摘要
水源供水井，在封井止水下艺中，始终存在封井质量、水泥固结质量及井内钻具事故等风险，为此在对准格尔旗施工的10口水源供水井施工中，制作了单向逆止阀水泥封隔器，并与Ф340套、筛管用吊卡按一定顺序下入井内。该装置的使用，有效地提高了封井止水的质量。
In water well sealing and water stopping operation, quality of sealing and cement consolidation problems and accident hazard are always existed, During the construction of 10 water wells in Jungar Banner, a one way back-pressure valve cement packer has made, and lowering withФ340mm casing and sieve tube in sequence by the use of elevator, thus effectively improved sealing and water stopping quality.
出处
《中国煤田地质》
2007年第A01期83-84,共2页
Coal Geology of China
关键词
水源井
逆止阀
水泥
封隔器
封井止水
固井
water well
back-pressure valve
cement
packer
sealing and water stopping
well consolidation
