This paper introduces the importance of cementing and illustrates the necessity and development histor)' of cement bond evalualion.
介绍了固井工程的重要性,说明了水泥胶结评价的必要性和发展历史,重点论述了国外七大公司代表水泥胶结评价测井先进水平的测井评价仪器的原理和技术指标。
It has been the major technical problem for the petroleum industry to succeed in making the filter cakes from cementing fluid and drilling fluid solidified together.
固井液与钻井液滤饼实现整体固化胶结一直是石油工程界期待解决的重大技术难题。
For the hardening process of the stabilized soil,a new structural model of stabilized soil was proposed that the structure formation of stabilized soil included soil particle cementing and pore filling.
根据固化土实际固化过程,提出一个新的固化土结构模型,即固化土结构形成主要由固化剂胶结土颗粒和填充孔隙两部分构成。
Discussion on measures to improve the interface cementation quality of cement sheath.;
提高水泥环二界面胶结质量方法的探讨
The coarse clastic rock of the braided channel of the fan-delta plain is formed when sedimentary water body is in the salinity stage of active tectonic period, the cotemporaneous cementation is intense and the cementation of the carbonate and sulphate has intense packing action in eogenetic stage of shallow buried.
构造相对活跃期为沉积水体咸化期,主要发育扇三角洲平原亚相的辫状河道粗碎屑岩,同生期胶结作用强,而浅埋藏早成岩阶段碳酸盐和硫酸盐胶结物充填强烈,致使物性进一步变差,并且不利于晚成岩A阶段的溶蚀作用进行。
Thus the interface cementation performances of slag MTC slurry and conventional slurry under the conditions of no cake,conventional drilling fluid cake and multifunctional drilling fluid cake were systematically compared and the reason of mud cake solidification was analysed.
矿渣MTC能不能实现泥饼的固化胶结,是否能提高第二界面胶结强度,对矿渣MTC的推广应用极其关键,为此系统比较了矿渣MTC水泥浆与油井水泥浆在没有泥饼、普通钻井液泥饼、多功能钻井液泥饼3种情况下的界面胶结性能,并对泥饼固化的原因进行了分析研究。
Applying the method of mixing some ordinary portland cement into soil sample, structrued soil with different cemented strength and initial void ratio is.
采用在原料土中掺入微量普通硅酸盐水泥的方法制备具有不同胶结强度和初始孔隙比的结构性土样，模拟天然结构性原状土的受力变形性质。
By putting some amount of cement into soil sample, structured soil with macro-pores is prepared.
试验表明，胶结较强的结构性土具有明显的初始屈服面，在初始屈服面内，土体表现为弹性，超过初始屈服面土体表现为弹塑性。
Tests are done to research waste-rock-cemented-mass,strength and the velocity of longitudinal wave(v_p)are tested in different proceed.
进行含水量对纵波波速和强度的影响实验分析,研究了低强度混凝土的单轴抗压强度与纵波波速的相关性,归纳总结了用现场纵波波速测算现场强度的经验公式,为现场低强度混凝土的评价提供了参考;同时进行胶结材料强度试验研究,初步认识了这种低强度碎石水泥胶结结构体的破坏规律和强度特性。
Influence of cemented filling on stope stability;
胶结充填对采场稳定性的影响
Cemented filling with phosphorus gypsum from Kaiyang Phosphorus Group Co,Ltd not only reduced storage of phosphorus gypsum on ground surface in mining area,but also provided a condition for pillars recovery.
开磷集团的磷石膏胶结充填不仅能减少矿区磷石膏的地表存放,而且能为矿柱的有效回采创造条件。
The results show that the tailings from Tongshan Copper Mine and sand from the Yangtse River are capable to apply to cemented filling accompanied with the 425 cement.
结果表明,铜山铜矿分级尾砂和江砂可以作为充填骨料与425~#普通硅酸盐水泥进行胶结充填。