Tech of setting cement plug by infilling Cement is to send tube, cement filling sleeve and its tools to the predictive depth by swabbing rope.
倒灰法打水泥塞工艺是利用抽汲绳将油管或专用装灰筒及倒灰工具下到预定深度,在1m范围内上提下放数次,使倒灰孔打开,实现水泥浆从油管流入井筒,同时胶塞从护套中推入套管实现地层封堵。
In the process of cementing plug, cement plug length can't control and easy to make accident, for example “fill the sausage” and “insert the flagpole”.
针对常规打水泥塞作业经常出现不易控制长度、水泥塞容易“打飞”、易出现“灌香肠”、“插旗杆”等实际问题,通过对水泥塞固井技术的研究,开发出一种新型工具—水泥塞定位器。
Combina-tion of drillable tubing conveyed bridge plug with cement plug is proposed for use in this oilfield.
提出用可钻式油管传输桥塞与水泥塞结合封堵下部高压高含水层,经3口井的现场应用表明,该工艺投资少,现场操作简单,封堵成功率高,可靠性强,且有效期长,增油降水效果显著,解决了该油田生产中下部高压高含水层的封堵难题。
During drilling cementing plug in wells located on carbonate crack reservoirs in the Tahe Oilfield, it is very difficult to complete such operation without failure because of irregular open hole diameter, extensively fractured formation, measured depth error, etc.
塔河油田碳酸盐缝洞型油藏在打水泥塞施工中,由于裸眼段井径不规则、地层缝洞发育、井深计量误差等因素影响,打水泥塞施工一次成功率很低。
Through analyzing limitation of traditional cementing plug technology in workover fields of petroleum industry,a new cementing plug without tubing string technology is developed after the experiments of mechanical bailing sand technology were successfully made.
通过分析石油行业修井作业系统传统打水泥塞施工工艺存在的技术缺陷 ,在机械捞砂工艺试验成功的基础上 ,开展无管柱打水泥塞技术的工艺研究。
With the speed-up of the development of the Tarim oilfield,the wells requiring cementing plugs are increasing.
随着塔里木油气田开发力度的不断加大,注水泥塞施工的油气井不断增多,由于井深、老井地层出现井漏、井涌并存的情况,替入浆量难以把握,施工作业中容易出现"插旗杆"或者"灌香肠"等事故,给固井施工造成较大困难。