CAJ | 학술논문

苏里格小井眼水平井钻井中使用?88.9 mm 钻具出现“两小一高”（排量小、扭矩小、压耗高）的问题，使得螺杆在水平段钻进中动力不足，影响了提速提效。通过 API REG 7G 计算了钻杆管体的抗扭强度，通过有限元软件分析了接头尺寸与抗扭性能的关系，并根据特殊钻井工艺参数对 API 钻具接头扣型的要求，提出使用双台肩接头，解决了苏里格水平井钻井中无法在?177.8 mm 技术套管内使用?101.6 mm 钻具的技术难题，实现了钻井过程中的大排量、高螺杆输出扭矩、低循环压耗，满足了苏里格小井眼水平井钻井的需要。
소리격소정안수평정찬정중사용?88.9 mm 찬구출현“량소일고”（배량소、뉴구소、압모고）적문제，사득라간재수평단찬진중동력불족，영향료제속제효。통과 API REG 7G 계산료찬간관체적항뉴강도，통과유한원연건분석료접두척촌여항뉴성능적관계，병근거특수찬정공예삼수대 API 찬구접두구형적요구，제출사용쌍태견접두，해결료소리격수평정찬정중무법재?177.8 mm 기술투관내사용?101.6 mm 찬구적기술난제，실현료찬정과정중적대배량、고라간수출뉴구、저순배압모，만족료소리격소정안수평정찬정적수요。
The use of ?88.9 mm drilling tool in slim hole horizontal well in Sulige Oilfield has the problem of small flow rate, small torque and high pressure drop, causing the screw to be short of power when drilling the horizontal section, hence affecting the ROP and efficiency of horizontal well in Sulige Oilfield. The torque resistance of drillpipe body was calculated as per API REG 7G standard and the relation between connection size and torque performance was analyzed by finite element software, and the use of double-shoulder connection was proposed according to the requirement of special well drilling parameters for API tool connection, so the technical dif-ficulty was solved that the ?101.6 mm drilling tool could not be used in ?177.8 mm intermediate casing while drilling the horizontal well in Sulige Oilfield, realizing large flow rate, high pump pressure and low circulation pressure loss during drilling and also satisfying the drilling of slim hole horizontal well in Sulige Oilfield.