因此，有必要提出一个统一的裂缝闭合弯矩的计算公式。
So it's essential to bring forward a uniform formulas to calculate the crack closing moment.
水力压裂后，当微裂缝闭合时初始损伤带的诱导应力导致围岩应力重新分布。
The induced stress of initial damage zone results in the redistribution of surrounding rock stress when the micro-crack closes after hydraulic fracture.
在处理完成和裂缝闭合时，刻蚀后的表面提供了从储层至井筒的高导流能力的通道。
When the treatment is complete and the fracture closes, the etched surface provides a high-conductivity path from the reservoir to the wellbore.
在分析试验结果的基础上，提出了确定裂缝闭合弯矩(或应力)的力学模型和计算公式。
Based on the test results, the calculation model and the method for predicting crack closing moments (or stresses) are presented.
研究结果表明，采用高强度材料的预应力混凝土靠船桩具有良好的变形能力和裂缝闭合性能。
Test results showed that the PCBP with high strength material had good deformation ability, and that cracks could close when unloaded.
酸液向地层的滤失参数，是压裂酸化设计时确定裂缝几何尺寸及裂缝闭合时间最关键的参数之一。
Filtrateloss parameter of acidizing fluid is one of the key parameters to determine fracture geometry and the time of closed fracture in fracturing and acidizing design.
由于降低了酸蚀裂缝的有效闭合压力，砂岩储层注水井酸压比生产井酸压更可能获得成功。
The water injection well of sandstone reservoir may succeed more than production well if taking acid fracturing treatment because reducing of effect closed pressure on acid etching fracture.
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.
对于应力敏感性强的储集层，过低的井底压力降低了近井地带地层的孔隙流体压力，导致裂缝趋于闭合。同时，井壁失稳的可能性也大。
To strong stress sensitivity formation, low BHP reduces pore fluid pressure of near wellbore are which results in the closure of formation fracture.
介绍了对含闭合裂缝岩石试件在达到峰值压剪荷载时卸荷的裂缝断裂形态观察结果。
The observational result of crack fracture form for rock samples with close crack under unloading after the peak compression shear load.
用于水力压裂设计的一个分析参数。在闭合压力下，当在适当位置没有支撑剂的情况下，裂缝有效地闭合。
An analysis parameter used in hydraulic fracture design to indicate the pressure at which the fracture effectively closes without proppant in place.
该模型也同样适用裂缝自然闭合的情况。
The condition of natural fracture closure was adaptable in the model.
针对裂缝性储层所特有的变形特征，对裂缝性储层的应力敏感性及裂缝的闭合机理和规律进行了详细的研究。
Contrapose the fracture reservoirs' peculiar deformation characteristics, fracture's stress sensitivity, closure mechanism and closure law have been detail studied.
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.
通过对某高桩码头横梁裂缝深度的超声检测、骑缝取芯验证，说明对于活荷载引起的结构性裂缝，由于卸载后裂缝重新闭合，超声法检测存在局限性。
The ultrasonic method is unfit for inspecting the depth of crack originated from live load, since the crack will close after the load is removed.
酸液在裂缝壁面上进一步刻蚀形成较深的沟槽，即使在高的闭合应力条件下，酸蚀裂缝也能保持较高的导流能力，从而改善酸压效果。
Moreover, the acid will further etch the fracture face and create deeper channels which leads to high fracture conductivity and better treatment effect even under high closure stress.
低渗油藏存在压裂缝、天然开启缝、注水诱导缝、开启的天然闭合缝等多种裂缝。
There exist many fractures in a low permeability reservoir, such as fracturing fractures, naturally opened fractures, water-injection induced fractures and opening naturally sealed fractures.
随着生产时间的推移，经过压裂改造的储层又受到污染，早期人工裂缝部分闭合，产能大幅下降。
The fractured reservoir is contaminated again with production time pasting and it's off-take potential is greatly declined with some early stage fissure being closed.
随着生产时间的推移，经过压裂改造的储层又受到污染，早期人工裂缝部分闭合，产能大幅下降。
The fractured reservoir is contaminated again with production time pasting and it's off-take potential is greatly declined with some early stage fissure being closed.
应用推荐