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浏览/检索结果: 共48条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Study on borehole temperature distribution when the well-kick and the well-leakage occurs simultaneously during geothermal well drilling 期刊论文  OAI收割 GEOTHERMICS, 2022, 卷号: 104, 页码: 14 作者:  Zhang, Zheng;  Wang, Xin;  Xiong, Youming;  Peng, Geng;  Wang, Guorong   |  收藏  |  浏览/下载：20/0  |  提交时间：2023/11/21 Drilling  Well-kick  Well-leakage  Well temperature   Regulation rule of cellulose nanocrystals on thixotropy of hydrogel for water shutoff in horizontal wells 期刊论文  OAI收割 COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2022, 卷号: 643, 页码: 9 作者:  Huang, Feiyang;  Lv, Junsong;  Li, Hang;  Xu, Shiyu   |  收藏  |  浏览/下载：4/0  |  提交时间：2023/11/21 Thixotropy  Horizontal well  Water shutoff  Hydrogel  Temperature  Inorganic salts   Characteristics and formation mechanism of the Olkaria geothermal system, Kenya revealed by well temperature data 期刊论文  OAI收割 GEOTHERMICS, 2021, 卷号: 97, 页码: 17 作者:  Shi, Yizuo;  Rop, Eric;  Wang, Zecheng;  Jiang, Guangzheng;  Wang, Shejiao   |  收藏  |  浏览/下载：30/0  |  提交时间：2022/07/04 Olkaria geothermal system  Kenya rift  Well temperature log  Conceptual model   A novel inversion approach for fracture parameters and inflow rates diagnosis in multistage fractured horizontal wells 期刊论文  OAI收割 JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2020, 卷号: 184, 页码: 13 作者:  Luo, Hongwen;  Li, Haitao;  Tan, Yongsheng;  Li, Ying;  Jiang, Beibei   |  收藏  |  浏览/下载：32/0  |  提交时间：2021/05/25 Inversion model  Distributed temperature sensing  Fracture parameters  Inflow rates  Markov Chain Monte Carlo  Multistage fractured horizontal well   Construction of Deep Thermal Models Based on Integrated Thermal Properties Used for Geothermal Risk Management 期刊论文  OAI收割 MATHEMATICAL GEOSCIENCES, 2019, 卷号: 51, 期号: 3, 页码: 295-317 作者:  Liu, Hejuan;  Nasr, Mather   |  收藏  |  浏览/下载：9/0  |  提交时间：2020/04/08 Thermal conductivity  Radiogenic heat production  Well logs  Equilibrium temperature  Heat flux   Heat Transfer Behaviors in Horizontal Wells Considering the Effects of Drill Pipe Rotation, and Hydraulic and Mechanical Frictions during Drilling Procedures 期刊论文  OAI收割 ENERGIES, 2018, 卷号: 11, 期号: 9, 页码: - 作者:  Chang, Xin;  Zhou, Jun;  Guo, Yintong;  He, Shiming;  Wang, Lei   |  收藏  |  浏览/下载：38/0  |  提交时间：2020/04/08 heat transfer  wellbore temperature  drill pipe rotation  friction  horizontal well   Design and experimental research of a new type focus mechanism used in space-based telescope (EI CONFERENCE) 会议论文  OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China 作者:  Wang D. 收藏  |  浏览/下载：37/0  |  提交时间：2013/03/25 The position of focal plane will be changed because of temperature fluctuation and vacuum environment. In order to make the telescope work well  positioning accuracy of the mechanism is 0.008mm. The performance satisfies the need of precision  a focusing mechanism is needed. To majority of large space-based telescopes  and the scheme design is reasonable and practicable. 2012 IEEE.  the general way to do this would be to use a reflector  which was located in the backfocal distance. One of typical schemes of this mechanism was introduced  however  because of the big axial size  the mechanism can't be used when the size of the enclosure was limited. A new type of focusing mechanism was introduced  which has such advantages of small size  high accuracy and low mass. The design and test methods had been discussed. According to the results  the repeatability positioning accuracy is 0.0025mm   Magnetic phase diagram of the layered superconductor Bi2+xSr2-xCuO6+delta(Bi2201) with T-c approximate to 7 K 期刊论文  OAI收割 SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2012, 卷号: 25, 期号: 10 Salem-Sugui, S; Alvarenga, AD; Mosqueira, J; Dancausa, JD; Mejia, CS; Sinnecker, E; Luo, HQ; Wen, HH 收藏  |  浏览/下载：28/0  |  提交时间：2013/09/18 HIGH-TEMPERATURE SUPERCONDUCTORS  FLUCTUATION-INDUCED DIAMAGNETISM  II SUPERCONDUCTORS  SINGLE-CRYSTALS  CRITICAL-FIELD  NORMAL-STATE  WELL  DEPENDENCE  TRANSITION   Design and simulation of CMOS star sensor lens with large relative aperture and wide field (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China Zhong X.; Jin G. 收藏  |  浏览/下载：60/0  |  提交时间：2013/03/25 A 50mm focal length  F/1.25  Gaussian type optical system is designed in this paper  which has 20field of view. Actual star image adding optical cross-talk effect of CMOS(Complementary Metal Oxide Semiconductor)  detector is simulated by non-sequential ray tracing in ZEMAX optical design and analysis software to evaluate its performance. The distortion relative to image spot centriod is introduced and calculated by simulated star images  which is less than 0.03% of lens in this paper. Thermal adaptability is discussed by opt-mechanic thermal analysis  which shows the RMS spot radius of marginal filed changes less than 0.7m under 10C temperature gradient  and changes less than 1m during homogeneous temperature changing from 40C to 40C. The results of analyses and simulations show the design of this lens can achieve the requirement of high precision CMOS star sensor well. 2011 IEEE.   Performance test of steel tube enclosed thermistors in air temperature measurements (EI CONFERENCE) 会议论文  OAI收割 3rd International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2011, January 6, 2011 - January 7, 2011, Shanghai, China 作者:  Yang H.;  Yan F.;  Yan F.;  Peng J. 收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25 The performances of two steel tube enclosed precision thermistors are tested in a well controlled air environment to determine if the thermistors have enough accuracy for 0.01C levels of air temperature gradient measurement. Three Fluke's 5641 and three 5610 thermistors were tested for 24 hours in Fluke's 7008 calibration bath in the first step. In the second step  the performances of these two thermistors in steady state and transient state air temperature environments were tested for 8 hours separately. The results illustrate that  two of the 5641s were airproofed in a temperature well controlled tube  when steel tube enclosed precision thermistors are used in air temperature measurement  there are unstable departures from each other with a maximum 8.8 mC in constant air medium and 27 mC in temperature changing air medium. The transient-time errors are too large to show the true amounts of temperature changes for air temperature measurement. 2011 IEEE.