助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   fracturing criterion 的翻译结果: 查询用时:0.192秒
图标索引 在分类学科中查询
所有学科
地质学
地球物理学
更多类别查询

图标索引 历史查询
 

fracturing criterion
相关语句
  破裂准则
     Mohr Coulomb fracturing criterion is modified while under ground pressure is taken into consideration.
     考虑到矿山压力的作用,修正了莫尔—库仑破裂准则
短句来源
     In this paper, some questions about the method are discussed, such as, determination of characteristic parameters of pressure fracturing, three-dimensional geostress measurement, direction of breaking fracture, fracturing criterion and axial direction of borehole which is not a direction of principal stress and others.
     本文探讨了该方法的几个关键性问题, 例如压裂特征参数的取值, 三维地应力测量, 压裂缝的方向, 破裂准则和钻孔轴向不是主应力的一个方向等问题。
短句来源
  相似匹配句对
     S. criterion.
     S. 分离准则确定。
短句来源
     On the Mode and Criterion of Rock Failure in Hydraulic Fracturing Tests
     水压致裂试验中岩石的破坏特性及判据
短句来源
     Study on Breaking Criterion of Geostress Measurement by Hydraulic Fracturing Technique
     水压致裂法地应力测量破裂准则的探讨
短句来源
     Technology Criterion
     “标准专项”为何列入国家重大科研课题
短句来源
     Mechanism of repeated fracturing
     重复压裂机理研究
短句来源
查询“fracturing criterion”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


This paper discusses fracture mechanism of oil/gas bearing formation with both linear elastic mechanics of fracture and rock mechanics. By analysing the formation stress at the bottom of a wellbore (with the effect of both static stress field and kinetic stress field of the earth taken into consideration) this paper establishes the stress intensity factors formulas under the action of both formation stress and fluid stress, which is based on the fact that natural micro-crack exists in the formation rock. On...

This paper discusses fracture mechanism of oil/gas bearing formation with both linear elastic mechanics of fracture and rock mechanics. By analysing the formation stress at the bottom of a wellbore (with the effect of both static stress field and kinetic stress field of the earth taken into consideration) this paper establishes the stress intensity factors formulas under the action of both formation stress and fluid stress, which is based on the fact that natural micro-crack exists in the formation rock. On the basis of fracturing criterion, models for computing the formation fracturing pressure have been obtained and the reliability of those models have been proved through actural computation and comparison of several wells in central Sichuan Oil Field.

本文综合应用断裂理论、岩体力学等知识,对油气层压裂机理进行了有益的探讨。通过对油气井井底的地应力静应力场,和动应力场的分析,考虑地层岩石存在天然微裂隙这一客现事实。建立了地应力与压裂液共同作用时,地层裂隙的应力强度因子表达式;根据断裂判据,推得了地层破裂压力计算模型;并对四川油田川中矿区几口井进行了实算与电算对比,验证了模型的可靠性。

In this paper the possibility of hydraulic fracture of an earth dam with deep cut-off wall is studied by centrifuge model test and finite element analysis The fissured bedrock as that encoutered in Teton dam which was'failed in 1976 is modeled by a concret mass and a tiny pipe is buried to divert the water from reservoir.The numerical analysis is based on the effeCtive stress approach.In spite of notable arch effect on the cut-off wall, neither hydraulic fracture was observed in the model test nor a low stress...

In this paper the possibility of hydraulic fracture of an earth dam with deep cut-off wall is studied by centrifuge model test and finite element analysis The fissured bedrock as that encoutered in Teton dam which was'failed in 1976 is modeled by a concret mass and a tiny pipe is buried to divert the water from reservoir.The numerical analysis is based on the effeCtive stress approach.In spite of notable arch effect on the cut-off wall, neither hydraulic fracture was observed in the model test nor a low stress zone with tensile effective stress has been detected in the FEA.Therefore,It is concluded that the total stress approach for hydraulic fracturing criterion used to predict the occurence of hydraulic fracture overestimates the possibility of hydraulic fracture.

本文介绍了深截水槽心墙砂壳坝的离心模型试验及其有限元数值模拟的结果.截水槽两侧的混凝土基座内设有水管,以模拟Teton坝基岩内裂隙的作用.数值分析用有效应力法,同时采用双屈服面弹塑性模型和损伤断裂模型.分析所得的应力和变形与实测值有一定出入,但两者的基本趋势一致.试验与分析结果均表明,虽然截水槽内拱效应很明显,但兀水力劈裂迹象.由此得出结论,深截水槽心墙坝并不见得一定有水力劈裂的危险,流行的总应力判别法过大估计了水力劈裂的可能性.

The fracturing of highly diviated well was analyzed with three dimensional poroelasticity,Some formulas for determining the stress components around the borehole were derived.A new hydraulic fracturing criterion for highly deviated wells was developed,with consideration of the mechanisms of horizontal fracturing and vertical fracturing.

应用多孔弹性理论,导出了斜井井壁周围的应力表达式,并提出了新的斜井水力压裂裂缝起裂判据,它不但考虑了垂井裂缝产生的机理,而且还考虑了水平缝产生的机理,新的斜井水力压裂起裂判据比以往的斜井水力压裂裂缝起裂判据更具合理性.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关fracturing criterion的内容
在知识搜索中查有关fracturing criterion的内容
在数字搜索中查有关fracturing criterion的内容
在概念知识元中查有关fracturing criterion的内容
在学术趋势中查有关fracturing criterion的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社