Compared with vertical injection pattern horizontal injection pattern can form linear drive to put off water breakthrough improve sweep efficiency and recovery .

结果表明：与 直 井注水相比，水平井注采井网可形成线性驱动，推迟注入水突破时间、提高 波及效率、改善油藏开发效果；

Injection of saline with high salinity can reduce the oil-water viscosity ratio allow gravity restriction and equilibration and increase vertical sweep efficiency in reservoirs with reverse cycles . In high dip reservoirs injection of saline can reduce the rate of water cut increase .

注入高矿化度、高密度盐水可降低油水粘度比，发挥重力抑制平衡作用，提高反韵律油层的 纵向 波及效率，在陡构造油藏边缘注盐水可降低含水上升速度，从而改善了开发效果。

The existence of interlayer is very favorable to dilate vertical swept volume and efficiency of water drive for the positive rhythm and block rhythm reservoirs but it is unfavorable to enhance the sweep efficiency in the reverse rhythm reservoir .

隔夹层的存在有利于正韵律和块状韵律油层扩大 纵向波及体积和驱油效率，不利于提高反韵律油层的 注 水波及效率。

Start-up pressure gradient affect sweep efficiency and vertical sweep efficiency .

考虑渗流启动压力梯度对复杂断块油藏面积波及效率和 纵向 波及效率的影响研究。

Profile control mechanism played the main role in foam injection stage which expanded vertical sweep volume . The enlargement of plane sweep area mechanism dominated in the stage of water cut recovery .

注泡沫阶段主要是以调剖机理为主，在 纵向上扩大了 波及体积；含水恢复阶段以增加平面波及面积机理为主。

Verification works on vertical deflection sensitivity and horizontal sweep speed of digital oscilloscope are summarized .

总结了数字示波器 垂直偏转灵敏度和水平 扫描速度的检定工作。

By physical modeling and numerical simulation the characters of horizontal fracturing-assisted steam flooding technology and oil incremental mechanism is summarized that is using horizontal fracture to control the steam overlaying rate and delay the steam breakthrough time can be effectively enhance the vertical sweep efficiency .

通过物理模拟和数值模拟，总结出水平压裂辅助蒸汽驱技术特点和增油机理，即利用水平裂缝控制蒸汽超覆速度、推迟蒸汽突破时间，有效提高了 纵向 波及系数。