CAJ | 학술논문

利用井筒上部套管进行开窗侧钻是解决井下复杂事故与油田老区块二次开发的常用手段，可以减少重新钻井投入的费用。要实现开窗侧钻，需要斜向器与其锚定在井筒内的工具。介绍了一种压差式锚定结构的原理与组成，并对该结构进行了分析。现场应用证明这种结构的可行性，在其他井下工具中也有较好的应用前景。
이용정통상부투관진행개창측찬시해결정하복잡사고여유전로구괴이차개발적상용수단，가이감소중신찬정투입적비용。요실현개창측찬，수요사향기여기묘정재정통내적공구。개소료일충압차식묘정결구적원리여조성，병대해결구진행료분석。현장응용증명저충결구적가행성，재기타정하공구중야유교호적응용전경。
The upper wellbore casing for sidetracking is used to solve complex accidents and oilfield old downhole block common means of secondary development,the cost of inputs re-drilling can be reduced.To achieve sidetracking needs whipstock anchored in the wellbore with the tool.A pres-sure-anchoring structure principle and structure,and the analysis of this structure are described. The practical application shows its feasibility and this structure is also in other downhole tool with good application prospect.