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石英-高岭土-长石
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     . Quartz is Main gangue mineral,next is feldspar,kaolinite,chlorite,sericite,etc. .
     脉石矿物主要为石英,少量的长石高岭土、绿泥石、绢云母等。
短句来源
     Type D has only one sample, which comes from the metamorphosed arkose sandstone.
     D型是变质的长石石英砂岩。
短句来源
     ADSORPTION OF SODIUM OLEATE ON QUARTZ AND FELDSPAR
     油酸在石英长石表面的吸附
短句来源
     Therefore,the ammonia leaching residue can be used as the fluxing agent and pigment in quartz-feldspar-kaolin ternary system ceramics.
     研究认为,氨浸渣可以作为石英-长石-高岭土3组分陶瓷的助熔剂和色料。
短句来源
     FLOTATION FOR SEPARATING QUARTZ FROM FELDSPAR WITH ANION-CATION COLLECTOR
     用阴阳离子混合捕收剂浮选分离石英-长石
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This study is conducted at 45℃.For the reservoir cores from a small well-spaced ASP flooding pilot area in North Saertu,Daqing, having immersed in an ASP flooding solution containing 12 g/L NaOH over 30 days,the SEM observations show that the quartz,kaolinite,and feldspar in the cores are etched significantly,which causes some changes in rock pore structure,destroying or plugging flow passages;a neogenic mineral crystal,comprising mainly calcium silicates,is observed under SEM in the cores flooded by the ASP...

This study is conducted at 45℃.For the reservoir cores from a small well-spaced ASP flooding pilot area in North Saertu,Daqing, having immersed in an ASP flooding solution containing 12 g/L NaOH over 30 days,the SEM observations show that the quartz,kaolinite,and feldspar in the cores are etched significantly,which causes some changes in rock pore structure,destroying or plugging flow passages;a neogenic mineral crystal,comprising mainly calcium silicates,is observed under SEM in the cores flooded by the ASP solution in 8 hrs.The scale substances deposited on well tube walls and taken from 3 production wells at the pilot area in 6 months of ASP flooding are analysed for oxide composition and shown to comprise mainly calsiferous and silicious ones and barium compounds in varying amount and the scale is layered with the content of calciferous substances decreasing or the content of silicious substances increasing in the direction of deposition from wall surfaces upwards,which indicates that the calsiferous deposits create faster and earlier than silicious ones.The samples of reservoir sand,quartz,kaolinite,feldspar,and montmorillonite are immersed in ASP flooding solutions containing 6,12,and 20 g/L alkaline over 120 days,the Si and Al concentrations in the liquid phase of reaction mixtures are determined and the determinations show that the dissolution of the reservoir sand and the rock minerals is the highest in strong alkaline(NaOH) containing solutions,medium in mixed alkaline(NaOH+Na2CO3,1∶1) containing solutions and the lowest in weak alkaline(Na2CO3) containing solutions and increases with increasing alkaline concentration in solutions;of the 3 clay minerals under study,the highest dissolution is observed for montmorillonite and the lowest——for feldspar.The mechanisms in rock/alkaline reactions and the neogenic minerals created in kaolinite and montmorillonite/alkaline reactions are discussed.

实验温度45℃。将大庆油田萨北小井距三元复合驱试验区储层岩心用含12 g/L NaOH的三元复合驱溶液浸泡30天,在扫描电镜下观测到岩心中石英高岭土长石受到明显溶蚀,岩心孔隙结构发生改变,液流通道破坏或堵塞;用该溶液驱替8小时的岩心中有新生矿物晶体形成,其主要成分为硅酸钙。复合驱试验区油井生产6个月后,3口油井油管垢样主要由钙垢和硅垢组成,钡垢量多少不等,垢样从近壁层到远壁层,硅垢量增加而钙垢量减少,即钙垢的形成快于并早于硅垢的形成。储层油砂、石英高岭土长石、蒙脱土在含6、12、20 g/L不同碱剂的三元复合驱溶液中浸泡120天,测定液相中Si、Al浓度,地层矿物的溶蚀在强碱(NaOH)液中最严重,混合碱(1∶1的NaOH+Na2CO3)液中次之,弱碱(Na2CO3)液中最轻,且溶蚀程度均随碱浓度的增大而增大;在3种黏土矿物中,蒙脱土的溶蚀程度最大,长石最小。讨论了岩石矿物与碱的反应机理及高岭土、蒙脱土与碱反应时生成的新矿物。图5表2参6。

 
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