With further water flooding, pollutions of water flooding well continuously push and cumulate in depth of the formation, which leads to the injection capability decreasing.
随着注水开发的不断深入，注水井的污染不断向地层深部推进并在深部累积，致使注水能力下降。
This injection well perforation parameter prediction theoretical method provides a new way to improve poor formation's water absorbing capability and mitigate over fracture pressure injection.
运用此项研究得出的一套注水井射孔完井参数预测的理论方法，为提高差油层的吸水能力、减轻油层超破压注水提供了新思路。
Perforation is the last step of well completion, so injection well perforation completion has great influence on water absorbing capability.
射孔是完井工艺最后的一个环节，因此注水井射孔完井的优劣对其吸水能力的影响就显得十分重要。
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