采用有限元数值模拟方法系统地研究了电场作用下不同结构裂缝介质中单相和两相渗流机理。
In this paper, mechanism of one - and two-phase fluid flow in fractured media with different structures under electric fields was systematically investigated by finite element method (FEM).
由于裂隙裂缝介质的空间展布是任意的,因而有可能通过研究不同观测方位的弹性波波场来研究这类介质。
Irregular fractured medium can be desirably ascertained by analysing the elastic wave fields which were observed in different positions.
首先,从理论上讨论了各向异性介质中的反射和透射系数方程,给出了裂缝介质的线性近似反射系数公式;
There are two approximate reflection coefficients applied generally, and their differences are compared in order to attain the linear formula of azimuthal AVO inversion of P-wave.
本文对其在裂缝介质、双相介质及随机介质等方面的研究所取得的成果作一综述,以期为今后在该领域的研究积累较为系统的基础资料。
The authors reviewed the achievements of these researches of complex medium including fractured medium, bi-phase medium and random medium, so as to accumulate the basal systemic information for …
通过实验结果分析发现,在裂缝宽度不同的多裂缝体系的石油运移过程中,宽度大的裂缝方向控制着石油运移的方向和原油在裂缝介质中的分布。
The experiment results demonstrate that the direction of fractures with the greatest width controls mainly the migration direction and distribution of oil in fractured media.
根据地震相干体,预测出裂缝的分布,引入等效介质理论,建立了地质模型。
According to seismic coherent body, this paper predicts distribution of fractures, USES equivalent medium theory, and establishes geologic model.
渗透性随有效应力变化,并且与岩石空隙形状有关,岩石空隙形状包括三重孔隙介质,分别为基质孔隙、裂缝孔隙和管道状孔隙。
Variety of permeability with effective stresses has relation with pore shape which includes tri-porosity media, fractured rocks, porous rocks and capillary rocks.
影响高强度钢在水介质中的应力腐蚀和腐蚀疲劳裂缝萌生和扩展特性的因素甚多。
There are some factors which influence the characteristics of initiation and propagation of stress corrosion cracking and corrosion fatigue cracking in high-strength steel in a watery environment.
本成果已在台站建设、资料分析、震源参数测定、油田裂缝定位和介质结构参数测定等方面发挥了作用。
This research achievement has been used in building seismic stations, analyzing data, locating fracture in oil field and determining parameters of seismic focus and of medium structures.
贝尔凹陷布达特群地层裂缝—孔(洞)双介质储集特征明显,裂缝和次生孔洞是布达特群潜山储集层的重要储集类型和储集空间。
The fracture-hole double medium porosity mode develops distinctly in the research area, fracture and secondary bole-hole are the most important reservoir type and accumulating space for oil.
针对低渗透地层垂直裂缝井的渗流过程,考虑了启动压力梯度和介质变形系数的影响,建立了三线流模型。
In view of seepage process in vertical fracture well in low permeability reservoir, considering kickoff pressure gradient and media deformation coefficient, bilinear flow model is established.
海拉尔盆地苏德尔特地区布达特群是特低孔特低渗双孔隙介质储层,裂缝发育。
Budart Group of Sudert district in Hailaer Basin is a reservoir that has very low porosity, very low permeability, double pore system and it is rich in fracture.
确定储层主要类型有孔隙型,裂缝、孔洞及溶孔型,属于双孔隙介质储层。
Determine the main reservoir types include porous reservoir, cracks, holes and dissolved pore reservoir, which is the double-porosity medium reservoir.
滑溜水虽然比其他压裂液损害程度小,但也容易导致支撑剂在近井带的裂缝底部发生沉降,并非有效的携砂介质。
Slickwater, while less damaging than other fluids, is an ineffective fluid transporter that leads to proppant settling on the fracture bottom close to the wellbore.
根据裂缝性低渗透的渗流特征和裂缝分布特点,建立了裂缝性低渗透油藏渗流等效连续介质模型,编制了相应的裂缝性低渗透油藏数值模拟软件。
According to seepage characters and fissure distribution in fractured low permeability oil reservoir, equivalent model to simulate the fluid flow in fractured reservoir was set up.
为此采用拟双重介质模型模拟该类油藏:好储层对应裂缝系统,差储层对应基岩系统,但双重介质间窜流量考虑了储层之间的有效接触面积。
Therefore dual medium model was used for the reservoir simulation, where good reservoir was corresponded to fracture system and poor reservoir was to matrix system.
具有水平对称轴的横向各向同性(HTI)介质模型是用来描述含有平行垂直裂缝油气藏最简单方位各向异性介质的模型。
Transverse isotropic model for HTI media with a horizontal symmetry axis is the simplest one used to describe the transverse isotropy of the fractured reservoirs containing parallel vertical cracks.
为进行连续介质到非连续介质转化的数值模拟,实现结构破坏过程的仿真分析,将固定和旋转的弥散裂缝模型与变形体离散元方法结合应用于混凝土、岩石等准脆性材料的受拉开裂过程分析。
Fixed and rotating smeared-crack models based on a deformable distinct element method were developed to analyze the fracture of quasi-brittle materials such as concrete and rock under tension.
讨论了溶洞和裂缝无因次渗透率模数、介质间窜流、弹性储容比、外边界条件及表皮系数对压力响应的影响。
Effects of permeability modulus, interporosity flow parameter, storativity-ratio, outer-boundary and skin parameter to the pressure response are discussed.
研究结果表明,在很大的轴向水平压力作用下,介质会产生间隔的拉伸裂缝,形成分层断裂现象。
It is shown that the interval tension fracture would occur repeatedly under large axial compression stress, which forms the layered failure.
计算表明:考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量,当净压力较高时,二者可相差10倍之多。
The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.
计算表明:考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量,当净压力较高时,二者可相差10倍之多。
The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.
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