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四川盆地裂缝—孔隙型（或裂缝型）砂岩气藏普遍具有低渗透和裂缝性的特点。各种钻完井液对砂岩储层的损害严重，四川石油管理局井下作业处研究开发了SD土酸解堵酸化体系，该酸液体系以解除泥浆污染堵塞为主要目的，具有优良的配伍稳定性，特别对粘土及漏入储层堵塞孔道的泥浆等堵塞物具有较好的溶解能力，能达到解堵、恢复储层产能的效果。该土酸体系还可作为加砂压裂的预处理液，具有降低地层破裂压力、改善储层可压裂性的功效，具有很好的推广应用价值。文章主要介绍了SD土酸解堵酸化体系的作用原理、性能、现场配制及安全防护与施工应用，并介绍了解堵酸化井的评层选井要点，为了能使土酸解堵酸化获得更理想的增产效果，就必须综合分析静、动态地质资料，充分认识储层的潜在增产能力，来决定是否进行土酸解堵酸化。同时也简单介绍了措施井的后期管理。     

TSS1126型脱水振动筛的设计与分析

针对原１万ｔ／ａ橡胶后处理装置中脱水振动筛存在的问题，在５万ｔ／ａ橡胶后处理装置中设计了ＴＳＳ１１２６型激振电机式振动筛，并对其进行了运动学参数的计算和自同步动力学分析，较好的解决了生产中的振动问题。     

塔里木盆地构造—地层组合特征

分析研究塔里木盆地构造－地层组合特征，对寻找塔里木盆地大油气田具有重要意义。根据该盆地构造、沉积发育特征，将它划分为前震旦系基底构造－地层、震旦系—下二叠统海相克拉通盆地构造－地层、上二叠统—中、新生界前陆盆地构造－地层三大组合系统。前震旦纪基底性质南北有别，南塔里木地块以前长城系的混合片麻岩、麻粒岩为基底，而北塔里木地块则以中、上元古界的浅变质岩为基底。基底的南北差异造成盆地盖层中构造－地层组合的差异，震旦纪—早二叠世为海相克拉通盆地发育期，震旦纪发生板内裂陷形成库鲁克塔格—满加尔坳拉槽，早寒武世—奥陶纪和石炭纪是盆地两次大的海侵期，沉积了富含烃类的碳酸盐岩建造；晚二叠世—中、新生代为前陆盆地发育期，晚海西运动使南天山全面崛起形成库车前陆盆地，中、新生代随着南天山褶皱冲断带的不断南移，前陆盆地也不断向南推进、扩展，沉积了巨厚的含煤、含油建造。     

射孔孔眼磨蚀对分段压裂裂缝扩展的影响

非常规油气藏分段压裂施工中常利用射孔限流法促进段内多条水力裂缝均匀发育,压裂过程中,支撑剂会逐渐磨蚀射孔孔眼,致使射孔孔眼的限流作用失效。为研究射孔孔眼磨蚀现象对分段压裂中多裂缝发育的影响情况,耦合了孔眼磨蚀模型和水力裂缝扩展模型,建立了考虑射孔孔眼磨蚀的水平井分段压裂裂缝扩展模型。模拟结果表明:随着支撑剂磨蚀破坏射孔孔眼,孔眼的限流能力显著下降,导致压裂段内各水力裂缝尺寸差距增大。基于所建立的数值模型,研究了不同支撑剂浓度、压裂液排量条件下射孔孔眼磨蚀对压裂段内多条水力裂缝扩展的影响。结果表明:(1)压裂液内支撑剂浓度越高,射孔孔眼初期的磨蚀速度越快;(2)支撑剂浓度变化对段内裂缝扩展延伸的影响较小;(3)压裂液排量越高,射孔孔眼限流效果越好,压裂段内各裂缝发育越均匀。最后建议在分段压裂施工中尽可能提高压裂液排量,这将有助于压裂段内各裂缝的均衡发育。     

