克拉玛依油田石炭系火山岩区断层封闭性研究

为填补克拉玛依油田火山岩断裂封闭机理及定量评价研究的空白,在解剖典型火山岩油藏的基础上,应用综合因子法,综合考虑断面正压力(σ)、断裂带泥质充填物含量(Rm)、断层紧闭指数(I),结合了流体指数F对克拉玛依地区4条主要断层的封闭性进行评价,结果表明,综合因子Q与断裂封闭性有正相关关系,克拉玛依地区由东南向西北,断裂级别依次减小,断层封闭性逐渐变差。综合因子法的评价结果与实际地质情况较相符,可作为火山岩区断层封闭性的评价方法进行推广。     

戈壁油田管道横断面图的设计

管道横断面图设计对管道管沟的施工起着重要的指导作用,合格的管道横断面图既可以使施工符合标准规范,又可以减小计价土石方,降低经济成本。结合戈壁地区地质、气候等特点,对常用的集油、注水埋地管道横断面图设计进行探讨,并提出相关的要求。     

Treatment of oilfield wastewater using algal–bacterial fluidized bed reactor

This study was carried out to investigate the ability of an artificial microalgal–bacterial consortium to remediate an oilfield wastewater using laboratory-scale fluidized bed reactors (FBRs) under lighting. The consortium consists of an oil-degrading bacterial community and a microalgae, Scenedesmus obliquus GH2. The microbes were immobilized onto Ca-alginate beads and filled to the FBRs. The influence of hydraulic retention time (HRT) on the removal of chemical oxygen demand (COD), total nitrogen, NH₃-N and oil concentration was investigated over 40 operational days. The synergistic relationship in the algal–bacterial microcosm was clearly demonstrated, since for the four parameters tested, the highest removal was recorded in the system inoculated with both algae and bacteria. In the algal–bacterial FBR, at 16 h HRT, the average effluent concentrations of COD, NH₃-N and oil were 92, 24 and 4.8 mg/L, respectively, corresponding to removal efficiencies of 70.8%, 61.2% and 84.2%, respectively. The effluent could meet the grade 2 as required by the national discharge standard of China. However, the effluent quality of the bacterial- or algal-only case could not satisfy the grade 3 discharge standard at 16 h HRT. The algal–bacterial biomass exhibits lowest effluent microtoxicity and highest dehydrogenase activity in comparison with bacterial-only and algal-only cases. This study reveals that the consortium containing dual microbial species has potential for microbial remediation of oilfield wastewater.     

Ahdeb油田水平井控水完井及一体化耦合模型

Ahdeb油田上部主力层系采用水平井注采井网开发，前期取得了较好开发效果，但开发过程中部分井组稳产与高含水矛盾日益突出，亟需开展水平井调流控水研究。针对Ahdeb油田这类边水或注入水在高渗层或断层裂缝带突窜引起的水平井见水，基于不同钻遇储层特征，形成了水平井控水完井分类治理方案，并建立了一套同时适用于盲筛分段组合、中心管和ICD控水完井工艺的井筒-油藏一体化耦合数值模型。该模型重点考虑了水平井筒受多种作用力下的变质量流动过程，提高了单井的模拟和实际含水率匹配度。研究表明：对于根部见水的水平井，ICD完井及中心管完井均有较好控水效果，含水率从49.8%分别下降至37.8%和35.0%。完井控水装置的限流范围应略大于出水井段，才能有效控制含水率。调流控水装置下入时机应选择在水平井见水前，能够最大程度降低整个生产过程中的含水率，从而提高单井累产油量。     

英东油田成藏条件及勘探开发关键技术

英东油田是柴达木盆地单个油藏储量规模最大、丰度最高、物性最好、开发效益最佳的整装油气田。通过对英东油田的地质再认识，对成藏条件及技术难题进行了攻关研究。研究结果表明：英雄岭地区位于柴西地区茫崖生烃凹陷，油源条件丰富，新近系油砂山组以宽缓的三角洲前缘-滨浅湖沉积为主，砂、泥岩纵向交替出现，砂体分布广泛且物性较好，泥岩为主要盖层，与古近系优质烃源岩形成一套完整的下生上储式生-储-盖组合；英东地区的大型滑脱断层沟通了古近系优质烃源岩和中、浅层构造圈闭，使早期聚集的油气藏发生调整，同时后期形成的油气持续运聚，深、浅层断裂形成"接力式"输导，在浅层晚期形成的构造圈闭中聚集成藏；中、浅层断层具备良好的侧向封堵性能，有利于油气的保存。针对英东地区复杂的地形地貌和油藏特征，形成了复杂山地三维地震采集处理解释一体化技术，为落实油气勘探目标奠定了基础。针对英东油田含油气井段长、流体识别难度大等问题，建立了长井段多油气水系统油藏开发模式、多条件约束复杂断块地质建模技术。通过明确英东油田的成藏机理，攻克工程复杂关键技术，为实现英东油田的高效开发和增储上产提供了重要的地质理论支撑和技术保障。     

基本公共服务均等化背景下吉林市社区养老问题研究

近年来，以推进基本公共服务均等化为依托而促进养老等社会服务的发展已成为各省市的重点工作之一，立足于吉林市市情，通过调查研究、定量分析等方式探索本地社区养老存在的问题以及对策。     

Preparation and properties of novel pH‐sensitive core−shell microspheres for enhanced oil recovery

A novel pH‐sensitive core?shell microsphere was synthesized by growing sodium acrylate as a shell on crosslinked polyacrylamide particles as the core by surface‐initiated atom transfer radical polymerization. The structures and characteristics of the microspheres were confirmed by Fourier transform infrared spectroscopy, ¹H NMR spectroscopy, SEM, transmission electron microscopy and AFM. The viscosity and size of the microspheres in response to changes in pH value were also investigated. As a kind of potential profile control and flooding agent, the performances of permeability reduction and enhanced oil recovery were studied in designed experiments. © 2017 Society of Chemical Industry     

复杂岩性储层压裂改造技术在歧口凹陷的应用

为解决大港油田歧口凹陷沙一下储层物性差、水敏性强、裂缝发育情况复杂和压裂施工成功率低等难题,研究出与储层配伍性较好的低伤害、高黏度压裂液。该压裂液残渣含量低、防膨性能好,并相应配套了加砂时机优选技术、前置液多级支撑剂段塞技术和压裂液流变性优选技术。该技术现场应用9井次,施工成功率由60%提高到100%,平均增产倍数由1.5倍提高到10.8倍,压裂效果明显。     

油田化学应用技术专业课程体系设计

通过对陕北油气田企业和油气田服务企业的调研,参考油田化学应用技术专业岗位群的职业任职要求,对照相关工种国家职业资格标准,对本专业课程体系进行了优化设计,建立以典型工作任务为载体的课程体系。