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   截止 在 石油天然气工业 分类中 的翻译结果: 查询用时:0.135秒
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    By the end of 2005,the proved geologic gas reserves in total had been 4.92×1012m3,with gas production of 50 million m3 in 2005 and 60 million m3 in 2006 all over China.
    截止到2005年底,全国探明天然气地质储量4.92×1012m3,2005年全国天然气总产量已近500×108m3、2006年全国天然气总产量近600×108m3。
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    Acoustrc emission monitoring and stress test on high pressure natural gas globe valve during fatigue
    用声发射监测高压天然气截止阀疲劳的试验
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    According to result of third resource evaluation,the total conglomeration oil is 1.0747×108t, gas is 485×108m3.The transformation ratio of resource is only percent of 29.73 up to now.
    根据第三次资源评价结果中西部地区总聚油量为1.0747×10~8t,总聚气量为485×10~8m~3。 截止2003年中西部地区共探明石油地质储量3901×10~4t,天然气73.54×10~8m~3,资源转化率仅为29.73%。
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    Those technologies were applied to Chengdao reservoir for 249 jobs from September, 2001 to March, 2004, and the success rate arrived to 98.8 % with sand cut below 0.01% by the oil sample analysis, and the wells have worked well with average daily fluid rate of 66.77t/d, average fluid production strength of 4.48t/m. d each well.
    截止2005年2月,胜利埕岛油田海上防砂现场施工249井次,防砂成功率98.8%,油井生产效果较好,油样化验分析,含砂量均在0.01%以下,平均单井日产液能力66.77t/d,平均采液强度4.48t/m.
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    According to statistic data, by the ending of 2000 the produced geologic reserves of low permeability oil fields in china is 26.66 × 10~8t, accounting for 25.5% of the total produced reserves.
    据统计,截止2000年底,我国已经动用的低渗透油田地质储量为26.66×10~8t,占全部已动用储量的25.5%。
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Supervisory control and data acquisition (SCADA) systems provide the modern, efficient and effective method of controlling and monitoring pipeline operation. Use of radio links utilizing VHF and UHF frequencies is an economical method to extend pipeline SGADA systems into remote areas, where no other communication facilities exist, to operate block valves and pump stations and to provide mobile radio communications for maintenance crews, This paper provides the design criteria for engineering VHF and UHF propagation...

Supervisory control and data acquisition (SCADA) systems provide the modern, efficient and effective method of controlling and monitoring pipeline operation. Use of radio links utilizing VHF and UHF frequencies is an economical method to extend pipeline SGADA systems into remote areas, where no other communication facilities exist, to operate block valves and pump stations and to provide mobile radio communications for maintenance crews, This paper provides the design criteria for engineering VHF and UHF propagation paths for SCADA communications, and for mobile radio communications. The method is especially useful when line-of-sight clearance cannot be obtained above the surface of the earth for the propagation path.

监控和数据获取系统(SCADA)是监控管道运行的现代、高效和适宜的方法。采用甚高频和特高频无线电线路是将管道系统延伸到没有其他通信设施的遥远地区操纵截止阀、泵站以及向维修人员提供移动无线电通信的一种经济的方法。 本文提供了SCADA系统的VHF/UHF传播路径工程和无线电通信的设计标准。这种方法在传播路上对不能在地表面上获得视线余隙时特别有用。

metal casing is considered as an ideal conductor. The electromagnetic wavetransmitting in it is a kind of guided wave. Because of the conduction loss of the fluid in the well. nomatter what the wave's frequency is. the electromagnetic wave has not only amplitudeattenuation, but also wave motion, along the axis Now. there is no a seriousideal as cut-off frequeny which exists in ideal medium waveguide.

将金属套管看成理想导体,其中传输的电磁波为导行波.由于井内流体存在导电损耗,无论工作频率是高还是低,电磁波沿井轴的传输既有幅度衰减,又具有波动性质,已不存在严格的截止频率概念.图3参2

o determine the cut-off saturation of oil and water bearing zone is the key in determining the effective thickness of oil and water bearing zone. Relative permeability is used toestablish the relation between water producing rate and water saturation, so as to verify thecut-off saturation of oil and water bearing zone and its application result in Lin-nan OilField is given in this peper. This verification method proves the correctness of the cut-offsaturation obtained with the conventional method and help to...

o determine the cut-off saturation of oil and water bearing zone is the key in determining the effective thickness of oil and water bearing zone. Relative permeability is used toestablish the relation between water producing rate and water saturation, so as to verify thecut-off saturation of oil and water bearing zone and its application result in Lin-nan OilField is given in this peper. This verification method proves the correctness of the cut-offsaturation obtained with the conventional method and help to avoid any possible system errorin log interpretation.

郑全安·用相渗透率资料验证油水层界限.测井技术,1994,18(l):62~65在油、水层解释和有效厚度划分中,合理确定油、水层的判别界限(即油层含油饱和度的截止值)是问题的关键。本文以临南油田为例.讨论了利用相渗透率资料验证油、水层测井解释饱和度界限的方法。通过相渗透率资料的验证.深化了对油、水层判别界限合理性的认识,有助于避免油、水层界限制定工作中的失误。

 
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