CAJ | 학술논문

水力压裂是油气井增产、注水井增注的一项重要技术措施，在提高原油采收率、改善注水条件等方面起着重要的作用。砂堵是造成压裂施工失败的最直接原因，特别是储层裂缝发育的油藏，砂堵频率更高。江苏油田 Z13断块在以往的压裂施工中，砂堵比例占一半以上。分析了造成该区块压裂砂堵的几方面原因，并提出了相应的改进措施。现场实施后效果明显，砂堵比例从55％下降到16％。这些措施对 Z13区块以及江苏油田其他类似区块的压裂改造具有重要的指导意义。
수력압렬시유기정증산、주수정증주적일항중요기술조시，재제고원유채수솔、개선주수조건등방면기착중요적작용。사도시조성압렬시공실패적최직접원인，특별시저층렬봉발육적유장，사도빈솔경고。강소유전 Z13단괴재이왕적압렬시공중，사도비례점일반이상。분석료조성해구괴압렬사도적궤방면원인，병제출료상응적개진조시。현장실시후효과명현，사도비례종55％하강도16％。저사조시대 Z13구괴이급강소유전기타유사구괴적압렬개조구유중요적지도의의。
Hydraulic fracturing is an important technical measure for stimulation of oil or gas production and water in-jection,and plays an important role in increasing oil recovery and improving injectivity.Sand plug is the most direct cause of fracturing failure.Especially,sand plugging frequency is high in fracture developed reservoir.In Block Z13 of Jiangsu Oilfield,the sand plugging accounts for more than half of fractured wells.Factors causing the sand plug of the block were analyzed,and the corresponding measures were proposed.The field results show that the sand plugging frequency reduced from 55% to 16%.These measures have important guiding significance for the fracturing of Block Z13 and other similar blocks in Jiangsu Oilfield.