污染深度 pollution depth(8)   pollution depth     The results of 277 wells cemented in Daniudi gas field indicate that 92. 7% have high quality and 100% meet the specified requirement, and the most important is that the pollution depth by cement slurry is only 5. 16 cm which can be removed completely by perforation.     大牛地气田227井次的固井施工表明,固井质量优质率达92．7％,合格率达100％,而且水泥浆对气层的污染深度只有5．16cm,通过射孔完全可以解除。 短句来源     Calculation method of pollution depth of acidized gas well in Chishui region     赤水地区某酸化气井污染深度的求取方法 短句来源     This paper also analyzes the pollution depth, the filtrate composition, the quantity of precipitates, and the separation sequence.     文章还深入地分析了水泥浆的污染深度，滤液中的成分，沉淀物的数量及析出的先后次序等问题。 短句来源     This paper analyzed the characteristics of horizontal wells d amage, an d then established a set of method to calculate the drilling fluid lost circulat ion and pollution depth that vary with the horizontal section.     分析了水平井地层伤害的特点 ,建立了计算水平井段不同位置处钻井液滤失和污染深度的一套新模型。 短句来源     Applying the theoretical model to calculate the equifinal damage depth which varies with the horizontal section, a formula of pollution depth which varies w ith the horizontal section through volume transformation was presented.     采用理论模型计算不同井段位置处的钻井液等效污染深度 ,然后由体积变换得出不同井段位置处的污染带半径 短句来源 更多          “污染深度”译为未确定词的双语例句     Study on the Determination of Formation Invasion and Damage Depth by Long Core Experiments     长岩芯实验确定地层侵入深度和污染深度的研究 短句来源     The effect on productivity ratio and skin factor of depth of penetration, hole diameter, hole density, phase, format, damage depth, damage percentage, compaction zone depth, compaction perc entage, wellbore radius, drainage boundary radius, K_z/K_r ratio, bottom hole pressure, boundary pressure and production pressure difference is considered in the mathematical model.     数学模型考虑了孔深、孔径、孔密、相位、格式、污染深度、污染程度、压实带厚度、压实程度、井筒半径、边界半径、地层垂向与径向渗透率比值、井底压力、边界压力、生产压差等十四个参数对射孔井产率比、表皮系数的影响。 短句来源     his paper briefly introduces the basic principle and experimental procedure of the determination of oil-bearing formation damage by long core experiment, analyzes the method of the determination of formation invasion and damage depth by the long core experiment, and points out, through the analysis of the experimental data, that the invasion depth of mud filtrate is greater than the damage depth of mud filtrate in formation, and that the damage of filtrate to formatin is less than that of mud particles.     简述长岩芯实验确定油层污染关系的基本原理和基本实验过程，分析长岩芯实验确定地层侵入深度和污染深度的方法，并通过实验数据分析指出：地层侵入深度大于污染深度，泥浆颗粒对地层造成的损害大于泥浆滤液对地层的损害。 短句来源     In this paper, core damage tests were conducted with cement slurries of different filtration control additive doses to study how the filtrate volume affect the core permeability and damage depth into the formation.     用失水量不同的水泥浆进行岩心污染试验,研究了水泥浆失水对岩心渗透率和污染深度的影响。 短句来源     Results showed that the filtrate volume of slurry plays a minor role in damage depth in the core, but it has evident influence on the core permeability.     结果表明,水泥浆失水量对岩心污染深度影响不大,但对岩心渗透率有很大影响; 短句来源 更多        查询“污染深度”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 没有找到相关例句 Finite element method has been used to study the flow characteristics of perforated wells and to investigate perforator penetration and damage mechanism in combination with core target experiments. Establishment of a finite element mathematical model for a core perforation and its numerical solution are presented in detail. The effect on productivity ratio and skin factor of depth of penetration, hole diameter, hole density, phase, format, damage depth, damage percentage, compaction zone depth, compaction perc... Finite element method has been used