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- The character of the natural fracture development and nowaday earth stress affects not only hydraul... 油井射孔段天然缝产状、发育程度、水平应力大小直接影响着压裂施工压力。
- Core recovery of deep broken limestone formation is very low due to the influence of its lithology, formation dip and tectonic earth stress. 深井灰岩破碎地层取心效果受地层岩性、地层倾角以及构造地应力对地层的挤压作用等因素影响较大,采用常规取心工具收获率低(邻井当深3井取心收获率仅有23%25)。
- In this paper, the principle, method and results of the earth stress measurement by hollow inclusion gauge at Renlou Coal Mine are introduced. 本文介绍了空心包体应力解除法的基本原理和方法,并利用其对任楼煤矿地应力进行了测量。
- The pattern of multiple-fractures depends on the likelihood of the join-up of minor fractures on which the status of earth stress has weighty effect. 分析认为，多裂缝的格局取决于小裂缝能否顺利连接，地应力状况对裂缝的连接与起裂方位有重大影响；
- Principles of microseismic monitoring in imaging of hydraulic fracturing, monitoring of waterflooding front, and dynamic monitor of reservoir and earth stress were discussed. 重点介绍了在油田中用微地震监测技术进行水力压裂裂缝成像、水驱前缘监测、储层描述和地应力监测的应用原理。
- The feasibility to simulate the initial earth stress of the large underground structure by using the algorithm of dynamic relaxation and system damping in LS-DYNA is investigated. 摘要主要研究使用LS-DYNA的动力松弛算法和系统阻尼算法相结合来求解大型地下结构初始地应力状态的可行性。
- To find out thoroughly the reasons of slope's unstability, earth stress has been measured at slope by means of technique of temperature compensation and automatic recording. 测量应用采用完全温度补偿技术和自动化记录系统的空心包体应变计进行，得出了该地区地应力分布的基本规律。
- Therefore, by virtue of finite element method, the idea, which can take rock gravity, tectogenesis and landform denudation into account, to get initial earth stress field of rock mass was presented. 以有限元数值分析为基本手段，提出了可以考虑构造运动、岩体自重和地形剥蚀等多因素的岩体初始地应力场反演思路。
- Single well zonal earth stress and rock mechanic parameters are calculated for limited entry fracturing in Well Bin670 and for determination of the extreme injection pressure in block Bin660-665. 滨670井、滨660-665区块进行了单井分层地应力及地层岩石力学参数分析计算,用于滨670井限流压裂设计以及滨660-665区块极限注水压力的确定,取得了理想的效果。
- Gas reservoirs are located kilometers deep beneath the earth's surface under great earth stresses, including the overburden stress and the horizontal stress. 深埋于地下几千米的油气藏受岩石上覆压力与围压作用。钻井后,井眼周围应力将重新分布。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- The attraction of the moon for the earth causes the tides. 月球对地球的吸引力造成潮汐。
- INFLUENCE OF FORMATION DIP ON EARTH STRESS 地层倾角对地应力的影响研究
- The earth is only a speck in the universe. 地球在宇宙中只不过是一个小点罢了。
- How on earth do they manage to rob the bank? 他们到底怎么抢了银行的？
- A number of satellites are now circling the earth. 一些人造卫星现在正环绕地球飞行。
- The machine cast up a big heap of earth. 机器卷起了一大堆泥土。
- The red sun lights up the sky and the earth. 红太阳照亮了天空和大地。
- Who on earth is that female he's with? 跟他在一起的那个女人究竟是谁?
- Antarctica is the loneliest place on earth. 南极是地球上最偏远的地区。
