摘要
苏里格气田已进入水平井整体开发模式,为减少水平井投资,同时给后期储层改造提供更多先进技术工艺,苏里格气田水平井逐渐由三开水平井向二开水平井转变,而二开水平井固井过程中留塞情况将严重影响后续施工质量和进度。详细分析了二开水平井固井的难点及改进措施、二开水平井固井留塞的原因,提出了通过优化固井工艺,优选水泥浆体系、压塞液、顶替液等措施解决二开水平井固井留塞的方法,并取得了很好的现场应用效果,丰富完善了二开水平井固井技术。
The Sulige Gas Field has entered into the stage of over development using horizontal wells.To reduce the investment of horizontal wells and provide more advanced technology for reservoir reconstruction at the late stage,the 3rd spud-in horizontal wells has been turned into the 2nd spud-in ones in Sulige Gas Field.However,the residual cementing plug would affect the quality and progress of consequent operations in the cementation of 2nd spud-in horizontal wells and reason of residual cement slugs were analyzed in detail.The difficulty and improvement measures in cementing the 2nd spud-in horizontal wells,and the reason for the residual cementing plug were analyzed.The methods including optimizing the cementing technology,selecting slurry system,slug killing fluid and displacement fluid are proposed for removing the residual slug in the cementation.The good field application effect is obtained and the cementing technology of the 2nd spud-in horizontal wells is improved by using the measures
出处
《长江大学学报（自科版）（中旬）》
CAS
2015年第2期51-54,4-5,共4页
Journal of Yangtze University(Nature Science Edition)
关键词
苏里格气田
二开水平井
固井
留塞
Sulige Gas Field
2nd spud-in horizontal well
cementation
residual cementing plug
