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Keywords cement plug;cementing technology;localizer;application; 水泥塞;固井技术;定位器;应用;
Special tool for pumping slurry and releasing plug.The ZSC-A Single Cavity Cement Plug Set can be connected with Drill pipe. 用于注水泥浆和释放胶塞的专门工具。ZSC型单塞水泥头可与钻杆连接。
The milling bit rotates during the bit drilling cement plug and the milling head cuts the edge of the plug to form cement column. 新型套铣钻头在钻塞时钻头旋转,使套铣头旋入灰塞边缘后形成灰柱,单向铣牙做圆周运动切削灰柱,实现钻塞。
But the two stage tools used to so far are mostly required to drill the rubber plug or cement plug out after the cementing job is done. 但目前所使用的双级注水泥工具固井后均需用小钻杆钻除胶塞和水泥塞，费用高、时间长。
Engineers are worried that CO2- laden brine, which is acidic, could find its way from an injection well to an abandoned well and thereupon corrode the cement plug and leak to the surface. 工程师担心充满二氧化碳而呈酸性的卤水，可能循著某种途径从注入井进入废弃油井，随后腐蚀水泥封盖而洩漏至地表。
Keywords Cement kiln;Periclase spinel brick; 方镁石-尖晶石砖;水泥窑;
Superfine cement plugging technology is an effective way to plug thief zone, to reduce water production and/or invalid water injection, and to improve oil displacement efficiency of injected water. 超细水泥封堵技术是封堵油水井高渗透层段,减少产水量或无效注水,提高注入水驱油效率的有效措施之一。
Keywords cement;MgO;direct;titration; 水泥;氧化镁;直接滴定法;
Keywords cement packer;refit plan; 水泥包装机;改装方案;
The paper develops embrasure plugging a-gent(FD-2) with high strength according to the present problem that cement plugs embrasure. 针对目前水泥浆封堵炮眼存在的问题,研制开发了不留塞高强度炮眼封堵剂FD-2。
Keywords cement;clinker from shaft kilns;pulverize; 水泥;立窑熟料;粉化;
After the formula and operation technologies of superfine cement plugging are improved, it can greatly improve the effectiveness of water plugging in Henan oilfield. 超细水泥封堵技术是封堵油水井高渗透层段,减少产水量或无效注水,提高注入水驱油效率的有效措施之一。
Meth ods 7old patients with severe osteo-porosis complicated with bone fracture were managed with internal fixation plus bone cement plugging at author s our hospital from1993Jan to2000Dec. 方法本院自1993年1月至2000年12月应用钢板、髓内针等内固定加骨水泥填塞的方法治疗严重骨疏松并发骨折的高龄患者7例。
Keywords cement;sulphate;exchanging rale;vapour/cement clinker; 水泥;硫酸盐;转化率;挥发份/水泥熟料;
Keywords Cement clinker;Decomposition of Alite;Kinetics; 水泥熟料;阿里特分解;动力学;
Keywords cement rotary kiln;spinel;doloma;microstructure;adhesion; 水泥回转窑;尖晶石;白云石;显微结构;粘着性;
Keywords cement paste;sulfate attack;silica fume;ettringite; 水泥净浆;硫酸盐侵蚀;硅灰;钙矾石;
Keywords cement mortars;sulfate attack;mineral admixtures; 水泥砂浆;硫酸盐侵蚀;矿物掺合料;
Keywords cement variety;thaumasite;sulfate attack;expansion; 水泥品种;碳硫硅酸钙;硫酸盐侵蚀;膨胀;
Keywords Cement technology Present status Development Ponderation; 水泥技术;现状;发展;思索;