近年来,随着我国地表水监测方式和运营模式的更新,逐步建立了以自动监测为主的技术体系.为保障水质自动站能够更稳定运行,需要加强对采水单元配置的管护工作.

现阶段，随着科学技术的迅速发展，人们的生活越来越高，同时环境问题也日益加剧，并成为现阶段我国急需解决 的重要问题。环境的检测直接影响着环境质量，对此开展环境保护工作时，可通过环境监测的方式，对环境污染涉及的因素进行 检测，同时借助检测结果制定行之有效的解决措施，有效解决环境污染问题。就部分还未出现环境问题的区域，展开必要的环境 监测，从而防止出现环境污染现象。环境监测在环境保护过程中具备着关键作为，其为环境保护提供了重要数据，同时为国家环 保局做出合理解决措施提供了重要依据。所以，本文主要对环境监测在环境保护中的作用和应用进行了探讨，以供参考。

寻求泥页岩水化过程中其强度变化的规律是油气井井壁稳定性研究的重要内容之一,目前国内外相关研究根据分析方法,大致可以分为经典动力学法、微观图像分析法和在微观图像分析法基础上发展起来的混沌动力学分析法.而目前的研究几乎都是从经典动力学的决定论观点出发,试图给出泥页岩水化对井壁稳定性影响规律,目前对这一过程仍然有很多机理问题认识并不彻底.由于泥页岩水化影响强度变化的过程表现出明显的混沌动力学系统所具有的特征,所以依据非线性混沌动力学分析理论,建立泥页岩井壁稳定非线性混沌动力学计算模型将是一条分析泥页岩井壁稳定性问题的有效途径.

针对铜陵西湖湿地公园水环境质量现状进行分析,结合西湖湿地公园水环境概况总结了西湖湿地公园水环境监测策略:其内容主要有水环境状态健康模型设计,水环境过程健康监测指数设计,水环境健康综合评价模型的设计.希望通过对这些内容的分析,为铜陵西湖湿地水环境监测工作提供一定帮助.

为满足水泥行业新排放标准(GB 4915-2013)要求,积极响应国家大力推进生态文明,建设美丽中国号召,进一步降低熟料生产线窑尾粉尘排放浓度,安徽铜陵海螺水泥有限公司对该公司一条日产5000吨熟料生产线(2号生产线)窑尾电收尘实施提标升级改造工作,以减少粉尘污染物排放量.利用升高电除尘器电场电压并通过相关改造可以较大幅度提高电除尘器对颗粒物去除能力,对目前大量存在的电除尘器进一步提能增效提供更多有益参考.

新疆风城油田浅层稠油油藏具有地层胶结疏松,开发层分散且含泥质夹层的特点,采用常规套管固井射孔完井及筛管完井时存在抽油泵砂堵砂埋、混浆原油堵塞油流通道的难题.针对这一难题,开展了稠油热采井绕油层固井技术研究,关键技术包括耐高温管外封隔器、热敏承压筛管和精准定位装置等,并制订了详细的绕油层施工方案,开展了现场应用.现场试验效果表明,含泥质夹层的浅层稠油油藏实施绕油层固井后,热敏筛管上、下端井段固井质量良好,耐高温管外封隔器坐封正常,达到了密封要求,为稠油井热采技术的顺利实施提供了有力保障和新的思路.

At present,the technology in developing shallow heavy oil reserviors still has some limitations.Reservior development of joint operation of SAGD horizontal well and vertical well in shallow heavy oil can effectively sovle this problems of insufficient submersion and well maintenance.In order to solve the drilling & completion technical difficulties of SAGD horizontal well and vertical well joint operation,the MGT magnetic navigation technique was used to meet the requirement of SAGD horizontal well trajectory control.Combined with this technique,large diameter casing forging and milling tools,and borehole enlarging tools ensure the connection between horizontal and vertical wells.Gravel pack completion was selected for SAGD horizontal and vertical wells.A suite of gravel pack completion technologies for SAGD horizontal well and vertical well joint operation is developed.

Using different measuring instruments will impact the measuring results in dust detection process.The errors from the different parts of measuring instruments and contribution rates are discussed.

根据现有重力式分离器和离心式分离器结构,应用CFD技术对其内部流场模拟,通过正交实验方法设计了不同工况下的数值模拟方案,应用极差分析法和方差分析法对影响除气效果的各因素进行研究。分析认为,影响除气效果的主要因素是气泡直径和钻井液黏度。根据数值模拟得到最理想的分离器结构和工况组建了室内实验台架。将实测数据与数值模拟结果进行了对比,分析结果表明,数值模拟得到的除气效率变化趋势与实测结果总体一致,验证了数值模拟方法的可行性。

The symptoms,treatments and preventive measures of two categories of common faults,physical and logical faults,occurred in PROFIBUS were described.The physical fault is mainly caused by wirings,network plugs,electromagnetic interference,communication-line terminals,repeaters and DP/PA coupler,while logical faults include hardware configuration fault and imcompatible function block responsible for dealing with communication failure.

Considering the coal mine safety situation in our country,this paper analyzes the main reasons of coal mine accidents according to accident-causing theory and describes the direct and indirect causes of accidents.The analyses of two cases of coal mine accidents provides prevention guidance of coal mine safety hazards.

Acid rain pollution in Tongling City is a serious problem.Evolution tendency of acid rain in Tongling is obtained from Spearman rank correlation and intuitionistic analysis of the numerical values based on the data of acid rain in Tongling area from 2000 to 2005 in order to find out some leading factors that affect the evolution tendency.It is found that the evolution tendency of acid rain is stable on the whole.Various factors affecting the acid rain are analyzed.The result shows that the pH value of precipitation is affected mainly by NOX emission and meteorological factors.