裂缝的应力敏感性通过影响裂缝渗透率对裂缝产能产生影响。
Because fracture permeability is affected, productivity was effect by stress sensitivity too.
根据模拟实验,通过数学的推导,提出一种编制裂缝渗透率指示图的方法。
According to simulation test and mathematical derivation, this article proposes out a method to establish fracture permeability indicating chart.
在裂缝发育带水驱油的形式主要取决于孔隙渗透率、裂缝渗透率以及驱替压力的大小。
The water drive patterns in fissure developing zones mainly depend on whether pore permeability, fissure permeability and displacement pressure are high or low.
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.
对于圆柱状褶皱可以估算与褶皱有关的裂缝孔隙度和渗透率。
For a cylindrical fold, the average aperture and fracture permeability related can be estimated.
对于裂缝性低渗透储层,由于其基质孔隙度小、渗透率低,天然微裂隙成为决定压裂液滤失的主要因素。
Micro fissure is a significant factor for determining the fluid loss in low-permeability fractured reservoir, due to its small porosity and low permeability in the matrix.
裂缝不仅可以使孤立的孔洞得以连通,发育成有效的储集空间,大大提高基质渗透率,更是油气的主要运移通道。
Not only the fractures can connect the separated cavity to grow the effective reservoir space and improve the permeability of matrix, but also is the main path of petroleum migration.
利用岩心分析、测井、地震、薄片分析等静态描述手段测试并计算了基质的孔隙度和渗透率,得到裂缝的宽度、密度和方位等参数。
The porosity and permeability of matrix, and the width, density and direction parameters of fractures were obtained by core analysis, well logging, seism and thin section observation methods.
并且该模型对裂缝系统的相对渗透率不作取对角线的假定。
Relative permeability curve in fracture system without simplifying assumption is adopted in the model.
安塞油田坪北区油层渗透率特低,具有微裂缝,油井产量低等特点,为此,增加了油藏开发中的难度;
The oil reservoirs in Pingbei Area of Ansai Oilfield is difficult to develop because of its ultra-low permeability, micro-fracture, and low production of oil wells.
地下定向裂缝是低渗透率油气藏油气储集、运移的通道,对油气的开采有着重要的意义。
Directional fractures in formations are the passages through which hydrocarbon accumulates and migrates in low permeable reservoir, and they are very significant to hydrocarbon recovery.
鄂尔多斯盆地安塞特低渗透油田由于存在天然裂缝或人工压裂裂缝,造成了储集层平面渗透率的方向非均质性。
Ansai oil field in Ordos basin is a ultra low permeability reservoir with natural and induced fractures, which caused serious lateral heterogeneity of permeability in the reservoir.
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.
通过分析渗透率与应变之间的耦合关系,得到了裂缝性砂岩油藏流固耦合渗流计算的数学模型,并给出了计算方法。
By analyzing the coupling relationship between permeability and strain, a mathematical model and methods are deduced for calculation of fluid_solid interaction flow in fractured sandstone reservoir.
安塞油田坪北区是低孔隙度、低渗透率和具有微裂缝的岩性油藏。
Pingbei Area of Ansai Oilfield is a low porosity and low permeability lithologic reservoirs with micro-fractures.
碳酸盐岩油气藏在数值模拟的过程中往往缺少准确定量的裂缝模型,尤其是裂缝孔隙度和渗透率模型。
During the Carbonate gas reservoir's numerical simulation process, it is often short of exact and quantitative fracture model, especially porosity and permeability models.
致密岩层中由于大量裂缝存在形成了具有有效孔隙度和渗透率的储层。
Compact rock formation formed a available reservoir with effective porosity and permeability because there are a many of fractures in it.
随着油田开发的进行,地层压力逐渐下降,水平裂缝趋于闭合,渗透率大幅下降,严重影响了生产能力。
With continuing an oilfield development, its formation pressure tends to decline along with the horizontal fractures being closed, the permeability drawdown and the productivity being damaged.
因而油层厚度及与之有关的裂缝孔隙体积和渗透率也在一定程度上受到构造面主曲率的影响。
To certain extent, therefore, the thickness of the oil-bearing interval as well as the volume and permeability of the fracture porosity are also influenced by principal curvatures.
气测渗透率和微裂缝宽度、微观均质系数、相对分选系数和可动流体体积百分数等都有明显的幂律关系。
The effects of porous microstructure features on porosity and permeability, volume percentage of mobile fluid and pressure sensitivity were also analyzed.
得到了裂缝性低渗透储层岩心水相渗透率随回压的变化曲线。
The relation curves of water phase permeability of reservoir cores and back-pressure were obtained.
裂缝是低渗透储层的重要储集空间和渗透率的主要贡献者。
Fracture can be important reserving space and the main contributor to permeability in reservoirs.
页岩气储层的基质渗透率非常低,并且存在次生矿物填充的簇状“天然”裂缝。
The matrix of shale reservoirs is featured by extremely low permeability and there are clustered natural fractures filled with secondary minerals.
解释、拟合人工裂缝长度和储层渗透率等参数,有效评价压后增产效果。
Artificial fracture length and reservoir permeability and other parameters can be explained and matched. Stimulation effect after the fracturing can be evaluated effectively.
根据毛管压力、相对渗透率曲线形态及有关参数,对火烧山油田储层裂缝发育特点进行了研究。
On the basis of the shape of capillary pressure and relative permeability curve. and related parameters. the fracture characteristics of reservoir in Huoshaoshan oilfield were discussed.
经分析对比表明,通过实验筛选出的合理的酸液配方能较好的改善裂缝壁面附近地层的渗透率和支撑裂缝的导流能力。
Analyses and contrast shows that, the acid selected by experiment could improve the permeability nearby fracture surface and the fracture conductivity preferably.
在地应力的作用下,煤储层渗透率急剧下降,裂缝逐渐趋于闭合。
Under the effect of geostress, the coal-seam permeability decreases sharply and the fissure gradually tends closed.
定向地下裂缝是低渗透率油气藏油气的储集空间和运移通道,对油气的开采有着重要的意义。
The aligned fractures are the primary Spaces and transportation channels of hydrocarbon in low-permeable reservoir, the detection of which is the key to the exploration and development of hydrocarbon.
最终结果显示,RPM技术增加了裂缝的有效长度,提高了导流能力和渗透率,从而提高了产量和最终采收率。
As a result, RPM technology increases the effective fracture length, conductivity and permeability of the pack to hydrocarbons, leading to higher production and increased ultimate recovery.
最终结果显示,RPM技术增加了裂缝的有效长度,提高了导流能力和渗透率,从而提高了产量和最终采收率。
As a result, RPM technology increases the effective fracture length, conductivity and permeability of the pack to hydrocarbons, leading to higher production and increased ultimate recovery.
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