to study the flow characteristics of perforated wells and to investigate perforator penetration and damage mechanism in combination with core target experiments. Establishment of a finite element mathematical model for a core perforation and its numerical solution are presented in detail. The effect on productivity ratio and skin factor of depth of penetration, hole diameter, hole density, phase, format, damage depth, damage percentage, compaction zone depth, compaction perc entage, wellbore radius, drainage boundary radius, K_z/K_r ratio, bottom hole pressure, boundary pressure and production pressure difference is considered in the mathematical model. Grid sensitivity analysis ensures convergence and accuracy of calculation. An example is given to illustate the flow behavior of the core target, and the effect of perforating parameters on productivity ratio is analyzed. The table listed in API RP 43 is shown by calculation, electric modelling and core target experiment to be less reliable. Revision of these data will help evaluation of core flow efficiency. Compaction zone permeability can also be obtained by back calculation. 本文探讨了有限元方法在射孔研究中的应用,较详细的论述了射孔有限元数学模型的建立及数值求解方法。数学模型考虑了孔深、孔径、孔密、相位、格式、污染深度、污染程度、压实带厚度、压实程度、井筒半径、边界半径、地层垂向与径向渗透率比值、井底压力、边界压力、生产压差等十四个参数对射孔井产率比、表皮系数的影响。利用网格敏感度分析方法保证了数值计算的收敛性和精度。举例说明了有限元法所得出的射孔岩心靶流动规律,和分析了射孔参数对PR的影响。 This paper presents a new electrical analogous equipment ,which has solved the problem of a compacted zone around the perforation and drilling damages around the wellbore. Under negative pressure there is no blocking up by perforation debris. The equipment is designed for the parameter range under negative pressure. The experiment was arranged and conducted with the application of mathematical statistics in terms of nine parameters: perforation penetration, perforation diameter, shot density, compaction thickness,... This paper presents a new electrical analogous equipment ,which has solved the problem of a compacted zone around the perforation and drilling damages around the wellbore. Under negative pressure there is no blocking up by perforation debris. The equipment is designed for the parameter range under negative pressure. The experiment was arranged and conducted with the application of mathematical statistics in terms of nine parameters: perforation penetration, perforation diameter, shot density, compaction thickness, compaction damage, perforation phasing peoforation model, drilling damage and damage depth.The advantage of this technique is less times of tests and simple date treatment.The regression equation can predict the effects of the nine parameters upon well production .The results derived from permeability theory are applicable to any homogeneous reservoir. 本文提出了一种新的电模拟实验装置及其实验方法。装置解决了对孔眼周围射孔压实带和井壁周围钻井污染带的模拟。在负压射孔条件下,不存在射孔碎屑将孔眼堵死的情况,射孔排布稳定可靠。装置按负压射孔条件下的参数设计,运用数理统计方法安排实验,对射孔深度、孔径、孔密、压实带厚度、压实带损害程度、布孔角度、射孔格式、污染程度、污染深度等九个影响因素开展研究,具有实验次数少,数据处理简便等优点。所得回归公式可预报这九个因素对油井产量的影响,经渗流理论推演,结果可适用于任何均质油藏。 Using well testing data, this paper evaluates the damage degree, damage depth and the results of ormation stimulation for Tzahong Carbonic period sandstone reservoir in Tarim. Based on the phenomenon that the farther the distance to borehole axis, the slighter the damage of formation, the skin factor is divided, the applications of well testing data are enhanced. It has a guide function for formation stimulation 本文利用地层测试资料，在对塔里木塔中石炭系砂岩储层的污染程度、污染深度及措施增产率进行评价时，根据离井轴愈远污染愈轻的现象，首先对表皮系数进行了分解，加深了地层测试资料的应用，对矿场进行增产措施有指导作用。   << 更多相关文摘      相关查询 深度 污染 有限深度 深度电流 坏死深度 污染膜 单项污染 微深度 光深度 器具污染 区污染 污染行业

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