地铁专用间接蒸发冷却器布水方式优化

为了解决常规间接蒸发冷却器由于表面水膜均匀性、完整性差而导致换热效率低的问题,提出了两侧旋转布水间接蒸发冷却器,进行了3种布置方式下的换热性能实验,运用正交实验对影响换热器性能的因素进行研究,研究表明:开孔正对气流方向时换热器换热性能最佳,且旋转布水装置存在最佳转速76r/min,喷水量、空气流速、冷却水流量、冷却水进口温度的增加使换热器的换热量增大,喷水温度、空气温度的升高使换热器的换热量减少,其中冷却水进口温度的改变对换热性能的影响最为显著,温度由35℃上升到39℃时,换热量提高37.62%,单位面积换热量为1.14kW,该换热器可安装于地下车站排风坑道内,可有效地解决地铁站冷却塔安装位置难题。     

APU冷却通风系统温度测量与分析

通过加装在辅助动力装置（APU）舱内和APU附件表面的温度传感器对舱温和附件表面温度测量,研究了一个典型的飞行剖面各温度变化情况。测试数据分析表明,舱内测点的最高温度值都是出现在地面利用APU启动主发时。当APU存在电负载和气负载时,环境温度和附件表面温度比不带负载会有5℃左右的上升。另外,较小的飞行速度对APU舱的冷却通风是有利的,但随着速度的继续增大,冷却通风效果变差。     

现代化大型选煤厂主洗及运输设备自动保护与控制

以神华神东煤炭集团洗选加工中心石圪台选煤厂为例,评述了现代化大型选煤厂在选煤及运输设备自动控制与保护方面的技术革新。     

Failure pressure calculation of fracturing well based on fluid-structure interaction

Failure pressure is a key parameter in reservoir hydrofracturing operation. Existing analytical methods for calculating the failure pressure are based on the assumption that borehole fluid is under two extreme conditions: non-infiltration or complete infiltration. The assumption is not suitable for the actual infiltration process, and this will cause a great error in practical calculation. It shows that during the injection process, the dynamic variation in effective stress-dependent permeability has an influence on the infiltration, and the influence also brings about calculation errors. Based on the fluid-structure interaction and finite element method (FEM), considering partial infiltration during injection process, a numerical model for calculating rock failure pressure is established. According to the analysis of permeability test results and response-surface method, a new variation rule of rock permeability with the change of effective stress is presented, and the relationships among the permeability, confining pressure and pore pressure are proposed. There are some differences between the dynamic value of permeability-effective-stress coefficient observed herein and the one obtained by the classical theory. Combining with the numerical model and the dynamic permeability, a coupling method for calculating failure pressure is developed. Comparison of field data and calculated values obtained by various methods shows that accurate values can be obtained by the coupling method. The coupling method can be widely applied to the calculation of failure pressure of reservoirs and complex wells to achieve effective fracturing operation.     

端部脱砂压裂技术新模型

在分析端部脱砂压裂的机理及技术特点的基础上，针对中高渗透地层建立了一套能准确反映压裂液真实流动情况的三维滤失模型，并针对该技术模拟精度高于常规压裂的要求，建立了一套考虑缝高压降的裂缝三维延伸模型，最后提出了完整的端部脱砂压裂设计过程。     

TiCr1.2(V–Fe)0.6—a novel hydrogen storage alloy with high capacity

To develop a new alloy with high hydrogen storage capacity, partial Cr in TiCr_1.8 was substituted by V–Fe alloy. X-ray diffraction and metallography observation proved that the substitution did not change the phase constitution of TiCr_1.2(V–F)_0.6. It still remained in its initial Laves phase related body centred cubic structure. Pressure–composition–temperature tests showed that the hydrogen storage capacity could reach up to 3.2 wt% and its reversible capacity to about 2.0 wt%. TG-DSC tests showed that there are two kinds of tetrahedral site for hydrogen atoms to locate.