共查询到20条相似文献,搜索用时 312 毫秒
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聚乙烯醇(PVA)作为油井水泥降失水剂使用时,适用温度较低,难以满足高温固井的需求。通过 2-丙烯酰胺 -2- 甲基丙磺酸 (AMPS)、丙烯酰胺 (AM) 等单体,对 PVA1788 进行接枝改性,合成了一种油井水泥降失水剂——接枝改性聚乙烯醇。室内实验评价了该改性聚乙烯醇作为降失水剂使用的耐温性能、抗盐性能、流变性能、抗压强度及防气窜性能等。结果表明,加有改性 PVA 的水泥浆在 150 ℃时 API 失水可控制在 150 mL 以内;抗盐达 18%;改性PVA 明显改善了聚乙烯醇类降失水剂不抗盐的性能,稠化时间较原浆稍有延长,水泥石的抗压强度较原浆稍有提高,与其它外加剂配伍性良好,水泥浆具有很好的防气窜能力,综合性能能够满足150 ℃以下的中高温固井要求。 相似文献
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川庆物探公司川西经理部现有职工774人,组成6支物探作业队,其勘探足迹遍及川、渝、鄂、云、陕、甘、新疆、海南、内蒙古等地,享有“四川石油管理局红旗单位”、“四川省文明单位”、“全国模范职工小家”等美誉。 相似文献
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介绍了FS法精制技术在大庆分石化公司炼油厂的工业应用.结果表明,处理后的柴油各项指标均达到了国家标准的要求,该工艺具有投资少、流程简单、生产成本低的优点. 相似文献
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Chen Liqiong 《石油科学(英文版)》2009,6(4):383-388
Strata erosion is a widespread phenomenon in sedimentary basins.The generation,migration,and accumulation of hydrocarbon is influenced by the scale of erosion,so estimating the amount of erosion is essential in the analysis of oil and gas bearing basins.According to the geological features in the Subei Basin and the actual data,using the integrated method,we estimated the level of erosion at the unconformities caused by the Sanduo event.By using the mudstone interval transit time method and the vitrinite reflectance method on data from typical wells,it can be concluded that the Gaoyou,Jinhu,and Hongze depressions suffered strong strata erosion from the late Eocene to Oligocene,and the total strata erosion thickness was 300-1,100 m.Different tectonic units in the same depression have extremely uneven erosion intensity:the low convex regions have the maximum erosion thickness,amounting to 800-1,100 m;the slope regions have an erosion thickness of generally 600-800 m;the erosion thickness of the slope-hollow transition zone is 300-500 m.For the whole basin,we used the strata thickness trend analysis method combined with the interval transit time and vitrinite reflectance methods to estimate the erosion thickness in the Sanduo period.The results show that the most severe erosion of the Sanduo event in the Subei Basin is between 1,000 m to 1,200 m,mainly located in depressions around the Jianhu Uplift;the deep hollow area has the least erosion,generally about 300-600 m,and the erosion in the slope area is about 600-900 m.Compared with the northern part,the southern part has relatively little erosion.It is also proved that the Sanduo movement has heterogeneous intensity,and the western region has greater intensity than the eastern region. 相似文献
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彩色沥青混凝土路面的研究与应用可追溯到20世纪50年代,从欧美等国家开始研究,这种路面不仅可以与道路周围的建筑艺术更好地协调,而且还可以起到美化城市和诱导交通的作用,并且还能体现出一个国家或一个城市的特色和风格,提升整个城市的形象和功能,显示出现代化都市的气派和魅力.在这方面的探讨我国开始于20世纪80年代初,但在道路上应用尚少. 相似文献
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分子筛脱水装置在珠海天然气液化项目中的应用 总被引:3,自引:1,他引:2
介绍了广东珠海天然气液化项目中利用分子筛进行天然气深度脱水的工艺.该项目中面临的主要问题是天然气液化对脱水深度要求非常严格,同时又必须考虑到全厂三个系统间的气量平衡,分子筛的再生气量受限制.通过分析该项目的实际情况,对分子筛设计的主要工艺参数进行比较分析,确定了合理可行的脱水工艺方案. 相似文献
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结垢及除垢技术在管道中的应用研究 总被引:1,自引:0,他引:1
管道结垢危害巨大.针对管道结垢造成严重危害的现状,对管道结垢的机理进行了探讨,指出介质含水率高、含较多细菌、高矿化度且溶有一定量的腐蚀性气体(H2S,CO2和O2)以及结蜡现象的出现是导致管道结垢的主要原因.同时对影响结垢的各因素(如温度、压力、流速和pH值等)进行了分析.据此提出了预防管道结垢的方案,如选用耐蚀材料和添加化学药剂等,并提出了化学除垢和机械除垢等除垢的方法,可为管道的结垢及除垢提供指导和借鉴作用. 相似文献
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石油价格市场化与控制食品类物价上涨不是必然的两难选择。只要政策组合选配的好,油价市场化不仅不会刺激CPI的上涨或是彼此间的轮番上涨,反之,还会促进中国经济结构的转型与可持续发展。 相似文献
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中国石化山东石油公司所倡导的“人人关心企业,企业关心人人”以及“我为您的事业加油,您给我的生活添彩”等企业文化理念,巳深深熔铸在企业的生命力、竞争力和凝聚力之中。 相似文献
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Refineries often need to find similar crude oil to replace the scarce crude oil for stabilizing the feedstock property.We introduced the method for calculation of crude blended properties firstly, and then created a crude oil selection andblending optimization model based on the data of crude oil property. The model is a mixed-integer nonlinear programming(MINLP) with constraints, and the target is to maximize the similarity between the blended crude oil and the objective crudeoil. Furthermore, the model takes into account the selection of crude oils and their blending ratios simultaneously, and transformsthe problem of looking for similar crude oil into the crude oil selection and blending optimization problem. We appliedthe Improved Cuckoo Search (ICS) algorithm to solving the model. Through the simulations, ICS was compared withthe genetic algorithm, the particle swarm optimization algorithm and the CPLEX solver. The results show that ICS has verygood optimization efficiency. The blending solution can provide a reference for refineries to find the similar crude oil. Andthe method proposed can also give some references to selection and blending optimization of other materials. 相似文献
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“风气正、心气顺、士气高、正气浓”的局面在庆阳石化公司已经形成,全体职工“爱党、爱祖国、爱中油、爱庆化,爱岗位”的风尚已经建立,成为庆阳市乃至甘肃省职工职业道德建设的榜样。 相似文献
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从多年来海底管线常见的事故着手,重点分析了环境因素及人为因素对海底管线寿命的影响.以期通过交流,加强海管设计施工人为控制的水平,削弱环境因素对海底管线损坏的影响,提高管线的安全使用寿命. 相似文献