sand-transport effeciency

The sand carrying rate of sands with different diameters in concentric and eccentric annular spaces is obtained, impact of velocity and annular space eccentricity on prop-carrying capability of foam fluid is researched, and safe sand carrying conditions in .

利用FLUENT软件中的分散相模型对泡沫流体的携砂能力进行了数值模拟,得到不同直径的砂粒在同心环空和偏心环空中的携砂率,研究了泡沫流速和环空偏心对泡沫携砂能力的影响,并得出水平井泡沫流体冲砂洗井的安全携砂条件。

The relations of sand carrying rate and residence time in foam fluid to inclination angle of annular pipe were given.

利用FLUENT软件中的分散相模型对泡沫流体的携砂能力进行了数值模拟,得到了不同直径的砂粒在泡沫流体中的携砂率和停留时间随环空管道倾角的变化关系,与相同条件下水的携砂性能进行了比较,并进行了定性分析。

Research on critical sand transportation velocity for low Viscosity liquid flow in vertical well-bore;

垂直井筒低黏度液流最小携砂速度研究

So purifying quality of drilling mud and desanding efficiency are largely improved,the blocking area can be automatically broken with .

研制开发的自动旋流除砂器弥补了传统除砂器固相成分分离效果不佳、排砂口易堵的缺陷,显著提高泥浆或矿浆的净化质量与除砂效率,且能自动排堵,降低了除砂工作的时间消耗和成本。

viscous carrier placed pack

用高粘携砂液作业的砾石充填

Theoretical Study on Carrying and Flowback Capacity of Workover Fluid Contaminated by Calcium Ions

钙侵修井液携砂返排能力的理论研究

Application of Cross-linking Acid Fracturing with Proppant Technique in Redevelopment of Dolomite Reservoirs;

交联酸携砂酸压在白云岩储层改造中的应用

LABORATORY INVESTIGATION OF PROPPANT TRANSPORTABLE CROSS-LINKED ACID FRACTURING FLUID SYSTEM

可携砂酸压交联酸酸液体系的室内研究(英文)

New progress in sand-carrying fracturing by blending fiber for oil and gas wells in China

中国油气井掺纤维携砂压裂工艺技术新进展

Application of cross-linked acid-carrying sand fracturing technology to carbonate reservoirs

交联酸携砂压裂工艺在碳酸盐岩储层的应用

Cold heavy oil production with limited sand influx and technology study for 6 bolck, sudan

苏丹6区稠油有限携砂冷采数值模拟及采油工艺技术

Experimental Study on Correlation between Filter Material Thickness of PVC-U Gravel-filled Filter and the Sand-resistance

PVC-U携砾过滤器滤料厚度与阻砂性的相关关系试验研究

cord, foundry, used in the reparation of sand moulds

翻砂型芯,用于制备砂型

lithic arkosic wacke

岩屑长石砂岩质杂砂岩

"Clay, silt, sand, and gravel. "

粘土，粉砂，砂土和砾石。

vertical belt variety sander

垂直砂带多用砂光机

Sands lithify into sandstones.

砂经过石化而成砂岩。

Minute rough granules, as of sand or stone.

砂，砂砾，砂粒细小的粗颗粒，如砂和石头粒

glossary of terms and marks used in abrasive, grinding wheel and abrasive cloth and paper

磨料、砂轮、砂布、砂纸术语和符号

Preparing Green Molding Sand by Using Returned Sand Containing Collapsed Resin-Coated Sand

用混有溃散覆膜砂的旧砂配制湿型砂

currency restrictions

货币 (携出) 限制

Containing, covered with, or resembling grit.

含砂的，砂覆的，类砂的含有或类似砂的，被砂覆盖的