Thus reducing acid concentration or the fluid volume will be benefit for rock structure protection, preventing formation collapse and particle migration in near - wellbore region after acidizing.
降低酸液浓度和用量有利于保护岩石骨架，避免近井眼岩石酸化后造成孔隙坍塌和加速微粒运移。
The hot trail of material descending to the south forms a large distributed deposit, indicating a recent collapse of the lava dome and formation of a large debris avalanche.
从南坡坠落的拖尾熔岩，形成巨大的分散式沉积物，表明熔岩穹丘最近发生了崩塌，形成巨大的岩屑崩落现象。
It is believed there may be many different formation mechanisms including ancient magma flows and the collapse of subterranean lava tubes.
据信可能是由于多种原因造成的，包括古岩浆流动和地下熔岩道的崩塌。
The most common surgical treatment in use today perforates the wall of the eye, often resulting in collapse of the eyeball, infection, cataract formation and other complications.
当今最常见的外科治疗是在眼球壁上打孔，这通常会导致眼球塌陷、感染、形成白内障及其他并发症。
Methods of tunnel excavation in unconsolidated formations and the collapse zone treatment are intro-duced according to the formation properties fo exit section of Yangzong No.
针对阳宗海一号隧道出口段的地层特点，介绍了在松散土体地层中遂道施工方法的选择及在施工中出现坍塌的处理方法。
The study results show that the activity of underground water plays a key role in the whole process from the cavity formation to the occurrence of ground collapse.
研究结果表明，地下水的活动在土洞的形成到地表塌陷产生的全过程中起着关键性的作用。
This paper briefly described geological environment and characters of collapses, analyzing condition and mechanism of collapse formation.
本文阐述其地质环境、塌陷特征，分析塌陷形成条件，探讨其形成机理。
The model discussed is shown to simulate much of the important physics of a LSC explosion including: liner collapse, jet formation and elongation, and "body shrinked" phenomenon of a LSC slug.
模型探讨了线型聚能装药爆炸的诸多重要物理特性，如药型罩的压垮、射流形成和拉伸以及杵体的“体缩”现象。
The formation of land collapse is related to the huge empty area, geological structure, Strata and rock physical and mechanical properties and weather, hydrology.
塌陷区的形成与矿山存在巨大规模的采空区、塌陷区所处的地质构造、地层岩性及其物理力学性质和气象、水文地质条件这几个因素有关。
In time and space, the whole process of karst collapse can be divided into two phases: inter collapse and surface collapse in term of the formation of the critical soil hole.
以临界土洞为界，岩溶塌陷的整个发育形成过程从时间和空间上划分为内部塌陷和地表塌陷两个密不可分的阶段。
According to development data and the logging data, this paper studied the distribution of crustal stress and set up the collapse pressure model and formation fracture pressure prediction model.
根据测井资料和开发资料研究群库恰克地区区块地应力分布大小，建立了研究区块地层坍塌压力、地层破裂压力预测模型。
Methods of tunnel excavation in unconsolidated formations and the collapse zone treatment are intro-duced according to the formation properties fo exit section of Yangzong No. 1 Tunnel.
针对阳宗海一号隧道出口段的地层特点，介绍了在松散土体地层中遂道施工方法的选择及在施工中出现坍塌的处理方法。
The detonation of explosive, the interaction of the explosive with the metal liner, the collapse of the liner, and the formation of the jet and slug were taken into account in the models.
在模型中考虑了炸药爆轰、金属的驱动、药型罩压垮以及射流和杵体的形成过程。
So in such a formation construction, it is important to use the technology of drilling mud back to tank to balance the pressure of the loose layer and prevent the borehole collapse.
所以在这种地层中施工，利用泥浆回灌钻孔技术有效地平衡松散层压力不使其垮塌尤为重要。
Very severe problems during drilling were circulation loss and borehole collapse because of formation fracture growing, and drilling operation was very difficult.
该气田地层裂缝发育，钻井过程中井漏和井塌问题非常严重，钻井作业十分困难。
Characteristics, formation condition, and countermeasures of bank collapse of the Changjiang River in Anhui Province have been studied.
文章根据遥感影像和野外调查，对长江皖江段的崩岸特征、崩岸形成条件和治理对策进行了研究。
The formation mechanism is the flowing water trace to the source erosion-rock collapse-ancient slope withdrawal.
形成机制是流水溯源侵蚀—岩石块体崩塌—谷坡后退。
Its result is coincident with that of simulating test of casing collapse very well. This 3-d physical model considers factors of formation, casing program and corrosion etc.
该空间力学模型考虑了地层因素、井身结构因素、腐蚀因素等，其计算结果与套管抗挤毁的模拟试验结果非常吻合。
A new type shale inhibiter, KLG and sealing agent are used to seal fragile formation so that we can enhance safety density and solve the problem of hole collapse.
用新型防塌剂和KLG以及封堵材料复配使用，对破碎地层进行了有效封堵；
Based on the experimental observations, a plausible formation mechanism via continuous collapse self-assembly of nanoplatelets was proposed.
依据所得的结果推断反应是通过一个纳米片不断塌陷的过程形成的。
The coal bed has a low mechanical strength and porosity in comparison with the normal oil and gas formation, so it is easy to collapse and easy to be polluted.
煤层与一般油气层相比，机械强度低，孔隙度低，所以易坍塌、易污染。
As mentioned above, it is thus evident that the effect of fish freshness on gel formation of carp surimi mainly manifested in gel collapse.
加热条件下，凝胶劣化程度随原料鲜度下降而明显加剧。 据此可见：鲜度对鲢鱼糜凝胶作用能力的影响主要表现在凝胶劣化方面。
It is indicated that the characteristics of overburden layer, development degree of karst and activities of groundwater have important influence on the formation of karst collapse.
结果表明，覆盖层特征、岩溶发育程度、地下水等对岩溶塌陷的产生有着重要影响。
With the incidence power gradually increasing, the beam will undergo optical collapse due to intense focusing, and then the formation of femtosecond multiple filamentation(MF) can be obtained.
继续增加激光入射功率时，光束因强烈聚焦发生崩塌而成多丝结构。
With the incidence power gradually increasing, the beam will undergo optical collapse due to intense focusing, and then the formation of femtosecond multiple filamentation(MF) can be obtained.
继续增加激光入射功率时，光束因强烈聚焦发生崩塌而成多丝结构。
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