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Keywords karst water;curtain grouting;grouting water shutoff;purdah; 岩溶;帷幕灌浆;注浆堵水;防渗;
grouting water shutoff 注浆堵水
Close both the hot and cold water shutoff valves upstream nearest to the intended installation. 关闭离计划安装位置最近的上游热水和冷水的关断阀。
Newly developed water shutoff agents are colloidal dispersant gel (CDG),new precipitation-type and complex type. 新发展的堵水剂有胶体分散体冻胶、新型沉淀型和复合型等。
After 24 hours, the cobble oar that has mixed beforehand even shakedown is on the ground, planish, pat solid, go up till grout water till extensive. 24小时后，将事先拌好的石子浆均匀地铺在地面上，压平、拍实，直到水泥浆水上泛为止。
Results of application show that rate of successful seating is 100% used in fracturing, acidization and water shutoff operations. 使用表明 ,这种封隔器在压裂、酸化和堵水作业中 ,坐封成功率达 10 0%25 ,应用效果非常明显 ,并达到各项设计要求。
Water shutoff agent DSZ-A is composed of inorganic particle.Its specialities are low cost,easily flow,high strength and long valid period. 是一种无机颗粒油井堵水剂，具有成本低、可泵性好、封堵强度高、有效期长的特点。
Water shutoff agent can block up the high permeability formations when the breakthrough pressure of the agent is bigger than the pr... 应用突破压力法,不仅可以确定堵剂在地层中应放置的位置,还可以正确组合堵剂并计算堵剂的用量。
Abstract： Water shutoff agent DSZ-A is composed of inorganic particle.Its specialities are low cost,easily flow,high strength and long valid period. 摘要： DSZ-A是一种无机颗粒油井堵水剂，具有成本低、可泵性好、封堵强度高、有效期长的特点。
The water shutoff technology with solid expandable tube is a new technology to shut off water by repairing and strengthening perforated casing. 可膨胀管堵水技术是一种利用膨胀管对套管补贴以实现水层封堵的新技术。
Laws of permeation and distribution of grout water are important parts of reducing subsidence theory, it is related to safety of grouting works and long term stability of subsidence control. 离层带内浆液水的渗流与分布规律,是注浆减沉理论的重要组成部分。
Breakthrough pressure method was presented in order to accurately determine the plugging position of water shutoff agent in oil reservoir. 为了能更准确地预测堵剂在油藏中的封堵位置,提出了堵剂突破压力法。
IPCS technology was aimed at improving the effection that water shutoff and profile control enhance recovery efficiency factor. 现有的单一的调剖堵水工艺技术不能满足高含水期对改善层内、层间及平面矛盾的要求,以及动用水驱驱不到的剩余油。
A swellable polymer water shutoff agent was prepared with acrylic acid,acrylamide,organic crosslinker (MBAM)and functional ion monomer(D/S)as main materials. 针对高温高盐大孔道地层,以丙烯酸、丙烯酰胺、有机交联剂MBAM和功能性离子单体D/S为主要原料,制备了吸水膨胀型堵水剂。
These resins may be used in water shutoff profile control, pealing pipe line, dewatering of oil product and crude oil, and sewage disposal etc. in petroleum industry. 用于石油工业可作为堵水调剖、管线密封、原油成品油脱水、污水处理等。
As an isolation tool designed for downhole water shutoff in oilfield,the wedging packer consists of setting part,locking part,releasing part and sealing part. 楔入式封隔器是针对油田井下堵水而设计的一种封堵工具,由坐封、锁紧、解封和密封4部分组成。
grouting water in the ambulatory condition 动水堵水
The results of plugging test showed that water shutoff agent HY had good plugging efficiency for different permeability core,plugging rate was more than 99.90%,and the core break- through pressure grade was higher than 18.0 MPa. 聚合物堵水剂HY的封堵试验结果表明;堵水剂HY对不同渗透率的岩芯均具有很好的封堵效果;封堵率大于99.;90%25;突破压力梯度大于18
A modified cationic polyhydroxy-compound gel ling fluid as water shutoff is developed.This type of gel has better selectivity.Its field tests are descri bed and the results are satisfactory. 介绍了一种利用阳离子化改性多羟基化合物进行堵水调剖的方法，具有一定的选择性，在油田应用取得了良好效果。
Surfactants used in oil production include oil displacement agent,water shutoff agent,additives used in acidizing and fracturing,viscosity reducer by emulsification deplugging agent etc. 在采油中,表面活性剂用作驱油剂、培水剂、酸化添加剂、压裂添加剂、防蜡剂、乳化降粘剂、解堵剂等;