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- sand control forest 防砂林
- In conclusion, ecomat chessboard type is the best measure for sand control ecologically and economically in this region. 从生态和经济的角度综合考虑,钻字状铺设显然是该区域流沙防治措施中较好的选择。
- Therefore, oil viscosity m ust be considered in sand control design in viscous oil field. 因此 ,对稠油油藏进行防砂设计时应考虑原油黏度的影响
- Therefore, the sand control strength can be improved through adding the fibred to the coated sand. 所以,在覆膜砂中加入纤维,可以提高覆膜砂的挡砂强度等性能。
- Therefore, the sand control strength can be improved through adding the fibre to the coated sand. 所以,在覆膜砂中加入纤维,可以提高覆膜砂的挡砂强度等性能。
- Control forest moles were tested by biological sterile drug.The results showed pregnant rate of female nature mole was decreased 55%.More biological drug dosage the more effect. 通过生物性不育剂防治森林害鼠试验,结果表明,雌成年鼠怀胎率下降55%25,高投药量会得到高效。
- Separate implementation of sand control,water plugging and injectivity profile control had brought formation damage. 稠油油藏在开发过程中常遇到出砂、出水的问题,开采时分别进行防砂、堵水、调剖3种措施给地层带来了伤害。
- Common downhole handling processes,such as acid jobs,control pipe or central pipe sand control,meet these problems. 对利用高压水射流技术的物理法解堵机理进行了分析;
- Therefore, it would help sand control to avoid perforating such areas in selec... 当井筒内压力保持不变时,随着油藏压力衰竭,射孔孔眼发生剪切屈服、出砂的可能性增大;
- Does the supplier have an established Sand Control procedure to control molding and core sand mixes? Especially for grain size and sand moisture. 工厂是否制定了型砂的控制程序来控制造型和制芯的混砂过程?尤其是砂的粒度和含水量?
- Plugging removal after sand producers is contaminated results in more serious sand production, so BHS?A acidizing sand control fluid is developed. 为此,研制了以树脂、阳离子聚合物、硫脲为主要原料,再与酸液复配制得的BHS-A酸化防砂液。
- It is used in 76 wells, and it indicates that the technique can be used to solve the problem of high pressure sand control ... 现场应用76口井表明,该技术可较好解决老油井高压防砂难题,应用范围广,施工成功率高,增产防砂效果好。
- The circlip lead seal packer with sand control is developed for ensuring the normal production of big borehole sand control well. 为保证大井眼防砂井正常生产,研制了卡簧式铅封防砂封隔器。
- This paper describes the frac-packing completion technique currently being used in Shengli Oilfield for stimulation and sand control. 阐述了压裂充填防砂这一先进防砂完井技术的机理、设计和施工工艺;
- A low-cost low-temperature sand control agent has been developed by optimizing the structure of phenolic resin and synthesizing low-cost resin with coal tar and paraformaldehyde. 对酚醛树脂结构进行优化,合成出高效酚醛树脂,加入以煤焦油和多聚甲醛为原料合成的廉价树脂,研制出廉价低温防砂剂。
- Brief on Mix Pesticide Control Forest Insect Pests 混合农药防治森林病虫害简介
- A novel artificial sand control technique has been developed to tackle sand production of low-temperature reservoirs containing tiny sand in the Yumen Oilfield. 为解决玉门油田细粉砂低温油藏防砂技术难题,研究了一种新的人工岩层防砂技术,分析了人工固结岩层防细粉砂的机理。
- This paper deals with the control effect, the control cost per hectare, the ratio of investment cost and produce benefit of aerially controlling forest pests by Haiyan ultralight plane in contrast with other methods. 本文研究报道了“海燕”超轻型飞机同其它防治法防治森林害虫的防治效果、每公顷平均防治成本及投入产出比。
- To overcome the deficiencies of conventional sand control techniques,and according to the characteristics of siltstone,the new theory of fine-silty sand control was presented. 分析传统防砂工艺的不足,针对细粉砂岩的特点,提出防治细粉砂的总体思路为“解”、“稳”、“固”、“防”、“保”和“增”。
- A sand control pipe of metal funicle,which is made by metal funicle with filtrate material is developed successfully in order to prevent test tools blockage and sand production. 为预防地层出砂堵塞测试工具,用金属纤维作过滤材料,研制成功了金属纤维防砂管。