基于SNMP分布式网络管理软件的开发

气象信息网络是气象部门进行信息传输的基础保障,结合气象信息与技术保障体系业务实际,开发适合市、县两级气象信息网络的全网监控系统是市级网管人员急需解决的一个问题.由于SNMP简单、易于实现、功能强大等特点,近年来得到了广泛的应用和发展.在简要介绍了SNMP的基本概念和代理模式后,对基于SNMP分布式网络管理系统的设计思路、开发方法进行了讨论.     

准噶尔盆地玛页1井长筒取心技术

玛页1井是新疆油田股份公司在准噶尔盆地西部隆起乌夏断裂带部署的一口风险探井,目的是探索风城组页岩油和常规高孔火山岩油藏的勘探潜力,全井设计取心275 m,实际取心445 m,该井具有取心井段长、致密泥岩地层取心效率低、裂隙发育段易堵心等特点。针对该区域地层特点及玛页1井长井段取心面临的技术难点,通过应用KT216型钻具长筒取心技术,配套井底动力高转速驱动金刚石钻进工艺,与邻井相比,玛页1井长井段取心钻进综合效率提高1.79倍,连续取心长度445 m,单回次取心长度41.97 m,创该区域历史最高纪录,可为后续该区域长井段连续取心实施提供参考和借鉴。     

半干旱草原浅覆盖区手持钻机化探取样技术的应用及探索

浅层钻探技术是覆盖区化探取样技术研究的新方向。手持钻机是轻便钻机的一种。为了探索手持钻机的化探取样效果,以内蒙古拜仁达坝银铅锌矿区为代表的大兴安岭南部半干旱草原浅覆盖区作为研究区,采用回转式和冲击式手持钻机开展浅钻化探取样试验,分析该方法相对于常规化探方法的优势。结果表明,浅钻化探取样具有方便快捷、效率较高、成本较低等优点。通过对比两类钻机的钻进、取样工艺及效果,分析总结两类钻机对于草原覆盖区不同覆盖物的适用性及存在问题,为覆盖区浅钻化探技术和取样钻机的发展和推广提供借鉴和参考。     

钻井提速用振动冲击工具研究进展

振动冲击工具作为降本增效的有效手段之一,正在得到行业内的广泛认同和重视。本文通过详细列举轴向冲击器、扭转冲击器和复合冲击器等工具的最新研究进展,可以看出振动冲击工具通过合理利用泥浆水力能量并将其转化为冲击破岩能量,有效提高了破岩效率,改善了钻头破岩环境,降低了破岩阻力。并根据现场应用情况来看,可以不同程度地提高钻井过程中的机械钻速,缩短钻井周期。     

螺杆钻进工艺在青海共和干热岩GR1钻井中的应用

本文重要介绍了转盘(顶驱)+螺杆钻具复合钻进工艺在干热岩钻井中的应用。为进一步提高干热岩钻井施工效率和减少孔内事故,在青海共和干热岩GR1井进行了转盘+螺杆钻具复合钻进应用,根据现场高温井况下螺杆钻具的工作特性,改进优选了螺杆钻具的耐高温橡胶和转子定子的配合间隙,是螺杆钻具复合钻进工艺在深孔高温干热岩钻孔(孔深3705m,孔底温度236℃)施工的首次成功尝试,并取得了良好效果,经受住了硬岩和高温的考验,为进一步改进螺杆钻具在高温井况下的应用提供了宝贵的现场施工经验,也将为我国干热岩科学钻探与深部地热资源勘探提供新的技术支撑。     

东海西湖井身结构深度优化技术及其应用

东海西湖地区深部地层具有研磨性强,可钻性差,机械钻速低,且存在异常高温高压等特点。通过不断探索、实践井身结构优化技术,形成了东海近几年较为固定的探井井身结构。但表层?444.5 mm井眼再加速遭遇“瓶颈”,常压深井井身结构仍有优化空间。随着东海钻井技术的不断进步及油气资源勘探开发的需求,水平井及大斜度井的数量在不断增多,而开发井?215.9 mm井眼水平段?177.8 mm尾管下入困难。因此,需要进一步对东海西湖凹陷区域井身结构进行深度优化。针对以上难点,研究形成了表层井眼尺寸优化技术、深井井身结构简化技术及开发井尾管尺寸优化技术。现场试验应用表明,钻井提速效果明显,为后续井的井身结构继续优化奠定了基础。同时也降低了深部井段复杂情况出现的概率,增大了探井套管和井眼环空间隙,为后续作业提供了便利,也为复杂地质条件下深井和超深井的井身结构的设计提供了新的思路。     

双管双动取心钻具异径接头的改进

介绍了在河北衡水水文地质科学钻探中对双管双动取心钻具异径接头所做的改进及取得的效果。     

Array processing-a new method to detect and correct errors on array resistivity logging tool measurements

In recent years more and more multi-array logging tools, such as the array induction and the array lateralog, are applied in place of conventional logging tools resulting in increased resolution, better radial and vertical sounding capability and other features. Multi-array logging tools acquire several times more individual measurements than conventional logging tools. In addition to new information contained in these data, there is a certain redundancy among the measurements. The sum of the measurements actu- ally composes a large matrix. Providing the measurements are error-free, the elements of this matrix show certain consistencies. Taking advantage of these consistencies, an innovative method is developed to de- tect and correct errors in the array resistivity logging tool raw measurements, and evaluate the quality of the data. The method can be described in several steps. First, data consistency patterns are identified based on the physics of the measurements. Second, the measurements are compared against the consis- tency patterns for error and bad data detection. Third, the erroneous data are eliminated and the measure- ments are re-constructed according to the consistency patterns. Finally, the data quality is evaluated by comparing the raw measurements with the re-constructed measurements. The method can be applied to all array type logging tools, such as array induction tool and array resistivity tool. This paper describes the method and illustrates its application with the High Definition Lateral Log (HDLL, Baker Atlas) instru- ment. To demonstrate the efficiency of the method, several field examples are shown and discussed.     

SSZ-1型双管双簧海底振动取心钻具

针对海底振动取样的一些特殊情况,介绍了自行研制的适用于海底振动取样的SSZ－1型双管双簧取心钻具，分析了其结构原理及对海底取的适应性。     

A new exploration tool: Quantitative core characterization

We will describe a new laboratory system which was designed to be highly automated and portable while maintaining quality. Driving this design was the recognition of the temporal dependence of physical properties. It becomes apparent that some sedimentary rocks, particularly shales, degrade and disaggregare so completely that mechanical or elastic properties cannot be measured. This temporal dependence displays a time scale much shorter than normal weathering but greater than the time for stress relief. A system was designed to permit field characterization of freshly recovered core material. A benefit of automation and portability is a marked increase in measurement efficiency. The attributes of this system permit rapid characterization of a large number of fresh cores in remote, frontier exploration areas. This feature can significantly reduce prospect evaluation time. Statistically significant rock property databases can be created in a short period of time.