井楼油田注汽井调剖参数优化设计方法研究

通过分析蒸汽吞吐的汽窜动态和汽窜方式，考虑汽窜通道内为蒸汽凝析特征，建立了窜流通道内蒸汽驱的非活塞驱替模型，依据窜通井射孔段的油层物性差异，给出了井间平均连通程度和窜通角的计算方法，并计算出窜汽量，然后由非活塞式驱替模型和汽窜动态资料确定井间窜通孔隙体积。数值模拟结果表明，调剖段塞位置处于井间之半时，调剖效果较好，调剖段塞尺寸为10％～15％汽窜孔隙体积时蒸汽波及效率基本达到最大。对L1833井进行调剖参数设计，按照深部调剖原则选取颗粒堵剂粒径，调剖剂用量为32m^3，实施调剖后注汽，对应邻井的井口温度和含水率变化趋势正常，未出现汽窜现象，堵调效果较好。

Optimization design of profile control parameters for steam injection wells in Jinglou Oilfield

Non-piston steam displacement model was established based on steam channeling performance and steam condensate for steam stimulation wells. The calculation methods of cummunication degree and channeling angle of inter-well formation were proposed according to differential reservoir property, and directional steam flow rate could be obtained, The steam sweep volume and pore size could be also determined. The numerical simulation shows that the maximum steam sweep efficiency can be gotten for the profile control agent slug at a half inter-well distance and with slug size of 10% - 15 % steam sweep porous volume. The profile control parameters of L1833 well group were designed and the profile control particles diameters were selected according to deeply profile control principle, The volume of slug is 32 m^3. The changes of temperature and water cut are regular and the phenomenon of steam channeling around production wells does not occur after field application,