本文介绍了长江航道疏浚工程的主要内容以及重要性,探讨了当前航道疏浚工程的计算方法,提出了常见航道疏浚工程基于环保理念引导下的施工技术.

以生物质硅炭(Si/CB)取代部分N550炭黑为补强剂、HNBR为基体制备了生物质硅炭改性的HNBR复合材料.研究了硅炭对HNBR的补强行为,高温真空介质中橡胶的热老化行为及主链老化结构的演变.与传统炭黑的增强效果相比,生物质硅炭增强的HNBR表现出更好的韧性、撕裂强度、较低的永久变形及高温力学性能.160℃下老化20 d,材料的拉伸强度保持率大于100％,生物质硅炭表现出较好的耐老化能力.链接—CN官能团的α-碳原子高温下易均裂氢原子生成自由基,连续加氢还原使—C N转化为—C NH,直至形成化学交联结构,导致橡胶的玻璃化转变温度升高.氢化丁腈的CN含量越低,耐老化能力越突出.依据分子主链老化的结构演变信息,提出了HNBR的可能老化机理.

针对长江航道治理过程中,护滩带工程施工期间出现的联锁块软体排施工中撕排问题进行全面分析,结合撕排过程及现象,对排体纵向抗拉强度进行核算,明确施工中发生撕排的主要因素,并提出了相应的解决对策,以期为长江航道施工提供参考.

随着社会经济的不断进步,我国对外贸易经济迎来了一个新的发展阶段,这也对铁路运输、航空等水陆交通运输、枢纽港口建设提出了更高的要求.作为一项重要的水利吹填技术,疏浚吹填对于确保港口航道码头正常运行有着极为重要的作用.此次研究以长江口北支河道某疏浚吹填中遇到的问题为例,引入数值模拟技术,对其施工技术进行分析,为相关行业提供借鉴.

随着我国社会经济的发展,港口工程也逐步成为经济领先发展的行业,对推动我国经济发展起到了重要作用.港口工程作为民生建设的重要工程之一,加强对混凝土施工质量的控制能有效推动港口工程的发展,提高工程质量和水平.因此,该文通过对控制港口工程的混凝土施工质量进行阐述,以期为更好地推动港口工程的发展提供更多的借鉴和参考.

在港口与航道工程中,为充分发挥工程的价值保证河段的通航能力,保证河段航道高效稳定的运行非常必要.本文将结合河段清淤对于提高航道通航能力的重要作用,对当前河段航道发生严重淤积的原因进行分析归纳,然后从工程和非工程措施两个方面谈谈治理河段航道淤积,提高通航能力的综合化措施.

1潜油电泵井下测试技术简介 随着油田开发的逐步深入,油气开采由自喷采油逐步转入机械采油方式,以此来提高采油速度.机械采油方式主要有有杆泵采油、潜油电泵采油、水力活塞泵采油以及螺杆泵采油等,其中潜油电泵方式采油是其中主要的一种机械采油方式.其扬程高、采液排量大,可以根据产液变化要求进行变频调速,且设备占用地面面积和空间小,因此得到了广泛的应用.一套标准的潜油电泵系统主要由七个部分组成,即潜油电机、保护器、油气分离器、潜油离心泵、动力电缆、控制屏和变压器,以及与其配套的有电缆护罩、接线盒、单流阀、泄油阀、井下测试装簧、扶正器等.

The Hala'alate mountain area is part of the mountain front thrust belt in the northwest margin of Junggar Basin,where the tectonic deformation is complicated.Based on interpretation of the three-dimensional seismic data,it can be divided into three segments.The structure of the Hala'alate mountain area is characterized by nappe-superimposed deformation in the western part,trust-superimposed deformation in the middle part,and trust-fold deformation in the eastern part.Tectonic evolution consists of three stages:extension-rifted stage (P1),strong thrust-nappe stage (Pz-T),weak compressional-thrust stage (J-K),uplifting erosion and strike-slip adjustment stage (Cz).To better understand the structural genetic mechanism,typical profiles of different segments in the study area were chosen to simulate the structural deformation processes.The experimental results show that the compress velocity and strength are the main controlling factors of strata and superposed extent.The location of ductile formations controlled the development sequence of the detachment fault and the thrust fault in different segments.The length of ductile formations controlled the scale of the detachment fault.

