超稠油热采井整体调剖封窜技术的研究与应用

Study and Application of Integral Profile Control and Steam Plugging Technology for Thermal - recovery Oil - wells Group at Super - heavy Oil Reservoir

曙光油田曙一区馆陶组油藏具有储层物性好、生产油层厚等特性。油井进入高轮次蒸汽吞吐周期后,油层亏空严重,造成井间汽窜严重。应用高温三相泡沫调剖剂实施井组整体调剖后,封堵效果好,成本低。2003年现场实施3口井井组,截至2003年12月31日,平均单井累计增油量1447.3 t,平均油汽比由0.35上升至0.91。

Guantao reservoir in shuguang Oilfield has the features of good petro - physical properties and thick oil - production layers.Since oil - wells enter high cyclic steam stimulation,reservoir scarcity was more and more obvi- ous, which led to steam flow among oil - wells in high frequency. Local application of high - temperature - resistant foaming triphase profile control agent on wells - group had perfect effects and the cost was low. Three - oil - wells group was put into practice in 2003 .Up to 31 February 2003,the average oil - increasing amount of single well was 1 447.3 t and oil - steam ratio rose from 0.35 to 0.91.