For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此,對該區裂縫性儲集層的類型識別、
孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此,本文從測井地質的角度,針對當前裂縫性儲層測井地質解釋與評價的現狀,在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上,利用分形分維方法和技術,通過對archie測井解釋
模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ ( fa )與m指數的理論推導,根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜,則其分維值d _ ( fa )越大、裂縫
孔隙空間結構越復雜、裂縫
孔隙空間結構指數m值越高等特徵,提出了改進的基於盒維數的測井曲線網格覆蓋法,編程計算了裂縫性儲層段常規測井曲線(如聲波和電阻率曲線)上分形分維值及其m指數值,進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究,效果十分理想: 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪,採用儲層分維值分類技術統計分析這些參數變化的規律,並結合qx油田l區塊儲層類型經驗判別圖版,從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。
3. the mathematical model for heat and mass transfer in the adsorbent bed is established, the porous of adsorbent, the flow of adsorbate in adsorbent, the characteristic of non - equilibrium adsorption are combined in the model, and a more accurate model of fluid flow in porous media - ergun model is adopted
它綜合考慮了吸附劑的多
孔介質結構,吸附質氣體在吸附劑內的流動,吸附的非平衡特性等,並且在吸附質氣體流動
模型的選擇上,採用了ergun多
孔介質流動
模型,比常規的數學
模型更全面準確地描述了吸附床傳熱傳質的動態特性。
On the basis of the basic theory of metal distortion, using round steel alit rolling as entity model and combining with production practice, the selection of slit location, slit mode and the design parameter of slit pass system were analyzed, and the area calculation model of pre - slit rolled piece and slit rolled piece was built
摘要基於金屬塑性變形基本理論,以圓鋼雙線切分為基本實體
模型,結合生產實踐,對切分位置、切分方式的選擇和切分
孔型系統的設計參數進行了分析,並建立了預切分軋件和切分軋件的面積計算
模型。
The study is imitating subulate tool penterite armor fabric by method of test for puncture of paperboard and corrugated fiberboard, and to ascertain the laver of armor fabric for absorb energy and arrestment, and any difference angle to compare the rank of defying ball, for understanding the sharp to the rank of annor fabric defy penterite energy, and penterite deep, the lose energy relation of sharp
摘要本研究是以沖
孔強度試驗機測試,
模擬尖錐利器攻擊穿刺防彈衣,且對于防彈衣層數間的阻抗作用及能量吸收的情形,並對各種不同角度的抗彈織物疊層排列作相互比較,進而?解尖錐對防彈衣的抗穿透層數之能量及穿透深度、錐度之能量耗損之間關系。
Simulation and experiment on basic principle, imaging algorithms, auto - focusing techniques and bathymetry are given in chapter five
理、成像演算法、自聚焦運動補償技術與合成
孔徑測深的
模擬和實驗結果。
Abstract : this paper explains the design of piercing die for steel tube, especially the manufacturing process using bench worker ' s experience to reduce the manufacturing cost. meanwhile, it also introduces the design of bending die for steel tube using the principle of take - out - slug, which can improve the work efficiency
文摘:介紹鋼管沖
孔模具的設計,如何利用鉗工的操作技能來製造上、下沖
孔模具,降低製造成本;以及不用抽芯塊的原理來設計鋼管彎曲
模具,從而提高工作效率。
In the simulation, the mpc technique of msc. nastran is used to simulate the mechanical behavior of contact between the interfaces of piston pin and bearing of small end, crankpin and big end bearing, connecting rod body and bearing cap ; also constraints are applied to the connecting rod reasonably
分析中採用了patran中的多點約束( mpc )技術,有效地
模擬了活塞銷與小頭
孔內表面、曲柄銷與大頭
孔內表面以及連桿體與大頭蓋接觸面的力學接觸狀態,並對連桿進行合理的約束。
The material was sintered at 1050 for three hours to get the porous artificial bone, that its apparent porosity was54 %, its volume density was 1. 28 g / cm3, and its bending strength was 13. 25mpa. the results showed that the sintering temperature was reduced by adding bioglass
本研究採用含生物玻璃前驅體粉末原料,添加檸檬酸造
孔劑,
模壓成型,在1050燒結保溫3小時,獲得了顯氣
孔率為54 、體積密度為1 . 28s cm ~ 3 、抗彎強度為13 . 25mpa的多
孔hap人工骨材料。
Some of the faces were clear enough, but some were mere blurs and blotches or had one feature grossly exaggerated.
有些人的面
孔很清晰,有的
模糊不清,有的黑乎乎的一片,還有的某個部位特別醒目。
And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media
以土力學
模型為基礎,利用以土骨架和
孔隙流體的四個位移為基本未知量的數值方法去
模擬二維飽水介質中的地震波傳播,採用了顯式差分方法(中心差分法和newmark常平均加速度法結合)和透射邊界,通過比較利用幾種差分格式求解的加速度結果,發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用,分別編制了體波( p波或sv波) 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。
Abstract : to decrease bending and twist deformation of non - sym metry extruded sections, a new conception of local extrusion ratio and die band ratio has been set up, and also the formulas for the place of die hole on the ba sis of simulating test
文摘:為減小非對稱型材擠壓的彎扭畸變,在試驗研究的基礎上,建立了局部擠壓比、擠壓帶系數的概念,擠壓筒中心與擠壓
模孔型中心相對位置的計算式。
Burial dissolution mainly developed inside the primary micropores, the partly filled intergranular porosities and the intercrystal porosities, which furthermore formed lots of enlarged pores, intergranular pores, oolimolds
埋藏溶解作用主要在粒間半充填剩餘縫隙、交代白雲石的晶間
孔內進行,這進一步溶蝕造就了大量超大
孔隙、粒間溶
孔、粒內
孔、鑄
模孔等。
With the intermittent activity of hot fluid containing cc ^, ferrous carbonate minerals dissolved and precipitate repeatedly many times. in addition, dissolution of shells and feldspars, decrease of chlorite and increase of kaolinite could be found
隨著富co _ 2熱流體多次間歇性入侵導致了含鐵碳酸鹽礦物的反復多次溶解和沉澱、生物介殼大量溶蝕和長石鑄
模孔的形成以及綠泥石消失、高嶺石增加等。
Die reduction angle
拉
模孔圓錐角
Bass flute is made of a kind of special material, the sound of which is very gentle. it is two sound holes and one model hole more than ordinary flute
低音笛子音色渾厚柔和,由玻璃鋼製作而成,它比一般笛子多兩個音
孔,多一個
模孔。
Die entrance angle
模孔入口錐
Die exit angle
模孔出口角
Die relief angle
模孔出口角
Mold lock hole 25mm
鎖模孔: 25mm