通过断层活动性分析、典型测线平衡剖面恢复、伸展率统计等方法,对济阳坳陷新生代盆地结构的静态特征和演化过程进行了详细分析,从凹陷内部结构差异、不同凹陷间结构差异、区域结构差异3个层次上对济阳坳陷盆地进行了对比分析并探讨了成因机制.研究结果表明:凹陷内部及不同凹陷间结构的差异主要受控于北西向控盆断裂以及不同演化阶段控盆断裂体系的发育,而区域结构差异主要受控于板块俯冲方式转变下的郯庐断裂带由左旋走滑到右旋走滑的转型以及深部地幔物质由上涌到下沉的转变.

注水开发是目前胜利埕岛油田最主要的驱油手段,地层的不均质性决定了要实施分层注水,陆地传统应用的分层注水测调工艺工作量大,不能满足海上特殊的施工要求,新研发的一体化测调工艺采用边测边调的方式实现对注水井的测试与调配,较好的解决了这一难题.测调一体化配水器是整个工艺中一个重要的组成部分,其可调性与可靠性直接影响到整个工艺的性能.先后研发拉套式、旋转套式和阀片式三种结构形式,以更好的适应井下工作环境.

岩心分析是石油勘探开发中的一项重要的工作，是获取油气层特征的主要方式之一，分析了阀值、边缘检测等算法的原理与应用实例，阐述了基于特定理论的岩心粒度分割算法特点与优势，并对各种算法进行了分析对比。

氢化丁腈橡胶是适用于高温高压深井条件的密封制品,但由于氢化丁腈分子链上的少量不饱和键在高温下极易发生热氧老化而失去密封性,与橡胶胶筒配套的井下工具封隔器不能在井下长期有效工作.本文从提高橡胶分子主链的饱和度着手,采用单官能度的不饱和羧酸盐—氢氧化单甲基丙烯酸锌对橡胶基体进行改性增强研究,来提高复合橡胶材料的高温力学性能.同时,通过建模、加载、计算分析,对橡胶胶筒结构进行了组合式设计优化,提高了复合橡胶材料的耐压性能.并通过在现场应用耐高温高压复合橡胶长效密封技术,验证了复合橡胶密封件达到了耐温≥170℃、压差≥35 MPa、有效期≥1年的技术指标要求,实现了深层油气藏的高效精细开发.

文中以东南亚某河口航道疏浚工程为例,介绍了耙吸式挖泥船在航道疏浚过程中,利用河道汉口涨落潮水流规律,结合疏浚土质情况,合理利用溢流施工方式提高疏浚施工效率的应用案例.并通过分析,总结了溢流施工在航道疏浚施工过程中的运用规律.为耙吸式挖泥船在复杂水流条件下的挖泥施工安排提供了参考.

The utility model provides a portable ground installation of magnetic crack detector, portable ground installation of magnetic crack detector and collection system in the pit are connected, portable ground installation of magnetic crack detector includes power supply unit, well logging signal processing unit, range data acquisition unit and data communication unit, the power supply unit with the well logging signal processing unit connect, the power supply unit with range data acquisition unit connects, the well logging signal processing unit with the data communication unit connection, range data acquisition unit with the data communication unit connection. This portable ground installation of magnetic crack detector has accomplished each function of logging well data transmission, processing, preserving and sending, and the continuation and the stability of the upper and lower normal function of well have also been guaranteed to the power supply unit, has realized the use to trade well logging portable equipment.

