摘要
大斜度井/水平井井筒积液将增加气层回压,限制气井的产能。因此须采用排液技术将井底积液及时排出。通过广泛调研国内外大斜度气井的常用排液技术。总结出判断大斜度井/水平井是否积液的方法及各种排液采气技术适用的条件;提出了井深结构、产液特征、油套压特征、产气特征、气液比、井筒自身条件等对大斜度井/水平井排液工艺优选方法。
Gas production decreases because back pressure on gas reservoir increases for liquid accumulation in High-inclination/Horizontal gas well. In the paper, dewatering technologies for gas well were investigated. Methods for liquid accumulation identification were summarized in High-inclination/Horizontal gas well. And dewatering technologies optimization was proposed in associated with well structures, liquid producing properties, casing/tubing pressure properties, gas/liquid ratio and economic efficiency.
出处
《广东化工》
CAS
2014年第6期99-100,共2页
Guangdong Chemical Industry
关键词
气藏
大斜度井
水平井
井底积液
排液技术
gas reservoir
high-inclination/horizontal gas well
liquid accumulation
dewater technologies
