水平井砾石充填调流控水筛管完井技术

发布时间：2018-06-12 23:17

本文选题：水平井 + 筛管完井　；参考：《石油钻探技术》2017年04期

【摘要】：针对常规水平井调流控水筛管完井存在封隔器封隔长度短、封隔段数有限和深井封隔器下入困难等技术难点,开展了水平井砾石充填调流控水筛管完井技术研究。在分析水平井砾石充填调流控水筛管完井技术原理及技术难点的基础上,分析对比不同类型调流控水筛管的优缺点,选用节流嘴式调流控水筛管或流道式调流控水筛管;根据水平井砾石充填调流控水完井的要求,优选聚合物低密度砾石作为充填砾石,并通过试验评价了砾石充填层的封隔效果,结果表明,砾石充填层可以阻止进入井筒内流体的横向流动,起到封隔器的作用;给出了砾石充填工艺,形成了水平井砾石充填调流控水完井技术。该技术在塔河油田A水平井进行了现场试验,与试验前相比,该井产油量提高了411.8%,含水率降低了13.5百分点。研究结果表明,水平井砾石充填调流控水筛管完井技术可以提高调流控水筛管的调控精度,起到稳油控水作用,具有一定的推广应用价值。
[Abstract]:In view of the technical difficulties such as the short length of Packer sealing, the limited number of sealing sections and the difficulty of entering deep well Packer in conventional horizontal well flow control sieve pipe completion, the study on the completion technology of gravel filling and water control pipe in horizontal well is carried out. Based on the analysis of the completion principle and technical difficulties of gravel filling and regulating water control sieve pipe in horizontal well, the advantages and disadvantages of different types of flow control water control sieve pipe are analyzed and compared, and the throttle nozzle type flow control water sieve pipe or the flow channel type flow control water screen pipe are selected. According to the requirement of gravel filling, flow regulation and water control completion in horizontal well, polymer low density gravel is selected as backfill gravel, and the sealing effect of gravel filling layer is evaluated through experiments. The results show that, The gravel filling layer can prevent the lateral flow of fluid into the wellbore and act as a Packer, and the gravel filling technology is presented, which forms the horizontal well gravel filling flow control and water completion technology. The technology has been tested in A horizontal well in Tahe Oilfield. Compared with before the test, the oil production of this well has been increased by 411.8% and the water cut has been reduced by 13.5%. The results show that the completion technology of gravel filling and regulating water control sieve pipe in horizontal well can improve the control precision of the regulating water control sieve pipe, play the role of stabilizing oil and controlling water, and have certain popularization and application value.
【作者单位】：中国石化石油工程技术研究院;页岩油气富集机理与有效开发国家重点实验室;中国石化西北油田分公司工程技术研究院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”课题六“海相碳酸盐岩油气井井筒关键技术(二期)”(编号:2011ZX05005-006-004)资助
【分类号】：TE257

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