车镇凹陷内部发育有陡坡带、缓坡带以及洼陷带三种类型的构造带，不同类型构造带构造特征的不同导致其油气成藏具有差异性。陡坡带和缓坡带油气较为富集，洼陷带缺少油源断裂，勘探程度相对较低。其中，近岸水下扇、湖底扇是陡坡带常见的油气聚集场所，缓坡带的油气则主要富集于古近系三角洲、深水浊积扇以及滨浅湖砂体。

The invention relates to an oil, gas and water extraction apparatus and concretely relates to a pneumatic screw pump hybrid-mixing oil extraction technology tubing string. The pneumatic screw pump hybrid-driving oil extraction technology tubing string comprises a screw pump, a coupling, a liquid charging short section, an oil pipe and liquid inlet holes evenly formed in the liquid charging short section, and further a pneumatic motor with two ends respectively connected with the coupling and the liquid charging short section and a gas injection pipe connected with the pneumatic motor. Natural gas is injected into a well, so the screw pump can be driven by the pneumatic motor to extract oil; liquid extracted by the screw pump can be attenuated by the natural gas discharged out of the pneumatic motor, so mixed liquid density is decreased and fluid column pressure can be effectively reduced; produced liquid can be accelerated to upwardly flow and then discharged via the oil pipe, so oil well continuous oil extraction with small flux can be guaranteed; oil layer long term exploitation can be maintained; and problems of incontinuity of oil layer pumping and oil layer damage due to manual exploitation can be avoided.

The spatial-temporal evolution of the basin structures plays important roles in controlling the generation, migration and accumulation of hydrocarbon. Based on the analysis of the large amounts of seismic data and lithological materials, the features and evolution of the controlling fault systems in different tectonic stages were discussed. In addition, the structural characteristics, reservoir-forming conditions and distribution of different structural units were compared. The results showed that the basin structure of Dongying Sag changed in Cenozoic which was controlled by the development and evolution of the fault system. In the early phase, it exhibited northeast faulting, southwest overlapping feature. Later, it turned to a north faulting, south overlapping structure. Besides, reservoir-forming conditions and distribution of different structural units also changed. Hydrocarbon accumulation of abrupt slope belt was related to the development of rolling anticline, fault nose and sandy conglomeratic body and that of gentle slope belt was mainly controlled by the development of large rolling anticline, while the hydrocarbon accumulation of sag belt was related to turbidity sand body. And the possible favorable reservoir forming area is along the long axle of the central anticline belt.

永安镇地区油藏丰富,断层不仅控制着构造带的形成,而且对油气的运聚成藏也起到非常关键的作用.在对大量地震及岩心资料研究的基础上,对主干断层的发育特征进行了分析;并结合断层活动速率及断层不同部位在不同地质时期封闭性的模糊综合评价,对主干断层不同部位的油气输导能力进行分析,明确研究区断层与油气成藏的关系.结果表明,永3断层东段和永41断层东段的活动时期与生、排烃期相匹配,但封闭性好,不利于油气的侧向输导;永3断层西段、永41断层西段及永67断层的活动持续时间长,与生、排烃期具有良好的匹配关系,且封闭性差,可以为油气的侧向运移提供运移通道,是研究区油气成藏的有利地区.主干断层的组合方式及其输导性和封闭性的差异使研究区油气藏的分布层位由南向北依次变浅,形成了阶梯状的油气成藏模式.

Integrated hollow water segregator was developed for there were many problems existed was the hollow separated layer water injection technology such as the mass work in allocating,the difficulties in the adjusting of water gate and the limitations of the tubular column.Working together with other allocating instruments,the segregator could test and allocate all the layers simultaneously without the measurement of bibulous instructions curve and the calculation of water gate.This allocating method is more congruously to the normal conditions of the injection wells.It avoids the effects of pressure in zonal testing and makes the allocation more accurate and efficient.It has been used in the oilfield for more than 50 times with allocating accuracy above 90%.And it shortened the allocating time from 24 hours to 8 hours.

When double string injection technology was used on offshore wells the safety control turned out to big problem to be solved.A safety control device was developed.After design and improvement,the double controllable safety valve was developed for double string water injection in offshore oilfield.It can control the safety of both inner center space and outer annulus space.This can meet the safety production requirement for the offshore oilfield.By now it has been successfully used in 10 wells.The one grade two sections block efficiency is improved greatly and it has an important significance in offshore oilfield water injection.