查询词典 cementing

A new expansive agent, Expandant DB, is developed for use in oilwell cementing to prevent gas channelling and poor bond quality.

姚晓，邓敏，唐明述，DB 型油井水泥膨胀剂的研究油井水泥固有的收缩特性是诱发油气井气窜和造成水泥环胶结质量差的主要原因。

It is expected that hot melt drilling method have a good application prospect in drilling engineering, particularly in well cementing without casing.

热熔钻进工艺在无套管固井和工程施工中有很好的应用前景。

Under the condition of fresh water and 15%NaCl solution, the slurry is lower fluid loss, good rheological property and stable settlement, the set cement has higher compressive strength, which is suitable for cementing oil and gas wells in high pressure salt bed.

该水泥浆在淡水和含15%NaCl的情况下均具有较低的失水、较好的流变性能和沉降稳定性等性能，凝固水泥石具有较高的强度，适用于高压盐层油气井的固井施工。

Cementing using this additive in Zhongyuan Oilfield where contains large sections of salt bed was successful. It prove...

室内模拟实验表明，使用加有R90抗盐外加剂的饱和盐水水泥浆固井，基本能满足封固盐岩层的技术指标。R90饱和盐水水泥浆在中原油田4口井进行了现场实验，固井成功率为100％。

As a king of cementing material with high property, HPMC is used for paint, paper making, tobacco products and ceram products .

HPMC作为一种高性能粘结剂，运用于颜料、造纸、烟草产品和陶瓷产品。

As a king of cementing material with high property, HPMC is used for paint, paper making, tobacco products and ceram products .

粘结性 Caking property HPMC作为一种高性能粘结剂，运用于颜料、造纸、烟草产品和陶瓷产品。

Proximal and distal centralisers facilitate reproducible creation of a complete, uniform, cement mantle.27 The benefits of contemporary cementing techniques have been shown in the Swedish hip register,28 and very good mid-to-long-term results have been published.

近端和远端的中置器促进形成完全、均匀的骨水泥套。瑞典髋关节登记系统显示，现代骨水泥技术有着极好的中、长期临床疗效。

To improve thetemperature stress and increase frost resistance, the roll conrete adopts RCC mix proportion mading up ofmedium-content cementing material, low-content cement, high-content flyash and methods to defer loss of VCso as to meet the requirement of the RCD construction technique. It has the advantages of both th...

为了改善坝体的温度应力，提高其抗冻性，碾压混凝土采用了中胶凝材料总量、低水泥用量、高掺粉煤灰的RCC配合比，并采取措施减缓VC值的增长速度，以满足RCD筑坝技术的要求，使其既保持了RCD筑坝技术的长处，又具有RCC高掺粉煤灰的优点，从而发展了RCD筑坝技术。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。