论文部分内容阅读
河南油田井楼油田零区原油性质属特稠油,油藏埋藏浅、胶结疏松,油层纵向及平面上非均质严重,经过多轮次蒸汽吞吐后,油井间开始发生汽窜并不断加剧,由单井间窜逐渐演变为井组间的面积式汽窜,导致热效率低,经济效益差,影响产量逐年增加。2013年汽窜达到62井次。针对存在的问题,技术人员拓展思路,对零区采取了氮气辅助面积注汽工艺。具体措施为把汽窜发生频繁的部分油井作为一个井组,对汽窜中心井采取复
The properties of zero oil in Jinglou Oilfield of Henan Oilfield are of special heavy oil. The oil reservoirs are shallow buried and loosely cemented. The oil layers are non-homogeneously vertical and horizontal. After several rounds of steam huff and puff, the steam tapping starts to intensify, From single-well channeling gradually evolved into well-type gas channeling between wells, resulting in low thermal efficiency, poor economic efficiency, affecting the output increased year by year. In 2013, steam channeling reached 62 wells. For the existing problems, technical staff to expand their ideas on the zero zone has taken a nitrogen-assisted injection of steam area technology. Specific measures for the steam channeling part of the frequent wells as a well group, the steam channeling center wells take complex