩屑床清除器不仅增加了环空流场的紊流度，提高了局部空间的钻井液流速，具有水力清除岩屑床的作用，而且增大了岩屑颗粒被携带起来的机会。
재수평정찬진과정중암설상적위해시거대적，사용증대배량、도화안등상규적방법흔난청제암설상。응용 Fluent 연건분별대암설상청제기화광찬간적공작진행료모의，가이상세지료해암설상청제기대배공류장적영향화암설과립적운동궤적정황，현시차청제기재청제암설상화암설운이방면적능력。차충암설상청제기불부증가료배공류장적문류도，제고료국부공간적찬정액류속，구유수력청제암설상적작용，이차증대료암설과립피휴대기래적궤회。
Absttact:In the process of horizontal well drilling,the harm of cuttings bed is serious,and it is not easy to remove cuttings bed by using conventional methods such as increasing delivery capacity and back ream.The working condition of cuttings bed cleaners and light pipe respectively by using fluent is simulated in this paper.More about the influence of annular flow field and the trajecto-ries of debris particles caused by cuttings bed cleaners can be understood,showing its ability in re-moving cuttings beds and the cuttings migration.Not only does this kind of cutting bed cleaner in-crease the turbulence intensity of the annulus flow field,improve the velocity of local fluid,with the function of the hydraulic removing cuttings bed but also increase the chances of carrying up the debris particles.