稠油水平井封堵调剖技术研究
发布时间：2019-06-08 14:54
【摘要】：该课题是针对我厂稠油水平井高含水问题而开展的。鉴于水平井的出水方式和机理复杂,完井方式特殊,使水平井的堵水技术较直井面临更多、更复杂的问题和挑战。因此,开展水平井堵水技术研究,对解决水平井生产面临的问题具有重要的现实意义[1-8]。本文通过对现河采油厂稠油生产区块的调研,分析了现河采油厂稠油生产存在的问题,对目前的各项堵调技术提出了改进建议;对稠油水平井现场存在的难题找到了治理措施。针对稠油水平井堵水调剖剂研究,开展了两项研究,一是作为深部堵水剂凝胶的配方研发,二是中部和封口堵水剂配方的优化。通过调研分析,决定分三个段塞,深部堵剂采用凝胶堵剂;中部堵剂采用超细水泥复合的凝胶颗粒堵剂;封口剂采用G级水泥复合的凝胶颗粒堵剂。针对封堵汽窜大孔道专门研发了水玻璃凝胶复合封窜剂,通过实验得到了强度高、耐温性好,耐老化时间长的复合堵剂配方。
[Abstract]:This subject is aimed at the problem of high water cut in heavy oil horizontal wells in our factory. In view of the complexity of outlet mode and mechanism of horizontal well and the special completion mode, the water shutoff technology of horizontal well is faced with more and more complex problems and challenges than that of straight well. Therefore, it is of great practical significance to carry out the research of horizontal well water shutoff technology to solve the problems faced by horizontal well production [1 鈮，
本文编号：2495373
[Abstract]:This subject is aimed at the problem of high water cut in heavy oil horizontal wells in our factory. In view of the complexity of outlet mode and mechanism of horizontal well and the special completion mode, the water shutoff technology of horizontal well is faced with more and more complex problems and challenges than that of straight well. Therefore, it is of great practical significance to carry out the research of horizontal well water shutoff technology to solve the problems faced by horizontal well production [1 鈮，
本文编号：2495373
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