CAJ | 학술논문

针对深井、斜井、水平井打捞作业中遇到的复杂解卡问题，对打捞工况进行了震击力学研究。基于弹性理论与动力学理论相结合的方法对打捞震击器震击力进行分析，推导出震击力计算公式。通过实例计算，建立函数关系分析了大钩拉力载荷、钻柱弹性伸长量、震击器上部悬重和震击器行程对震击力的影响，为打捞震击器的结构设计和现场应用提供参考。
침대심정、사정、수평정타로작업중우도적복잡해잡문제，대타로공황진행료진격역학연구。기우탄성이론여동역학이론상결합적방법대타로진격기진격력진행분석，추도출진격력계산공식。통과실례계산，건립함수관계분석료대구랍력재하、찬주탄성신장량、진격기상부현중화진격기행정대진격력적영향，위타로진격기적결구설계화현장응용제공삼고。
For the complex stuck-freeing problem in deep wells,deviated wells,horizontal wells, shock force is researched.Based on the elastic theory and dynamics theory,the impact delivered by fishing jar is verified by using model analysis.The calculation formula of the impact force is de-duced.Through example calculation and diagram analysis,the impact force of the fishing jar is effected by the overpull of the hook,the elastic elongation of the drill string,the available slack-off weight above the fishing jar and the stroke of the fishing Jar,which provides an important ref-erence value for design and placement.