• 应力差较大压裂过程中相对变小

    During fracturing of thin layer with high stress difference of reservoir and restraining barrier, height and width of fracture will decrease compared to thick layer.

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  • 海拉尔油田布达压裂不易控制,压裂成功率

    There are some problems for fracturing, such as narrow induced fracture, uncontrollable fracture height and low success rate in Budate Group reservoir of Hailaer Oilfield.

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  • 现场实验表明,清洁压裂具有性能施工,携砂能力,可有效地控制

    Field using verified that the fluid possesses good gel breaking property, the operating friction value is low, the proppant carrying ability is strong and fracture length is in control.

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  • 分析比较了不同龄期不同初始比时普通混凝土开裂性能,并试验结果进行了对比。

    The finite element results and experimental results of the fracture properties of concrete with different ages and initial seam height ratios are compared.

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  • 真空平面玻璃作普通箱式太阳灶透明盖板箱式太阳灶的性能进行了实验研究。

    The performance of the box-type solar collector was investigated experimentally, the cover of which is a high-vacuum plane glass plate with a middle narrow slot.

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  • 看到导游的导游看到埋弧焊只有大约2

    The saw guides on the straight saw are only about 2 high.

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  • 角度的走向最大水平主应力方向一致时,后期水平应力对原生保持作用;

    When the high-angle fracture has the same direction with the maximum horizontal stress, the subsequent horizontal stress will preserve the primary fracture.

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  • 目的研究一种直接求取水力压裂支撑综合方法

    PurposeTo study an integrated method to calculate length, width is and height of the propped fracture directly.

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  • 模拟结果得出孔隙度2%时,电阻率泥浆(500欧姆·米)识别含有750条的微泥岩地层

    If fracture porosity is 2%, it was derived from the simulation result that using high-resistivity mud (500 Q -m) can identify shale fractured formation which includes 750 fractures or more.

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  • 无线电引信功率微波干扰能力为应用背景,采用基于时域有限差分方法(FDTD)电磁场仿真软件XFDTD6.0,数值模拟功率微波(HPM耦合特性

    To have radio fuze making better resistance to HPM jamming, the slot coupling characteristics of HPM pulse into cavity are studied by using the software XFDTD6.0 based on the method of FDTD.

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  • 技术具有、锯切效率、切片质量环境污染小、加工直径工件材料等优点

    The technology has the advantages of thin kerf, increased cutting speed, good quality, elimination of hazardous waste slurry and ability to machine harder brittle and bigger dimension materials.

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  • 类型包括角度直立剪切角度剪切角度南北向直立剪切

    There are abundant fracture types including high angle shearing cracks, middling or low angle shearing cracks, transmeridional high angle tension cracks and meridional vertical shearing cracks.

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  • 系统采用微机进行控制因此可靠性测量准确检查辊方便改善连铸钢坯质量

    Its control system utilizes microcomputer to control, so the results are of high reliability and measuring accuracy, handy to inspect and able to improve the quality of continuous casting.

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  • 通过室内研究现场试验采用”控砂比粒控等配套技术,有效控制了微裂压裂过程中的影响,提了压裂成功率

    After office study and field experiment, using suspend plug and high sand concentration with little ceramsite to control fracture, advanced fracturing success ratio.

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  • 对外墙板使用材料密封防水作法简便,具有工期质量、耐用年限长的优点

    As to the joints between exterior wall panels, waterproof sealant is adopted, which has such advantages as short working period, high quality and long service life.

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  • 虽然彼得一样。于是,她拿出针线盒来,把影子往彼得

    I shall sew it on for you, my little man, she said, though he was tall as herself, and she got out her housewife, and sewed the shadow on to Peter's foot.

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  • 虽然农舍外墙院子里的的玻璃,沿街立面主要是封闭的,只有窗户垂直结构

    While the facades towards the farmhouse and the yard are glazed full height, the street facade is predominantly closed and only structured by vertical window slits.

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  • 点火器具有燃烧效率火焰长度炉膛温度分布合理等优点。

    The igniter with multiple slit burner is characterized by its higher combustion efficiency, better adjustment of flame length, more rational temperature distribution in the furnace hearth.

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  • 研究区的角度垂直水平为主,多为构造

    The crack of study area mainly is high Angle crack, perpendicular crack and level crack, most of them are generate by structure process.

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  • 挑坎应用于拱坝孔后,其出射水流内外缘抛确定拱坝下游消垫塘长度重要依据。

    When the slit-type buckets are applied to the orifices in a high-arch dam, the nappes trajectory distance is basic to the design of the plunge pool.

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  • 通过常规流道中的沸腾传热系数比较得到环形流道中沸腾传热系数常规流道中的沸腾传热系数约1 5 %的结论

    It has been concluded that boiling heat transfer coefficient in narrow annular channel is 15 % higher than in conventional channel by comparison.

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  • 研究表明,截面中心线上速度梯形分布,窄边附近流速较低,中间;宽边完全加热时,流体不足以带出加热板发出热量,使得角部出现热集中现象;

    The results reveal that the velocity of the center of cross section is trapeziform, the velocity of about narrow side of the channel is lower, but the velocity of center is high;

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  • PAW2000管道位置自动焊机是管道焊接专用自动设备自动化程度,运行条件恶劣

    Pipeline all - position automatic welder is kind of special automatic machine for pipeline girth welding. It has high degree of automatization, and can be used in severe conditions.

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  • 如此卓著效率应当归功于低阻机翼前缘双开襟翼,以及马赫混合式翼梢小翼。

    This efficiency is due largely to the innovative design of the low-drag wing. This design includes leading-edge slats, double-slotted Fowler flaps, and high-Mach blended winglets.

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  • 如此卓著效率应当归功于低阻机翼前缘双开襟翼,以及马赫混合式翼梢小翼。

    This efficiency is due largely to the innovative design of the low-drag wing. This design includes leading-edge slats, double-slotted Fowler flaps, and high-Mach blended winglets.

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