Discussions on Action Mechanism of Crystal Seed in Fly Ash-Alkali Cementitious Material

This paper describes the technical measures taken to well cementing and on-site construction process.

本文细致引见了该井固井采纳的手艺办法及现场施工工艺。

All oil well cementing process face the problem cementing central channeling air, and it is a potential technical problem in cementing. Cementing central channeling air is one of the most difficultly technical challenges and it should be a considerable period of time to cementing the sector.

固井环空窜流是所有油气井固井过程中都要面临的一个潜在固井技术难题，也是相当一段时间来国内外固井界面临的一个最为棘手的技术难题。

At the same time, this article also explained the deep wells, high temperature wells, high pressure wells, deviated wells, horizontal wells, long seal the well cementing process key technologies to form the Tarim Oilfield special well cementing process standardization system.

根据塔里木油田的特殊井况，重点介绍了深井、高温井、高压井、大斜度井、水平井、长封固段井固井工艺关键技术，从而形成了塔里木油田特殊井固井工艺标准化体系。

The reason of producing U shape tube effect in cementing process is analyzed in this paper. A mathematical model of the whole cementing process is set up to calculate the concrete instance and study the relevant factors thoroughly.

本文分析了注水泥过程中产生U型管效应的原因，建立了模拟注水泥全过程的数学模型，进行了实例计算并对有关因素进行了详细分析。

The accurate reflection and description of the dynamic variations of the parameters in the cementing process is of great importance to the reasonable control of operating measures and the guarantee of cementing quality.

准确反映和描述注水泥过程中井下各种参数的动态变化，对合理控制施工措施，保证注水泥顶替质量是非常重要的。

Computer simulation of dynamic cementing process

注水泥动态过程的计算机模拟

Experimental Study on Binding Materials and Cementing Process for Total Gold Tailings

金矿全尾矿胶结材料及工艺的实验室研究

Both laboratory and field tests have shown that the MTC with exciting agents can meet the needs of cementing operation for medium casing.

室内两类泥浆模拟试验以及现场一类泥浆固井实践均表明，采用激活剂技术的MTC综合性能满足技术套管固井要求。

The preparation of construction cementing medium from phosphogypsum and blast furnace slag has been studied, highlighting the mixing ratio of the raw materials and the product performance.

介绍了利用化工副产品磷石膏和高炉矿渣制备建筑胶结料的方法。

According to the criterion, the article examines the cooperative performance of steel plate working together with CFRP and cementing medium by fatigue experiment.

本文参照规范，以应力幅准则为依据，通过疲劳试验检验了胶结在一起的纤维材料和钢板在高次循环弯曲荷载作用下的协同工作性能。

The results show that the zirconia-type artificial opal is similar to the natural opal in the chemical composition, mechanical character and structure, but only a few of zirconia present in the cementing substance.

研究表明，氧化锆型人工欧泊的化学成分、力学性质、结构与天然欧泊的基本相同，前者仅在粘结物中存在少量的氧化锆；

Soil mini-structure can be defined as: the relative position, array character, contact state, links, cementing substance& their state, the size and shape of void among soil particles or their polymers.

土体的细观结构是指土颗粒或颗粒聚合体之间的相对位置、排列特征、接触状态、粒间连结、胶结物及胶结状态、粒间孔隙大小与形状。

Their nests are constructed with salivary glue, a cementing substance, and may incorporate other materials such as vegetation or feathers.

燕子的巢由分泌唾液构建，一种粘合物质，并加上其他材料，如植被或羽毛。

For black soil with high content of organic matter, organic cementing substance is an important factor in forming soil aggregates.

对于有机质含量高的黑土，有机胶结物质是形成土壤团聚体的主要因素。

The influence of different interface cementing agents on the bond strength of interface between the new and old concretes is studied in order to find out the most favorable interface cementing agent.

目的通过实验研究不同种类的水泥基无机材料界面剂对新旧混凝土劈拉强度的影响，从而得到对新旧混凝土粘结最有利的界面剂种类。

The shear strength of the perforated brick masonry is much higher than which of ordinary brick masonry is indicated in the shear experiment. The mainly reason of mortar's pin key action and the second reason of cementing bond difference between brick and mortar are found.

受剪试验表明多孔砖砌体抗剪强度高于普通砖砌体抗剪强度，主要原因是砂浆的销键作用，其次是砂浆与块体的粘结力的差异。

SBT, MAK-2, GR-DEN and acoustic log tools in china have some shortcomings in evaluation of cementing bond quality, such as poor practicability and long time interpretation, etc.

SBT、MAK-2、伽马密度测井仪和国产各种声波密度仪器在固井质量评价过程中存在着实用性差及处理解释时间长等缺陷。

Therefore, improving the cementing bond strength of the second surface of the strength of cement and cementing process is particularly important to ensure the quality of cementing of wells seem.

因此，提高固井二界面的胶结强度和固井过程中水泥石的强度对于保证整口井的固井质量防止气窜的发生显得尤为重要。

Evaluation System of Cementing Bond Quality in Liaohe Oilfield

辽河油田固井质量评价系统开发

Urea-formaldehyde cementing agent for sand consolidation in high water cut production wells

适用于高含水出砂油井的脲醛树脂固砂剂