填砂,sand filling
1)sand filling填砂
1.The paper proves the advantage of evaluatingsand filling compactness by reinforcement penetration method and makes the contrast test of reinforcement penetration and ring sampler method so as to discover the method for determining the relation between dry density and reinforcement penetration ofsand filling.论证了采用钢筋贯入法评定填砂密实度的优点;对钢筋贯入度和环刀法进行对比试验,找到了确定填砂的干密度和钢筋贯入度之间关系的方法,使采用钢筋贯入度试验检测砂的密实度时,评定结果更为科学。
2.Adoptingsand filling embankment in areas rich in coarse sand and medium sand can save a lot of arable land,reduce machine-team greatly,at the same time,the technical indexes of embankment can meet the specifications,and the construction period is also less affected by wet weather,so it is of great practicability.在中、粗砂资源丰富的地区采用填砂路堤,既能节约大量耕地,大大减少机械台班,同时路堤各项技术指标又能满足规范要求,且施工工期受阴雨天气的影响也较小,具有很强的实用性。
英文短句/例句
1.adsorptive sandpack吸附性好的充填砂样
2.Study on Bearing Behavior of Ribbed and Sand-filled Prestressed Tube Pile;带肋填砂预应力管桩承载性能的研究
3.An Attempt on the Application of the Mathematical Statistics in Coal Mining Industry The determination of the capacity of sand bin in hydraulic filling at the Sin Wen Mine)数理统计在煤炭工业应用的尝试——(新汶水砂充填砂仓容量的确定)
4.made of packed earth or gravel.填满了泥土或砂砾的。
5.sand-packed tube displacement砂粒填充管驱替试验
6.multiple squeeze slurry pack technique多次挤压砂浆充填技术
7.partially sand packed perforation地层砂部分充填的炮眼
8.double pot gravel pack mixing unit砾石充填双罐混砂装置
9.batch-type slurry packing unit分批混合砂浆充填泵车
10.The channel is filled with noncompactible sand, or with sand and gravel.水道内由不可压实的砂或砂砾物质充填。
11.The Research of Sand Control Technology by Expandable Pre-graved Screen;可膨胀预充填防砂筛管及防砂机理研究
12.Burn off the old paint, fill any cracks in the woodwork, and rub down well with sandpaper.烧去原来的漆,用填料填满木缝,再用砂纸擦光。
13.Local Test Study of Vibroflotation on Hydraulic Backfilled Silty and Fine Sand without Additional Backfill Materials无填料振冲法加固吹填粉细砂现场试验研究
14.median pack-to-formaton grainsize ratio充填砾石与地层砂粒度中值比
15.viscous carrier placed pack用高粘携砂液作业的砾石充填
16.pack-to-formation median grain size ratio充填物与地层砂粒度中值比
17.The channel sand is not of the cut-and-fill type.水道砂岩不是切割--充填类型的。
18.This channel is filled with cross-bedded sandstone.该河边充填着具交错层理的砂岩。
相关短句/例句
filler sand填砂,背砂
3)manganese sand media锰砂填料
4)sandpack model填砂模型
1.Through linearsandpack model and transparent micromodel experiment,this paper studies migration rules of weak gel in porous media and general characteristics of EOR.通过线性填砂模型和透明微观模型实验,研究了弱凝胶在多孔介质中的运移规律和提高采收率的一般特性。
5)Tailings Backfilling尾砂充填
1.Experimental Study on the Proportion ofTailings Backfilling Pulp;尾砂充填料浆的配合比试验研究
6)unconsolidated sand pack填砂管
1.The different(characteristics) of the chemical reactions inunconsolidated sand packs of the two acid systems were observed as well as their acidizing effects in cores.采用盐容忍度较宽(0~120 g/L)的微乳酸(O/W)体系,考察N80钢片、岩心砂分别在土酸及土酸微乳液中的化学反应,研究这2种不同的酸液体系在填砂管中的渗流、化学反应特征以及在天然岩心中的酸化效果。
延伸阅读
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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