Generally, it is not enough to take mechanical or chemical sand-prevention methods for those high sand production Wells, resulting in replacing the sand-prevention tubings.
对于严重出砂地层的油水井，即使采取了机械或者化学防砂措施，也不能保证油水井的长期稳产，不得不提出防砂管柱进行更换。
His work offered valuable experience to sand prevention and control in China.
他的工作为我国防沙治沙提供了宝贵经验。
Both sides can also strengthen cooperation in the areas of tourism, sand storm prevention and space technology.
双方还可在旅游、防治沙尘暴、空间技术等领域加强合作。
A burst accident of a sand tank, which was used for removing rust by means of spraying on an oil tank, was analyzed, and the prevention countermeasure was provided.
对油罐喷砂除锈过程中发生的一起砂罐爆炸事故进行了剖析，并提出了预防对策。
This paper analyzes detailed the causation of the vacuole, irregular crack, sand out, surface pit, and brings up treatment and prevention measure.
本文对水泥地面经常出现的空鼓、不规则裂缝、起砂和麻面等问题原因进行了详细分析，并提出了处理与预防措施。
Products used for the prevention or control of slime growth on materials, equipment and structures, used in industrial processes, e. g. on wood and paper pulp, porous sand strata in oil extraction.
用于防止或控制在用于工业过程中的材料、设备、结构表面粘液菌的生长。
Study on soil wind erosion and vegetation efficiency of wind and prevention sand resistance artificial vegetation at sand-land in yongding river in beijing.
北京市永定河沙地土壤风蚀与人工植被防风阻沙效益研究。
For monocular cold, tears treatment, prevention and treatment of ocular sand fade.
①用于单眼伤风、流泪的治疗，预防和治疗眼砂褪色。
The engineering sand prevention system along the highway of crossing Kubuqi desert was damaged seriously.
库布齐沙漠穿沙公路两侧现有工程防沙体系破损情况日趋严重。
Through optimizing output and productivity, reasonable sand production exploitation decides optimal production measure between sand prevention and sand production.
适度出砂是通过优化产量和油井的产能在防砂生产和出砂生产之间确定最优的生产策略。
And put forward the prevention measure to the influence of the see sand upon the concrete structure durability.
并针对海砂对混凝土结构耐久性的影响提出防治措施。
The effect of blowout prevention and sand control of FYJ-2 is tested by laboratory experiment of dynamic mud stone particle flushing, sand control experiment and formation damage test.
通过室内泥岩颗粒动态冲刷试验、抑砂试验和对地层的伤害试验，测试了FY J - 2的防膨抑砂效果。
Surface viscous acid has been prepared by mixing thickening agent (PAM) and cross? Linking agent (GL-5) with acid, which has the function of retarding reaction rate and sand prevention.
表面稠化酸是将稠化剂(PAM)、交联剂(GL - 5)加到酸中配制而成，它具有缓速酸化和防砂作用。
Mean while, the construction process of the closure embankment for reclamation work has been also investigated and the measures for leakage prevention by filling sand is reviewed.
同时调研了围海工程堵口海堤的施工过程，并对灌砂防渗措施加以评述。
In this article, the dynamic simulation analysis is discussed for the horizontal part design of national "863" plan project "Grass square pavement robot for storm prevention and sand immobilization".
本文运用该方法对863课题“防风固沙草方格铺设机器人”的横向插草机构中的一种方案，即气动插草机构进行了动力学仿真分析。
In the evaluation of gravel filling sand prevention, the filling coefficient is one of important parameters to evaluate gravel filling whether good or not.
在砾石充填防砂评价中，充填系数是评价砾石充填好坏的重要参数之一。
Reasonable aperture of sand prevention meshwork is important if liner in sand prevention of horizontal well is adopted.
水平井若采用筛管防砂，合理的防砂网孔径的确定尤为重要。
A novel resin for in-situ sand curing is developed through indoors experiment to solve problems exist in the sand prevention of heavy oil well, such as high cost and severe formation damage.
针对目前稠油井防砂存在的成本高、对地层损害严重等问题，通过室内实验研究出了一种新型树脂就地固砂技术。
The processing of silica sand including transferring, screening and dewatering, eliminating bridge-formation in the silo, weighing in precision, dust-prevention device etc. has been recommended.
本文着重介绍了石英砂原料的输送、筛洗与脱水、料仓破拱、精确称量、除尘与密封等问题。
The surface defects formation mechanism of steel castings produced with resin-coated zircon sand mould was described, and their prevention measures were discussed.
论述了锆砂覆膜砂铸钢件表面缺陷的形成机制，就该缺陷的防治措施进行了探讨。
The communities of these sand dune-fixed plants suffer severe degeneration and thus need enhanced protection, grazing control and prevention of sand dunes from becoming mobile.
固定沙丘植物群落退化严重，需要加强保护，控制放牧强度，防止沙丘活化。
Therefore a new type of sand prevention and water plugging agent was studied in this paper. The new agent can prevent sand effectively, but also plug water with high selectivity.
研究将防砂堵水工艺合二为一的新型防砂堵水剂，既能有效防砂，又有选择性堵水效果。
Mean while, the construction process of the closure embankment for reclamation work has been also investigated and the measures for leakage prevention by filling sand is reviewed. Finally, the experi…
同时调研了围海工程堵口海堤的施工过程，并对灌砂防渗措施加以评述。
Marine organism adherence prevention can not be used and sand removing can be reduced, which help to lower the seawater pretreatment costs.
此外，渗滤取水水质较好，可以不用进行防海生物处理和减少对海水含砂量的处理，有利于节约海水预处理费用。
They came to Ningxia(China)for the 21-day-long International Technical Training Course of sand prevention and control.
目前他们正在宁夏参加为期21天的阿拉伯国家防沙治沙技术国际培训班。
They came to Ningxia(China)for the 21-day-long International Technical Training Course of sand prevention and control.
目前他们正在宁夏参加为期21天的阿拉伯国家防沙治沙技术国际培训班。
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