摘要
在水平井的钻井过程中,泥浆的漏失会在近井地带形成一个环形的污染带,使污染带的渗透率降低。通过室内实验结合理论推导,结合中海油番禺气田实际,给出了水平井泥浆污染带的侵入表皮系数计算方法,并得到了侵入表皮系数与泥浆累积滤失时间的关系,从而在评价水平井产能方面提供了技术支持。
In the drilling process of the horizontal well, the drilling fluid loss will form an annular contaminatedzone in the near-wellbore area, which reduces the permeability of the near-wellbore area. In this paper, the cal-culation method of the invading skin factor of the annular contaminated zone in the horizontal well is given bycombining the laboratory experiment with the theory and the actual situation of the CNOOC Panyu gas field, andthe relationship between the invading skin factor and the accumulated time of the mud loss is obtained. Thus pro-viding technical support in evaluating horizontal well productivity.
出处
《新疆石油天然气》
CAS
2017年第4期33-36,共4页
Xinjiang Oil & Gas
关键词
侵入表皮系数
污染半径
泥浆
滤失速度
水平井
Invading skin factor
Radius of contamination
Drilling fluid
Filtration rate
Horizontal Well
