oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 410 )

2018 ( 8497 )

2017 ( 8692 )

2016 ( 9342 )

Custom range...

Search Results: 1 - 10 of 382285 matches for " 王志涛 "
All listed articles are free for downloading (OA Articles)
Page 1 /382285
Display every page Item
考虑无效注水的合理注采比研究
Research on Reasonable Injection-Production Ratio Considering Invalid Water Injection
 [PDF]

, 小欣, 周宇洋
Open Journal of Nature Science (OJNS) , 2016, DOI: 10.12677/OJNS.2016.42023
Abstract:
注水开发油田一般是通过注采平衡来保证油井具有旺盛的生产能力,要实现注采平衡就必须有一个合理的注采比。但是油田在长期的注水开发之后,不可避免地会产生一部分无效注水,而某一时刻的无效注水比例是难确定。本文以物质平衡原理与Logistic旋回理论为基础进行了考虑无效注水的合理注采比的理论推导,同时推导出了确定无效注水比例的理论计算方法。基于实际Z油田的生产数据,对该油田的合理注采比进行了计算,并与应用油藏数值模拟方法确定出的Z油田的合理注采比进行了对比,验证了此方法的正确性,该方法对油田确定合理的注采比有一定的指导意义。
Waterflooding oilfield usually needs injection-production balance to ensure production wells have a strong production capacity. In order to realize the injection-production balance, it must have a reasonable injection-production ratio. But in the long-term waterflooding oilfield, it will produce part of invalid water injection inevitably, and the proportion of invalid water injection at a certain moment is difficult to determine. Based on the material balance principle and the Logistic cycle theory, theoretical derivation of reasonable injection-production ratio considering of invalid water injection is established, and the theoretical calculation method of the invalid water injection rate is also derived. Based on the production data of actual Z oilfield, reasonable injection-pro- duction ratio of the oil field is calculated, and reasonable injection-production ratio of Z oilfield with application of reservoir numerical simulation method to determine has carried on the contrast, so validate the correctness of this method. This method to determine reasonable injection- production ratio of oilfield has certain guiding significance.
藏药加哇中黄酮类成分和阿魏酸的定量分析
,
中国中药杂志 , 1999,
Abstract: 目的:建立藏药加哇中甘草查耳酮甲、阿魏酸、异甘草素和川陈皮素的含量测定方法。方法:ODS柱,流动相甲醇1%醋酸(73∶27,28∶72,59∶41)和甲醇水(65∶35),检测波长345,320,345,332nm。结果:甘草查耳酮甲、阿魏酸、异甘草素和川陈皮素含量分别为0.728,0.124,0.0830,0.0237mg/g,平均回收率分别为99.45%,98.13%,97.81%,96.58%。结论:为藏药加哇的质量评价、质量控制和开发利用提供了依据。
基于网络的国际新创企业知识转移影响因素分析
,职鹏飞
科技进步与对策 , 2009,
Abstract: 通过网络进行知识转移是国际新创企业进行知识积累的重要形式。从理论上分析了网络渠道、网络关系、网络距离和网络位势4个因素对知识转移的影响,阐述了各因素对知识转移的影响,提出了4个有待检验的命题。网络国际新创企业知识转移影响因素
无机盐诱导凝胶法制备纤维素气凝胶
,
过程工程学报 , 2013,
Abstract: 在纤维素-7%NaOH-12%尿素水溶液体系中加入少量无机盐诱导和促进体系形成凝胶,研究了不同种类和用量的无机盐对凝胶形成过程的促进作用,促进能力依次为阴离子相同时,钾盐>钠盐>锂盐;阳离子相同时,氯盐>溴盐>硝酸盐.无机盐浓度越高对凝胶形成的促进作用越明显.在此基础上结合溶剂置换和超临界CO2干燥技术,提出了无机盐诱导凝胶法制备纤维素气凝胶的新工艺,用SEM、氮吸附仪和压汞仪对所制气凝胶材料进行了结构表征,材料具有介孔到大孔范围的多孔结构,介孔的比表面积为284m2/g,孔体积为2.0cm3/g,平均孔径为20.5nm;大孔的孔体积为13.95cm3/g,平均孔径为0.732μm,孔隙率达91%.
iκbl:iκb家族的成员之一?
,伟?
生物化学与生物物理进展 , 2015,
Abstract: iκb家族是一组能够与转录因子nf-κb直接结合并调节nf-κb活力的蛋白.iκb蛋白结构上的普遍特点是拥有负责与nf-κb结合的多个锚蛋白(ankyrin)重复序列.iκbl包含ankyrin的重复序列并且能够抑制lps诱导的nf-κb激活.然而,iκbl与nf-κb能否直接结合仍不确定.本文综述了iκb家族成员结构和功能上的特点,并分析了iκbl是否应被视为iκb家族成员之一.
基于精确传感网络的智能交通系统交通流模型
,
计算机应用 , 2012,
Abstract: ?首先介绍了基于精确传感网络的智能交通系统(its)相对于传统交通流传感器网络的优势;然后基于组合预测理论对这类网络的基本交通流模型进行了研究,在模型中引入了更加精确的交通流物理量,包括旅行时间、路段上游及下游的分类交通流量等变量,使所建立模型的可解释信息量更加丰富和易懂,该模型算法为动态算法。交通实测数据实验证明模型的拟合精度较高,拟合值与真值的平均绝对误差值控制在9s以内,平均相对误差值控制在5%以内,综合各个时段来看,预测的准确度都在90%以上。最后总结了基于精确传感器网络的智能交通系统在实际交通应用中的重大价值。
水平井–直井联合开发井网压裂水平井参数优化
Optimization of the Fracture Parameters of Fractured Horizontal Well of Horizontal Well-Vertical Well Joint Development Well Pattern
 [PDF]

