喇嘛甸油田厚油层内液量劈分方法研究

喇嘛甸油田储层发育以厚层为主,层内动用状况差异大,科学合理的动态数据细分方法是改善喇嘛甸油田厚油层动用状况的技术关键。本文在油水井沉积单元液量劈分的基础上,结合监测资料、岩心资料及水淹资料,通过各参数与液量的相关性回归计算得到厚层内液量劈分校正系数,最终实现喇嘛甸油田厚油层内不同部位液量的精确劈分。该液量劈分方法结果合理可靠,能够有效指导喇嘛甸油田厚油层后续精细挖潜调整措施的实施。     

苏里格气田气井产量劈分方法适用性评价

本文在利用实测的基础上,对单井轮换计量法、节流器计算经验公式、产能公式法、产层性质参数确定劈分系数4种方法的公式合理性、不同压力下节流器计算公式适应性及丛式井组劈分系数的可靠程度进行评价,初步形成气井在不同工艺、不同生产阶段时的气井产量劈分方法。     

劈产计算方法研究及实用结果分析

应用多孔介质渗流理论、油气藏开发地质理论、油藏精细描述、开发动态分析理论、流动单元理论以及油田非均质对策论等基础理论,对提出的劈产方法进行理论基础分析。研究表明,Ci方程法能够描述实际油气藏的本质特征。同时,对劈产方法计算中参数值的确定进行深入的理论分析。选取陆相多层砂岩油气藏进行劈产计算,证明Ci方程法理论基础扎实,实用效果好,可较好地揭示油气藏的动态变化特征及其规律性。     

注水开发稠油生产井劈产方法研究

以多孔介质渗流力学、油气藏开发地质学、油藏精细描述技术、开发动态分析方法、流动单元、油田非均质对策论和油藏流场为基本理论基础,通过对注水开发方式生产的稠油油气藏所表现出的动态特征研究,首次提出了稠油生产井的劈产方法。在已经全面注水开发的稠油油气藏,将由应用该方法所得的计算结果与油藏特征再认识结论对比、综合分析,劈产分析可以揭示油气藏动态特征及其变化规律性,表明本方法可行、合理;本项工作的结果,不仅对实际稠油油气藏的动态分析具有重要意义,而且为注水开发稠油油气藏稳产高产技术的优化设计奠定了扎实的理论基础。     

水驱多层砂岩油田分层注采劈分量化技术研究

对于注水开发多层砂岩油田,分层监测资料连续性差、覆盖率低、精度达不到单砂体尺度等问题,提出了基于单砂体尺度的分层注采劈分方法 :以渗流理论为基础,井组注采平衡为依据,兼顾油水井各小层油层条件(渗透率、厚度、原油粘度、连通系数)和开发条件(注采井距、生产压差、改造措施)等因素,由注入端出发,先将水量纵向劈分到单砂体,再依据平面分配系数,考虑各方向液量的合理分配,得到采出端各小层的分层产液,最终通过不同时间步分层含水控制,实现产量劈分。     

油水井产量劈分在多层油藏精细开发中的基础作用与应用

油水井产量劈分是多层油藏精细开发的重要前提,产量劈分正确与否将在很大程度上决定油藏精细开发的成败,显然,在多层油藏精细开发的过程中,油水井产量劈分是关键,因此在多层油藏精细开发的过程中设计出一套切实可行的、科学合理的产量劈分方案具有非常重要的意义。本文从油水井产量劈分的相关概念谈起,然后对多层油藏精细开发的相关问题进行了系统的说明,紧接着对油水井产量劈分在多层油藏精细开发的过程中所发挥的作用进行了论述,最后对油水井产量劈分在多层油藏精细开发应用中的相关问题给予了详细的剖析和说明。     

注采劈分方法在油藏剩余油分布研究中的应用

本文立足现有的动静态资料,对主力油层的注水和采出状况进行了初步分析,在选定的注采系统内采用注采劈分方法对天然能量开发区和注水开发区的产量、产水量和注水量进行了合理劈分,达到了油藏剩余油定量分析的目的。实例表明,本方法简单,合理,是一种定量研究油藏剩余油的有效方法。     

动态法评估证实已开发储量影响因素研究

证实已开发储量(PD)是石油企业生产经营的重要指标,其中采用动态法评估部分是SEC储量体系的核心,准确评估和预测这部分储量对石油企业生产经营具有重要意义。本文在调研前人成果和深入研究SEC储量评估规范基础上,建立了动态法PD储量影响因素体系,回归了冀东油田动态法评估PD储量单元原油价格、操作成本、成本劈分比例和递减率等技术经济参数与PD储量变化规律,研究了评估单元划分对PD储量的影响,为今后油田SEC储量评估工作提供技术支持。     

纤维矿渣微粉混凝土高温中的劈拉性能

通过高温（200～800℃）劈拉试验,测定124个纤维矿渣微粉混凝土（FRC-GGBFS）试件的劈拉强度和荷载—横向变形曲线,探讨温度、矿渣掺量、钢纤维掺量和聚丙烯纤维掺量对FRC-GGBFS的高温中劈拉强度和变形的影响,并通过不同温度下扫描电镜分析,探讨FRC-GGBFS的高温劣化过程。结果表明：随温度升高,FRC-GGBFS劈拉强度不断劣化,劈拉荷载—横向变形曲线渐趋扁平,韧性显著下降;矿渣微粉掺量为40%时,其对混凝土的高温中劈拉性能的改善最为显著;钢纤维显著提高了FRC-GGBFS的高温中劈拉强度和韧性;聚丙烯纤维能有效防止高温爆裂,其掺量为0.9 kg/m3时对FRC-GGBFS的高温中劈拉性能有明显改善。最后,建立了考虑温度、钢纤维体积率等影响的FRC-GGBFS高温中劈拉强度计算模型。     

