新方法测井在碳酸盐岩潜山油气藏综合评价中的应用

碳酸盐岩储层具有各向异性和非均质性，仅仅利用常规测井系列难以满足地质任务的需要。针对碳酸盐岩潜山油气藏这种特殊类型油气藏的储层特征，在现有的测井资料基础上总结探讨碳酸盐岩地层中测井系列优选原则，对比分析常规测井资料的不足和局限性，分析测井系列优选的原则及系列优选后对解释工作的帮助及为勘探工作所起的作用，完善原有的解释标准，建立一套基于新方法的定性或定量的解释标准。采用MAXIS-500、C15-5700等测井仪器的成像测井、核磁共振测井及交叉偶极子声波测井等正确的测井系列和项目不仅可以节约生产作业成本，还可以用于测井精细解释。给出了华北油田碳酸盐岩潜山油气藏新方法测井实例。     

Biological monitoring of cadmium exposure and renal effects in a population group residing in a polluted area in China

In an area of China, not previously studied in detail concerning cadmium pollution and possible adverse effects on the kidney of exposed populations, concentrations of cadmium in urine as an indicator of renal accumulation of cadmium was studied and related to indicators of renal dysfunction in order to examine if a relationship could be documented. Cadmium concentrations in urine were analysed by graphite furnace atomic absorption spectrometry and urinary beta-2 microglobulin (UBM) and albumin (UALB) were measured as indicators of renal dysfunction, Rice samples and urine samples were obtained from three areas in Zhejiang province, China, representing a highly exposed area, a medium exposed area and a control area, respectively. Cadmium concentrations in rice were 3.70, 0.51 and 0.072 mg/kg for the heavily, medium polluted areas and the control area, respectively. Cadmium concentrations in urine (geometric means) were 10.7, 1.62 and 0.40 micrograms/l in the high, medium and control areas respectively. There was a clear increase in UBM and UALB in the heavily exposed group in comparison to the control group and a slight increase in the medium exposed group. There was a statistically significant dose-response relationship between cadmium in urine and beta 2-microglobulin excretion in urine, which is similar to what has previously been reported in other countries. The findings constitute the first report concerning a dose-response relationship in this population group in Zhejiang province in China.     

地下各种压力之间关系式的修正

目前在钻井工程中普遍采用的地下各种压力之间的关系式是不严格的，研究把岩石视为多孔介质，从多孔介质的角度出发，重新建立上覆岩层压力，孔隙流体压力、基岩应力之间的关系式，该式包含了岩石作为多孔介质的一个重要参数孔隙度Φ。     

葠窝水库坝体裂缝的治理

1971年　窝水库坝体存在210余条裂缝，1985年发展到800余条，总漏水量约1149m3／d．为治理坝体渗漏，1978年前曾采用过水泥灌浆和丙凝、环氧等化学灌浆对裂缝进行过处理，同时上游面采用过环氧橡皮涂贴等处理试验，效果均不明显．1981年普查，这些裂缝不但在数量上有所增加，而且长度、宽度、渗水量等问题也较前严重．因此于1985年进行了加固除险工程．治理措施渗漏治理最好位置在上游面，由于多数建筑物要带水施工，施工难度大而且投资也大．背水面施工由于水还在混凝土内部，同时由于冻胀重新产生裂缝而治不了本．因此在治理过程中采用“…     

An economic feasibility study for a broadband virtual pathSONET/ATM self-healing ring architecture

A ring architecture that uses the asynchronous transfer mode (ATM) virtual path (VP) concept to reduce the SONET ring cost in terms of bandwidth management is discussed. The add-drop multiplexer (ADM) proposed for VP ring architectures can evolve from existing SONET ADMs by replacing the STS-3 termination cards by the ATM STS-3c line cards. Existing standard self-healing schemes and protocol SONET rings can be applied to proposed ATM/SONET VP rings. A case study based on a BCC (Bellcore client company) ring network and the sensitivity analysis suggests that the proposed ATM VP ring architecture may be a cost-effective option for implementing the distributed ring grooming system at the DS 1 level. The proposed VP self-healing rings are not only used to carry existing DS 1 and DS 3 service, but can also be used to more cost-effectively consolidate switches for public-switched services and for SMDS, frame relay, and FDDI in metropolitan areas     

医用微型温度传感针的研制

介绍一种采用微细加工技术,将热敏电阻微型化制作的针体外径φ0.40mm的微型医用温度传感针的设计、结构、工艺、实验及临床应用,并展望其发展前景。     

HACCP在豆乳生产工艺中的应用研究

本文就豆乳生产过程中，在原料进货、贮存、产品生产和出场合格检验、产区卫生、员工培训等方面进行了危害分析，总结了豆乳生产中常见质量问题的主要原因，并提出了相应的预防措施和控制方法。     

地层密度估算及其应用

目前在进行储层预测和油气藏描述时,一般多采用地震反演技术,计算层速度,预测孔隙度、渗透率、饱和度等多种储层参数,进而获得储层的横向变化规律,达到预测油气的目的.然而,由于同一地震参数受多种地质因素影响增加了地质解释的多解性,以及由于在利用地震资料求取储层参数时,各参数间有一定的相关性,从而影响了预测效果.为此提出了一种从地震资料中提取地层密度参数的方法,以提高油气预测效果.本方法是应用AVO技术,在大于30°角的范围内结合密度测井资料反演地层密度参数.应用此方法对实际资料进行了试算,取得了一定的效果.     

稳频激光陀螺中闭锁阈值的变化

本文由腔反射镜反向散射标量理论与模耦合理论讨论激光陀螺在稳频时闭锁阈值、反向散射系数幅值及其位相与腔结构的关系,给出了相应的实验结果。