, 钟会影, 小欣, 周宇洋, 刘巍
Open Journal of Nature Science (OJNS) , 2016, DOI: 10.12677/OJNS.2016.42022
Abstract:
由于水平井钻井技术的飞速发展,水平井–直井联合开发技术已经逐渐成熟,然而在设计油田开发方案和油藏工程计算时,对于压裂水平井–直井联合开发井网压裂水平井参数的优化还比较少。本文依据大庆某外围低渗透薄层水平井–直井联合开发油田的地质特征和开发特征,应用油藏数值模拟Eclipse软件并采用LGR局部加密网格技术建立了具有代表性的机理模型,从而对水平井–直井联合开发井网压裂水平井的参数进行优化,研究结果为类似水平井–直井联合开发油田压裂水平井参数优选提供了指导。
Due to the rapid development of horizontal well drilling technology, Horizontal well-Vertical well joint development technology is gradually mature, but in the oil field development plan design and the calculations of reservoir engineering, optimization of the fracture parameters of fractured horizontal well of Horizontal well-Vertical well joint development well pattern is relatively less. According to the geological characteristics and development characteristics of a peripheral low permeability thin layer Horizontal well-Vertical well joint development oil field in Daqing, and applying the reservoir numerical simulation software Eclipse with the LGR technology, the typical mechanism model is established. Then the fracture parameters of fractured horizontal well of Horizontal well-Vertical well joint development well pattern are optimized. The results can provide guidance for the optimization of the fracture parameters of fractured horizontal well in the similar oil fields of Horizontal well-Vertical well joint development.
A new species and a new combination of Alpinia Roxb. in China
中国山姜属一新种和一新组合

,
植物分类学报 , 2001,
Abstract: 卵唇山姜 新种 图版ⅠAlpiniaovataZ .L .ZhaoetL .S .Xu ,sp .nov .PlateⅠAbAlpiniastachyoidiHancediffertbracteolisoblongisetlabellisovatis.Herba ,1 .3~ 1 .5malta.Foliaelliptico lanceolata ,31~ 37cmlonga,3.5~ 7.5cmlata ,apiceacuminata,basiangustata ,utrinqueglabra ,marginedensetomentosa,n…
The identity of Alpinia jianganfeng T. L. Wu (Zingiberaceae)
箭秆风(姜科)的名实问题

,
植物分类学报 , 2003,
Abstract: Alpinia jianganfeng T. L. Wu is conspecific with A. sichuanensis Z. Y. Zhu, and thus is reduced to synonymy.
箭秆风(姜科)的名实问题
,
中国科学院研究生院学报 , 2003,
Abstract: 箭秆风Alpinia jianganfeng T.L.Wu一名应为四川山姜A.sichuanensis Z.Y.Zhu的新异名。
Page 1 /382285
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.