CAJ | 학술논문

重复压裂裂缝起裂和延伸机理是重复压裂研究的重点和难点,初次人工裂缝和生产诱导是应力变化的两个主要原因。研究引起垂直裂缝井重复压裂前原地应力场变化的主要因素,认为重复压裂应优先选择有潜力的未动用小层进行补孔压裂,设计时应充分考虑裂缝的长度及导流能力,以获得更大的泄油面积,使老井获得更好的增产效果。
중복압렬렬봉기렬화연신궤리시중복압렬연구적중점화난점,초차인공렬봉화생산유도시응력변화적량개주요원인。연구인기수직렬봉정중복압렬전원지응력장변화적주요인소,인위중복압렬응우선선택유잠력적미동용소층진행보공압렬,설계시응충분고필렬봉적장도급도류능력,이획득경대적설유면적,사로정획득경호적증산효과。
The cracks and extension of refracture is the important and difficult part of the stress study.The two main reasons for stress changes are caused by cracks and production.This paper mainly researches the cause of vertical crack refracture.The design based on the principle of cracks in the length and diverting capacity can bring more oil and get more output from the old wells.