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1)  Whole tailings
全尾砂
1.
This paper introduces dewatering test and flocculants test of belt vacuum filter in whole tailings dewatering.
介绍了带式过滤机全尾砂脱水试验、加入絮凝剂的试验 ,并对带式过滤机与园盘过滤机进行比较。
2)  Full tailings
全尾砂
1.
An expenimental study on desulfurization gypsum cementing full tailings has been conducted to solve the technical problems of cementing and dewatering tailings,and the filling cost would have been lowered,too.
针对尾砂的胶结和脱水的技术难题,以工业烟气脱硫石膏作为胶结剂,进行了全尾砂充填的试验研究。
2.
Cementing filling of full tailings, in place of coarse classified tailings, in Jiaojiagold mine can meet the needs for the strength of cementing filling body in mining.
在焦家金矿使用全尾砂代替分级粗尾砂进行胶结充填,可以满足矿石回采时对胶结充填体强度的要来。
3.
In order for solving the problems of the low backfilling density,low cemented filling strength,of the original backfilling system,and the fine fraction tailings neither coming into the stope nor being allowed to be discharged into the ground environment in Nanjing Lead-zinc-silver Mine,the full tailings cemented filling technology is investigated and full tailings backfilling is realized.
针对南京铅锌银矿原有充填系统充填浓度低、胶结充填强度低、细粒级尾砂无法进入采场,且地表环境不允许尾砂排放的问题,开展了全尾砂胶结充填技术研究,实现了全尾砂充填。
3)  all tailings
全尾砂
1.
Experimental study on all tailings flocculation settiling in Dahongshan cooper mine;
大红山铜矿全尾砂絮凝沉降的试验研究
2.
This paper describes a new technology of all tailings solidfying filling transported in single pipe by its gravity flow in a gold mine.
本文介绍了一种岩金矿山全尾砂单管路自流输送胶固充填新工艺。
3.
Dongguashan copper deposit buried in the surface depth of 1000 meters,complex tectonic stress of mine region,belong to the height stress distribution region,a big empty field later cemented all tailings fill mining.
冬瓜山铜矿床埋藏距地表深达1000m,矿区构造应力复杂,属高地应力分布区域,采用大空场嗣后全尾砂胶结充填法开采。
4)  Tailings [英]['teiliŋ]  [美]['telɪŋ]
全尾砂
1.
The filling material based on high water quick setting ferroaluminate cement(HWQSFC) and tailings was a sort of new filling material used in mines.
铁铝型高水速凝全尾砂充填材料是一种以铁铝型高水速凝材料为胶凝材料的新型充填材料。
5)  unsized tailing
全尾砂
1.
Study on application of the method of unsized tailing consolidated fill with allwater quicksetting cementing materials;
全尾砂全水速凝胶结充填法的应用研究
2.
Experimental study on system of filling mined bed with bulk unsized tailing and consolidating it with polyhydrite materials in Lingshan Gold Mine;
灵山金矿散体全尾砂高水充填系统试验研究
6)  gob hydraulic fill
全尾砂充填
1.
The accident had occurred unexpectedly that the tailings outpoured from the gab during the gob hydraulic fill in Dongguashan copper mine.
冬瓜山铜矿东山采空区全尾砂充填过程中,发生尾砂泄漏事故,经事故原因分析,查处尾砂泄漏点,采用高压旋喷注浆技术堵水,结果表明治理效果很好。
补充资料:油井防砂和清砂
      对疏松油层进行层内胶固,在井筒内下筛管防止油层砂进入井内,以保证油井、注水井的正常生产,称防砂。
  
  防砂 胶结疏松的砂岩颗粒随油、水进入井筒或携带至地面,会冲蚀、磨损、堵塞深井泵和管线以及地面设备,或沉积于井底,堵塞油层,使油井减产或停产;甚至油层坍塌,挤毁套管,导致油井大修或报废。采油时应根据生产动态、砂样分析及声波测井等资料,及时了解出砂原因、层位及性质,采取有效的防砂措施。防砂措施有筛管滤网和化学胶固两类,前者适用于各种完井方式,应用较广,后者主要用在套管射孔完成的井。通过试油、试采已证实出砂的油层,应考虑防砂完井。
  
  筛管滤网防砂 也称机械防砂,将多缝筛管固定在带孔的钢管上,下至出砂层段并用携砂液将一定粒径的砂粒循环填充于筛管外,靠管外砂粒所形成的桥拱,滤阻油层出砂。对油层单一、无水、气夹层的井,可采用先期防砂。即油层部分用扩眼钻头扩眼后,再下入筛管填砂(见图)。对多层合采或有水、气夹层的井,用射孔完井。清洗套管和炮眼后,再在套管内下筛管填砂。筛管的结构,从割缝到外包金属网或预填砾石,发展到用有机或无机材料预制滤管。目前多用梯形截面的不锈钢丝点焊成强度高、渗滤面大、耐腐蚀的金属绕丝滤管。此法要求根据砂样粒度分析资料,选定筛管缝宽及填入砂粒的直径。
  
  
  化学防砂 向出砂油层注入一定量的化学胶结剂,将油层砂子胶固在一起。常用的胶结剂有树脂类(如酚醛树脂、环氧树脂等),有时也用水泥类材料。要求胶结剂在固结时体积收缩,或加入增孔剂,造成一定的渗透性,以尽量减少对产量的影响。对已经大量出砂的油层,用下列方法形成有渗透性的人工井壁:①将砂与胶结剂按比例混合后,挤入地层;②预先向出砂层填砂,再将原料如甲醛和苯酚以及固化剂按序挤入地层,在地层条件下合成树脂;③石英砂外包一层树脂,在未完全固化前挤入地层,在油层温度条件下固化;④用N2作载体把SiCl4蒸气引入油层,使之分解,析出的Si对疏松砂子起胶结作用。化学防砂的优点是可用于同井多油层防砂,不缩小井眼;缺点是成本较高,易降低出砂层的生产能力,对于油井先期防砂或注水井防砂,效果较好。
  
  清砂 清除井底沉砂,一般下入油管,用洗井液循环冲洗,带出地面。炮眼内积砂,用专门的洗井封隔器分段冲洗。井下深井泵等设备内的积砂,须将设备起出地面,检查清理。
  
  

参考书目
   T. O. Allen & A.P.Roberts, Production Opera- tions,Vol.2,2nd ed.,Oil & Gas Consultants Inter-national,Tulsa,1982.
  

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