水驱油田分层加密潜力的确定

本文应用分层经济合理井网密度计算模型和动态数据劈分模型将经济合理井网密度研究细化到地下的油层,针对不同油层的物性和开发特征确定了分层井网的加密潜力,使井网的调整和加密具有更强的针对性,为今后油田的开发调整、政策制定提供一定的参考基础和依据。     

Experimental relationship between splitting tensile strength and compressive strength of GFRC and PFRC

This paper describes an experimental investigation into the relationship between the splitting tensile strength and compressive strength of glass fiber reinforced concrete (GFRC) and polypropylene fiber reinforced concrete (PFRC). The splitting tensile strength and compressive strength of GFRC and PFRC at 7, 28 and 90 days are used. Test results indicate that the addition of glass and polypropylene fibers to concrete increased the splitting tensile strength of concrete by approximately 20-50%, and the splitting tensile strength of GFRC and PFRC ranged from 9% to 13% of its compressive strength. Based on this investigation, a simple 0.5 power relationship between the splitting tensile strength and the compressive strength was derived for estimating the tensile strength of GFRC and PFRC.     

PRO／E软件在模具分模中的应用

本文介绍了Pro／E模具设计的基本流程，详细归纳了分模的常见方法，并对分模失败提供了相应的处理方案，所有结论希望能对相关人员在实际工作中有一定参考作用。     

有机硅裂解生产装置改造

介绍了以溶剂油为载热体的甲基氯硅烷水解物裂解技术原理、工艺流程、产业化过程和效果.通过用溶剂油为载热体进行水解物裂解及混合环硅氧烷精馏,生产出聚合物中间体八甲基环四硅氧烷(D4),该产品用于合成高温硫化硅橡胶、室温硫化硅橡胶、硅油等.     

COPET/PET海岛复合纤维的碱减量处理及其对纤维结构的影响

采用1％的NaOH溶液,在100℃条件下,对COPET/PET海岛复合纤维进行碱处理,考察了碱处理时间对碱减率和纤维开纤情况的影响,发现随碱处理时间延长,纤维碱减率增大,开纤效果好。综合纤维的碱减率和开纤情况认为,在给定条件下,40分钟的碱处理条件较优。     

海岛型超细纤维纺织品的染整

着重介绍了海岛型超细纤维及其织物的染色性能和纤维的剥离开纤,讨论了海岛型超细纤维的染色加工、染色时控温注意点和纺织品的后整理。     

Effect of temperature and aging on the mechanical properties of concrete: Part I. Experimental results

This paper reports the results of curing temperature and aging on the strength and elastic modulus and the Part II paper suggests a prediction model based on these experimental results. Tests of 480 cylinders made of Types I, V, and V cement+fly ash concretes, cured in isothermal conditions of 10, 23, 35, and 50 °C and tested at the ages of 1, 3, 7, and 28 days are reported. According to the experimental results, concretes subjected to high temperatures at early ages attain higher early-age compressive and splitting tensile strengths but lower later-age compressive and splitting tensile strengths than concretes subjected to normal temperature. Even though the elastic modulus has the same tendency, the variation of elastic modulus with curing temperature is not so obvious as compressive strength. Based on the experimental result, the relationships among compressive strength, elastic modulus, and splitting tensile strength are analyzed, considering the effects of curing temperature, aging, and cement type.     

Effects of charge density on water splitting at cation-exchange membrane surface in the over-limiting current region

To determine the correlation between surface properties and concentration polarization (CP) behaviors, cation exchange membranes with varying fixed charge densities were prepared and characterized by using several electrochemical analyses such as chronopotentiometry, zeta potential, and current-voltage measurements. Results showed that CP behavior depended mainly on surface charge density. With higher surface charge density, stronger electroconvection was observed, suggesting that an increase in the surface charge density increased the concentration of the counter ions at the membrane surface. As such, the electric field around the membrane surface was strengthened at a current over the limiting current density. Water splitting was also proportional to the surface charge density. This result was consistent with the classical electric field-enhanced water splitting theory, indicating that water splitting increased due to increases in the electric field and prepolarization of water molecules at the membrane-solution interface of the cation-exchange membrane. This paper is dedicated to Professor Hyun-Ku Rhee on the occasion of his retirement from Seoul National University.     

Effect of temperature and aging on the mechanical properties of concrete: Part II. Prediction model

In Part I, empirical relationships between compressive strength and splitting tensile strength or elastic modulus with temperature and aging were proposed. This paper investigates new prediction models estimating splitting tensile strength and elastic modulus without knowing compressive strength. The prediction model is suggested on the basis of the equation that was suggested to predict compressive strength. The mechanical properties calculated by the model are compared with empirical results presented in Part I. To evaluate in-place applicability of the model, the empirical data on strength and elastic modulus of concrete cured at variable temperature are compared with the values estimated using the prediction model. The prediction model properly estimates the strength and elastic modulus of Types I and V cement concretes cured at constant and variable temperature conditions.